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Why Roofing is Important for Your House and Building

Why Roofing is Important (Blog Cover)

Roofing is important for various reasons, including your property’s value, well-being, functionality, and usability. While many people may overlook their roofs in favor of other aspects of a home, the roof is what shelters man. Of course, shelter is a fundamental need. But roofing is vital for many other reasons. 

Here at Roofer’s Guild, we are on the roofer’s side. We work with roofers and help them expand their businesses. So, we wanted to take some time to reiterate the importance of roofing to both roofers and consumers. 

Discover why roofing is the most critical aspect of your home or business. 



Roofs Improve Curb Appeal

Many property owners have the luxury of building aesthetically pleasing roofs – apart from building them to provide adequate protection from the elements. A roof can improve the curb appeal of your home. The right roof can also make your home more desirable to potential buyers. 

If you plan to sell your home shortly, you should be aware that the quality and looks of your roof will undoubtedly add (or detract) from the overall value of your home. For instance, a new roof can increase the value of your home by an average of $15,000

Of course, much of the ROI will depend on the initial roofing construction, what materials you use, and the quality of the craftsmanship. But these days, people are using their roofs to make a statement. 


Luxury Home with Roof Tiles

With the advent of custom soffits, fascia, and gutter systems, you can dial in the look of your roof to accent the rest of your home and outdoor areas.


Roofs Help Insulate Your Home

Maybe you have never lived in a house that didn’t have an insulated attic or roof. But if you have, then you know how uncomfortable it can get.

So, another vital role of your roofing system is to provide insulation for the lower living areas. An adequately insulated roof will help keep your living areas cool in the summer and warm in the winter. 

That’s not to say that you will never need to use your HVAC system just because your roof is insulated, but it will help keep your cooling and heating costs down.

For example, the EPA estimates that proper attic and roof insulation will reduce your heating and cooling bills by 15%.

Modern insulation and roofing materials are also improving at keeping your living areas comfortable in inclement weather.


Waterproofing and Insulating PVC

Expect your roof to play an even more significant part in insulating your home against the elements as time passes. 


Roofs Protect from Water Damage

Unfortunately, many things can cause water damage in your home: a leaky underground pipe, a malfunctioning water heater, and even overly humid air. But with a properly installed roof, you won’t have to worry about water damage from rain and snow. 

One of the essential roles of a roof is to protect the structure underneath from water damage. Many people take it for granted, but the next time you’re outside, take a good look at the structure of your roof. 

There is a perfect reason why the roof creates eaves – portions of the roof that extend out past your exterior walls. It’s to channel water away from your foundation and the exterior walls of your home.

The roof’s slope is also designed to drain water down off the structure so that water doesn’t get into your attic and damage your ceilings and walls. Even your gutters and downspouts help channel water away from your foundation.


Marks On Ceiling From Water Erosion

Everything about your roof’s design protects your home and building from water damage that can cause thousands of dollars in damage and pose a severe health risk


Roofs Add Dynamism to the Structure

Think about your home’s interior design. Maybe you have a sunken living room that you love or recessed lighting that affects just the right atmosphere. Interior design features are made possible by your roof. 

Your roof provides crucial structural support for your home and allows for a more dynamic design. The roof also allows for special wiring and ceiling construction.

Many people like high ceilings that give buildings a more expansive feel. Well, guess what? High ceilings wouldn’t be possible without the structural support of a well-built roof. You can see your roof as the structure that holds your entire house together. 


Roof Under Construction Using Lots of Tiles

While every part of the building more or less works together to contribute to the strength of the structure, the roof plays an integral role as it covers the entire building. 


Roofs Speak to the Quality of the Structure

Lastly, the roof is one of the most prominent features of your home or business’s exterior. When your roof looks shabby and unkempt, people perceive the entire building as ragged, bedraggled, and maybe even unsafe.

That’s bad enough for a residence, but imagine if that’s how your commercial building looks. Chances are, you’re going to lose out on some customers.

With this in mind, viewing your roof as an extension of your property and one of its most critical components is crucial.


Roof in Construction with Slate Tiles

Property owners should consider their roofs as an extension of their building and, in many cases, their company.


Final Thoughts on The Importance of Roofing

Property owners should not underestimate the importance of roofing. As you can see from the points outlined above, roofs help increase your property value while protecting it from the elements and keeping occupants healthy and safe.

Whether you are a residential homeowner or a commercial building owner, the roof represents a foundational element that will determine the functionality of the property.


Pros & Cons of Sealing Roof Tiles


While sealing roof tiles can offer benefits like reducing water absorption, preventing algae growth, and enhancing aesthetics, it is not always necessary or advisable.

On the surface, adding a coat of weatherproof sealant to any roofing material sounds like a good idea. After all, you add an extra layer of defense to your roofing material and, ultimately, your property.

However, properly installed tile roofs do not require sealing because they are designed to shed water naturally.


In the following post, Roofer’s Guild will discuss the advantages and disadvantages of sealing roof tiles.


Sealing Roof Tiles (Blog Cover)


Key Takeaway

Sealing roof tiles is not common because properly designed and installed roofing tiles should naturally resist water without needing additional sealant.


Benefits of Sealing Roof Tiles

Yes, there definitely are some benefits to sealing your roof tiles.


Take a look at the most important ones:


  • It May Prevent Cracking: Sealing may prevent tiles from breaking if you live in a colder climate where rainwater can freeze on the roof. When water enters hairline cracks in your roof tiles and freezes, the expansion can break the entire tile. Keeping the water out with a sealant may prevent this. 
  • It May Extend the Life of Your Tiles: An extra layer of water protection may help slow down the weathering of your tiles, potentially extending the life of the material by just a few years. 


Drawbacks of Sealing Roof Tiles

Before you go out and buy sealant or call up your local roofing contractor, take a look at some of the disadvantages of sealing roof tiles:


  • You Need to Pressure Wash the Tiles: Before you can apply a sealant, the tiles need to be as clean as possible. Most contractors will use a pressure washer that can strip the tiles’ surface material if not carefully done. Of course, to pressure wash, you will need to get up on the roof. Any time you step on roof tiles, you risk breaking them, which, as discussed, is one of their inherent disadvantages. 
  • It Could Ravage the Good Looks of the Tile: Sealant isn’t permanent. After just about a season, it will strip off, and the color of your roofing tiles goes with it. When a sealant wears and chips away with the rainwater and UV exposure, it can alter the appearance of your roofing tiles – rarely for the better. 
  • It May Not Be Worth the Effort: If you live in a stormy area, you may have to reapply sealant every couple of years, which can add up to a lot of money and effort that may not even be necessary. Plus, if you plan to do the work yourself, it can be hazardous to get up on the roof, pressure wash, and apply the sealant. 


Roofing Tiles and Pitched Roofs

Roofing tiles are only installed on pitched roofs. A pitched roof is simply a roof that has a slope. To be considered a pitched roof, a roof usually has to be sloped at an angle of 20 degrees. 

The slope is important because water can successfully be shed off the roof and down into the gutters at this angle with the help of good old gravity. As a result, roofing tiles are not sealed to the roof. They are individual pieces of slate, terra cotta, or concrete laid on top of each other in an overlapping fashion. 

Unlike roofing materials like asphalt shingles, tiles are not fastened to the roof. Instead, the overlapping placement and weight keep them in place and protect the roof’s decking. In addition, though they don’t create a single, continuous layer, the pitch effectively helps them shed water off the roof. 


Tile roofs differ from asphalt shingle roofs in that they are exclusive to pitched roofs, and the tiles are not fastened to the actual roof system. That distinction is the primary reason why sealing is uncommon.


What’s the Point of Sealing?

Sealing a roof entails adding a waterproof coat to the upper materials. The point of sealing any roofing material is to help keep water from absorbing into it.


Are Roofing Tiles Porous?

Salespeople say that roofing tiles are porous and susceptible to water absorption. And guess what? They’re not lying. Materials like concrete, terra cotta, clay, and slate are indeed porous. However, you must consider that roofing tiles are only installed on sloped roofs. 

While these materials may be porous, they can also be water-resistant. That’s because gravity sheds water off the roof for them. If roofing tiles were installed on a flat roof (and they would never be, to be clear), it would be a completely different story. 


You would have to seal your tiles every season, as the water would pool on them and permeate them constantly. 

But that’s not the case with sloped roofs. In general, roofing tiles on a sloped roof can afford to be porous. As a result, it’s not necessarily detrimental to the structural integrity or weatherproofing of the roof. 


We know what you might be thinking, ‘but roofs with tiles on them still leak sometimes.’ That is exactly right. But that happens for different reasons. Usually, when you get a leak in a tiled roof, it means that one or more of the tiles is broken.

One of the downsides of a tiled roof is that the older the tiles get, the more brittle they become. So, when you need to have some work done on a roof, old tiles can break under the pressure of footfall. 


Another reason tiled roofs leak is from a bad installation. Tiles must be carefully overlapped to provide full coverage.

Ridge caps also need to be installed carefully to protect the vulnerable point of the roof where the two slopes meet at the apex. 


Ridge caps also need to be installed carefully to protect the vulnerable point of the roof where the two slopes meet at the apex. 


Final Thoughts on Sealing a Tile Roof

In most cases, sealing a tile roof is not worth the investment. Instead, you should have your roof inspected by a professional once a year to ensure that no tiles need to be replaced.

In most cases, roofing tiles will provide enough weatherproofing on their own. However, if you live in a frigid region of the country, you may want to consider sealing roof tiles to prevent freezing and breaking. 


Is A Roof Certification A Warranty? (Full 2024 Explanation)


Is a Roof Certification a Warranty? (Blog Cover)

A roofing certification can be a warranty, but typically, contractors will introduce a separate formal warranty that covers any potential roof damage.

For many first-time home buyers (and even long-time homeowners), concepts like roofing insurance policies, warranting warranties, and roofing certifications can be very confusing.

Of course, everyone knows that the roof is a vital component of the entire structure. Still, few people understand the subtle nuances of after-installation roofing protection. 

Two common concepts that confuse one another are roof certification and roof warranty. While these ideas are very similar, it’s essential to know their subtle differences. When you don’t understand the difference, you may think your roof is covered in case of damage when it isn’t. 

And your roof is something you don’t want to leave to chance. Roofer’s Guild compares roof warranties and certifications in the following post.


The Difference Between A Roof Certification and A Roof Warranty

It’s easy to see how people confuse certifications with warranties. The concept behind both is essentially the same. But one offers protection in the case of damage, and the other does not.


Take a look at each concept, and you will see how they differ:


Roofing Certification 

A roofing contractor issues a roofing certification that thoroughly inspects your roof. They must be licensed in your state and offer inspection services.

They check your roof and make sure it is devoid of defects that would prevent it from functioning as intended. 

If they find no defects, they will certify that it will perform as intended for a certain period. The certification period can be anywhere from 1 to 5 years.

It is simply a document that contains a contractor’s certification that your roof will function appropriately for a certain amount of time. It does not provide any insurance if damage occurs. 


Roofing Warranty

A roofing warranty can take many forms, but the concept is always the same. You get a roofing warranty when a licensed roofing contractor works on your roof or installs a new one.

The warranty lasts for a certain period, just like a certification. 

But unlike a certification, a warranty will stipulate that the costs of certain repairs or material failures will be covered by the contractor who issued the warranty or by the manufacturer that issued the material warranty. 

As you can see, a warranty is a document that saves you money if something goes wrong with your roof. A certification is simply a document that says your roof should be fine for a certain amount of time. 

You should also note that a warranty is not an insurance policy. An insurance company does not issue the document.

Instead, it is an agreement between you and your contractor that the work they do will hold up for X amount of time. They will be responsible for repairs or re-roofing if it does not hold up.


Different Kinds of Roofing Warranties

There are many different types of roof warranties. Still, they usually fall into two categories: labor warranties and manufacturer warranties.


So let’s take a look at both kinds:


Labor Warranty

A labor warranty (sometimes referred to as a workmanship warranty) is a promise made by your contractors that they will cover any repairs needed due to poor workmanship.

This type of document covers things like faulty installations and substandard repairs. The warranty is issued directly from the roofing contractor.


Manufacturer Roofing Warranty

The manufacturer warranty is issued from the producers of the roofing materials used in your installation or roof repairs. This guarantees that the roofing materials will function properly for X amount of time. If they don’t, the manufacturer will be responsible for replacing the materials. 

The manufacturer warranty coverage length will vary greatly depending on the roofing materials used. With some materials, you can get 50 years or even lifetime warranty coverage. 


When is A Roofing Certification A Warranty?

A roofing certification can come with a warranty in some instances. However, you will have to ask the contractor or carefully review the certification document to ensure that it includes warranty terms. 

Certifications usually carry a warranty when licensed contractors carry them out for purposes other than insurance claims and home purchases/sales. 


What is A Roofing Certification Used For?

For the most part, roofing certifications are more for roofing insurance claims and can also be required when selling a home. In cases like these, though, the roofing certification will not carry with it a warranty. 

You may need a roofing certification in addition to a roofing warranty if you are selling a property that is of a certain age. Home selling is usually when roofing certifications are required as they more or less let the buyer know how long the roof will be problem-free. 

Your insurance carrier may also require a roofing certification after repairs or new roof installation. In addition, some insurance carriers will use the roofing certification to inform potential amendments to your roof insurance policy. 


What to Look for In a Roofing Warranty

As we mentioned earlier, there are many different kinds of roof warranties.

While you should always review the warranty carefully with your contractor or insurance provider, here are some general things to keep an eye out for:


  • Transferable: One of the most basic coverages for roofing warranties is transferability. This guarantees that if the owner of the house changes, the coverage will still stand for the allotted time. 
  • No Prorating: Your roofing warranty coverage limit shouldn’t diminish with time. Make sure that the warranty will not be prorated.
  • Comprehensive Coverage: As much as possible, try to get a warranty that covers as many different types of repairs as possible. Some warranties specifically cover things like wind damage and leaks, so try to get a warranty covering as much roof as possible. 

In summary, a roof certification can include a warranty, but it usually doesn’t. As a result, ensure you understand the difference between a certification and a warranty before your next roofing project.


20 Common Roofing Mistakes Made by Substandard Contractors


Common Roofing Mistakes (Blog Cover)

Common roofing mistakes happen daily and frequently don’t become evident until they cause a significant problem.

Unfortunately, it’s not uncommon for a roofing contractor to ruin a project and cause frustration for homeowners and building managers.

Failed inspections, voided warranties, and problems with your insurance company are just a few things that can result from a roofing mistake.

As a consumer, you must know the tell-tale signs of a substandard or inexperienced contractor.

That’s why, in the following post, Roofer’s Guild highlights some of the most common mistakes that substandard (or possibly inexperienced) roofing contractors make.



1) Using Roofing Nails that are Too Short

Almost every type of shingle has an ideal length of roofing nail. These standards are in place to ensure that the nail goes through to the decking. 

However, there are a lot of nail lengths to keep track of, and if you’re not diligent, you can easily end up using the wrong nail length. And one of the biggest problems is that the issue isn’t always evident to the roofer.

You may think that the nail has a good hold in the decking, but it could barely be penetrating the surface. 

It will only be after the contractor leaves and some wind starts to blow that the shingle will begin to shift. Once you have shingles that are shifting on the roof, it can seriously compromise the lifespan.

Remember that roofing nails need to secure the shingles into the decking, so they require proper nails for the type of shingles installed. 


2) Not Accounting for Slope

Different roofing materials are required depending on the roof’s slope. For instance, something like built-up roofing will never be appropriate on a pitched roof.

However, many novice roofing contractors simply want to offer their customers a wide array of roofing material options. 

This can be a pitfall even if it is born of good intentions. First, the slope has to be carefully measured to ensure proper roofing materials are used.

Too often, substandard roofing contractors will fail to accurately account for slope and use the wrong types of roofing materials. 


3) Recycling Flashing

By far, one of the most common roofing mistakes is simply cutting corners. In roofing, cutting corners often takes the form of reusing old flashing. Flashing is made of thin metal sheets. Its job is to waterproof the breaks in your roof line. 

For instance, where your chimney meets the shingles of your roof, flashing is installed to protect the seam created from water penetration.

During a re-roofing or shingle replacement job, it may seem that the existing flashing is in good shape. So some roofers may simply reinstall the old flashing once the job is done. 

However, the flashing should be replaced with every re-shingling or re-roofing job. It also needs to be replaced if it has been compromised in any way. 


4) Exposed Roofing Nails

The roofing nails need to be driven into specific locations in a shingle roofing system. Typically, the nail should be placed under a layer of shingles to protect it from the elements.

However, one of the most common roofing mistakes is putting the nail in the incorrect position.

When the nail is driven into a spot where it is exposed to the elements, it can cause it to corrode.

When the nail begins to rust, it can either cause a hole in the shingle or compromise the integrity of the nail – or both. In any case, it will leave your roof more vulnerable to leaks. 


5) Not Installing A Drip Edge

A drip edge is a metal flashing that should be installed under the leading row of your shingles. The purpose of a drip edge is to channel water that has drained off your roof into your gutters and away from the exterior walls of your building.

While modern building codes require a drip edge, some older homes don’t actually have them. 

When completing a roofing project, some roofers may assume that since your home is older and has no drip edge, it doesn’t need one. Unfortunately, this is a common roofing mistake.

It can even happen because the roofer doesn’t want to spend the time or the money installing a drip edge on a new roof. 

But the results of doing so can be catastrophic. Drip edges also prevent water from getting under the leading row of shingles.

When water is allowed to get under the leading row, the entire roof can be compromised. Not installing a drip edge can cost thousands of dollars in damage. 


6) Omitting Underlayment

Many people don’t realize that even residential roofing systems are made up of multiple layers. First, there is the decking, which is basically the foundation of the roof onto which all materials are secured.

Then there is the upper layer, which comprises your shingles, tiles, standing seam metal, or slate.

But between the undermost and uppermost layers is something called underlayment. The underlayment of a roofing system helps add a layer of water protection.

Underlayment is basically a sheet that is made of paper or an organic mat that has been treated with asphalt. 

It goes on top of the decking and underneath your roofing materials to prevent leaks in the most vulnerable roof areas, such as the valleys.

Unfortunately, once again, you will get some substandard contractors who will omit the underlayment to cut some corners and save some money. 


7) Disregarding Manufacturer Instructions

Most roofing materials come with instructions for the installer to follow. But one problem that many seasoned contractors have is thinking they know these instructions by heart and not reviewing them. 

And while the installation may still be done to professional standards, it might not have been done to the manufacturer’s standards. This can be problematic because it may void the manufacturer’s warranty. 

This is the best-case scenario. The worst-case scenario for disregarding manufacturer instructions is that the materials are not installed properly at all, which could lead to more expensive roofing issues down the line. 


8) Sagging Roof Gutters

Gutters need support to withstand water weight. Improper placement of screws can lead to gutter sagging. Other problems occur when gutters are too narrow.

For example, some homes have 4-inch gutters that cannot account for climates with consistent and severe rainstorms. Eventually, the water backs up and causes the gutters to sag.


9) Failure to Install Starter Shingles/Strips

Contractors should always lay down started shingles along the eaves and rake edges for sealing purposes.

Failure to install starter strips almost always causes water damage as the liquid can more easily penetrate the roof decking.

The use of starter shingles is typically within the contract, so make sure it gets done.


10) Not Having Roof Contractor Insurance

Contractors without proper insurance may not be responsible for injury or roof damage, which can pass the buck your way.

Any reputable roofer will present proof of insurance before working on your roof. However, some sketchy contractors will attempt to avoid the conversation and lull you into a false sense of security. 

Contact the insurance company to verify their policy if you suspect something amiss.


11) Mismatched Shingles

Roofers that install mismatched shingles will make their mistakes evident for everyone to see. This problem typically happens when the contractor buys materials from multiple suppliers for a single job.

Unfortunately, mismatched shingles can ruin curb appeal and suppress home value.


12) Poorly Installed or Secured Valley Flashing

Valley flashing is prone to water leaks because they typically withstand lots of rainwater. When your contractor ruins the installation or fails to secure the valley flashing, the entire roof can buckle and cause damage.

Failure to utilize sealant and adhesive material can also cause water infiltration.


13) Incorrect Shingle Overhang

The correct measurement for shingle overhang (at the eaves) is 7-10mm. Any size over 11mm may result in severe roof wind damage during inclement weather.

On the flip side, anything under 6mm invites water penetration of the roof deck, which ultimately causes severe leaks.


14) Incorrect Shingle Exposure

Shortened shingle exposure causes moisture build-up and may result in blow-offs during severe windstorms. In contrast, too much length between shingles puts your entire roofing structure at risk of water damage.


15) Misaligned Shingles

Misaligned shingles are one of the easiest roofing mistakes to identify for non-professionals. With a simple once-over, you can notice when shingles are not on the same horizontal plane.

Of course, misalignment makes your roof look unprofessional, but it can also create vulnerabilities and lead to water damage.


16) Failure to Address Ice Dams

When melted snow freezes at low temperatures, ice dams can quickly form beneath roof shingles. As the weight increases, your eaves start to suffer.

A proper installation ultimately accounts for future ice dams by including a barrier covering your roof’s edge.

Some cities require this based on building codes. However, some roofers simply neglect this step.


17) Neglecting a Roof Permit

If your hot-shot roofing contractor fails to secure a permit, it can spell disaster for everyone involved. Most areas mandate roof installation permits; however, some contractors ignore the requirements.

If the roofer gets busted for working without a permit, the entire roofing job may get suspended. 

The easiest way to avoid this is to use a licensed and bonded contractor with many favorable reviews.


18) Improper Attic Ventilation

Attics are part of the roofing system, whether you realize it or not. However, if your contractor does not realize it, you can be in for a never-ending nightmare.

In addition, inadequate attic ventilation can damage your roof during heat waves. 

Ultimately, this leads to increased energy costs and roof decking failure. As a result, your roofing contractor should ensure your attic is equipped to support your roofing structure.


19) Mixed Slate Colors

Slate roofs require uniform colors to maximize curb appeal. Unfortunately, contractors’ use of multiple suppliers may result in a porous-looking slate roof.

In rare cases, mismatched colors can come from the same supplier and even the same batch. 

Still, a reputable contractor won’t install anything until it’s perfect.


20) Failure to Remove Old Shingles

When asking the question, can you install new shingles over existing ones? The answer should be no. Any reputable roofer will remove the old shingles before installing the new ones.

Making the mistake of installing new shingles over old ones results in punctures that invite moisture.

Ultimately, making this error results in roof deterioration and the massive repair expenses that manifest as a result.


Built-Up Roofing (BUR Definition + Installation Process)


What is Built-Up Roofing?


Modern built-up roofing systems are made of layers of asphalt with alternating layers of felt going in between.

Logo

Key Takeaway

Built-up roofing systems are also commonly topped with a layer of aggregate, such as stone or gravel, for a final layer of protection. The alternating layers of asphalt (also called bitumen) and felt are applied directly to the roof deck insulation.

Built-up roofing provides a continuous membrane over a roof’s entire expanse, making it exceptionally waterproof. As such, it is almost exclusively seen on low slope or flat roofing systems where water drainage would otherwise be an issue. 

Today, built-up roofing is one of the most viable options for modern low-slope and flat roofing systems. The following post will discuss built-up roofing systems, including their pros, cons, and standard installation methods. 



Built-Up Roofing Definition

Built-up roofing is more or less what it sounds like a roofing system that utilizes multiple material layers to protect the roof decking. However, there are even different kinds of built-up roofing.

It’s important to understand that built-up roofing systems are a viable option for most low-slope and flat roofs. 


BUR Roof Systems History

BUR systems have been around for a very long time. In fact, according to some sources, there is evidence that rudimentary built-up roofing systems have been around since the 1800s.

The extensive history is a good thing because, in all that time, the materials, applications, and designs have only gotten more refined. 

Built-up roofing systems have changed over the years. In 2024, there are more options and features than before.

For example, modern built-up roofing systems often incorporate a layer of rigid insulation to improve the energy efficiency of the roofing system and the entire building.

Modern BUR systems typically utilize a rigid insulation layer for increased energy efficiency and reduced energy costs.


Built-up Rooftop

In addition, modern BUR systems have had a wider variety of features since their initial emergence.


Components of A Built-Up Roof

The essential elements of built-up roofing have remained the same in recent history.

While modern innovations and new materials have been introduced, your basic built-up roofing system will consist of felt layers, asphalt layers, and surfacing material. 


  • Asphalt Layers: The asphalt layers we have already described are similar to the material used to make asphalt shingles. 
  • Felt Layers: The felt layers are usually composed of a fabric reinforced with fiberglass. They can also be infused with other organic materials. The felt layers bond with the asphalt layers through either a cold or hot bonding process. 
  • Surface Layers: The final layer is made up of surfacing material, typically some gravel or fine stones. The job of the surfacing layer is to make the roof safe to walk on and provide a rigid top layer of protection for the felt and asphalt layers underneath. 


What Are the Different Types of Built-Up Roofing?

While additional layers of insulation can be included in the construction of a built-up roofing system, you will generally have a few different types.


They include:


Hot Built Up Roofing

The term “hot” refers to how the layers are installed. The asphalt layers are heated, so they liquefy and form a bond with the felt layers.

In general, though, hot built-up roofing doesn’t perform as well as cold built-up roofing in extreme weather. The installation is generally more complex and weather-dependent. 


Cold Built Up Roofing

With cold built-up roofing insulation, the asphalt layers are bonded with the felt layers with an adhesive.

As a result, cold built-up roofing is more weather-resistant than hot built-up roofing, and there are no toxic fumes to worry about.

Cold installation can also be done in virtually any weather, provided it’s not raining or snowing. 


Ballasted Roofing

Ballasted built-up roofing is not installed using heat or any adhesive. Instead, the layers of asphalt and felt are kept in place with a top layer of heavy stones.

The top-layer stones can be up to 2 inches in diameter and provide enough weight to keep all the layers in place. 


Pros and Cons of Built-Up Roofing

Like most roofing materials, BUR systems present benefits and downsides, or, more simply put, pros and cons.


Check out the advantages and disadvantages of built-up roofing below:


Benefits of Built-Up Roofing (Pros):

  • Lifespan: A built-up roofing system can last as long as 40 years. That’s on the high end, though. A built-up roofing system’s average lifespan is more like 20-30 years.
  • Low Maintenance: Once your built-up roofing system is installed, it will need very little maintenance. 
  • Fire-Resistant: One of the best things about built-up roofing is that the top aggregate layer makes it very resistant to fire. 
  • Energy-Efficiency: Some built-up roofing systems can be outfitted with a reflective top layer that bounces UV rays off your building, keeping your building cooler in hot weather. 
  • Weather Protection: Since there are no breaks in the layers of a built-up roofing system, it provides excellent leak protection. 
  • Impact Resistant: The aggregate top layer of built-up roofing systems is very rugged and will not puncture easily. 


Downsides of Built-Up Roofing (Cons):

  • Lengthy Installation: Because of the multiple layers that need to be applied, built-up roofing installation can take a long time. 
  • Fumes from Hot Installation: If you opt for hot built-up roofing, you may be exposing your building to toxic fumes.
  • Ponding Water: Ponding water can build up on any flat roofing system, including built-up roofing. The roof can begin to sag if nothing is done about the ponding water. Sagging can lead to depression in that roof section, making it more likely that ponding will become an ongoing issue. 
  • Cost: Compared to other kinds of flat and low slope roofing systems, built-up roofing installation can be expensive. 


Fundamental Built-Up Roofing Repairs

Suppose your BUR system fails at some point in its expected lifespan. In that case, there are repair options that may extend its longevity.


Check out some primary repair options for your built-up roof system:


Spray Foam Roof Coating

Spray foam roof coatings minimize tear-offs while helping to maintain a seamless membrane. In addition, SPF coatings include closed-cell insulation while increasing R-Value by nearly 7 per thickness inch. As a bonus, SPF-sprayed roofs become sustainable post-warranty.


Silicone Roof Coating

Smooth built-up roof systems may benefit from a silicone coating. The primary appeal of silicone coatings is their low cost compared to other repair or replacement options.

A silicone coating ranges between $2-$4 per square foot, which essentially cuts your expenses by more than half.

However, you shouldn’t apply a silicone coating to a gravel BUR.


Built-Up Roofing Lifespan

A BUR roofing system typically lasts between 20-30 years though it may last up to 40 years with proper maintenance.

Like every roofing system, longevity depends on variables like installation quality, climate, UV exposure, and maintenance regularity.


Bult-Up Roofing Challenges

Built-up roofs are challenging because of cracks, blisters, and ridges that emerge after exposure to the elements. In addition, unresolved gaps can split inside the membrane, a phenomenon known as alligatoring. 

Moisture infiltration can create blisters that become easily viewable on your roof system. Left untreated, these blisters can spread into other parts of the membrane. 

Similarly, thermal expansion can cause ridges and separated insulation. Replacing damaged insulation is critical in this instance.


Protecting Your BUR Membrane System

Regular inspections are the easiest way to protect your BUR roof membrane. Once roofers identify a small problem, you should address it ASAP rather than allowing the situation to linger and cause more extensive damage.

In addition, BUR systems should have reapplied UV protective layers every five years to maintain protection from damaging sunlight.

However, an inspector should examine the seals and flashing before reapplication to ensure proper fitting. If cracks emerge, you’ll want to reseal them before applying the new UV protection layer. 

Similarly, damaged flashing must be replaced before reapplication.


TPO Vs. PVC Roofing: The (Ultimate) 2024 Comparison


TPO vs PVC Roofing (Blog Cover)


The roofing industry has an age-old discussion about TPO vs. PVC roofing. Commercial roofing projects are usually expensive and involved. They are typically larger-scale than residential roofing jobs, and the choices for contractors and property owners differ. 

A commercial building often needs a low slope or flat roof. So you can’t simply slap some shingles and call it a day. Low-pitch and flat roofing systems are unique and require different considerations. 

The most popular low slope and flat roofing system materials are TPO (thermoplastic polyolefin) and PVC (polyvinyl chloride).

Both of these types of roofing materials are classified as thermoplastic materials. As such, they have some similarities in terms of performance and installation. 

For instance, they are both single-ply roofing membranes, providing good waterproofing as single, continuous membranes with little to no seams. However, there are things you have to know about both materials.


In the following post, Roofer’s Guild compares TPO vs. PVC roofing to make the best choice for your property. 


TPO Roofing Explained

TPO roofing membranes are ethylene or polyethylene materials bound to ethylene-propylene rubber to create a TPO roofing membrane. 

Manufacturers originally developed TPO as a higher-quality alternative to PVC. However, the line between the two roofing systems has become blurred these days.

Many often mistake one for the other as both are thermoplastic roofing materials and offer some of the same advantages. 


PVC Roofing Explained

PVC roofing material is the product of polymerizing vinyl chloride monomers, followed by adding plasticizers to the monomers. The creation forms a durable and flexible roofing membrane that is chemical-resistant. 

You will find PVC roofing systems on many commercial roofs throughout the United States. They are ideal for flat roofing systems where drainage would otherwise be an issue. 


The Qualities of TPO Roofing

So why would anyone choose a TPO roofing system? There are actually lots of reasons.


Here are just a few of the most important:


  • Eco-Friendly: Once a TPO roofing system has run the course of its life, it can be recycled. According to recycling authorities, about 11 million tons of roofing material waste are generated annually in the United States. Roofing waste is one of the most problematic forms of landfill waste. TPO roofing materials can be fully recycled, making them friendlier for the environment.
  • Energy Efficient: The outer layer of TPO roofing membranes can be light in color and highly reflective. The reflectivity helps reflect UV rays off your roof so that the building doesn’t heat up so much. In most cases, this will mean less air conditioner usage. Therefore, TPO roofing systems can help increase the energy efficiency of your commercial building.
  • Puncture Protection: TPO roofing membranes are known to be puncture-resistant. Their resistance makes them a suitable choice if your commercial building is in a windy area or has a lot of tree coverage. 


While these are all great benefits of TPO roofing, you should understand that TPO roofing is not as chemical-resistant as PVC roofing. However, chemical resistance may not be an issue if your business has nothing to do with handling or manufacturing chemicals and chemical byproducts. 

However, businesses like restaurants may not want to invest in a TPO roof as they don’t offer as much protection as PVC regarding substances like grease, oil, and smoke. You can also review some of the other common TPO roofing problems before making your final choice.


Roofer Fitting TPO On Roof

TPO roofing offers several benefits but also features a few downsides, like its lack of chemical resistance


The Qualities of PVC Roofing

PVC roofing has been a stalwart in the roofing industry for over four decades.


It is a prevalent material for commercial roofs, and here are some of the reasons for its popularity:


  • Flexibility: Compared to TPO roofing, PVC roofing membranes are more flexible. The added plasticizers increase the roof system’s flexibility. The flexibility makes it easier to install and more viable for complicated roofing systems with multiple breaks in the roof line. 
  • Chemical Resistance: PVC roofing is also more chemical-resistant than TPO roofing. So it may be a better choice for industrial applications or for any commercial building exposed to harsh chemicals and chemical byproducts. 
  • Weather Resistance: Because PVC roofing membranes are applied as a single, continuous piece, they offer excellent protection against the weather – in particular, water leaks.


Keep in mind that PVC is generally more expensive than TPO. Also, some PVC roofing materials use plasticizers. While plasticizers make the membrane more flexible, they may also make the material less durable.

Plasticizers break down quicker than the rest of the materials. In addition, they may lead to quicker degradation, primarily when used in areas with extreme heat and UV exposure. 

Consider that TPO and PVC roofing have similar lifespans. With TPO, you can expect the roof to last up to 30 years, but a more realistic expectation is more like 23 years. On the other hand, a PVC roof can last as long as 30 years with proper maintenance. 

Aside from PVC roofing, you can also check out a comparison between TPO vs. Modified Bitumen roofing.


Plasticerez makes PVC roofing flexible but may also contribute to its relatively fast degradation when compared to a material like TPO


Other Considerations When Choosing TPO vs. PVC

Understanding the fundamental differences between TPO and PVC roofing is essential, but other considerations may also arise. For example, industry regulations, warranties, and installation quality significantly influence the ultimate performance of your TPO or PVC roofing system.


Industry Regulations

First introduced to the US market in the early 90s, TPO is the newer and less-regulated material. In contrast, the more established PVC material has stricter regulations. Unfortunately, the more lenient regulations may result in inferior quality.


Warranties

No matter which material you are leaning towards, it’s essential to try to choose a manufacturer that offers the longest-lasting warranty. Keep in mind that a manufacturer warranty will not cover the installation. However, it will protect the material’s longevity for a specific time. 


Installation

As with any roofing material, the longevity of your roof depends significantly on its installation. Therefore, only licensed and insured contractors should install TPO and PVC roofing. For best results, you should work with a contractor with considerable experience with single-ply membrane roof installation.

You should always get estimates from multiple roofing contractors and ask each for numerous references. You may also want to opt for a contractor that can give you a comprehensive labor warranty. 


How to Tarp A Flat Roof (w/Waterproof Tips) for 2024


How To Tarp a Flat Roof (Blog Cover)

Learning how to tarp a flat roof is essential for preventing water damage.

After all, protecting your roof from the elements means protecting your entire property. Flat roofing materials are reliable, but they’re not invulnerable.

If you want maximum protection for your roof and property, you should consider tarping your roof. 


Logo

Key Takeaway

Tarping a flat roof involves the following steps:

  1. Measuring
  2. Cutting the Tarp
  3. Laying the Tarp Down
  4. Securing the Strips
  5. Plastic Sheeting and Insulation

A tarp will add an extra layer of protection to your flat roofing system. If you live in an area with a lot of rain or snow, tarping could be especially advantageous. Flat roofing materials typically provide adequate protection for your roof but have an inherent weakness: they’re flat. 

Flat roofs can’t drain off water like pitched roofs, which is why tarping is a good idea. But how do you tarp a flat roof? It isn’t as simple as laying a big piece of vinyl down on the roof. Instead, there are steps you should follow if you want the tarp to be effective. 



In the following post, Roofer’s Guild details a guide on how to properly tarp your flat roof.


Step 1: Measuring

The first thing you have to do is procure the tarp. But how much tarp will you need? That depends on the area of your roof. You must take careful measurements to ensure you don’t buy too much or too little tarp for your roof. For this, we recommend using a good old-fashioned tape measure. 

Measure the span of your roof and account for any alcoves, nooks, and crannies. Next, measure the length and width of the entire roof so you know precisely how much tarp you need. 

You can also use Google Earth to measure your roof. Google’s roof measurement is a relatively new feature, but it will give you a general idea of the measurements of your roof. 


Step 2: Cutting the Tarp

Once you have procured the correct amount of tarp, you will need to cut it into more manageable strips once you are up on the roof. Again, you can use a simple pair of scissors or maybe a utility knife to do the cutting. 

You’ll want to cut the tarp into strips about 2 inches longer than the width of your roof. 


Step 3: Laying the Tarp Down

Once your tarp strips are cut up, you will need to lay them down lattice-style over your roof. Again, laying the strips with the shiny side facing down would be best for the utmost protection. 


Step 4: Securing the Strips

With your tarp strips laid down in a lattice pattern, you will need to secure them. We recommend using a staple gun to secure the strips to the upper layer of your flat roofing system. It would help if you started at the corner of the first strip (the one in any far corner of your roof) and then worked your way inward. 

For the best protection against wind, you should staple the opposite side of the strip at a diagonal angle. The angle will create an “X” shape and provide better protection against strong winds.


Step 5: Plastic Sheeting and Insulation

This last step is optional. However, if you want the most protection for your flat roof, we recommend covering the entire tarp layer with thick plastic sheets and securing them with either staples or roofing nails. 

Then, you will need to insulate the roofing system. For this, we recommend a material with an R-value of at least 5. A 5 R-value ensures your roof retains heat and releases it as needed. Spray foam insulation works best with flat roofing systems and is easier to install. 


What Kind of Roof Tarp Should You Choose?

You should be aware that tarp doesn’t come in just one type of material. When people think of tarp, they usually conjure up images of sheets of blue vinyl. But in 2024, there are more options; you should know about each before selecting one for your flat roof.


So let’s take a look at the different materials of tarp:


Plastic

Plastic tarps are relatively affordable. They come in various colors and thicknesses but generally won’t last as long as other types of tarp.

Plastic is an excellent temporary option if you need to cover up your roof during repairs. We don’t recommend it for permanent roof coverage – the material won’t last as long under substantial UV exposure. 

Vinyl

Vinyl is a very durable tarp material. You can use it in pretty much any climate. It will also provide minimum insulation for your roof.

However, a vinyl tarp will be more expensive than plastic and canvas tarps. Another downside to this type of tarp is that it may not be suitable for large flat roofs. It is not as flexible as a plastic tarp, so you will need to buy more of it to cover your entire roof. 

Canvas

Canvas tarps are made from thick layers of cloth. Since they are made of mostly organic material, they can provide better insulation than plastic and vinyl tarps.

Canvas tarps won’t be as expensive as vinyl tarps, but they will also not last as long. Also, you can’t use a canvas tarp in an area with a lot of rain. Canvas tarps aren’t waterproof and will only be a viable option if you’re in a dry climate. 


Things to Remember When Tarping A Roof

If you are wondering how to tarp a flat roof, then there are some things that you have to keep in mind:


Tarping isn’t A Permanent Solution

If you choose a vinyl tarp, you can expect it to hold up for a few years. But tarping isn’t a permanent roofing solution. 


The Thicker, the Better

You will generally want a thick tarp material to protect your roof better. A thick tarp material will work best if you are covering up some recent repairs or just adding an extra layer of protection to your flat roof.


Nails Vs. Staples

Roofing nails work best since they hold up better in strong winds than staples. However, they are not as easy to install. They are also significantly more expensive. If you don’t have legit roofing experience, you may want to stick with a staple gun.

But in any case, if you have any doubts about how to lay a tarp on your flat roof, you should call an experienced roofing contractor.


Final Thoughts

Tarping a roof is essential to water damage prevention. Following the steps of measuring, cutting, laying, securing, and sheeting is a good process to ensure proper tarping. However, only licensed roofing contractors with experience and expertise are equipped to safely perform the job without risk.


5 Causes of Roof Leaks in (Heavy + Hard) Rain (w/Solutions)


Roof Leaks in Heavy Rain (Blog Cover)


Several factors can cause roof leaks in heavy rain. Every region in the United States is vulnerable to rainstorms, with some being more frequent and severe than others. However, unlike snow and hail, there’s no escaping heavy rain as a property owner. 

While it may be tempting to chalk leaks caused by rain to inevitable severe weather, it is important to address roof leaks in hard rain as soon as possible. 


Below are five causes of roof leaks in heavy rain:


1) Compromised Flashing

The role of flashing in any roofing system is to seal up the seams where the roofing material meets things like vents, skylights, and chimneys.

It is usually made of thin metal and secured with special nails. If your roof’s flashing gets old, rusted, corroded, or improperly installed, you will likely experience a leak. 

The good news is that flashing can be easily replaced – for the most part. However, if the water damage is extensive, it will require significant repairs.

Check your flashing for rust, cracks, or any kinds of breaks. Also, make sure the roof line is adequately secured. If you see any compromised flashing on your roof, schedule a replacement ASAP.


Corroded flashing is a sign of an impending roof leak, especially during or after rain.


2) Ice Dams

If you live in an area with a lot of snow or hail, you may experience ice dams on your roof. Ice dams can easily cause a leak on even new roofs.

An ice dam forms when the weather outside is cold. Ice or snow may build up on an area of your roof and then melt when it gets warmer.

After liquifying, the ice moves down your roof to a cooler area and freezes again. This process is very hard on your roofing materials and can easily cause a leak. 

One of the most common causes of ice dams is poor attic and roof ventilation. In reality, there should be no warm spots on your roof. The roof should more or less stay at a uniform temperature. 

Check the ventilation in your attic. If it feels excessively stuffy or muggy in the attic, the ventilation may need to be improved. You should also check out the insulation between the stud bays if your attic is unfinished. 

It’s crucial to replace any insulation ripped, torn, or otherwise damaged. Installing an attic fan is also very helpful for moving warm air out of your attic and away from the roof. 


3) Improper Solar Panel Installation

Solar panels are a great idea to save money on your electricity bills and reduce your carbon footprint. However, they open the door to many roofing problems – leaks being one example. Installers must secure a solar array with mounts that require several screws. 

Each of these screws can cause a potential leak if improperly secured. If you have solar panels installed on your roof, it’s essential to have it checked out at least once a year.

Also, be sure to work with a reputable and experienced roofing contractor when installing your solar panels. 

The contractor should have specific experience installing solar panels on your style of roofing system. They should also be able to provide you with references.


4) Plumbing Issues

Plumbing issues are prevalent with commercial roofing systems with pipes running through or near the roof. Contractors must adequately seal the entrance when you have plumbing running through your roof. Improper sealing or lack of sealing will almost certainly cause leaks.

Even properly sealed holes will wear eventually. Over time, the sealant dries and cracks, leading to more potential leaks. Furthermore, unforeseen plumbing issues, such as pipe breaks, can spring a leak and cause damage.


5) Pooling Water

Pooling water is more common in commercial roofs – flat roofing systems, especially. As a result, heavy rainstorms can overflow ponded water and distribute it to various parts of the roofing system.

Since some parts of your roof lack sealing and flashing, the water infiltrates for new leaks.

Contractors should regularly check flat roofs for ponding water regardless of weather patterns. In addition, property owners must attend to any excess water before the rainstorm occurs.

Aside from preventing leaks, treating water damage early is critical to limiting lifetime roof expenses.


Solutions to Roof Leaks Caused by Rainstorms

Leaks caused by hard rain generally require professional assistance from a licensed roofing contractor. Most property owners should not attempt to get on their roofs or diagnose leaks.

Instead, property owners can try a few things from inside their building or home after rain-caused leaks.


  • Caulking: If the leak spot is dry, you can use putty or caulking to seal it temporarily
  • Buckets: Catch the leaking water with a buck from the inside of the property until a professional roofer can fix the problem
  • Sealing: Try sealing the leak from the interior if it’s coming from an attic or crawl space


In Conclusion

Roof leaks caused by heavy rain may severely impact your roofing system. Call a professional roofing contractor to address the issue as soon as possible.

Furthermore, you should take preventive steps before it rains to reduce your vulnerabilities. For example, flat roof owners should eliminate ponding water before it rains to prevent infiltration.


How to Find A Leak in A Metal Roof (w/Causes, Solutions, Etc.)

How To Find a Leak in a Metal Roof (Blog Cover)

Understanding how to find a leak in a metal roof is an important skill. Unfortunately, there is no such thing as an invulnerable roof. Metal is a durable and reliable roofing material that can succumb to rain, snow, and moisture damage. 

It would be wise to have your metal roof checked out annually. You should also keep an eye out yourself for tell-tale signs of roof damage. 

You should first know that it pays to be vigilant. A small leak right now might be easy and affordable to fix, but if you leave it alone too long, it could cost you thousands of dollars down the line. 

While metal roofs are known to last for decades, you still have to keep up with maintenance. So don’t fall into the trap of thinking that your metal roof will never spring a leak. Instead, read on as we tell you how to find a leak in a metal roof so you can prevent a significant roofing catastrophe.

Where Do Metal Leaks Originate?

The first step toward finding a metal roof leak is knowing where to look. Let’s take a moment to review some of the potentially problematic areas of your metal roof:

Knowing where to look can help you identify the origin of your metal roof leaks and swiftly address the problem.

The Valleys

The valleys of your metal roof are where panels meet and seams are created. It is likely to see corrosion or wear in these vulnerable spots, so this is the first place you’ll want to look. Keep an eye out for tears in the paneling, the seams, or if there is any corrosion. 

While the damage may not look significant, it could soon develop into a leak if it’s in vulnerable spots like the valleys of your roof.

Roofing Nails

You will generally deal with aluminum nails if you have a metal roof. However, if you live in a coastal area or the nails are exposed to chemicals, they can be a liability. So you should pay close attention to the nails and screws used to hold down your metal roofing. 

Look for signs of rust and discoloration. You should also keep an eye out for loose screws and nails. It can become a major issue when metal roof screws are leaking. You may be able to seal up the holes to protect the roof from water damage. 

Breaks in the Roof Line

A break in the roof line refers to any protrusion from the shingles or paneling, including chimneys, vents, skylights, HVAC installations, etc. Anything installed on the roof that isn’t actual roofing material is a break.

Check around the base of these protrusions where they meet the actual roof material. Make sure that the flashing is intact and that there is no sign of deterioration. If the flashing has become rusted, broken, or otherwise compromised, it should be replaced as soon as possible.

Any breaks in the roof line due to these protrusions will likely cause a leak. 

The Attic

Your attic plays an essential role in your roofing system. When adequately vented, it prevents the risk of ice dams and moisture damage from inside the structure. However, when improperly ventilated, it could cause moisture damage. So check your attic regularly.

Also, check to ensure that the insulation is in good condition and that none is missing. Look for streaks on the insulation bays and studs. Any discoloration in the wood could be a sign of a leak. If it feels overly humid or stuffy in your attic, you should look into improving ventilation. An attic fan may also be able to help. 

Signs of Metal Roof Leaks

Along with knowing where to look for leaks in your metal roofing system, you should also know the signals that indicate you already have a leak. Some of the most common signs of metal roof leaks include:

https://www.youtube.com/watch?v=T9IefLMNZnU

Discoloration on the Walls or Ceiling

You can start by checking out your interior spaces. If you see streaky discolorations on your walls, ceiling, or even your floorboards, it could indicate that your roof is leaking. While these may also be signs of a plumbing leak, it would be wise to have your roof checked out to be sure.

Loose Fasteners

If you see that your roof fasteners have been displaced, raised, or become loose, the problem could be water damage. Water damage will cause the underlayment to become warped and deformed, leading to fastener issues.

Roof Sagging

If your metal roof allows water to seep through the decking, it could cause your ceilings to start sagging. Take a look at the ceilings under your attic or roof. You could be dealing with a roof leak if you notice that they look bulging, misshaped, or sagging.

Rust Stains

While most metal roofing panels and shingles can be treated with an anti-corrosion finish or paint, there is only so much these protective layers can do. In addition, if there is a structural leak, you will still likely see rust stains on the roof itself. 

These may look like streaky stains that run down your roof toward the gutters. If you are seeing rust on your metal roof, you must have it checked out by a professional as soon as possible. 

Metal Roofing Leak Tips

If you are ever in doubt, it’s always best to call a professional. Unfortunately, quick fixes rarely prevent severe damage from occurring, even if it delays the inevitable. However, some essential tips you can follow will help shore up your metal roof. 

Use Magic Tape

For instance, if you are dealing with corrosion in the valleys or the flashing of your roof, you may be able to use self-vulcanizing tape (sometimes referred to as self-amalgamating or magic tape) to seal up the damage. 

Of course, this shouldn’t be viewed as a permanent fix, and it will only be a viable option if the corrosion or damage is minimal. So even after applying the tape, you should check your roof. 

Apply Caulk

If it seems that there might be leak potential around the venting of your roof, you may be able to shore up the defenses by applying caulk to the perimeter. However, remember that you want to seal the seams where the vent meets your roof line. 

Use a Drill

If you are dealing with raised nails or roofing screws, you may be able to screw them back into place with a drill. You can also look into replacing the insulation in the attic.

Major Roofing Manufacturers (Best Updated List for 2025)


Whether your roof requires full replacement or minor repairs, it’s essential to know about the major roofing manufacturers so you can order the best materials. As a result, you should scrutinize prospective contractors, consider all your options, and know the best roofing manufacturers. 

We’re talking about the oldest and most reputable companies. We’re talking about manufacturers who make the best roofing materials and offer the best warranties. So whether you are a homeowner or a roofing contractor, it pays to work with materials from the best major roofing manufacturers. 


Roofer’s Guild outlines some of the major roofing manufacturers in 2025:


Major Roofing Manufacturers (Blog Cover)


Asphalt Shingles Manufacturers


Asphalt shingle roofs are the most common type of roof in the United States. An estimated 75% of American homes have asphalt shingle roofs.

Up Close Asphalt Shingles


With so many consumers in demand of this resilient and affordable roofing material, it can help to know who produces the best asphalt shingles:


Owens Corning

Owens Corning is one of the most distinguished roofing materials manufacturers, period. Their products are used worldwide and have won awards for their production quality.

One of the things that makes them a top choice for asphalt roofing is variety. Whether you have a limited or flexible budget, Owens Corning products can fit it. 


Malarkey

Malarkey may not be the household name it used to be, but we would be remiss if we did not mention them.

The company is known for innovation – being the first to produce a shingle that met the Miami-Dade County building code requirement for 110 mph winds. Even today, you can expect integrity in their asphalt shingle production. 


GAF

GAF products are outstanding in high-wind areas. For example, their Timberline HDZ asphalt shingles feature extra-wide nailing zones that are incredibly wind-resistant.

They are also one of the country’s oldest manufacturers of asphalt shingles and offer a wide variety of products, including 3-tab and architectural asphalt shingles. 


IKO

If you are in California and looking to save money while accenting your roof, you may want to look into IKO asphalt shingles. One of their most popular product lines is the Cambridge Cool Colors series of asphalt shingles. 

The Cambridge Cool Colors line includes shingles in a wide array of colors. This line also complies with the California Energy Commission’s regulations for energy conservation and green design (Title 24).


Metal Roofing Materials Manufacturers


Some types of metal roofing systems can last you 50 years or more. Metal roofs have come a long way in terms of aesthetic appeal and durability.

Metal Roof Restoration


Some manufacturers to keep an eye out for include:


ATAS International

ATAS International is known for giving contractors what they need. They produce a wide array of metal roofing materials, including standing seam, batten seam, curve, tapered, through-fastened panel, and even metal roofing shingles.

ATAS International is an award-winning manufacturer that was established way back in 1963.


Englert

Englert is the manufacturer to turn to if you are looking for eco-friendly roofing solutions. The company is known for its vast selection of EnergyStar-certified metal roofing materials and regulation-compliant finishing products. 

Not only are their metal roofing materials made to last a long time, but they can also save your customers money on utilities. They are also a great manufacturer if you require high-quality finishes and paints for your metal panels. 


Certainteed

Certainteed may be better known for its asphalt shingles. Still, every consumer and roofing contractor should also know that they make gorgeous metal roofing materials. 

They make various metal roofing materials that mimic the aesthetic appeal of other roofing materials. So whether you want metal roofing that looks like slate, wood shake, or even natural clay tiles, Certainteed will have something for you. 


Slate Roof Manufacturers


Slate roofs are an outstanding option for homeowners because of their unmatched longevity.

In addition, slate roofing materials are the most stress-free option when considering the lack of required maintenance. Add its thaw resistance and fire retardancy, and you have a great roof.


Slate Roofing Against Blue Sky


Some slate manufacturers to consider include:


New England Slate

Vermont’s own New England Slate exceeds ASTM’s highest rating (S1) with a 75+ year warranty. Having been around since the 1970s, New England Slate Company is among the best manufacturers in the U.S.

As for its aesthetic choices, you can choose from black, gray, green, and purple slates. In addition, you can customize shape, size, and thickness to craft the ideal roof for your property.


Buckingham Slate

Buckingham Slate manufactures elite-quality slate material in Virginia, which can last for up to 150 years. You get an excellent material by combining its longevity with minimal absorption rates and acidic resistance.


Glendyne

Glendyne produces a dark grey slate with a blue shade free of metal intrusions like pyrite. Its lack of metal intrusion prevents rusting, which allows the material to maintain its aesthetic appeal long-term.


Penn Big Bed

Another slate manufacturer, Penn Big Bed, offers various sizes, thicknesses, and shapes. Their slate lifespan often exceeds 150 years. With headquarters in Slatitingon, PA, PBBS has been around since the 1930s.


Wood Shake Shingles Manufacturers


Wood shake shingles come in all types, sizes, and thicknesses. Some types of wood they are made from include teak, wallaba, and cedar. Teal has the longest lifespan: 50 to 80 years.

Up Close Image of Wood Shake


Here are some of the best manufacturers of wood shake shingles:


Watkins Sawmills

Watkins Sawmills is based in British Columbia, Canada. They are one of the oldest and most reputable producers of wood shake shingles in the Americas.

In addition, they are one of the best manufacturers to work with because of the broad array of shingles they can provide, including certified and uncertified products.


Waldun

Waldun is another manufacturer based in British Columbia, Canada. They operate one of the country’s largest mills and produce a variety of wood shake shingles.

So whether you require premium, number one, or standard-grade wood shake shingles, Waldun will be able to supply you.


Imperial Shake Co.

Imperial Shake Company is relatively new on the scene, having been founded in 1998. However, they have direct access to raw materials, making them one of the best manufacturers of wood shake shingles. 

The access allows them to have more acute control over the quality of their product, which is one of the reasons their brand has become synonymous with consistency in the roofing industry. They are best known for their red cedar shakes that come in 18″ and 24″ lengths.


Flat Roofing Manufacturers


Flat roofs need alternative treatments, including a waterproof membrane like EPDM, PVC, or TPO.

Two Men Perform Flat Roof Maintenance


Below, Roofer’s Guild evaluates some of the best membrane roofing manufacturers.


Some membrane roof manufacturers to research include:


IB Roof Systems

IB Roof Systems has produced PVC membranes since 1978, including those designed for flat roofs. The 50 MIL PVC membrane has unmatched durability, pliability, and strength, with a seam strength of 247% above ATSM standards.

The lifetime material warranty makes them an excellent choice in the low-sloped residential roofing space as well. The IB white PVC membrane is an excellent option if you’re looking for an Energy-star qualified material.


Carlisle Construction Materials LLC

Carlisle Construction Materials LLC is a premium manufacturer of single-ply roof solutions, including PVC, EPDM, and TPO.

CCM has been around for over a century and is considered one of the most respected and innovative manufacturers in the flat roof industry. In addition, they also offer roof garden systems.


WeatherBond

WeatherBond is the #1 supplier for single-ply roof systems like PVC, TPO, and EPDM. The first emerged in 2006 as a Carlisle Construction Materials, LLC subsidiary. If you seek an extended warranty with this manufacturer, you must belong to the WeatherBrond Recognized Contractors program.

Working with the best major roofing manufacturers is a no-brainer.