Category Archives: Commercial Roofing

Dec '19

Roofing Tar vs. Silicone (Analysis & Comparison)

Roofing tar vs. Silicone. Which is superior? While most roofers and property owners are looking for a simple answer to this question, it requires a broader understanding of the specific roofing project that requires such materials.

In most cases, Silicone is a superior roof sealant to tar, though the difference is not as apparent as some might imagine.

Key Takeaway

Silicone is the superior roof sealant, but tar is nearly as effective. While you can’t go wrong with either solution, Silicone presents better aesthetic appeal and greater stain resistance.

Perhaps you are in the process of having your roof repaired or replaced. If so, you might have a few questions. One of these is, “What is the best roof sealant for leaks?”

It is important to have the right type of material since there are several different materials to choose from, such as slate, asphalt, Silicone, aluminum, clay tiles, and more.

Generally speaking, it comes down to tar asphalt or Silicone. These materials have distinct advantages, but knowing which is best for you takes a little research and a much more thorough look.

Below, Roofer’s Guild compares the two roofing materials closely.

Installation Process

Installing either roofing material can be relatively straightforward. You can install tar using a roller, but you have to ensure that the temperature is in the right range for it to stick to the roof effectively.

The last thing you want is for the tar to not adhere correctly, which could cause issues with peeling and potential water damage later on.

Ensure the temperature is correct, and the tar will stick to the roof easily.

The only downside to installing a tar roof is the fumes. When the sun hits the mixture, toxic fumes form that can leave you feeling dizzy and cause respiratory issues.

Always wear a mask when installing a tar roof to protect against the side effects. No one wants to get dizzy and fall off the roof while installing it.

The process is a little more time-consuming with silicone shingles but generally easy. There are no adverse side effects regarding fumes, making it a safer option for installation.

Ideally, you should have a roofing professional come out to repair or install your roof.

It can be dangerous to take on the job if you are not experienced, as those without experience often forego or forget the necessary safety procedures that should be taken during the process.

Tar roofing has the overall installation advantage simply because it can be rolled out relatively easily. Yes, toxic fumes are involved, but as long as you wear a mask, you should be okay during the process.

Solar Energy

Silicone shingles reflect UV rays away from your home or business, helping keep the structure cooler without increasing the energy you use through air conditioning or other cooling devices.

Until you see a sky-high utility bill, you won’t understand just how much money that can save you.

Tar, meanwhile, has similar properties. It protects the structure from harmful UV rays and helps keep the building cooler even when the temperature is hot.

This is crucial during the hotter summer months when energy bills can soar.

One of the most important aspects of a roof is appropriately handling UV rays. If it isn’t doing its job, your home could turn into an oven during the hotter months, resulting in excessive air conditioning usage and higher home energy costs.

Both deal with the same problem in very similar ways—keeping those UV rays at bay and reflecting solar energy to keep the building cooler—so either works fine for this specific concern.

Eco-Friendliness

When it comes to roofing tar, they are very effective at keeping your home or business cooler during those warmer months, up to twice as much as most traditional energy-star certified roofing materials.

The cooling means you can save substantially on your energy bills and see benefits from green organizations like NAHB, LEED, or others.

The one drawback here is that the fumes can be pretty dangerous, but the environmental effects aren’t as harmful.

If you do the installation yourself, be sure to wear a breathing mask to avoid those toxic fumes that could be dangerous to your health.

Silicone is also great for saving money on energy costs while offering protection against staining, dirt, and mildew. This gives it a distinct advantage: it will look newer over time than a tar roof.

The benefits are slight, but the advantage here goes to the silicone option. Both save you from expensive energy bills and are relatively easy to install, but Silicone protects against ugly staining, while tar roofing material has toxic qualities during installation.

Any time you can save yourself by working on your roof, cleaning, or making repairs, that is a victory for you and one you should take.

Aesthetic Appeal

With roofing tar, you are oftentimes limited to black or white. Some companies specialize in offering a variety of different colors, but don’t be surprised if the majority of roofing companies in your area stick with tradition.

Still, if you can find the color that best suits your design scheme, it can match perfectly. Tar provides a smooth, seamless aesthetic without grooves or breaks.

Silicone roofing materials routinely come in various colors and designs, allowing you to be as specific as you want about the color of your roof.

Also, as previously mentioned, Silicone is resistant to staining and dirt, which can cause unsightly spots to appear over time, making your roof look dirty and worn down.

Silicone has the advantage here because of its versatility, choice of color, and ability to protect from things that may stain your roof.
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While getting different colors of roofing tar is not impossible, it is not as common as selecting silicone roofing.

Durability & Longevity

Durability and longevity are critical factors because of the cost of replacing or installing a roof. Considering this, long-lasting roofing materials are imperative to avoid excessive spending.

Tar roofs are very durable because they remove the seams and cracks that we generally see in roofs and create a smooth surface.

A smooth surface is incredibly important when it comes to dealing with high winds or keeping snow/water buildup from forming on the roof.

The latter is essential. Most roofs experience some level of damage that can lead to leaks or water damage in other home areas. With a tar roof, you drastically limit the possibility of that happening.

As we all know, water damage is a real wild card that can wreak havoc on your home or business.

Silicone roofing material is also very durable. In addition to being resistant to the damage that sunlight and UV rays can cause, it also protects against rain, snow, and extreme temperature changes.

Weather resistance is a crucial factor, especially considering that most of us live in areas where the weather swings drastically depending on the time of the year.

If you don’t have a roof that can withstand a snowstorm, you could find yourself in a pile of trouble before long.

These two are about even when it comes to durability. Both are meant to stand up to extreme temperatures, high winds, rain, and snow. They protect against water accumulation and help prevent problematic leaks from occurring.

The only real difference here is that many silicone roofs come with a 50-year warranty, which should last you for life.

Having that kind of security and peace of mind can go a long way toward picking the right roofing material for your repair or replacement.

Final Call: Roofing Tar or Silicone?

Despite the slight advantage of silicone, you can’t go wrong with either material because of your individualized needs.

While silicone might have a better overall aesthetic value and be more resistant to staining and mildew, tar roofs are more than suitable for most scenarios.

The same goes for being energy efficient – both are great at cutting down on your overall utility bills – and their overall durability.

If you are having your roof repaired or replaced and don’t know which material might be best, consult a roofing professional.

You will be able to discuss your overall goals for the roofing projects, better understand your local climate, and be informed of any weather conditions that could affect your roof.

Nov '19

There’s a Loud Banging Noise on My Roof: Now What?

Loud banging noises from the roof may startle people inside, disturb sleep or work, and prompt concerns about the roof’s condition or structure.

These are normal reactions to have under these circumstances; it’s what you do after hearing the noise that is most important.

Key Takeaways

The loud banging noise on the roof is typically caused by the expansion and contraction of the materials during winter.

The noise is generally not a cause for alarm. However, investing in a professional roof inspection can diagnose any root cause.

Winter’s Impact on Your Roof’s Banging Noise

Not only does winter bring frigid weather, but it also shortens the window sunlight during the day. This can have a jarring effect on everything from our personal moods to our building’s roofing materials.

As a result, winter is when you might suddenly hear a loud banging noise on your metal roof. The noises can be alarming the first time or two, but they are rarely a cause for panic.

The noises might make you think that there is some kind of lurking intruder or that a tree has fallen on your roof, but they are actually caused by roofing materials being exposed to lower temperatures.

The banging you hear is more likely due to the shrinking of the material than a serious structural issue, though there are always exceptions.

Why Does The Roof Make Noise?

Before you can truly understand what is happening with your roof, the concept of thermal expansion and contraction is something that you should have a handle on.

The materials used to construct your building are all differently affected by the temperature of the environment that they inhabit.

During the winter, when temperatures have declined sharply, these changes can become much more noticeable. Colder temperatures can shrink any exposed materials.

These materials are bound to one another, as well as any interior materials by fasteners (this can include things like nails and screws).

Different materials will contract and expand at different rates; this can mean that all of the materials that encompass your roof are contracting and expanding at different rates as a response to the sudden shifts in temperature. This can cause banging noises and is nothing to necessarily be alarmed about.

Noises Not Necessarily a Cause for Alarm

In most cases, the noises cannot be avoided and are not a cause for alarm. This is particularly true in older regions with large drops in temperature between day and night.

When you put it in perspective, the same expansion and contraction is taking place (albeit in a far quieter fashion) when water pipes are cooled or heated during each use.

The same is true of window and door frames, even in the summer when the temperature cools from daytime to nighttime.

Installation and Maintenance Considerations

Another point that you might not have even considered is that builders are well aware of the effects of thermal expansion and contraction and take that into consideration during construction.

For this reason, they try to choose compatible materials that are adjacent to each other and then tightly secure those connections in order to resist any excessive movement.

Clearing snow off of the roof (especially after a storm that produced several inches or more) alleviates additional weight and reduces the risk of water damage.

Depiction of Roof Expansion and Contraction During Winter

Expansion and contraction of roof materials during winter can cause the “banging” sound on your roof.

Inside Conditions Vs. Outside Conditions

Though your roof’s exterior is constantly exposed to the shifting temperatures of winter, your property’s interior stays generally warmer. These competing temperatures cause the inside heat to constantly move upward toward the cold outer portion of the roof.

As a result, the roof itself shrinks due to the cold, while the rest of the house does not. This contrast can cause a buildup of pressure and distortion.

When that pressure builds up, the joints and other areas where connections are made end up moving slightly; this creates banging noises that might startle you during those cold nights.

Insulation Won’t Make a Difference

While adding more insulation may reduce the banging sounds caused by expansion and contraction, it will not eliminate them entirely. Ultimately, the roof remains exposed to exterior elements like outside temperatures.

For example, adding more attic ventilation may minimize contraction and expansion by reducing the attic’s daytime temperature, but the banging will persist because of the outside elements.

With that said, attic insulation can help muffle the sounds of the metal banging on your roof during winter.

However, taking this measure is more about personal preference than a legitimate structural concern. The roof’s builders were likely aware of the potential of this noise when constructing the roof.

If the banging becomes more frequent or louder in nature, it might be worth calling in a contractor to perform an inspection.

Consulting with a professional is the only way to explicitly determine if the sound is caused by structural damage or any other potentially severe roofing issue.

Final Thoughts on Loud Banging Noises from Roof

In most cases, your metal roof acts as any other material would in the colder months. That constant expansion and contraction of the materials during changing temperatures is nothing more than a cause for annoyance at best.

While the banging noise might be alarming or frustrating, it is often part of having a metal roof in colder regions of the country. Little can be done to alleviate this issue, and it is something that many property owners tolerate during colder months.

So, don’t freak out the next time your roof starts to bang. It’s just doing what nature makes it do.

Nov '19

How Long Do Rubber Roofs Last?

With proper upkeep and weather conditions, your standard rubber commercial roof will last 40 to 50 years.

Of course, this assumes proper and preventative maintenance. No roof will last half a century on its own without preventative maintenance.

While that may sound like a hassle, preventative maintenance entails simple inspections and patchwork that address minor damages before they accumulate.

If your area experiences extreme weather each year, the rubber roof life expectancy decreases by a few years. Still, rubber roofs are generally very durable and meant to last a long time.

How Long Do Rubber Roofers Last (Blog Cover)

Key Takeaway

A typical rubber commercial roof will last between 40 and 50 years with the proper maintenance and mild weather patterns.

Benefits of Rubber Roofs

If you are a contractor or are familiar with the roofing game, you may have heard of EPDM. This is Ethylene Propylene Diene Monomer, more commonly known as rubber roofing.

Most contractors will recommend that commercial property owners invest in these rubber roofs.

Rubber membrane roofs have advanced durability, life expectancy, and cost per square foot, making them one of the best replacement options for any damaged roofing material.

And while it certainly has disadvantages, there are more than enough reasons that EPDM roofs are one of the most common options for commercial properties.

Ease of Installation

Properly installed rubber roofs make your roof seamless. Without seams, your roofing is more moisture-resistant and virtually leak-free.

With other roofs, there is the risk that shingles or individual panels could peel and rise, exposing the roof underneath to the additional risk of leaking.

But with the seamless rubber roof installation, you no longer have to worry about those pesky leaks.

Rubber roofs have the same properties as PVC, TPO, and other roofing materials that are more expensive to install. Again, it all comes down to the quality of the installation.

Subpar or faulty installations eliminate the full range of capabilities that the rubber roof can offer.

Lightweight

Your standard rubber roof weighs just about two pounds per square foot. This makes it lighter than something like modified bitumen, but it remains more durable.

Being lighter in weight also means that it puts less stress on the roof over time. This can do wonders for the health of your commercial roof over the life of the building.

Its lighter weight also means that it is easier to transport and install. Heavier materials are challenging to move up and down ladders or stairs, but rubber material is more user-friendly.

Durability

Rubber roofs are very durable, on a level with PVC and TPO. EPDM is actually durable enough to support things like rooftop gardens as well. Because the material is seamless, it can lock out moisture and prevent the growth of fungi or other roof-harming life forms.

With proper installation and yearly preventative maintenance—inspections to check for any cracks in the façade that could allow moisture to enter—your rubber commercial roof should last at least 40 years.

Professional Rubber Roof Installation

The first course of action for installing a rubber roof should be to call in a commercial roofing contractor.

A contractor or roofer will have a litany of experience when it comes to installing these roofs, and the chance that something goes wrong will drop drastically.

If you insist on doing the work yourself, you must follow certain steps to ensure that the job is done correctly and that your rubber roof is installed properly.

Rubber Roof Installation Steps

Roof Cleaning

The first step is to prepare the roof. This means cleaning it. Any debris or dust that remains could potentially weaken the membrane’s adhesive.

The whole point of the EPDM membrane is that it needs to be able to stick to the roof’s surface.

Gutter Inspection

The next step is to inspect areas of your roof with gutters. In these spaces, you may need to install a batten to extend your roof towards the gutter.

This will direct rainwater drips to the gutter instead of behind it, preventing damage to the supporting wall and fasteners underneath the gutter itself.

Secure Flashing

Make certain that you prepare the areas of your wall that would accept flashing—this redirects moisture from the wall towards the rubber membrane—and remove any excess brick mortar using a mortar chisel.

This will ensure that the flashings attach properly.

Apply Rubber

Lastly, prepare and install the rubber layer. Again, it is key that the rubber membrane bonds with the roof because this is how it seals and becomes seamless.

Apply the rubber to the roof evenly, and make sure to unfold the rubber after you have finished applying the adhesive.

This ensures it won’t dry out without attaching to the membrane. When you are done applying, cut away the excess rubber to complete the fit.

Final Thoughts on How Long Rubber Roofs Last

Rubber roofing is becoming more common due to its greater durability and lower installation costs. If you own a commercial building, you may want to consider installing a rubber roof to prolong its lifespan.

With proper installation and a favorable climate, a rubber roof can last 50 years.

Nov '19

4 Effective Options to Drain Your Commercial Flat Roof

One of the most common issues with flat commercial roofs is water accumulation. That’s why finding effective ways to drain your commercial flat roof is critical to its long-term health.

When water does not drain effectively, it pools up and damages the roof and underlying structure.

This can be especially devastating when there is damage to the façade of the roof. This means that water gets into areas it is not meant to be in (think leaks) and then permeates throughout the rest of the roof.

This can lead to additional water damage and potential structural damage that can be dangerous for the building and its inhabitants.

Thankfully, there are a few ways to ensure the water drains from your flat commercial roof, keeping it free and safe from potential water damage.

4 Options to Drain Your Flat Roof

Gutters
Scuppers
Interior Drains
Edge Drains

Gutters

Gutter systems, one of the most commonly used solutions, are also very cost-effective drainage solutions for flat roofs.

As the water rolls off the roof’s edge, gutters catch that rainwater and then divert it down into a downspout, which dispenses the water a safe distance away from the building’s foundation.

Ultimately, this prevents rainwater from rolling off the roof uncontrollably and running down the side of the building. Uncontrolled dripping can damage things like windows, siding, and even the foundation of the building itself.

However, there are disadvantages to using gutters as the primary drainage system on a flat roof. The first is that gutters need consistent cleaning to do their job effectively.

When debris, like leaves, builds up in the gutter, it blocks the flow of water. When the debris is not cleaned out, the water builds up and then overflows, running down the side of the building.

Gutters are also very susceptible to damage from ice, severe weather, and heavy debris buildup.

These are factors to consider when looking for drainage solutions for your flat commercial roof.

Scuppers

Scuppers are perhaps one of the most effective drainage solutions for a commercial flat roof. Using this system, large square openings are made along the edge of the roof, shooting the water safely away from the side of the building.

Downspouts can also be installed directly below the openings, which catch water and drain it away from the building in a controller manner similar to the gutters.

Flat roof scuppers also have several benefits. In addition to being cost-effective, they are much easier to maintain, meaning you won’t have to clean them as you would gutters.

Those wide, large scuppers will rarely get clogged by debris, and a well-designed scupper can even enhance the overall aesthetic of the building, making it look a little bit nicer than traditional gutters would.

Like anything else, however, downspouts have downsides. If you install the downspouts above, they risk getting clogged, requiring regular checks for debris buildup. They can also be quite ineffective for heavier snowmelt and rain.

Also, scuppers tend to be less effective on a flat roof with no pitch to guide the water to the edges of the building; the scuppers have to be somewhat cleverly designed to have the best overall effectiveness.

Interior Drains

These are similar to how the drain in your sink or shower might work. These drains would be placed in the roof areas where the water will most likely build up.

The interior drains would then lead the water through a system of pipes installed below the roof. The water would travel through the pipes until it was dispensed into a gutter or downspout on the side of the building.

Using an interior drainage system has some notable benefits. The first is that the walls and foundation of the building are protected from water damage.

The second is that the pipe system is protected from damage by the roof and walls, reducing the chances of freezing or cracking.

Lastly, this type of system is highly customizable, so you can get the exact kind of system you want.

There are downsides, however. This is the most expensive option due to the nature of the installation and customization.

Additionally, any damage that does occur must be repaired by a professional roofing technician.

Edge Drains

Edge drains work just as they sound: they sit at the roof’s edge and collect the water there.

It operates very similarly to a public shower. Scupper drains are similar in that the goal is to prevent water from running down the side of the building and causing additional damage.

Edge drains are a simplistic way to divert water from running down the side of the building.

They point the water to a predetermined destination so that it can drain safely away from the building without causing any damage.

Final Thoughts on Flat Roof Drains

Whatever the solution, drains are necessary for the life of your roof. If left unchecked, water buildup can lead to substantial issues over time.

Failure to address water pooling on your flat roof system often leads to serious and expensive consequences.

As a result, be sure to get your drainage system in place and ensure it works correctly.

Nov '19

4 Ice Dam Prevention Tips for Metal Roofs

Key Ice Dam Prevention Tips

Minimize Warm Air: Identify and Seal Air Pathways To Your Attic

Measure Attic Insulation: Determine the R-Value of your Attic Insulation

Add Additional Floor Pads: Adding More Floor Pads Will Help Prevent Heat from Escaping

Ensure Ventilation: Ensure The Roof Includes Either Soffit Vents or One Foot of Gable Ventilation (or an Alternative Roof ventilation) Per 150 square feet of The Attic Floor

One winter issue that you may need to worry about, particularly if you have a metal roof, is what is known as an ice dam. An ice dam is where ice and water become trapped on a portion of the roof and catches any flowing water. This can be particularly bad for your roof.

Ice dams can cause a number of different issues for your metal roof. The water can get under the metal shingles, raising them up and leaking water down onto the roof below. This can cause heat loss as well as damage to your attic space as well as further structural damage to the wood surrounding that area.

What Causes Ice Dams to Form?

This occurs when the heat that is inside the house rises up to the attic space. There it continues to rise until it reaches the apex of the roof.

That warm air then warms up the top of the roof itself; this causes the snow that has built up there to melt, and that water runs down the surface of the roof.

When it reaches the colder edges that are at the bottom of the roof, that water then refreezes and forms a wall of ice (or a dam). That ice then traps additional water, causing icicles and additional ice and water to build up.

Preventing Ice Dams on Your Roof

So, what can you do to prevent those ice dams from building up and causing substantial damage to your metal roof over the winter? Here are a few helpful tips that can go a long way toward keeping your metal roof protected.

1) Minimize The Impact of Warm Air

The flowing of warm air really aids in the buildup of water, which then causes the ice dams to form. In order to prevent the ice dams from forming, you need to ensure that the warm air is kept to a minimum when flowing outward to the roof.

You can do this by first sealing the air leaks that can lead to the attic space. Locate those little pathways where the warm air can rise up inside the attic and make sure that they are properly insulated. This is an effective long-term solution to solving the ice dam problem that plagues so many metal roofs.

The first step is properly identifying those holes and then sealing them. You can use something like weather stripping to make sure that they are properly insulated and then make sure to seal all of the holes through which that warm air can escape into the attic.

2) Measure Attic Insulation

The next step is measuring your attic insulation so you can bring up the level of the attic floor if necessary. Most homes within a snow-belt zone will be required to have a level of attic insulation that is around R-49, as rated by Energy Star.

Older homes are generally not properly insulated, which means that you have to have additional floor insulation added to your home’s attic. To do this, you need to find out what the current level of insulation is in your attic.

You can grab a ruler and measure the height of the insulation in your attic and then multiply that height in inches by 3.14, and that will give you your attic’s current floor insulation R-Value.

If your level of insulation isn’t where it needs to be, you will have to purchase additional levels of energy-efficient floor insulation pads for your attic to ensure that it is properly insulated from the cold. This will help keep your roof from getting those annoying ice dam buildups.

Icicles are just part of the problem with ice dams. You may have to buy floor insulation pads for your attic to insulate it from the cold.

3) Add Additional Attic Floor Pads

One of the most important things to do here is to ensure that you are not putting the insulation into corners where the attic floor and the roof walls wind up meeting.

This is because it can create something of a cold area near the edge of the roof; this can contribute to ice dam formation, and it can block the air in-flow as well.

That additional attic floor padding will help to properly insulate your roof so as to keep it protected and to keep that additional heat from escaping into the roof itself.

That additional insulation will go a long way towards preventing the buildup of ice and water, which leads to those pesky ice dams building up on your roof.

4) Ensure Proper Attic Ventilation

Next, make certain that your attic is also ventilated properly. First, you need to check to see if you have soffit vents installed. These are designed to drive cold air into the attic, and you will be in good shape if you have them.

If you don’t have soffit vents, then you will need to have gable vents installed as an alternative. Generally speaking, you want to have one foot of that gable ventilation or any alternative roof ventilation for every 150 square feet of your attic floor.

When you ensure that you have proper ventilation, you prevent the buildup of heat that can melt water and cause it to become trapped in areas of your roof, causing those troublesome ice dams to form.

It might be a bit of a hassle, but ensuring that those ice dams do not form can mean the difference between a properly functioning roof and one that can become damaged and cause issues with your roof.

Final Thoughts on Ice Dam Prevention

Prevent ice dams with these relatively easy steps, and you can ensure that your metal roof holds up during even the toughest of winters. The key points to remember are minimizing warm air, measuring attic insulation, adding more floor pads (if necessary), and ensuring proper attic ventilation.

Nov '19

What is The Lifespan of a Commercial Roof? (Updated for 2023)

Key Takeaway

The lifespan of a commercial roof is between 10 and 40 years, with factors like climate and installation quality impacting its longevity.

The roof is one of the most overlooked yet essential portions of your commercial building. When it is working as it should, it is out of sight, out of mind. But when there are issues, you can’t help but notice them and nothing else.

Knowing how long you can expect your commercial roof to last can help you prepare for repairs or a replacement instead of operating out of panic. Roofing replacement or repair can cost quite a bit of money and is something that can be catastrophic without properly saving and planning.

How Long Should My Commercial Roof Last?

This obviously cannot be answered as several factors can play into the life of a commercial roof. It depends on when the roof was installed, how it has been maintained, what materials were used, the weather in your location, and other factors.

Generally speaking; however, a commercial roof can be expected to last anywhere from 10 to 40 years. Here are some of the materials that are typically used in the construction of a commercial roof.

How Roofing Materials Impact Longevity

While this isn’t the end-all, be-all list of materials used, these are the most common commercial roofing materials that are used and their expected lifespan:

Ethylene propylene diene terpolymer. This is known as EPDM and can have a lifespan in the range of 22 to 35 years.
Thermoplastic polyolefin. This is known as TPO, with a general life expectancy of 22 to 30 years.
Metal roofs have a general life span of 30 to 45 years.
Polyvinyl chloride. This is known as PVC and carries a life expectancy of 20 to 30 years.
Asphalt roofs have a life expectancy of 20 to 40 years.

The materials are just one aspect, though. Other factors play heavily into the life expectancy of a commercial roof.

Other Factors That Influence Commercial Roof Lifespan

When installing a commercial roof, these are just a few of the factors worth considering, as they can each play a large factor in the life of that roof. Again, these are based on expected life spans and are by no means a science. You could have all of these factors, and your roof could be fine for 40 years.

Slope

When you have a flat roof, it is far more likely that water will pool on the surface; this is just gravity at work (or not at work, in this case). When the water doesn’t flow down the roof and onto the ground, it will find its lowest point and stay there until it evaporates.

Low spots are often where the damage starts, and leaking is often the first sign of damage.

Installation

The installation process is perhaps the most important step. This is because any flaws that occur during the installation process can ultimately shorten the life span of any roof. It is essential that when you need a new roof installed that you choose a contractor that is reputable, well-qualified, and experienced.

Don’t automatically look for the cheapest option; it can be worth it to shell out a few more bucks to ensure that you get the necessary work done.

Ventilation

The attic space that lies just underneath the roof itself needs proper ventilation. This ventilation is key because it helps prevent moisture and heat build-up. This is especially important during the summer months when the hotter temperatures in the attic space and up on the roof will essentially bake the roofing materials.

That built-up moisture can ultimately lead to mold and rot, which can cause a whole other list of problems for your building.

Maintenance

Though it may seem like a huge hassle, routine maintenance and inspections on your roof can prevent those small problems from becoming far larger. It can be easy to neglect your roof, especially when there are issues.

It is imperative that you do not, under any circumstances, ignore those problems. They can lead to huge issues that can make your commercial building unsafe to be inside.

Weather & Climate

This is one of those factors that you kind of can’t help. Depending on the area that you live in, your building might be susceptible to higher winds, hail, heavy rains, or heavy snow. This kind of exposure to the elements can wear on a roof over a long period of time and really cut down on the expected life of a commercial roof.

Final Thoughts on Commercial Roof Longevity

When there are issues regarding the condition of your commercial roof, it is important to have a dependable roofer available. When there are issues with the roof, it can lead to huge problems and structural damage to the rest of your building. This is why it is important that you never, ever ignore problems that might be occurring with your roof.

The life of your commercial roof depends on all of the factors outlined above, each one having its own individual impact when it comes to the life of your commercial roof. Even though you can’t help things like weather and time, preventative measures can be taken to ensure that your commercial roof enjoys a long-lasting life. You can even take preventative measures yourself by simply checking your roof every once in a while to see if there are any leaks or damaged areas that might need attention.

The roof can feel like a hassle, especially when you know that there may be something wrong, but make sure that you take those steps to inspect the overall health of your roof. It is something you will be thankful that you did over time when you extend the lifespan of a commercial roof and hit those huge milestones instead of having to be replaced entirely.

Nov '19

Roofing Diagnosis 101: Metal Roof Leaks Around Screws

When it comes to roofs, there are few products that can match the strength, durability, and performance that a metal roof can offer. But like just about anything else, metal roofs are not indestructible, and they definitely can spring leaks. Here are just a few things to look for if your metal roof is beginning to leak.

Knowing where and how to identify leaks in a metal roof is the first step towards implementing the repairs that you will need to get your roof back into working order.

Metal Roofing Screws

More often than not, if you have a leak in your metal roof, a metal roofing screw is the culprit. When installed properly, metal roofing screws will seal out the water by compressing a rubber washer down at the base of the screw head.

When the screw is then driven down into the metal roofing panel, the rubber washer will form a gasket of sorts between the roofing panel and the screw head itself.

While this sounds like a simple process, there are definitely things that can go wrong, and we will go over a number of those later in this piece. The key is to know that when you have a leak, you should go for the site of the metal roofing screws before checking out anything else.

Here are a few of the ways that a metal roofing screw can lead to a leak in your metal roof.

Under Driven Screws

This can happen when you don’t have enough torque on the screw as it goes into the metal roof itself. What causes the leaking is that the rubber washer does not properly seat against the metal roofing panel. When this happens, the rubber part of the screw is never compressed, and there is no gasket seal that is formed.

This can typically be remedied by tightening down the roofing screws with additional torque. This might not resolve the issue every single time, but it likely will solve the issue the majority of the time. This is one of the easier fixes that you can implement when your metal roof springs a leak, particularly around the metal screws.

Overdriven Screws

This is the other end of the spectrum. In an effort to ensure that the tight seal between the screw head and the metal roofing panel has been met, the screw can be overdriven into the metal roofing panel. This can lead to damage to the roofing panel itself, which presents other problems that may need to be addressed.

The added torque generally breaks the rubber washer and makes it spin out to the side, preventing the sealing necessary that keeps the water from leaking down into the hole.

In some cases, you can simply take some of the torque off of the screw; in others, the screw may be stripped, and there could be pressure damage to the metal roofing panel itself.

Screw Driven At Wrong Angle

Again, the key to a successful screwing of the metal screw is getting that seal. When you screw down at the wrong angle, there is nothing for the rubber washer to sit flat against. This will result in the seal not taking effect and leaks persisting around the area.

When something like this happens, you can generally unscrew your driven screw and use the proper torque to re-screw it in. You know you have done it properly when the rubber seal sits flush against the metal roofing panel and keeps the water from leaking through.

This is a pretty easy fix as, in most cases, the screw will not have done any damage to either itself or the metal roofing panel. Simply unscrew the current installation and make sure that you screw it in again so that it sits flush with the panel.

Screws That Missed Wood framing or Strut

When something like this happens, the screw has nothing to seal against, and leaks can be hard to find because many times the screw is right there, but without actually touching it you wouldn’t know that it didn’t actually seal or hit anything.

Always double-check to ensure that the screw has been sealed properly and grabbed onto the strut or wood framing below. You can save yourself a ton of trouble by double-checking your work each time and won’t have to revisit a leak area caused by inefficient screwing.

Faulty screws

While it isn’t the most common of causes that there are, you could find yourself having leaks after a proper installation simply because the rubber washer might not be safe or complete. It is also important to check on the screws after each season because hot summers followed by frigid winters are likely to be unkind to those rubber washers.

Over time, and with temperature changes, can degrade those rubber washers and make them lose their seals. When something like this happens, it can be difficult to find a difference between where the screws are leaking and where they are not.

How To Prevent Leaks Created by Metal Roofing Screws

It is essential that you double-check your work before walking away from the roof. Screwing in a screw with too much or too little torque can be a common cause, as can a screw that is placed at an improper angle.

When you double-check your work, you ensure that there are no screws that will slip by you, and you should not have to deal with leaks.

But should there be leaks in your metal roof, you have a pretty good idea that the metal roofing screws are the culprit. Take a look around, inspect those screws, and make adjustments where you need to.

Leaks in your metal roof don’t have to be a catastrophe. Taking proper care and using common sense can save you a lot of headaches and hassle and leave your roof standing up to the test of time and those pesky leaks.

Nov '19

Hail Size Roof Damage Chart

When a storm rolls through your town, there are a lot of things that can do damage. Heavy winds are the usual culprit, but hail is another type of storm that can do significant damage. The most recent annual data estimates over 3,700 hail storms in the United States.

After these storms, it’s handy to have a hail size roof damage chart at your disposal, like the one below:

Key Takeaway

Any hail larger than a ½ inch can damage a roof, meaning ¾-inch to 1-inch hail (quarter size) and 1 ¾-inch to 4 ½-inch hail (golf ball size) should prompt a call to your insurance company.

Assessing Roof Hail Damage by Size

When hail grows in size, you can be concerned about things like your car or, even worse, your roof. The costs can be heavy when there is damage to your roof. Even minor damage can cost thousands of dollars, and most of us do not have that kind of money lying around.

They say they are there for us when disaster strikes, but most insurance companies will find any reason not to pay out a claim. After all, it is how they strengthen their bottom line.

When hail becomes a concern, it can help to know what size hail can damage your roof. Again, not all hail is worth worrying about, but when those bigger chunks begin to hit, you can wonder what to do. Inspecting your own roof is dangerous, and you may not know what to look for.

Most people won’t be able to manually measure hail during a storm, so you can estimate using common identifiers like “golf ball size” and “marble size.”

Understanding which hail sizes can damage your roof gives you a good idea of when to call in an inspector to check for damage on your roof. Here are a few of the most common hail sizes that damage roofs nationwide.

¼-inch Hail (Pea-sized Hail)

Milder hailstorms generally produce this size of hail, but only for a few minutes at a time before it shifts over to steadier rainfall. When dealing with this size of hail, a roof can often fair pretty well.

Use some common sense and judgment before jumping to any conclusions.If you have an older roof with existing damage, pea-sized hail could exacerbate the present damage. Be aware of the condition of your roof before judging whether it needs an inspection after a hailstorm.

½-inch Hail (Marble-sized Hail)

Marble-sized hail can also fall into the safe zone when it comes to hail, meaning it generally doesn’t cause damage to roofs that don’t already have substantial damage.

Remember that hail is produced by updrafts of wind that shoot raindrops higher into the atmosphere. It freezes when it gets higher into the atmosphere and then falls back to Earth.

When you have more extreme winds, the hailstones will generally be larger. While the quarter-inch-sized hailstones might not be of much concern, exercise caution and common sense again.

If you have any thoughts that there might be damage to your roof, call in an inspector immediately.

¾-inch to 1-inch Hail (Dime to Quarter-sized Hail)

You should call an inspector immediately when you see hailstones larger than the ½-inch described above. Finding a reputable local roofer is a great place to start, and you also need to make sure that you place a call to your insurance agent.

Hail this size generally damages roofs in the form of dents and cracks, though in some cases, it can definitely cause greater damage.

Do not leave this unaddressed. As expensive as it can be, if you leave the damage unaddressed, it could become a more expensive, extensive, and potentially dangerous condition to live in.

In any event, you must talk to your insurance agent immediately. Knowing what your policy covers and what might be paid for can help you determine your budget and which contractor to use.

Part of the headache of dealing with damage to your roof is dealing with the insurance company; try to get that duck in a row as soon as possible.

Once hail size approaches 1 inch, you will most certainly have roofing damage of some form. It’s important to contact your insurance company as soon as possible.

1 ¾-inch to 4 ½-inch Hail (Golf Ball-sized Hail)

While not an uncommon hail-size range, golf ball-sized hail can still substantially damage your roof, car, and home. Like with dime-size hail, you should contact your insurance agent by phone to discuss your options.

Agents might send a roofer to determine the overall damage before proceeding. Your policy may cover a portion of the damage your roof sustained.

Hail can be a nasty beast, even if it only occasionally rears its ugly head. Whenever there is hail in your area, you must assess the size of the hailstones first and foremost. Under ¾-inch, you are probably fine unless your roof already has substantial damage and age.

Anything larger than 1/2 inch should prompt you to discuss the next step with your insurance agent and find a roofing contractor to inspect your roof.

The Bottom Line for Roofs With Hail Damage

Being calm and knowing the steps to take when a hailstorm hits your area can make all the difference in the world when trying to get the necessary repairs done.

The key is not to panic and not jump to conclusions. Make sure that you take all of the proper steps so that you can not only get your roof repaired but get it done in a cost-effective way.

Because hail damage leads are often hot items for roofers, cities recently hit by storms will be ripe with them. Be aware of whom you’re dealing with.

If you are unsure whether or not your roof was damaged by a hail storm, getting an inspection is the best option. Even if the hail is around 1/2 inch in size, it can exacerbate existing problems with the roofing system.

When hail is larger than 1/2 inch, including quarter and golf ball size, your roof is almost certainly in danger. The more quickly you address damage from hail storms, the less future complications arise.

Oct '19

Impact Resistant Shingles vs. Regular (2024 Update)

Impact Resistant Shingles vs Regular (Blog Cover)

Impact-resistant shingles famously provide a strong defense against wind and hail. But are impact-resistant shingles that much better than regular ones? The following post explores the true value of this roofing protection and whether it is cost-effective for business owners and homeowners in the U.S.

Roofer’s Guild examines:

Practical applications for impact-resistant (IR) shingles in a commercial setting
Financial incentives vs. requirements for adopting IR
General composition and design of these enhanced materials
Key players in the IR shingles market

Daylight Shingle Perspective (Screenshot)

Key Takeaway

Impact Resistant Shingles withstand the trauma of hail strikes without breaking, making them worthwhile for homeowners in hail-prone climates like Texas and Florida.

Table of Contents

What is Impact Resistant Roofing?

Impact resistance is a material’s ability to withstand the force of an object striking it without breaking.

In roofing, an impact-resistant shingle can withstand the impact of a moderately-sized hailstone falling at up to 90 miles per hour.

The specially crafted material distributes the force so effectively that it leaves the shingle without cracks. Such distinctions make the rating system crucial for residential and commercial building protection.

A Look at IR Shingles From the TAMKO Heritage Line. These Feature Class 4 Impact Resistance.

Identifying Impact Resistant Shingles

Like many building materials, shingles and other roofing products are rated by their impact resistance. Material rating specialists classify them on a scale of 1 to 4, with Class 4 materials showing the greatest resistance. Keep in mind that not all materials are rated for impact resistance.

Two key organizations govern the rating system and submit classifications for new materials. These are Factory Mutual (FM) and Underwriters Laboratories (UL). Underwriters Laboratories is particularly famous for its testing and classification systems for impact and fire resistance.

Their standard, UL 2218, created the Class 1 – 4 rating system. Most manufacturers follow this standard for rating their materials, and you can easily confirm classifications on their company websites.

Key Benefits of Impact Resistant Shingles

Enhanced Weather Defense

With enhanced impact resistant shingles, your building has ample protection against both hail and would-be leaks. That means fewer visits from your roofing contractor and more occasional calls with your insurance agency. Of course, there are also thousands of dollars in savings.

Extended Shingle Lifetimes

Your average asphalt shingle comes with a lifetime of 15 to 20 years. That’s assuming the material endures years of solar radiation, hail trauma, pests, and other threats. On the other hand, impact-resistant shingles often last up to 30 years. That’s a decade more of additional protection.

If your business prefers to make longer-term investments, IR shingles could be a great call. Their hardened exterior makes them much more likely to last the full length of their estimated lifetime too. Compare shingles from different manufacturers to find the maximum investment impact you desire.

Improved Cost Effectiveness

Combine a longer estimated life cycle and superior weather protection, and you have the makings for some impressive cost savings.

While impact-resistant shingles may run 10 to 20 percent higher than traditional asphalt varieties, that cost spreads over a longer lifetime.

Since only the most severe storms can inflict significant damage, your chances of early replacement during those 30 years are wonderfully slim.

If your building insurance company offers rewards for high-grade IR shingle installations, you can add even more savings into the equation.

Many insurance agencies publish a list of roofing materials that qualify for credits. Here’s an example from State Farm.

Impact Resistant Shingle Design

Shingles may incorporate any number of alternative materials for added strength.

Some of the most commonly found additions include:

Plastic
Specialized resin
Copper
Aluminum

Owens Corning Shingle Makeup (Screenshot)

Copper is One of the Many Durable Materials That an IR Shingle May Employ. Source: Owens Corning

Metal shingles are incredibly popular for their outstanding defense against weather threats. In lighter colors, they produce a reflective barrier against sunlight.

With the subsequently reduced heat gain, business owners (or homeowners) earn incredible energy savings during daylight hours.

IR Shingle Manufacturers

While there are plenty of names to choose from, below are four of the most prestigious IR shingle roofing brands.

TAMKO Building Products

TAMKO offers several options, including the Heritage IR shingle line. These TAMKO shingles utilize a polyester mat for additional reinforcement against impact trauma. The extra mat also strengthens the shingle’s common bond areas and sawtooth.

The seasoned company offers a Limited Lifetime Warranty plus a 10-year coverage period to repair or replace any shingles with manufacturer defects.

Owens Corning

A world-renowned manufacturer in roofing and other building industries, Owens Corning knows how to create dependable products.

Owens Corning shingles from the Duration STORM line feature polymeric backing for more robust protection against impact trauma. Their SureNail Technology also produces a much firmer grip than the average commercial shingle, offering great defense against uplifting wind force.

Owens Corning shingles come in various colors, from Antique Silver to rich Brownwood. Like other top manufacturers, the company also provides a Limited Lifetime Warranty for its IR shingle products.

Finally, the Duration STORM IR shingles come with algae-resistant StreakGuard, a very helpful feature in consistently high humidity areas.

CertainTeed

Institutions often recognize CertainTeed for its generous warranty provisions and as a trendy brand among residential and commercial property owners. Like most manufacturers, the company offers a limited lifetime warranty (transferable).

Not to be outdone by TAMKO, CertainTeed shingles in the Landmark IR line also come with a 10-year SureStart warranty, covering any labor and replacement costs incurred due to manufacturing defects. On top of that, CertainTeed also offers a 15-year warranty for wind resistance (up to 130 miles per hour).

CertainTeed’s fiberglass design also comes with a Class A fire-resistance rating (the best) from Underwriters Laboratories, making it an attractive option for security-conscious business owners.

GAF (Timberline)

GAF takes the three-dimensional aesthetic design further with its unique feathering technique, which instills a stronger feeling of depth in a commercial rooftop.

GAF’s ArmorShield II SMS Modified IR Shingles incorporate this beautiful “shadow band” element while maintaining a powerful shield against impact trauma. The result is an equally stylish and robust rooftop.

This line of GAF shingles also features StainGuard protection against algae growth, keeping your roof vibrant and stain-free.

ArmorShield II boasts a 4.3/5 contractor rating on Research Roofing, with exceptionally high marks for durability and longevity.

Research Roofing Shingle Rating (Screenshot)

Consider Whether Durability, Longevity, Customization, Color Options, or Aesthetics are Most Important to Your Business.

Choosing Your IR Shingle

Design and Color Options

Asphalt shingles are a well-established solution among homeowners and commercial organizations.

Because of their popularity, manufacturers produce dozens of attractive options that cater to your exact color tastes. They also come in many different styles for a more visually stimulating appearance.

With impact-resistant shingles, however, manufacturers often have limited options available. Of the four brands we mentioned earlier, each company offers less than ten color schemes.

Architectural shingles provide a sense of depth but also face the same color restrictions.

Storm Resistance & General Durability

Impact-resistant shingles are remarkably tougher than your garden-variety asphalt products.

If you install one of these enhanced roofing systems, you can expect little to no damage during moderate hail storms.

Price Vs. Payoff

From a financial perspective, paying 10 to 20 percent more during your next roof replacement may feel high. With that said, IR shingles typically last a full decade over traditional asphalt shingles.

They also have fewer (if any) instances of damage requiring early replacement. Your company may also qualify for incentives with your building insurance company.

Final Decision on Impact Resistant Shingles

Impact resistant shingles are superior to regular shingles, particularly in storm-heavy climates like Texas and Florida. You can expect the higher-grade shingles to last at least a decade longer than its counterpart.

Furthermore, damage caused by hail and other severe weather events is almost always more expensive than investing in the sturdier shingle.

Oct '19

Synthetic Slate Roofing: Problems, Benefits, and More

Considering its affordability and aesthetic appeal, synthetic slate roofing is an appealing alternative to its authentic counterparts.

As we know, roofing manufacturers are famous for reproducing more cost-effective versions of popular materials, and slate is no different.

Synthetic slate is popular in cathedrals, libraries, estate homes, and other places in the U.S. and Europe.

Like other roofing materials, synthetic slate presents problems, possibilities, and nuances that determine its fit for a particular project.

Below, Roofer’s Guild dives into synthetic slate roofing and whether it is the right choice for you.

Key Takeaway

Synthetic slate roofing presents vast benefits, such as durability and longevity, as the material can last up to 100 years.

Problems With Synthetic Slate Shingles

Synthetic slats may appear faded and discolored or begin to curl. They can also come damaged in the box, primarily when lines of the corners roll up.

You can flatten these out in most cases, but it is definitely something to look out for.

Benefits of Synthetic Slate Shingles

The benefits of using synthetic slate shingles are numerous, and there is a good reason that they have become a popular alternative to authentic slate shingles.

Among the benefits:

Cost

While synthetic slate shingles are not technically slate—they are generally made from rubber and plastic—they are designed and constructed to mirror the unique, beautiful, authentic slate, but without the major cost or the installation process that can leave you with a stress headache.

Longevity

Synthetic slate shingles are designed to last longer. There will be no more cracking, no more costly and difficult repairs, just more durable, flexible, and reliable materials.

Green Building Alternative

Using synthetic slate shingles is considered a “green” building alternative, even for those that use virgin materials. Just about any type of synthetic slate can be recycled.

Durability

Synthetic slate shingles tend to be much more durable than their authentic counterparts. The synthetic variations contain advanced ultraviolet inhibitors to reduce wear from constant sun exposure.

Safety

Synthetic slate generally has impact modifiers to help it withstand storm damage. Most are certified by Underwriters Laboratories as Class 4 impact resistance, the highest level for roofing materials.

Most synthetic slates also earn the highest fire-resistance ratings – Class A – which means they are effective at fighting exposure to external fires, are not readily flammable, and do not spread fires.

Installation

Synthetic slate shingles are far easier to transport and install than most other roofing materials.

At 1.25 pounds per tile, they are far lighter than asphalt shingles and about a quarter of the weight of a standard authentic slate shingle.

Their lightweight means that even a standard roof structure is able to support these synthetic slate shingles without requiring any special reinforcement.

They are practical for mainstream construction in residential areas.

During the installation process, the synthetic slate shingles can be cut using a field utility knife and nailed into place with a pneumatic nail gun and standard roofing nails.

Comparison to Authentic Slate Shingles

Authentic slate shingles are expensive to purchase and install. In addition to the cost, authentic slate is hefty, which impacts transportation and installation.

Authentic slate shingles are also fragile, especially during the cutting and nailing process. After installation, they become particularly susceptible to cracking.

Cost of Replacing Slate Shingles With Synthetic Slate Shingles

The average roof in the United States is about 1,600 square feet. Each square of synthetic slate shingle can run in the neighborhood of $350-475 per square.

Incredibly, that pales in comparison to the $1,650-$3,000 per square cost of authentic slate tiles.

You’re looking at $$8,400 – $17,600 for a synthetic slate shingle roof and $26,400 – $48,000 for a natural slate roof of the same size.

Coupled with the durability, lightweight, and ease of installation, it is clear why so many are moving away from natural slate roofs.

Synthetic Slate Shingle Manufacturing Process

Synthetic slate shingles are made through injection molding. Petroleum-based materials are injected into metal forms cast from authentic slate.

Some brands of synthetic slate shingles use virgin plastic or rubber in the manufacturing process.

Others use recycled plastic or rubber, as well as cellulose fibers or mineral dust.

Once the molded materials harden, the synthetic slate shingle gains long-term durability.

The manufacturing process of synthetic slate shingles contributes to its lower cost and stronger durability.

Final Thoughts on Synthetic Slate Roofing

Making the switch to synthetic slate shingles is a sound long-term investment. They are meant to withstand heavy weather conditions and enjoy an extended roofing lifespan.

Ensure you have a warranty that will cover your roof in case of any damage.

After you have completed the installation process, you can sit back and enjoy your beautiful and durable synthetic slate roof for a long time.