PROTECTING YOUR COMMERCIAL ROOF FROM THE SUN

PROTECTING YOUR COMMERCIAL ROOF FROM THE SUN

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PROTECTING YOUR COMMERCIAL ROOF FROM THE SUN

July 10, 2018

When we think about how nature can deliver a beating to our commercial roofs, we usually think about rain and wind. But in dry, hot climates, roofs face another of nature’s challenges, one that can be just as devastating over time: the sun. Prolonged exposure to hot sun can take a serious toll on commercial roofs, weakening them through thermal shock and UV breakdown, and heating the building beneath them.

Below, we’ll talk about what you can do to protect the most vulnerable part of your building from sun damage.

 

HOW HOT CAN YOUR ROOF GET?

The temperature of a roof under the sun depends on its material and color, as well as the environmental conditions around it. This is because of the way in which solid materials absorb the sun’s rays. Sunlight enters the atmosphere as ultraviolet (UV) radiation. Your roof absorbs those UV rays and converts them to infrared radiation, which is re-emitted as heat.

We all know that darker colors absorb more of the sun’s rays (that is, in fact, why they’re darker), so darker colored roofs will be hotter under the sun. A black roof can be anywhere from 50 to 100 degrees hotter than the ambient temperature, meaning that, on a 90-degree day, your roof could be as hot as 190 degrees. Unpainted metal can be as much as 50 degrees hotter than the surrounding temperature, while a plain white roof can be as much as 30 degrees hotter. Specialized roof coatings, like those produced by the Topps® company, convert those oftentimes to just 2° F. over the outside air temperature.

 

 

WHAT AREAS ARE MOST SUSCEPTIBLE TO HEAT DAMAGE?

Unsurprisingly, the areas of the country most affected by heat damage are the ones known for their hot, dry, sunny climates, especially Texas, New Mexico, Arizona, and Nevada. As anyone who lives in these places knows, summers here can be brutal. Averages hover in the 90s and highs can soar towards 110 degrees. Surprisingly to those outside the Midwest and South, summer temperatures often hover in those temperatures, too.

But it’s not simply the heat that puts buildings in some states at risk, it’s also the elevation and aridity. Because atmospheric moisture pulls UV radiation out of the air, roofs with less humidity and atmosphere between them and the sun are more exposed to UV radiation. A roof in Las Vegas on a 90-degree day will be more vulnerable, in a shorter period, than a roof in Miami on a 90-degree day, because it is absorbing so much more UV radiation.

 

 

THE EFFECTS OF EXTREME HEAT ON YOUR ROOF

Heat exposure can damage roofs or compromise buildings in a few important ways.

WEAKEND ROOFING MATERIALS

Extreme temperatures can take their toll on roofing components, causing them to crack, curl, break down, and dry, and shorten their lifespan.

THERMAL SHOCK

Like most materials, when roofs get hot, they expand, and when they cool down, they contract. This constant process of expansion and contraction will compromise their structural integrity, causing them to crack and disintegrate, and pulling apart seams. For metal roofs, fasteners loosen, and seams open up. This is especially a concern in climates where temperatures can fluctuate vastly and quickly between day and night. Or, where cool rains can shower onto hot roofs.

UV DAMAGE

UV rays don’t simply damage roofs on account of the heat they cause. They can also alter the molecular structure of some roofing materials, causing oxygen molecules to bind with hydrocarbons in the material, which can lead to brittleness and cracking. Similarly, UV rays attack the original protective finish of other roofs such as metal roofs. That’s when rust develops.

COOLING COSTS

When roofs absorb heat from the sun, they emit much of that heat below them, raising building temperatures. This, in turn, requires you to use more energy to keep your building cool and comfortable.

 

 

HOW TO PROTECT YOUR ROOF FROM EXTREME HEAT

As we’ve shown, roofs take a beating from the sun. However, there are a few things you can do to substantially mitigate that damage.

INSPECT ANNUALLY FOR VULNERABILITIES AND TROUBLE SPOTS

You should inspect your roof once a year for signs of sun damage. Check for gaps in seams, and cracking or curling of composites. Any signs of damage should be addressed immediately, and in some cases, you may consider a restoration process to bring your roof back into shape. This process is where a stitch-in-time can save nine. Wait too long, and the option expires.

ADD VENTILATION

Making sure that the area beneath your roof is properly ventilated can help to reduce heat and humidity build-up.

PROTECT YOUR ROOF WITH A HEAT-RESISTANT COATING SYSTEM

The single most effective thing you can do to protect your roof from sun and heat damage is to apply a heat-resistant coating to it. These coatings reflect UV radiation away from the roof, so that your roof can’t absorb it and turn it into heat.

Metal roofs with a reflective coating can be about 40% cooler than unpainted metal roofs, and the temperature of black roofs can drop as much as 50 degrees F. when a reflective coating is applied. Heat-resistant coatings can protect your roof from thermal shock and UV damage, while also slowing the aging process and lowering cooling costs.

 

CONCLUSION

The sun is a formidable foe to your commercial roof. Its rays can bake roofing materials, break down structural components, and cause devastating thermal shock. In places that are especially exposed to the sun, a little preparation can prevent a lot of damage. Applying a heat-resistant coating and inspecting your roof regularly are essential to its health and longevity.

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Topps® Products has been providing industry-leading roofing solutions to building owners and facilities managers for over 30 years.

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PREPARING YOUR COMMERCIAL ROOF FOR A HURRICANE

PREPARING YOUR COMMERCIAL ROOF FOR A HURRICANE

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PREPARING YOUR COMMERCIAL ROOF FOR HURRICANE SEASON


June 25, 2018

Hurricanes are a serious threat to the Gulf and Atlantic coasts. Historically, roughly three major hurricanes hit the United States every five years, and in recent years that average has increased. In 2017 alone, hurricanes caused roughly $282 billion in damage to the United States and the Caribbean, with one storm, Harvey, accounting for almost half that total in Texas and Louisiana.

As hurricanes continue to threaten coastal states, property owners in these regions must reckon with the damage they can cause. No part of your building is more susceptible to hurricane damage than your roof, and special considerations should be made to help your roof weather the storm. Below, we’ll talk about how to prepare your roof for hurricane season, and what to do if a major storm hits your area.

 

Hurricane Season in the United States

The Atlantic Hurricane season lasts from June 1 to November 30th. The states most vulnerable to hurricanes in the U.S. are Texas, Louisiana, Mississippi, Alabama, Florida, Georgia, South Carolina, North Carolina, and Virginia (though, as Irene demonstrated in 2011, hurricanes can make landfall along the entire Atlantic coast). As summer approaches, anyone with property along the Gulf and Atlantic coasts should be sure that they’re prepared for the possibility of a major storm.

 

Hurricane Hazards

In order to protect against hurricanes, it’s important to be aware of the specific hazards they pose and how they can damage a roof. There are four main hazards to consider:

HEAVY WINDS

By definition, hurricanes produce sustained winds of at least 74 mph, and major storms produce winds upwards of 150 mph. While most roofs can hold up against typical wind gusts, the intense, sustained winds found in hurricane conditions can be severely destructive, tearing away unprotected roof components like flashing or gutters.

RAIN

Hurricanes and tropical storms drop an average of 16 inches of rain, with about 75% of total rainfall occurring during a 24-hour period after hitting land. Especially destructive storms can bring much more: Hurricane Harvey, believed by meteorologists to be the greatest single rainfall event in U.S. history, dropped almost 52 inches of rain. Heavy, persistent rainfall can be catastrophic to weakened or compromised roofs, causing structural weakening and leakage.

FLASH FLOODING

One consequence of heavy rainfall is flooding, which in a hurricane can happen rapidly. Water pooling can put tremendous stress on flat roofs, as well as drainage systems, and flooding can make it difficult or impossible to access your roof for days.

DEBRIS

Everything from tin cans to tree limbs can become deadly projectiles under hurricane force winds, exposing roofs to puncture and breakage.

 

How to Prepare Your Roof for a Hurricane

There are a number of measures you should take to make sure your roof is in good shape to withstand a hurricane, both year-round and when a storm is approaching. Below are some recommendations.

 

What to Do Before Hurricane Season Begins

PERFORM REGULAR ROOF MAINTENANCE

Keeping a routine maintenance schedule for your roof is a good idea under any circumstances, but it can save a lot of time and energy, and prevent serious damage, in the event that a hurricane hits your area. Check your roof regularly for wear and disrepair, especially around seams, joints, and flashing, and remove loose items and debris. Replace any rusted metal components or rotted wood, especially around curbs.

It’s a good idea to have your roof professionally inspected each year before June 1, and to address any issues of damage or wear. If your roof has multiple repair issues, you may consider a full roof restoration to bring it back into shape. While inspecting your roof, and after any repairs or restoration, be sure to document its condition with photos. This could be crucial if you have to file an insurance claim after the storm.

REMOVE OVERHANDING TREE BRANCHES

Have a tree service remove any limbs or weakened trees that could damage your roof in a high-wind storm.

CLEAR GUTTERS

Regularly clean gutters and remove blockage or clutter. It’s also important to keep your roof clean, so potential obstructions like leaves and dirt can’t make it into your drainage system. Water pooling from blocked drains can be severely damaging. Also, confirm that gutters and drainpipes are properly anchored, and replace any rusted components.

 

What to Do When A Hurricane Is on Its Way

DO A STORM INSPECTION OF YOUR ROOF

Check all roof-mounted equipment, such as air conditioners, satellite dishes, etc., to be sure that they are tightly and properly anchored. Check vents and stacks for the same, and make sure all flashing is properly secured. Remove any debris and loose items—they can clog drains, damage buildings, and potentially injure someone if taken away by wind.

Check for signs of rust, rot, or damage, including leaky seams, loose joints, and gaps. Regular inspection and/or restoration should prevent this kind of wear, but it’s important to confirm that your roof is in good shape before a storm, and to repair any damage immediately.

CHECK FOR BLOCKS IN THE DRAINAGE SYSTEM

Make sure that your gutters and drainpipes are poised to handle heavy rainfall by checking for blockage and pooling.

SECURE GUTTERS AND EQUIPMENT WITH STORM STRAPS

Make sure that gutters and roof-mounted equipment are properly braced for high winds with straps designed to anchor them to the structure.

PROTECT SKYLIGHTS

If your roof has skylights, be sure they are covered with plywood or caps, to prevent breakage and potential flooding.

SECURE HATCHES

Confirm that access hatches are adequately secured.

SECURE LIGHTNING PROTECTION SYSTEMS

If your roof has a lightning protection system, confirm that all cables and aerials are connected and properly secured. Disconnected cables will prevent the system from functioning properly, exposing your building to fire danger, and loose equipment can become airborne in high winds.

PREPARE FOR AFTER THE STORM

Even the best prepared roof can suffer some damage from a major hurricane. You may want to take steps beforehand to make any action after the storm easier. Consider scheduling a post-storm inspection before the hurricane hits, and be sure to document the condition of your roof. Many insurance policies raise deductibles on damage inflicted by named storms, so it’s a good idea to review your policy and budget for repairs if you can.

 

 

What to Do After the Storm Hits

INSPECT AND ASSESS

Check your roof damage. Pay special attention to vents and stacks, flashing, seams, joints, and equipment.

CHECK FOR DANGEROUS DAMAGE

Before letting anyone into your building, be sure no parts of the roof have been damaged to the extent that they may fall or collapse.

CHECK FOR LEAKS

Water is a persistent creature, and it can find its way through spaces imperceptible to a routine post-storm inspection. Be sure to check your building for signs of roof leakage in order to prevent mold or water damage.

DOCUMENT DAMAGE

Take photos of damaged areas on your roof. They’ll be extremely valuable during the claims process.

CALL YOUR INSURANCE COMPANY IF YOUR ROOF IS DAMAGED

If you have roof damage, you’ll want to get the claims process going as soon as possible, since you’ll likely be entering a very long queue of property owners who have sustained damage.

CALL A CONTRACTOR

Roofing professionals, too, will be very busy after a hurricane, so be sure to schedule repairs as soon as possible. Hire a contractor you trust—episodes of high demand like hurricanes often bring out unscrupulous and opportunistic sorts.

REPLACE? OR RESTORE AND PROTECT?

If your roof has sustained severe damage, you’ll have to make the decision of whether to replace or restore it. In some cases, such as if your roof has been structurally compromised, you’ll have no choice but to replace it. In many cases, however, restoration is a more sensible, economical, and sustainable option that can not only address immediate repairs but also protect your roof for decades to come.

 

Conclusion

Hurricanes are a serious and inevitable threat to people and property along America’s coasts. Major storms can cause billions of dollars in damage, and no part of your building is more exposed than your roof. But with diligent preparation, including regular maintenance and restoration, hurricanes can be withstood, and roof damage mitigated.

Talk with a Roof Restoration Expert

Topps® Products has been providing industry-leading roofing solutions to building owners and facilities managers for over 30 years.

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HOW TO CHOOSE THE BEST ELASTOMERIC ROOF COATING

HOW TO CHOOSE THE BEST ELASTOMERIC ROOF COATING

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HOW TO CHOOSE THE BEST ELASTOMERIC ROOF COATING


May 16, 2017

 

What is an Elastomeric Roof Coating?

An elastomeric roof coating is an elastic coating applied to a variety of roof types to protect and seal the underlying roofing material, help stop and prevent leaks, and limit future weathering. They are designed to move with your roof and be more forgiving rather than remain rigid, a quality that makes them especially durable. Some coatings are also designed to cool the building. The term elastomeric comes from the coating’s elastic quality to stretch and move.

Elastomeric roof coatings can be used on many industrial and commercial roof types such as metal roofs, concrete roofs, bitumen, modified bitumen or BUR roofs, EPDM roofs, or as a sealant over new PUF roofs.

 

When to Coat Your Roof

The best value from a roof coating comes when you apply it at the first sign of aging. By making needed repairs early, installing a full protective barrier at the same time, you create your “stitch in time that saves nine.” Wait too long and it is likely to cost you more. Too often, it costs you a new roof, at three or four times the expense of a roof coating, which could have been avoided by paying attention to early signals.

After reviewing all of the many elastomeric roof coatings on the market, how do you select the best quality and value roof coating for your needs?

 

Understand the Roof Restoration Process

Understanding the entire roof restoration process will help you to choose which elastomeric roof coating best suits your needs. Most every roof has conditions requiring more of a coating’s particular physical properties than it does of the others. It pays to compare all the physical properties because it only takes a weakness of one to result in failure. Some roof conditions, such as rust or leaks at seams or flashings, may make it necessary to apply specialized products in addition to a coating. If you believe your roof may need more than just a coating, we suggest researching roof restoration options. You can find out about Topps roof restoration systems here.

To learn more about the full roof restoration process, read our full guide and watch the video below:

 

Physical Properties to Consider in Elastomeric Roof Coating Purchases

When determining the best elastomeric roof coating to use on your roof, there are many physical properties that need to be taken into consideration.

Every roof is different in terms of construction, location, weather, sunlight, etc. It is impossible to ever know which physical characteristic will prove most important to the durability of your roof system, so we highly recommend you compare every one of them when you are reviewing the available roof coating products. The best roof coatings should perform well for you on every count.

Here are the properties to evaluate:

  • Elasticity/Elongation: Elasticity is the ability of a material to stretch. The ability to stretch and also recover means that a roof coating can move with the expansion and contraction of the roof as the temperature changes without cracking. Remember, only products which recover after being challenged are ready to take on the next needs. Bubblegum for example has tremendous elasticity. But because it has no recovery, stretching it only makes it thinner and ultimately a mess. The higher the elasticity, the more likely the product will endure your needs and fluctuations in the roof structure. When you couple this with recovery you get a product which can keep on performing for your needs.
  • Tensile Strength (new): Tensile strength measures the ability of the product to hold together and avoid breaking. Roof coating companies typically only report tensile strength when the product is new and in the lab. Spoiler: It always changes once outside exposure and aging begins.
  • Tensile Strength (aged): The tensile strength of a roof coating can deteriorate rapidly over time with exposure to the weather. We highly recommend that you select a manufacturer that can provide you with written, third-party tensile strength measurements of their coatings when they are aged and have been exposed to the elements. It provides you an added level of comparison. The aged measurements of the best roof coatings often beat those of competitors’ new product measurements. That signifies a serious difference in coating quality and value over time.
  • Perm Factor: The perm factor is the coating’s resistance to moisture vapor passing through it. A lower number shows less moisture can pass through it.
  • Moisture Gain by Weight: Moisture gain by weight measures the coating’s ability to absorb water vs repel water and protect the roof beneath. You want a roof coating that repels water away from the roof, rather than absorbing it into the roofing material which can accelerate aging and deterioration of the roof itself.
  • Peel Adhesion: Peel adhesion measures the ability of the coating system to remain adhered to the roof surface under adverse conditions. If your roof coating doesn’t stay firmly attached, then it can’t properly protect your roof.
  • Tear Resistance: The tear resistance of a coating is, just as it sounds, the resistance to tearing which can happen due to foot traffic, from roof movement, or from other shifts in the environment.
  • Reflectivity: Reflectivity measures how much solar heat is reflected away from the roof by the coating. A cool, reflective roof surface allows all building components to work more efficiently and reduces maintenance needs and premature roof failure caused by UV damage and thermal shock.

 

Comparing Elastomeric Roof Coating Performance

When choosing the right elastomeric coating option for your roof, there’s more to consider than just the coating’s particular properties. Some sealants perform better than others relative to industry standards. Comparing performance between brands can help you decide which option is best for your needs.

The chart below shows how Topps Seal® compares in performance against other alternatives based upon the ASTM Miami-Dade standard on some of the key properties for an elastomeric roof coating.

 

Roof Coating Standards Provide a Necessary Point of Reference

ASTM Miami-Dade standard

The American Society for Testing Materials (ASTM) supplies national standards for testing procedures of elastomeric roof coatings. This allows purchasers to have a reliable set of standards when evaluating the best elastomeric roof coating. This is an excellent starting point for asking questions of what you want used for your project.

Miami-Dade County, Florida, assigns to roof coating products what they consider to be minimal requirements for use in this challenging environment. In order to be approved for lawful use in the county, a product must undergo testing by a government approved 3rd party laboratory to ensure that it meets the county’s minimum standards (as shown under 100% Acrylic in the chart above).

The ASTM includes testing standards for elasticity, tensile strength, perm factor, moisture gain by weight, peel adhesion, and tear resistance. They stress that ALL of these characteristics hold equal importance when evaluating a roof coating. Having good results on just one element is not enough to use for selection criteria.

Selecting the best roof coating can have serious long-term implications, so at Topps, we actually recommend that you take your questions a few steps further than simply the ASTM standards, and focus on the entire package and how it might affect your outcomes. You can risk everything by choosing instead to focus on only certain features while overlooking the rest.

Consider real physical properties over the manufacturer’s claims. Only the former will provide you with maximum benefits. Make certain that the product you choose is the most desirable option for the range of conditions in your climate. Selecting a coating that can withstand any climate likely will be of benefit to you. Climates often involve various extremes during different seasons, and the more versatile and durable your coating, the better off your roof will be.

Third-party independent testing, beyond standards used only for marketing purposes, can be invaluable to you without costing you more.

Because Miami-Dade County Florida has what most consider to be the gold standard set of requirements for roof coating characteristics, where passage is required for legal use in those areas, it can be an excellent starting criteria. Miami-Dade has an incredibly complex set of potential weather conditions (think heat, high humidity, hurricanes, etc.) and thus, needs very high standards for performance in building materials. The cost difference for higher quality products, if there is one, will be negligible in the scheme of things.

In addition to having requirements for performance when new in the lab, Miami-Dade Country approved products also require roof coatings to be tested when they are aged. After a coating is aged, you can get a much better understanding of the rate at which it deteriorates and changes. This will tell you much more about its value than initial lab testing on a new product. Their reporting shows you how it compares.

Ask your vendor about the use of their products across various conditions, but also Miami-Dade standards. Are they approved for Miami-Dade county? Can they provide you with the results of tests conducted on their aged products after exposure to the weather? This information is critical to finding the very best roof coating product available. Your location may not be exactly the same, but it’s likely it can involve a variety of conditions including these. Avoid products having the weakest link in the chain among important physical properties.

ENERGY STAR® Recognition

Last, but not least, the ability of your roof coating to provide a cool roof is incredibly important. UV rays and thermal shock can cause serious damage and deterioration to a roof. A white elastomeric roof coating, having proven solar effective properties, provides protection against heat and therefore can also help to dramatically reduce the energy required to cool your building. We recommend seeking out products that carry the ENERGY STAR® mark to ensure that the roof coating product you are purchasing is providing you with these important cooling benefits.

Again, this is one component among a number that can be valuable to you. So consider the entire package. If your white roof coating degrades quickly over time it loses the energy and cooling benefits it initially offered. Consider those instead who also use CRRC Cool Roof Rating Council® for third-party verification on cool roof retention over time if this is important to you. Here again, coatings which diminish more quickly in cooling qualities typically offer less value in the other important physical factors above. You don’t want it to be the weak link in your “value chain”. CRRC reports this.

Reviews

Elastomeric Roof Coating Reviews

Outside of some highly specialized venues, it can be difficult to find detailed reviews of elastomeric coating products. How do you decide which products hold up best on metal roofs? Or which sealants are right for your roof conditions?

One way to evaluate an elastomeric coating product is to review 3rd party independent reviews such as Cool Roof Rating Council®, MiamiDade County (approval carries verification), and Energy Star®. These give you facts.

Check to see that the manufacturer actually recommends their products for your roof type and be sure all products recommended for your project are included. A contractor making a statement that in their opinion only some products are required, is simply that—their opinion. A qualified contractor offering a warranty or promise will have at least as many years’ experience supporting their claims or will follow guidelines of a manufacturer who does. Field application case studies or testimonials can be useful, but realize that these always are hand selected.

You can review some examples of Topps elastomeric roof coating options here.

You may also benefit from reading about the experiences of others who have used particular products themselves. There are few better sources of product information than certified independent test results verifying the outcomes, together with customers who have used elastomeric roof coatings whose conditions are identical to yours. A safe bet afterwards is to factor in that your situation may require more protection than others, and to choose installers using products that can produce the best results. Studies have shown many products have little to no cost difference, and with ones that do, the better product often provides the better savings and value.

You can read what customers have to say about Topps elastomeric coatings:

 

Conclusion

Selecting an elastomeric roof coating is an important decision that can have a significant impact on the longevity of your roofing project and on the roof itself. Be sure when you select a product that you ask questions about all of the physical characteristics of the product and how it is rated by third parties like ASTM and CRRC.

Go in wise. Know that comparing literature reports of a product new and in the lab are good as a starting point. Be sure to dig deeper to ensure the that you select the best roof coating for all of your needs. The coatings that perform better on more areas are more likely to meet your needs over time.

Have questions? Feel free to contact Topps for information on roof coating standards and how our products stack up.

Reduce Your Energy Bill with Elastomeric Roof Coatings

Topps white roof coatings reflect the sun and keep your roof much cooler. See how our client saved over 24% on their AC bill.

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IS THERE A SEAMLESS LIQUID RUBBER LINER FOR GUTTERS THAT’S ALSO EASY TO APPLY?

IS THERE A SEAMLESS LIQUID RUBBER LINER FOR GUTTERS THAT’S ALSO EASY TO APPLY?

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IS THERE A SEAMLESS LIQUID RUBBER LINER FOR GUTTERS THAT’S ALSO EASY TO APPLY?


February 28, 2018

Topps GutterGuard® is designed to stop rust and seal gutters and goes on easily with an ordinary paint brush. This gutter sealant is water-free, making it more water repellant. After cleaning and preparing the gutter, pour in a ribbon of GutterGuard and brush it about. GutterGuard self-levels, making for a nice neat, clean new lining when finished.

The specially compounded hard rubber resists damage from sticks etc., helps keep leaves and dirt from sticking and encourages good flow.

To buy online, click here: Best Gutter Sealant

Learn More About GutterGuard

Repair your gutters and stop leaks today.

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STOP METAL ROOF LEAKS!

STOP METAL ROOF LEAKS!

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STOP METAL ROOF LEAKS!


February 28, 2017

Constant freeze/thaw cycles cause expansion and contraction on metal roofs. This expansion and contraction loosens the seams and the fasteners, allowing moisture (water) to enter these critical areas. Negative pressure also allows the moisture that settles on the roof to be sucked in through these openings.

The solution: Topps RivetGuard! Tighten all fasteners and apply this rubberized sealer to the head of each fastener as well as coating all seams to end leaks.

Find out more about the benefits of elastomeric roof coating

Read our full FAQ section for more information.

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