Whether your flat roof needs to be coated or replaced a professional evaluation will help you determine the best solution. A roof coating is a fluid-applied membrane that seals cracks and seams, preventing water, sunlight (UV) and impact damage.
Henry offers low VOC and high-solids silicone roof coatings, such as Tropi-cool 100% and viral white acrylic. Tropi-cool creates a strong chemical bond that’s rain-safe in just 15 minutes, while viral white requires 48 hours.
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Polyurethane
Urethane is one of the best flat roof coating options. It withstands the daily thermal movement of structural expansion and contraction to provide long-lasting protection. It can also withstand the damaging effects of ponding water and UV degradation.
Urethane roof coatings come in two different types: aromatic and aliphatic. Aliphatic is often used as a top coat and provides a higher level of UV protection than aromatic. It is also dirt-resistant and retains color for a longer period of time.
Building owners save money with urethane coatings because the reflective aliphatic top coats prevent heat and sunlight from damaging the roof. This enables them to lower energy costs and maintain comfortable indoor temperatures year-round.
Silicone
If you’re looking for the best flat roof coating that can withstand long-term UV rays and moisture, then silicone is your best choice. This type of roof coating is often used as a sealant and can be applied to metal roofs, spray foam roofs, or BUR/torchdown built-up roofing. Silicone can also be used to patch leaks, repair cracked or loose seams, and to reinforce any flashing details that are exposed to the elements. This roof coating can be slippery, so it’s important to use a safety walkway or apply a non-slip additive.
Henry offers a high-end white elastomeric roof coating with superior reflective properties and durability that can last for years. This commercial roof coating withstands ponding water, is easy to apply, and comes with a 10-year warranty. With regular inspection/maintenance and clearing of accumulated debris from ponding areas, this roof coating can extend your flat roof’s life by up to 20 years. It’s ideal for building owners that are looking for energy efficiency and increased comfort.
Acrylic
Acrylic roof coatings are water-based and provide high reflectivity, reducing the amount of heat absorbed by your flat roofing system. This helps keep your building cool, reduces energy costs and extends the lifespan of your roofing system.
Polymethyl methacrylate (PMMA) is made through a polymerization process and is part of the plastic family. It’s a clear plastic that can be used in a variety of applications.
Similar to silicone, acrylic is an elastomeric roof coating that can stretch and adapt to the changes your flat roof experiences over time. These coatings are great for areas that don’t experience significant ponding water. They also tend to lose some of their mil thickness after weathering. However, with proper maintenance, these roof coatings can last 15-20 years.
Asphalt
Asphalt is a popular roof coating option, especially for those on a budget. It is durable and provides good protection against the elements. It withstands ponding water and with regular cleaning and inspection can last indefinitely.
It is typically applied as a base layer for other elastomeric roof coating systems that provide superior reflectivity, UV stability, and elasticity. This type of flat roofing system can be installed on a variety of surface types including tar paper, rolled asphalt, and polyester fabric.
Some types of flat roofs don’t work well with a roof coating, like asphalt shingle roofs because the uneven shingles don’t allow for a seamless roof coating application. It’s important to have a professional roof evaluation done before you decide to coat or replace your flat roof. That way, you can be sure you’re getting the most out of your roof coating.
