If you’re in the market for a new roof for your commercial building, you may be wondering what type of commercial roof coating is best. Before you start looking for a commercial roof coating, you’ll need to make some repairs first. Repairs will include fixing sheet metal, fixing protrusions, and removing wet insulation from past leaks. Then you can apply the roof coating and seal up all of those problems. Finally, you’ll need to clean your roof. This step should go without saying, but a power-washer will work. Otherwise, any method of cleaning the roof will work as long as it’s clean.
The high concentration of Butyl rubber used in premium-quality commercial roof coatings makes them exceptionally flexible and durable. Butyl is a naturally occurring organic compound that was discovered by Michael Faraday in 1825 and was later developed by William Sparks and Robert Thomas. Polymer Corporation and ExxonMobil now produce the majority of butyl around the world. Its seamless properties make it an excellent choice for roofs because of its exceptional resistance to most weather conditions. When temperatures increase, butyl rubber stretches, and returns to its original shape when temperatures drop. Therefore, butyl is very durable and can last for many years.
Butyl is impermeable to air and is a flexible, durable material that can withstand ponding on low-slope roofs. However, it is not perfect. This material is highly harsh on the environment, so some contractors choose to use other types of elastomeric coatings instead. However, this material does not only improve a roof’s durability, but it also contributes to energy savings.
The benefits of acrylic roof coating are many and include: ease of application, waterborne nature, and limited toxicity. Because it’s a single component, acrylic roof coating is essentially a house paint. It can also be cleaned with water and airless spray units can rinse the coating with ease. In addition, acrylics do not have volatile organic compound constraints, so there are no red labels and minimal toxicity. The white color of acrylic roof coatings reduces the amount of heat that reaches the building and therefore, reduces the need for air conditioning.
Another benefit of an acrylic roof coating for commercial buildings is its ease of installation. The first step in installation is to make sure the roof is a good candidate for the coating. Make sure the roof has sufficient slope and does not have standing water 48 hours after rainfall. It also helps to check if the roof is not too steep to prevent water from collecting on it. After preparing the roof for coating, the next step is to install primer.
A silicone commercial roof coating is a durable and reflective material that will extend the life of an existing roof. It is UV and water resistant and is able to respond to moisture, creating a highly reflective surface that will reduce energy costs by up to 35 percent. The monolithic membrane of this material will withstand extreme temperatures, and it is highly resistant to staining and mold. It can be applied to almost any plane surface.
One of the major disadvantages of this material is that it is prone to trapping dirt and airborne dust particles. When these particles accumulate, they weaken the reflective properties of the coating. The buildup will increase the amount of heat that is absorbed by the roof, negatively impacting cooling costs and the temperature of internal buildings. Pressure washing will eliminate this problem and most contractors will include the cost of cleaning in their proposals. However, cleaning is not a DIY project, so it is important to have a contractor perform the inspection before the coating is applied.
Despite being more expensive than other coatings, polyurethane commercial roof coatings have several advantages over their aliphatic counterparts. This type of coating creates a more durable barrier against ultraviolet rays, retains its color, and can extend the life of the roof. Polyurethane also slows the aging process of roofing systems, adding years to the company’s investment. Compared to other roofing coatings, polyurethane roofs can extend a building’s lifespan by as much as 10 years, or more!
The most important factor in polyurethane commercial roof coatings is preparation. Before polyurethane foam roof coating is applied, the roof surface must be completely clean and free of contaminants. Before applying polyurethane foam roof coating, the contractor should conduct a thorough moisture survey to determine areas that are prone to ponding water. Additionally, the contractor should replace damaged roofing membranes and insulation with the existing specified materials. Finally, all air intake vents and roof drains should be clear of debris to prevent overspray.