Before applying a new roof coating, all repairs should be completed to the structure. Sheet metals must be repaired, protrusions must be removed, and wet insulation must be removed from past leaks. This step will prevent the roof coating from failing to seal the problems in the roof. Cleaning the roof is straightforward, but it is still important to keep the surface clear of debris and dirt. Power washing is recommended, but any other method will do.
Acrylic roof coating
When choosing a commercial roof coating, you should consider how easy it is to apply. Because it’s a single component, acrylics don’t require two-component mixing. Installation teams can complete the process quickly and with minimal disruption. And because they rarely have to deal with equipment issues, they can be more efficient and productive. While some types of acrylic roof coatings are best for flat or low-sloped roofs, others are more suitable for metal or gravel roofs.
An acrylic elastomeric roofing coating looks and feels like paint in a can and is easy to apply with a roller. This type of coating is unique because it has performance criteria different than a standard paint. While a typical house paint has a viscosity of about five millimeters, an acrylic elastomeric roof coating is at least sixty mils thick. Unlike standard paint, elastomeric roof coatings must withstand high foot traffic and ponding water in a variety of environments.
Before applying an acrylic roof coating, make sure your roof has all of the necessary repairs. If you have protrusions, fix them and remove any wet insulation from leaks in the past. This way, any leaks you may have will be sealed by the coating. You’ll also want to clean the roof, which is pretty self-explanatory. Power-washing is the recommended method, but any other method will do as long as you can keep it clean.
Butyl roof coating
A Butyl elastomeric roofing coating is a highly reflective, waterproofing layer applied to a commercial roof. This type of roof coating is applied in more than one coat, ensuring maximum coverage. This type of roofing system requires periodic maintenance to maintain its seal and prevent damage. During the lifetime of your roof, butyl should be inspected at least twice a year. In addition, periodic maintenance helps to prevent costly problems down the road.
Butyl is a solvent-based polymer, which possesses high elongation and tensile strength. These properties allow it to resist impact and maintain its waterproofing qualities, preventing leaks from forming. Butyl roof coatings have outstanding thermal insulation properties, which makes them an excellent choice for commercial buildings. Butyl is also a great choice for low-sloped roofs, as it withstands ponding conditions.
Although Butyl has high UV resistance, it also lacks color stability, makes it difficult to spray, and is difficult to apply to large areas. However, it is one of the most expensive commercial roofing solutions available. Silicone roof coatings are preferred for their excellent UV protection and their ability to resist ponding water. They are less likely to erode over time, making them an economical choice for high-profile buildings.
Water-based roof coating
There are three types of roof coatings available: solvent, water-based, and 100 percent solids. Solvent systems use an organic solvent as the carrier for the coating, which evaporates to form a membrane on the roof. Water-based commercial roof coatings, on the other hand, use water as the carrier. Solvent-free coatings are not as common as water-based ones. In two-part coatings, two liquid components are premixed together and applied by airless spray units. These coatings are typically dry almost immediately due to chemical reaction.
However, water-based coatings have some drawbacks. One major disadvantage of these products is that they are sensitive to water. They should be completely dry to the touch and cured before another coat is applied. Water-based coatings are prone to blistering and adhesion problems if water remains on them after application. Regardless of the type of coating, water-based coatings are generally less expensive than solvent-based ones.
Another type of water-based commercial roof coating is acrylic. Acrylics are highly reflective and UV resistant. They are also easy to apply and maintain. Another important feature of an acrylic roof coating is that they are white. White roofs reflect the sun’s rays and lower indoor temperatures, which means less energy bills. They are best used on low-sloped commercial roofs. However, acrylic roofs do not last as long as other types of roofing materials.