If you want to extend the life of your commercial roof and postpone the expense of a new roof for as long as possible, then a roof coating could be the solution. A coating can be applied to most types of commercial roofs, including metal and membrane roofing. Since there are different types of roof coatings, you may need advice to help you choose the right type for your building. Here are three options to consider.
1. Acrylic Provides UV Protection
An acrylic coating might be a good choice if your roof gets full sun many days of the year, since it is good at blocking harmful UV rays. This might also have the effect of keeping your building cooler and lowering your energy costs in the summer.
Acrylic roof coatings don't do well with ponding water problems. If your roof doesn't have an effective drainage system and you deal with ponding water regularly, your roofer might suggest a different type of coating.
2. Polyurethane Stands Up To Impacts
A strong point of polyurethane is that it's durable enough to stand up to foot traffic. If you have equipment on your roof that needs regular service, then you may need mats or other protection to prevent punctures or damage to the coating and roofing underneath. You may also want a polyurethane coating so your roof has a tougher surface.
The extra protection might be worth it for the peace of mind that your roof is at a lower risk of being damaged by workers or hail strikes. Polyurethane is a durable type of coating that resists UV fading.
3. Silicone Withstands Water Ponding
Silicone roof coatings are popular because they are a good solution for ponding water. The silicone creates a watertight seal on your roof that stands up to rain and puddles. Silicone is also effective at reflecting UV rays, but since the coating holds dust, dirt, and grime as it ages, it may lose some of its UV protection unless the roof is washed occasionally.
Like most other roof coatings, silicone can be applied on spray foam, membrane, and metal roofing. One downside to silicone is that it is more expensive than some of the other coatings, but your roofer may still recommend it because of the way it isn't harmed by ponding water.
When you are talking to your roofing contractor about the type of roof coating to have applied, consider the qualities you want from the coating. A coating can repair your roof, make your roof last years longer, help with energy savings, deal with drainage issues, and protect against UV damage. You may also want a coating that has an attractive appearance and color. Your roofer can help you match the roof coating to your needs and to your budget so you're happy with your choice.