A silicone coating is one of the most universal types of coating there is, being flexible, UV-resistant, resistant to ponding water, reflective, and durable. Silicone is ideal for use over existing low slope roof systems like modified bitumen, TPO, PVC, foam, and more. It is applied in multiple passes over the roof in order to create a desired thickness – the thicker the silicone, generally the longer it’ll last. It creates a seamless coating over your entire roof that will not allow the elements in.

Here at M&M Roofing, we prefer using IB Silicone for commercial roofs.

Silicone must be applied while your current roof is still in decent condition, otherwise it may be too late for this solution. If you have a roof system with seams, such as TPO, PVC, modified bitumen, or EPDM, we will want to treat the seams with a seam sealant before the silicone is installed to prevent those seams from coming apart in the near future.

One downside to silicone is that once it’s applied, no other types of coatings can be used over it since it’s too smooth and won’t hold them. However, if silicone is applied properly and before a roof degrades too much, it can last upwards of 20 years. The other downside is cost – silicone coatings can be costly to purchase and install, but still not as much as an entirely new roof.