Foam roofing is an excellent option for commercial buildings. It’s applied as a liquid, forming a seamless layer around any roof penetrations. The foam acts as a self-flashing material, so there’s no need to purchase flashing materials separately. The durability of foam roofing makes it a good choice for buildings that have high number of perforations. However, foam roofing does need to be installed under ideal weather conditions. Additionally, the roof must be well-prepared for the foam to apply evenly. Also, rainwater puddles will damage foam roofing.
Compared to traditional tar roofing, foam roofing is easier to install. It doesn’t require a blowtorch to apply, and it has a high insulation R-value. Additionally, foam roofing can help buildings stay within the weight limits of their structures, which can be especially challenging in older structures. It is also useful for buildings with heavier snow loads. Foam roofing is a good option if you want to save on energy costs.
The installation of foam roofing involves the application of two chemicals, polyol and isocyanate, at the site of the building. After the mixture is sprayed over the surface, it expands up to 30 times. This layer of foam is up to 1.5 inches thick and protects the building from ultraviolet light, fire, and moisture. Once the foam roofing is in place, the top coat is made of elastomeric or silicone materials that provide additional UV protection.