commercial roofing waterproof vs coatingRoof Coating and Weatherproofing

Not all roof coatings are designed to be weatherproof; some are just reflective, protecting the roof against UV radiation and maintaining a nice indoor thermal comfort.

Weatherproofing, on the other side, suppose the application of a fully reinforced layer that provides the roof the strength to seams, blisters, and splits, as well as the contraction and expansion stresses. Roof coatings that are not reinforced are more than 8 times weaker than reinforced systems. Although both of the Parker roofing solutions protect the roof`s integrity and structure in their own way, weatherproofing can work as a standalone roof system; reflective coatings cannot.

Weatherproofing a flat roof can be performed in three ways, depending on your budget, the size of the roof and other factors:

Using reinforced bitumen membranes (laying down 2-3 layers of the material, bonding everything together by hot bitumen and combine the coating with a polyester carrier)

Using liquid waterproofing such as glass-reinforced plastic that uses rigid polyester resin combined with glass fiber reinforcement. Fleece liquid membranes are a version of liquid waterproofing, featuring liquid resin and fleece reinforcement. Other systems commonly applied are acrylic, polyurethane, and flexible polyester systems that are rather used in the roof repair/ maintenance process because they are not always reinforced.

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