Inverted Roofs

p>Our Inverted Roof System offers many advantages over traditional warm and cold low pitched flat roofs. Not only is the system completely cold applied, it is also totally seamless – eliminating the risk of leaks due to failure of joints. And because the waterproofing is located at the bottom of the system it can be expected to have a life in excess of that obtained in an exposed situation as it is protected from mechanical damage, solar radiation, UV degradation, and temperature extremes.

 

Liquid Plastics Inverted Roofs offer protection from condensation risk and freeze/thaw cycles because the waterproofing is located on the warm side of the insulation. A completed Inverted Roof will also be resistant to foot traffic and exhibit a high compressive strength.

Unlike traditional inverted roofs, our system includes the completely seamless Root Resistant Decothane waterproof membrane, which is proven to resist penetration by even the most aggressive roots. Traditional systems can be subject to failure because the waterproof layer allows water ingress through joints, seams, and detail areas. It is therefore particularly important to avoid this scenario in inverted roof situations where the waterproof layer is below the surface and not easily reachable should problems occur.

Our system also includes Liquid Plastics Inverted Roof Board – an extruded polystyrene board that complies with the Montreal Protocol and has zero Ozone Depletion Potential. Where gravel ballast is used as a finishing option, Liquid Plastics offers a Filtration Layer for installation over the insulation to prevent the gravel from being washed down below the insulation where it may abrade the waterproofing layer or block rainwater outlets.