Trafficable flat roofs

On trafficable flat roofs, continual vehicular traffic and exposure to the elements — from freezing temperatures to sweltering heat — mean the materials used must be fit for purpose. This makes it crucial to have a build-up design capable of performing specific functions.

Since this kind of roof has to withstand high loads, both static and dynamic, superior compressive strength and mechanical protection of the waterproofing layer are key focus areas. Drainage is another aspect to be factored into the design: rainwater can seep into the underlying layers and damage them, so we need to ensure that water is drained off the roof properly.

Products like studded membranes and drainage geocomposites in the shape of monofilament structures or geonets provide the drainage, reliability and structural integrity required, even when dealing with high loads, while the nonwoven geotextile they are laminated to provides filtration.