6 Laying methods and fixing of the roof waterproofing
The waterproofing membranes can be fixed against wind uplift by ballast, mechanical fastening or bonding. Ballast and mechanical fastening also fix build-up layers under the waterproofing membrane, which can thus be loose laid. Bonding of the waterproofing membrane is only possible if the build-up layers are stationary, and on substrates, which are suitable for the corresponding adhesive. 6.1 Wind loads at the flat roof The required mass (weight) of the ballast, amount of mechanical fasteners or amount of adhesive for the expected wind loads must be calculated with regard to the location (wind zone, height, building category), the dimensions of the building, the […]