The main function of a flat roof is to provide a watertight cover to the building. ROCKWOOL flat roof insulation boards are engineered to deliver high mechanical strength and by lasting performance maintain roof integrity. They meet the various requirements for stability, fire safety, thermal and acoustic performance, and special products are able to carry permanent loads, multi-usages on the roof and load traffic. Bespoke cut-to-fall solutions are available for efficient rainwater removal.