A traditional flat roof construction would involve creating a fall on the deck, which could be screed to fall, timber firrings or metal at a tilt. Tapered insulation removes the need for this and instead creates the fall in the insulation. This is the main benefit of using a tapered system over a more traditional method - the system itself is designed to ensure no water ponding on the roof, avoiding issues like slip hazards, stress on waterproofing membranes and a poor aesthetic appearance.
Other benefits include:
- By using tapered roof insulation, you could achieve a saving of up to 26.9% over traditional methods.
- Tapered insulation is as little as 1.5% the weight of screeds, therefore allowing a cheaper deck structure.
- Tapered roofing can be created based on an area weighted U-value or an average U-value across the roof, further reducing the cost.
- Tapered insulation eliminates drying out time, which is needed for screed to falls, which means it is usually the faster option and contractors do not have to rely on a third party to create falls correctly.