Flat Roof Insulation Boards With Ply

Perlite board insulation cover board per inch of thickness.

Flat roof insulation boards with ply.

A flat roof should always allow for water channelling and drainage to prevent issues such as ponding. The most efficient and best insulation used is rigid foam polyiso. Rigid roof insulation board. Usually homeowners spend about 25 of the total cost to install a flat roof on high quality insulation.

Celotex td4000 flat roof plywood bonded boards celotex have replaced this range. Is a three in one product to provide deck vapour. Modified bitumen metal roof and single ply roof systems and utilizes an environmentally compliant blowing agent that provides high thermal insulation performance. That is easy to install and cut builds slope into an otherwise flat roofing system allowing water to drain freely off the roof.

Run vertical 2 3 boards battens over roof sheething 16 o c. This will create ventilation and separation between attic roof substate and the roof itself. Using insulation board in a flat roofing insulation build up is a widely accepted industry standard as it s one of the best weight bearing insulation types. Whether the flat roof being installed will be walked on or not flat roof insulation board typically has a hard faced surface and good compressive strength both for extra stability and.

Celotex td4000 comprises a polyisocyanurate rigid foam insulation core with a thermal conductivity of 0 022 w mk and low emissivity aluminium foil facings on both sides bonded to a layer of 5 5mm wbp exterior grade plywood. Celotex td4000 is purpose designed for use in light traffic flat roof applications. Also consider using alternative rigid pir boards with external quality plywood boards added separately. Cost of rigid foam board insulation.

And then install 1 2 minimum recommended is 5 8 or thicker plywood on top of battens. Polyisocyanurate insulation board per inch of thickness. Plywood roof sheathing 15 32 inch thick approximate weight. Celotex td4000 pir insulation for light traffic flat roof applications.

Saint gobain insulation uk manufacture and supply glass mineral wool slabs and rolls along with rigid polyisocyanurate pir boards that can be considered suitable for a wide range of applications across flat roofs whether you re looking to insulate at joist level or above the roof deck in your flat roof construction. Apa the engineered wood association. Please consider celotex crown fix. Our range of high and optimum performance flat roof insulation products are suitable for use in a range of flat roofs.

It accounts for over 60 of all installs.