Flat Roof Insulation Boards With Ply

Cost of rigid foam board insulation.

Flat roof insulation boards with ply.

Ponding can lead to premature failures in the waterproofing system and the need to refurbish an area or the entire flat roof before the end of its intended design lifetime. And then install 1 2 minimum recommended is 5 8 or thicker plywood on top of battens. 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 flat roof plywood bonded boards celotex have replaced this range.

A flat roof should always allow for water channelling and drainage to prevent issues such as ponding. Run vertical 2 3 boards battens over roof sheething 16 o c. Celotex td4000 pir insulation for light traffic flat roof applications. Is a three in one product to provide deck vapour.

Please consider celotex crown fix. It accounts for over 60 of all installs. Celotex td4000 is purpose designed for use in light traffic flat roof applications. Usually homeowners spend about 25 of the total cost to install a flat roof on high quality insulation.

Also consider using alternative rigid pir boards with external quality plywood boards added separately. The most efficient and best insulation used is rigid foam polyiso.