Flat Roof Insulation Boards With Ply

Celotex td4000 pir insulation for light traffic flat roof applications.

Flat roof insulation boards with ply.

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. Usually homeowners spend about 25 of the total cost to install a flat roof on high quality insulation. 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.

This will create ventilation and separation between attic roof substate and the roof itself. 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. It accounts for over 60 of all installs.

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. The most efficient and best insulation used is rigid foam polyiso. Also consider using alternative rigid pir boards with external quality plywood boards added separately. Celotex td4000 is purpose designed for use in light traffic flat roof applications.

Cost of rigid foam board insulation. Is a three in one product to provide deck vapour.