Flat Roof Insulation Boards With Ply

Also consider using alternative rigid pir boards with external quality plywood boards added separately.

Flat roof insulation boards with ply.

And then install 1 2 minimum recommended is 5 8 or thicker plywood on top of battens. Run vertical 2 3 boards battens over roof sheething 16 o c. Celotex td4000 flat roof plywood bonded boards celotex have replaced this range. Celotex td4000 is purpose designed for use in light traffic flat roof applications.

The most efficient and best insulation used is rigid foam polyiso. Celotex td4000 pir insulation for light traffic flat roof applications. Usually homeowners spend about 25 of the total cost to install a flat roof on high quality insulation. Cost of rigid foam board insulation.

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. Iso is available in a range of thicknesses that come in increments of 1 inch. Is a three in one product to provide deck vapour. A flat roof should always allow for water channelling and drainage to prevent issues such as ponding.

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.