A warm flat roof or a built up roof bur is one where all the insulation is above the joists deck making them part of the warm fabric of the building.
Warm deck roof boards.
Insulating a timber deck flat roof can be done using warm deck construction method or cold roof construction method.
The insulation is immediately below the waterproofing layer.
The vapour control layer is above the decking but below the insulation.
To insulate a flat roof with a concrete deck we recommend a warm deck construction method where the vapour control layer is sandwiched between the concrete deck and a layer of rigid pir insulation boards.
Celotex td4000 is purpose designed for use in light traffic flat roof applications.
We would like to show you a description here but the site won t allow us.
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.
This video will demonstrate how to install a cure it grp waterproofing system in a warm roof build up.
The concrete deck can offer greater speed of roof construction which is an important consideration on many larger commercial projects.