Warm Flat Roof Thickness

As opposed to old built up felt roofing with joins new single ply waterproof membranes are now most commonly used.

Warm flat roof thickness.

Discussion in building started by macadonald 29 aug 2012. Cold roofs and warm roofs. For guidance on roof insulation please contact us on 44 01257 488 000. Warm deck flat roof the type of insulation for this is usually of a rigid type and the thickness will vary depending on the manufacturer s specifications.

Find warm flat roof cold flat roof insulation solutions at iko polymeric. There are two types of flat roof. These are can be supplied with rebated edges which interlock reducing the risk of uplift. Cold flat roofs are typically avoided as you d need to install ventilation which can prove problematic for many reasons relating to space labour costs etc.

The insulation can be adhered mechanically fixed or loose laid. My preference is a warm roof construction with grp. This is placed over the roof joists and a board normally external ply is laid on top. 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 flat roofs do not need to be ventilated as the insulation is. They lose loads of heat and are prone to leaking causing the materials to deteriorate. The insulation material for a warm flat roof should. The insulation for a warm roof will usually be boards of extruded polystyrene or rigid compressed boards of glass fibre or rock fibre.

100mm celotex is what building control always want from me for flat roofs and garage conversions posted 5 years ago fallsoffalot. As the single ply roofing association spra points out this type of flat roofing is strong durable completely sealed and usually lasts at least 25 30 years. 22 aug 2010 messages. This is placed over the roof joists and an board normally external ply is laid on top.

A flat roof where the insulation sits below the waterproof membrane and above the structural deck is a warm roof deck. The vapour control layer is above the decking but below the insulation. Insulation in a warm roof. The insulation is immediately below the waterproofing layer.