Warm Deck Flat Roof Eaves Detail

To use epdm for a warm deck flat roof construction solid closed cell roof insulation such as kingspan or celotex should be placed on top of the roof deck rather than in between the rafters.

Warm deck flat roof eaves detail.

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. The insulation is tapered to provide a fall to the roof to enable water to run to the water outlets. Due to the insulation being over the top of the roof the timber structure beneath is warm which is why the term warm roof is formed. This type of construction has the insulation above the roof deck thus keeping the deck warm.

The insulation is immediately below the waterproofing layer. This enables the temperature of the structure and the deck to be kept close to the temperature of the inside of the building hence warm. The insulation is placed below the waterproof covering and is either mechanically fixed or bitumen bonded on to the top of the deck. This is usually the most satisfactory construction for domestic properties as it avoids the need for ventilation of the roof.

Warm flat roofs inverted flat roofs green flat roofs. Warm roof systems benefit from the insulation sitting above the deck. Steve from london flat roofingexplains how warm flat roof construction works in this excellent short video. For this content to be displayed you need to accept all cookies in the cookie settings and confirm your selection or by clicking the allow all button.

The sandwich warm deck roof is the most common type of flat roof. The vapour control layer is above the decking but below the insulation. Please fill in your details below to access our full list of standard details for sika sarnafils range of systems. This is placed over the roof joists and a.

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. In a warm roof the thermal insulation is immediately below the membrane finish the structural deck any voids and the ceiling are at a temperature close to that of the building s interior condensation control is achieved by using a vapour control layer vcl on the warm side of the insulation.