Warm Roof Construction Eaves Detail

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.

Warm roof construction eaves detail.

Download our standard details please fill in your details below to access our full list of standard details for sika sarnafils range of systems 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 insulation is placed below the waterproof covering and is either mechanically fixed or bitumen bonded on to the top of the deck. A warm flat roof is formed by placing a layer of insulation over the top of the roof structure. The construction of the flat roof is similar to that of the timber upper floor.

Warm roof to cable duct. Warm roof to outlet with sump gutter. Inverted warm deck roof. These are some of the reasons why a cold roof can be cheaper as ridged warm roof insulation tends to be more expensive a warm roof is sometimes the only option when it is difficult to get the required cross ventilation.

Types of warm deck roof. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Steve from london flat roofing explains how warm flat roof construction works in this excellent short video. Insulating a pitched roof above the rafters is the common method chosen for new builds and re roofing existing detached buildings as it provides superior thermal performance for the building.

The sandwich warm deck roof is the most common type of flat roof. For a simple duo pitch roof bs 5250 specifies sufficient ventilation as being. Warm roof to hot service penetration. Sometimes we get asked why choose a cold roof or warm roof.

A notch is taken out of the rafter known as the birds mouth. Warm roof to outlet. Eaves detail the eaves detail shows where the roof members and coverings meet the wall of the dwelling. Warm roof to service penetration with pipe boot.

Flat roof details and information relating to insulating a flat roof. Warm roof systems. The cavity is closed with a proprietary cavity closer. Warm roof ventilation specification.

Warm roof to parapet outlet. 25mm at eaves on each slope and 5mm at ridge. Ventilated batten void warm roof separating wall 3 23 timber frame wall junction outward corner 3 24 timber frame wall junction inward corner construction details the examples are shown with u values. The wallplate is secured to the internal wall separated by dpc.

Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building. The wallplate is then used to secure the rafter to. 3 21 timber frame pitched roof. If ridge or eaves ventilation is not possible ventilation tiles can be used at high or low level to achieve the required airflow.

Details both in 2d and 3d to give a clear understanding. Cold roof separating wall 3 22 timber frame pitched roof.