Warm Deck Pitched Roof Construction

Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building.

Warm deck pitched roof construction.

There are typically two different ways to insulate a roof a warm roof and a cold roof. Ventilation is required for these roofs. Inclined along the line of rafters warm roof or positioned within the roof. The position of the insulation can be wholly above or partially between and above the rafter.

This results in the structural deck and its supports being at a temperature closer to that of the building s interior. Alternatively it can be positioned between the rafters or partially between and below the rafter. There is no need for additional ventilation. It is usually the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction.

Introduction warm cold roofs this guidance offers guidance on the difference benefits between warm and cold roofs. In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm. In a warm pitched roof construction the thermal insulation is placed in the rafter line. On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure.

In pitched roof construction thermal insulation can be placed horizontally at ceiling level cold roof. Warm roof designing buildings wiki share your construction industry knowledge. In building construction roof pitch is a numerical measure of the steepness of a roof. Guidance advice on warm cold.

In a warm roof construction with no height restrictions insulation levels can ensure that no condensation occurs within the build up. Where the insulation is placed above the structural deck warm deck and either above or below the waterproofing. The membrane is then attached to the insulation. This is as opposed to a cold roof in which the insulation is below or within the roof.

However the presence of insulation below the deck in a hybrid roof brings the dew point down potentially threatening the roof structure and spaces below it.