Flat Warm Roof Construction Detail

In a warm flat roof construction the insulation is positioned above the structural deck and no ventilation is required.

Flat warm roof construction detail.

The 3 most common materials used for flat roof construction. The construction of the flat roof is similar to that of the timber upper floor. In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm. It is the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction.

This is placed over the. Flat roof details and information relating to insulating a flat roof. Hot tar and gravel. A flat roof must be strong durable and stable throughout its lifetime.

There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. Flat roof u value 0 18 w m2k 2 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. Details both in 2d and 3d to give a clear understanding. The definition of a flat roof according to bs 6229 is having a pitch less than 10 o to the horizontal however some in the industry would consider up to 15 o as their definition of a flat roof.

Others would treat even steeper pitches as flat roofs. Warm roof systems. This usually keeps the deck warm. Throughout the course of the year the roof deck and all below it is kept at a temperature close to that of the inside of the building therefore the roof structure is protected from extremes of hot and cold lessening the.

It must provide adequate protection against the elements keeping the buildings structure and interior dry. Flat roof types. Depending on the type of roof you are considering here s some technical details you may find useful. They can be built up from profiled metal decks as the insulation selected would provide enough rigidity to span the open sections of such decks.

A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less. For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. Flat roof construction can come in the form of a warm roof or cold roof depending on the requirement of the owner and architect as they relate to the building regulations regarding heat loss and insulation. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls.