Flat Warm Roof Construction Detail

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.

Flat warm roof construction detail.

There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. It must provide adequate protection against the elements keeping the buildings structure and interior dry. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off. Flat roof details and information relating to insulating a flat roof.

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. The construction of the flat roof is similar to that of the timber upper floor. For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. 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.

A flat roof must be strong durable and stable throughout its lifetime. Details both in 2d and 3d to give a clear understanding. In a warm flat roof construction the insulation is positioned above the structural deck and no ventilation is required. In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm.

Warm roof systems. Types of flat roof construction warm and cold flat roofs. This usually keeps the deck warm. Others would treat even steeper pitches as flat roofs.

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 is the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction. 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. This is placed over the.

Hot tar and gravel. Warm roof build ups can be installed on most modern construction material types such as concrete timber and timber based sheets. Depending on the type of roof you are considering here s some technical details you may find useful. The 3 most common materials used for flat roof construction.