Warm Roof Construction Flat Roof Details

Construction studies drawing detail showing how to draw a flat roof warm deck construction detail to a scale of 1 10 with a short introduction highlighting t.

Warm roof construction flat roof details.

Nhbc recommend that this type of roof be considered as the standard form of construction. Details both in 2d and 3d to give a clear understanding. Flat roof details and information relating to insulating a flat roof. The 3 most common materials used for flat roof construction.

There are two forms of warm deck roof. This video shows detailed drawing. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Types of warm deck roof.

Hopefully this video will help explain the difference between warm flat roof construction and cold flat roof construction. Flat roof design guide. This usually keeps the deck warm. Warm cold and inverted.

Others would treat even steeper pitches as flat roofs. In a warm flat roof construction the insulation is positioned above the structural deck and no ventilation is required. For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. 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.

Hot tar and gravel. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off. There are three recognised designs of flat roof construction. 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.

In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm. Warm roof systems. In the case of a flat roof insulation is usually in the form of either a rigid board above the deck or a fibrous quilt immediately above the ceiling depending on the type of roof construction. There are several methods and materials for the design of the exterior surface of a warm or cold flat roof.

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. The construction of the flat roof is similar to that of the timber upper floor.