How To Construct A Warm Deck Flat Roof

Types of flat roof construction warm and cold flat roofs.

How to construct a warm deck flat roof.

A 50mm air gap must be left. Others would treat even steeper pitches as flat roofs. Insulation for the warm flat roof only the basic construction process. 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 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. 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. This is where the insulation is typically packed between the rafters. A vapour control layer must be used below the insulation.

To insulate a flat roof with a concrete deck we recommend a warm deck construction method where the vapour control layer is sandwiched between the concrete deck and a layer of rigid pir insulation boards. That will help you remember certain factors and details to build the best possible flat roof. The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. 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.

This approach uses insulation with no air gap either immediately above or below the roof deck. So called because the insulating layer is located above the roof rafters and between the structural supports a warm deck roof results in a temperature for the roof and loft area that is consistent with the rest of the. To build a flat roof you ll want to have a thorough understanding of how the process of constructing the flat roof works and the different methods available. In a warm flat roof construction the insulation is positioned above the structural deck and no ventilation is required.

This option avoids the requirement to ventilate the roof. In case of warm roofs they have an insulation above the roof deck in this way it keeps the deck warm.