Warm Flat Roof Design

The major difference between the warm flat roof and the cold flat roof has to do with the air flow between the roofing timbers known as joists that help to hold up the roof.

Warm flat roof design.

The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. On flat roofs a warm roof is one in which the insulation layer is laid on top of roof structure. Flat roof types. 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.

Warm roof designing buildings wiki share your construction industry knowledge. Flat roof designs for houses. It is most important to note the vapour barrier must be a continuous vapour barrier with no puncture points. There are design differences for each type.

A flat roof must be strong durable and stable throughout its lifetime. To put together a warm deck roof it s important that the insulation be positioned above the structural deck the layers that make up the ceiling. Warm flat roof designs. In terms of the thermal design of a flat roof what are the options and the best practices of flat roof build ups.

Nowhere does it support the design and construction of hybrid roofs. In the case of a flat roof insulation is usually either a rigid board above the deck or a mineral glass wool quilt immediately. This results in the structural deck and its supports being at a temperature closer to that of the building s interior. In this article we discuss the pros and cons of both roof designs.

Regardless of your flat roof design take time to thoroughly check the surface for flaws. Flat roof design guide. Designers should therefore take a cautious approach and adopt fail safe solutions. This is why warm flat roof designs are commonly regarded as the preferred and more effective design.

A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less. Warm cold and inverted. To that end the standard lists three acceptable scenarios for the placement of flat roof insulation. Here is a diagram of a typical warm roof.

The recognised flat roof build ups for best design practices are. Zero ventilation space is required and the construction appears stacked and compact. Typical details for a warm flat roof u k. 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.

Cold roof warm roof inverted roof. The following outlines ways to build protect and reinforce your roof. There is a wide variety of flat roof materials available each with its own advantages and drawbacks.