Timber Flat Roof Parapet Detail

Parapet detail masonry cavity wall flat roof with parapet insulation above joists.

Timber flat roof parapet detail. Accredited construction details quinn building products junction designs to combat thermal bridging thermal bridging is a much talked about but little understood phenomenon in building design. Having a manual for warm flat roof construction with details and a summary of rules to follow helps. Bitumen waterproofing 2 ply rigid plastic foam board vapour barrier separating membrane edge fixed timber roof element parapet capping sheet metal clip bitumen waterproofing 2 ply rigid plastic. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off.

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. Thermal bridges occur at all junctions in the building as well as when penetrations of the thermal insulation envelope occur. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. Gutter drip timber wrap cad pdf cad dwg.

Parapetitus they have a long history which of course is not always clear that allows me to embellish without threat of peer review reversal. Timber frame flat roof detail. On two sides the roof abuts a parapet a short wall common around flat roofs as well as a wall for the third floor. Flat roof under tiled roof termination cad pdf cad dwg.

To keep water from pooling at these inside corners tom rips 2x4s lengthwise on a 45 degree bevel with a table saw. Gutter drip trim with ps tape cad pdf cad dwg. 1 their major function today aside from confusing architects is to protect the edge of roof assemblies from wind uplift forces. Ultimately a flat roof should play a part in a total architectural composition and has the ability to enhance the aesthetic and practical outcomes of a home.

Thermal bridges can account for 35 50 of overall fabric. This study funded by the new zealand building research levy aimed to experimentally verify whether a parapet design detail from the new zealand compliance document for weathertightness e2 as1 resisted condensation accumulation. Parapet detail masonry cavity wall flat roof with parapet insulation above joists. Timber frame flat roof detail.

Historically so many problems have occurred with parapets that we have a name for it. Flat roof detail masonry cavity wall flat roof insulation above and between joists. Mansard detail lead cad pdf cad dwg. Here the rubber roof will need to run up the walls and glue to the sheathing.

There have been numerous cases of rotting timber in new zealand parapet walls. Others would treat even steeper pitches as flat roofs. Mansard detail drip trim cad pdf cad dwg. Metal coping termination cad pdf cad dwg.

That will help you remember certain factors and details to build the best possible flat roof.