For additional stability you can also use steel joists that are built into one or both of the walls.
Flat roofing warm flat roof fascia detail.
This is usually a timber boarding of some type which in turn is.
Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs.
Cold roofs and warm roofs.
So if i make the new roof a warm roof insulation behind the fascia is straightforward if fiddly i just need to persuade the roofer to close and insulate the gaps between joists by taking off the old fascia and inserting.
As opposed to old built up felt roofing with joins new single ply waterproof membranes are now most commonly used.
Front fascia flat roof detail.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
Details both in 2d and 3d to give a clear understanding.
There are two types of flat roof.
A typical warm roof is shown in the sketch below.
Warm flat roofs are very forgiving however if not.
Front fascia flat roof detail.
Flat roof details and information relating to insulating a flat roof.
But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.
154c fleet road hampstead london nw3 2qx.
Warm roof systems benefit from the insulation sitting above the deck.
Sketch 1 3 basic design warm and cold roofs householder s guide to flat roofing in a flat roof the waterproofing is always supported by a structural roof deck.
As the single ply roofing association spra points out this type of flat roofing is strong durable completely sealed and usually lasts at least 25 30 years.
This could mean flat roofs may not raise the same red flags they used to.
Flat roofs are hard to replace.
In this video our principal surveyor steven dickinson explains problems with insulating a roof using the warm and cold roof construction methods.
Steve from london flat roofing explains how warm flat roof construction works in this excellent short video.
Flat roofing solutions the xtratherm range of high performance insulation boards provides the ideal technically advanced solution for flat roof projects.
The membrane is then attached to the insulation.