Having a manual for warm flat roof construction with details and a summary of rules to follow helps.
Warm flat roof fascia detail.
This video will demonstrate how to install a cure it grp waterproofing system in a warm roof build up.
Using timber wall plates.
Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.
That will help you remember certain factors and details to build the best possible flat roof.
Your sketches seem to show the insulation proportionately thinner than it needs to be.
Front fascia flat roof detail.
Say 150 joists and 152 beam which gives a fascia about 450 deep rather ungainly.
The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.
In an earlier video you showed how to seal and insulate behind the fascia of a warm roof so that you avoid condensation on the fascia and even more importantly avoid cold air circulating between a warm roof and the ceiling below which can completely defeat the aim of a warm roof.
Doing it the builder s way you are looking at 125 kingspan.
Those details show the chief drawback of the warm roof the deep fascia.
By way of metal flat roof joist hangers.
Warm flat roofs are very forgiving however if not installed correctly cold spots are easily built into the roof and problems.