Construction Warm Flat Roof Fascia Detail

Construction studies drawing detail showing how to draw a flat roof warm deck construction detail to a scale of 1 10 with a short introduction highlighting t.

Construction warm flat roof fascia detail.

Flat roof details and information relating to insulating a flat roof. Warm roof systems. 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. Flat roofs are hard to replace.

Details both in 2d and 3d to give a clear understanding. Using timber wall plates. So far so good. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.

This article covers all manner of flat roofing venting methods and details on how to build a flat garage roof and how to frame a flat roof and also encompasses flat roofs roof decking roof coverings including flat roof felt how to prevent leaks at abutments timber flat roof construction details and parapets and common. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. Whatever new flat roof covering you choose epdm rubber kemper. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

For additional stability you can also use steel joists that are built into one or both of the 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. No flat roof is truly flat. This will give.

Having a manual for warm flat roof construction with details and a summary of rules to follow helps. 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. Your flat roof construction detail drawing has one obvious mistake. Whether the joists are angled or you use firrings.

I explain problems with insulating a roof using the warm and cold roof construction methods. 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. This could mean flat roofs may not raise the same red flags they used to. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off.

The other is putting osb and insulation on even a slightly sloping roof means everything from the top of the joist up will not be plumb but run at an angle. Others would treat even steeper pitches as flat roofs.