Construction Warm Flat Roof Fascia Detail
Others would treat even steeper pitches as flat roofs.
Construction warm flat roof fascia detail. So far so good. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off. Joists are placed on edge spaced at 400 600mm centres supported by external and internal load bearing walls. For additional stability you can also use steel joists that are built into one or both of the walls.
Having a manual for warm flat roof construction with details and a summary of rules to follow helps. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. 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. Warm roof systems.
Whatever new flat roof covering you choose epdm rubber kemper. The construction of the flat roof is similar to that of the timber upper floor. Details both in 2d and 3d to give a clear understanding. By way of metal flat roof joist hangers.
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. This will give. 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. 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.
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. I explain problems with insulating a roof using the warm and cold roof construction methods. Using timber wall plates. No flat roof is truly flat.
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. Whether the joists are angled or you use firrings. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. Your flat roof construction detail drawing has one obvious mistake.
This could mean flat roofs may not raise the same red flags they used to. No one online shows you this which is.