This appendix contains common details for flat roofs and balconies.
Timber flat roof construction details uk.
Paying careful attention to.
When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off.
Roofs tend to be either pitched or flat and typically in residential construction timber is the most common material used.
Part 2 pitched roof construction.
The following sketches show examples of typical common construction details and illustrate general principles.
It must provide adequate protection against the elements keeping the buildings structure and interior dry.
Further information on specific waterproofing systems may be obtained from bs 8217 reinforced bitumen membranes for roofing code of practice the flat roofing.
Covers pitched roof materials basic pitched roof designs cold and warm pitched roofs and pitched roof construction.
However whilst they are described as flat almost all flat roofs are actually laid to a fall to ensure that rainwater can run off to the lower side.
The building regulations in the uk provide guidance on roof design.
As you may imagine there is a fair amount of weight involved here in terms of boards felt etc.
Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings.
They tend to be variants on flat roofing using curved timber glulam beams under a plywood covering.
So any timber joists that are used need to be strong enough to support this weight.
As with the construction of any type of roofing system it s crucial to understand the correct process and essential criteria involved in flat roofing construction.
Flat roof designing buildings wiki share your construction industry knowledge.
So whether your new flat roof is to be made of timber concrete or felt or a combination of these materials you need to comply with flat roof building regulations.
Part 3 pitched roof detail.
Others would treat even steeper pitches as flat roofs.
While many will contact a professional installation company to complete the job there are others who will feel confident enough in their own ability to install a flat roof onto the.
When installing or repairing a flat roof you must adhere to building regulations.
You can find the building regulations here.
Covers flat roof materials and flat.
Part 4 flat roof construction.
A flat roof must be strong durable and stable throughout its lifetime.
Covers pitched roof detail.
Flat roof types.
A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.
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.
Typically they are designed to have a minimum fall of 1 40 which given on site inaccuracies should.
Roof building is one of the more complex aspects of site carpentry and is a highly skilled job as the timbers are cut on site and erected one at a time it is both relatively slow and relatively expensive.
These things will affect the timing cost and overall running of your project.
