Flat Roof Extension Detail

A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less.

Flat roof extension detail.

Flat roof options help to free up internal space and are often cheaper that pitched roof options as they require fewer materials to cover the same roof span. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. Flat roofs are an often lower cost and easier to install alternative to traditional pitched roofs. Of course you don t need to live in a modern house to deal with a flat roof.

Creating a flat roof can be completed as either a diy weekend project or by a professional contractor. It must provide adequate protection against the elements keeping the buildings structure and interior dry. A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. Old asbestos roofs are often replaced with flat roofs.

There are many flat roof designs to inspire your extension project which you can find in books magazines and online. Sizes of joists needed for flat roof construction. Use this flat roof resource for finding the best design and cost for a well constructed addition to your unique residence. So any timber joists that are used need to be strong enough to support this weight.

As opposed to old built up felt roofing with joins new single ply waterproof membranes are now most commonly used. What pitch is a flat roof. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. For first time homeowners it s typical to hire a professional contractor who can complete the flat roof installation for you and offer a full warranty for their work.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. In reality it will look nicer and is the simplest type to use as extension to the. Flat roof construction for residential. A flat roof must be strong durable and stable throughout its lifetime.

When done properly a flat roof looks modern in addition to being. In fact many residences have sections of flat roof on porches balconies garages and room extensions which appear so attractive. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. What is a flat roof.

Flat roof construction design flat roof construction detail flat roof construction detail dwg flat roof construction details australia flat roof construc. They are common on extensions garages and commercial buildings. Flat roof types. They are usually advisable for additional or necessary extensions of the house as future plans during the initial construction.