Pitched Roof Structure Design

A pitched roof is a roof that slopes downwards typically in two parts at an angle from a central ridge but sometimes in one part from one edge to another.

Pitched roof structure design.

The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. This mansard style roof flares out at the bottom. We ll now enlighten you on a roof s pitch the 4 very basic shapes and some of the many details that go into roof design. The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness.

As the name suggests the roof resembles the side view of a saw blade. Sawtooth roofs were once only used on commercial industrial buildings. Poorly constructed roofs endanger the people living in a building so you need to make the roof compatible to the rest of the building in a well engineered style. Issues to be taken into account include.

Wooden joists to support the weight of the roof. The result of joining two or more gabled roof sections together forming a t or l shape for the simplest forms or any number of more complex shapes. Some folks understand the many components that make up the design and structure of a roof. Gable ridged dual pitched peaked saddle pack saddle saddleback span roof.

A simple roof design shaped like an inverted v. The pyramid version of the mansard roof includes a pyramid design on top of the steep sides instead of a flat top. Continuing on from part 3. A roof is an integral part of a building and people try to personalise the roof designs to achieve optimum architectural splendour.

Pitched roof construction. A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc. A breathable membrane or in older properties roofing felt also sometimes called sarking felt or slaters felt which keeps the rain out whilst the roof is being built and offers secondary protection to any water that gets through the outside layer of the roof. The colour and material of the roof complement the structural integrity of a building.

Essentially a double gable. Understanding roof pitch is both fairly basic and a little complex. Information on pitched roof construction including roof materials. Here we have a wood framed gable roof.

Let s consider a basic gable wood roof framing design. Pitched roof designing buildings wiki share your construction industry knowledge. A sawtooth roof is two or more parallel pitched roofs in which the sloped and vertical surfaces alternate. 7 2 3 design of pitched roofs the sizing and spacing of members shall ensure structural stability and provide restraint to the structure without undue movement or distortion.

Floor beam span tables of residential structural design we will now look at roof rafter and beam design. An m shaped roof is double pitched roof.