Pitched Roof Structure Design

Continuing on from part 3.

Pitched roof structure design.

There are two basic methods of pitched roof construction. This complex roofing design makes any garden gazebo really stand out. Let s consider a basic gable wood roof framing design. A gable roof is shaped like an upside down v and is sometimes referred to as a dual pitched saddle saddleback or peaked roof.

Here we have a wood framed gable roof. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Gable roofs will easily shed water and snow provide more space for the attic or vaulted ceilings and allow more ventilation. They are easily recognized by their triangular shape.

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 steep slope may be curved. 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. 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.

The design of pitched roofs should. There are a number of different material used for the outer layer of pitched roofs. Formed of six triangular identically pitched roof panels and six supporting rafters this type of roof is most typically used for a beautifully unique gazebo addition to a home or commercial garden lawn. The basic explanation is that most roofs have a slope and the degree of steepness associated with the slope is called pitch.

The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness. A roof with the pitch divided into a shallow slope above a steeper slope. Have dead and imposed loads calculated in accordance with bs en 1991 1 1 bs en 1991 1 3 and bs en 1991 1 4 be in accordance with pd 6693 1 and technical requirement r5 where appropriate be appropriate for the location accounting for exposure and wind uplift. Floor beam span tables of residential structural design we will now look at roof rafter and beam design.

The steep slope may be curved. Clay roof tiles a variety of fired clay tiles moulded to different designs are available natural slate roof tiles these are primarily rectangular in shape although other flat designs are possible. The gentle slope of a hip roof with its trapezoidal sides and pyramid like elegance is a graceful traditional design that pleases the eyes and can be constructed in a combination of various unique styles.