Pitched Roof Construction Part 1

If your main interest is in flat roofs then you can learn more by reading flat roof construction part 4.

Pitched roof construction part 1.

It is a bi fold bi planer roof with a ridge at its highest point. A pitched or sloping roof has a pitch of at least 15 but often much more. Part 4 flat roof construction. Pitched roof construction can be carried out using two basic methods.

Covers an overview of flat and pitched roofs. This is more of a traditional manner in regards to cutting the timber while onsite and building up the roof by the use of rafters ridge boards joists and purlins among others. To be more specific a pitched roof requires a pitch of more than 10 degrees or a roof with two slopes that meet at a central ridge. If buildings are constructed with some limited width then also we can go for.

Robin is working on an extension so we thought we d shadow him for the day and see how he creates a pitched roof or semi pitched roof leading up to a flat. Part 3 pitched roof detail. Covers pitched roof detail. Part 1 a guide to roof construction.

This can be determined by the size of the timbers or the size of the roof. A typical roof pitch in the uk for a traditional house will be 40 50 but at the extreme can go up to 70 above 70. The pitch of a roof is its vertical rise divided by its horizontal span and is a measure of its steepness. A pitched roof is a roof comprising a sloping surface or surfaces with an angle of usually over 20 degrees.

One pitched roof construction method is a cut roof method. Roof ridges and ridge tiles roof hips and hip tiles roof valleys roof verges and lead flashings. Pitched roofs are generally used where rainfall is heavy. A cut roof this method involves cutting timber on site and building up the roof by rafters joists ridge boards and purlins.

How to construct a watertight low pitch roof part 1. The basic cold roof construction consists of rafters set at up to 600mm centres underlay laid horizontally over the rafters with a slight drape between each rafter and tile battens nailed directly through the underlay into the. We know that the roofs are generally provided at top to cover and protect the structure from different weather conditions. 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.