Metal Roof Structure Terminology

A part used in a metal building system.

Metal roof structure terminology.

Purlins can be wood strips 1 x 2 or can metal and are usually a 1 subgirt material preferably galvanized steel. It has a steeper and more noticeable pitch. Glossary of metal roofing terms 30 lb felt. Valley the internal angle formed by two inclined slopes of a roof.

Is a moisture proof foil material that is placed over the roof battens and installed beneath the external roof covering eg tiles or metal. A metal v shaped gutter is fixed in this area to direct water to the gutter. Scaffolding a temporary structure specifically used to support access platforms or working platforms. A skillion roof is also commonly known as a shed roof.

An l shaped metal strip positioned along a roof s edges to allow water to run off the roof without running down the eaves or siding. These indicate the resistance of a roofing system to fires originating from sources. A main member used in a vertical position on a building to transfer loads from main roof beams trusses or rafters to the foundations. Class a b and c fire ratings.

Truss roof the prefabricated self supporting triangulated structural framework commonly used for all types of roofs. It is typically made of a polyester fleece and infused with tar. Eaves on a sloped roof the horizontal underside that projects out from the house wall. Horizontal lengths of material wood or metal that are affixed to the roof and to which the finished roofing material is affixed.