Metal Roof Structure Terminology

A part used in a metal building system.

Metal roof structure terminology.

These indicate the resistance of a roofing system to fires originating from sources. A skillion roof is also commonly known as a shed roof. Skillion a roof shape is different from a standard flat roof. Purlins can be wood strips 1 x 2 or can metal and are usually a 1 subgirt material preferably galvanized steel.

It is typically made of a polyester fleece and infused with tar. A metal v shaped gutter is fixed in this area to direct water to the gutter. It has a steeper and more noticeable pitch. Is a moisture proof foil material that is placed over the roof battens and installed beneath the external roof covering eg tiles or metal.

Also called non structural systems. Class a b and c fire ratings. See also components and cladding. Eaves on a sloped roof the horizontal underside that projects out from the house wall.

Glossary of metal roofing terms 30 lb felt. A main member used in a vertical position on a building to transfer loads from main roof beams trusses or rafters to the foundations. 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. Horizontal lengths of material wood or metal that are affixed to the roof and to which the finished roofing material is affixed.