Metal Roof Structure Terminology

Class a b and c fire ratings.

Metal roof structure terminology.

Scaffolding a temporary structure specifically used to support access platforms or working platforms. A roof extension beyond the end wall or side wall of a building. Purlins can be wood strips 1 x 2 or can metal and are usually a 1 subgirt material preferably galvanized steel. A composite decking made of solid materials.

Eaves on a sloped roof the horizontal underside that projects out from the house wall. Truss roof the prefabricated self supporting triangulated structural framework commonly used for all types of roofs. A horizontal timber or metal resting at the peak of the roof. These indicate the resistance of a roofing system to fires originating from sources.

A metal v shaped gutter is fixed in this area to direct water to the gutter. A skillion roof is also commonly known as a shed roof. A structure made up of three or more members with each member designed to carry a tension or compression force. Skillion a roof shape is different from a standard flat roof.

It resembles real wood and particularly strong and stable for bearing heavy load. Glossary metal components building and construction terminology accessory an additional product that adds to a solid sheeted roof wall such as louver walk door roof curb etc. It has a steeper and more noticeable pitch. The entire structure then acts as a beam.

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. Wind load on a building which causes a load in the upward direction. It is typically made of a polyester fleece and infused with tar. Also called non structural systems.

Is a moisture proof foil material that is placed over the roof battens and installed beneath the external roof covering eg tiles or metal. Metal building systems are the modern day buildings we see being used today for applications ranging from small residential garages to large scale distribution centers with low pitch roofs coloured wall roof panels and possibly even custom exterior finishes such as custom fascia s and mansards. The rafters and trusses are connected to the ridge board for a cohesive framework. Roof slope the tangent of the angle that a roof surface makes with the horizontal usually expressed in units of vertical rise to 12 units of horizontal run.

Roof seamer a machine that crimps or folds adjacent edges of standing seam metal roof panels together to form a seam. Valley the internal angle formed by two inclined slopes of a roof.