Metal Roofing Terminology

The exposed exterior roof surface consisting of metal panels.

Metal roofing terminology.

Eaves on a sloped roof the horizontal underside that projects out from the house wall. Saturant asphalt used to impregnate felt for waterproofing and strength. Triangular end of a building from cornice or eaves to ridge. Horizontal lengths of material wood or metal that are affixed to the roof and to which the finished roofing material is affixed.

Sheet metal used in waterproofing roof valleys or hips or the angle between a chimney and a roof. Sheet steel with a thin aluminum coating on the surface to enhance the steel s ability to withstand weathering. The lower part of a roof that overhangs the walls. We ve helped hundreds of people just like you save money on their projects whether it be diy metal roofing material for their new home or installing a new steel roof over an old leaking roof.

Batten a batten is a piece of timber or metal channel installed horizontally on top of the rafters to allow sheet metal to be laid and fastened. 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. Seal down a factory applied asphalt strip used to bond a shingle to the one above. To help you better understand more about metal roofing here is a list of common terms that you may encounter.

A hip dormer is a structure that protrudes from the plane of the roof slope often with the addition of windows. Stone coated is metal roofing made from zinc or aluminum coated steel that is then coated with the same granules as composition shingles. Open valley valley in which metal is used and roofing material does not cover entire valley area as in a closed valley. Roof dormers provide light added space and ventilation to the topmost spaces in the house.

A drip edge is a strip of material typically metal installed along the roof edges so water won t drip onto the eaves siding or deck. Don t hesitate to give us a call with questions at 1 877 833 3237. It is attractive but faces similar problems of streaking granule loss and organic growth as traditional composition shingles. Purlins can be wood strips 1 x 2 or can metal and are usually a 1 subgirt material preferably galvanized steel.

Siliconized polyester is a solvent based system with polyester resin. This is used to provide wind resistance.