Metal Roofing Terminology

This is used to provide wind resistance.

Metal roofing terminology.

Purlins can be wood strips 1 x 2 or can metal and are usually a 1 subgirt material preferably galvanized steel. It is attractive but faces similar problems of streaking granule loss and organic growth as traditional composition shingles. Roof dormers provide light added space and ventilation to the topmost spaces in the house. Triangular end of a building from cornice or eaves to ridge.

What is a hip dormer. Stone coated is metal roofing made from zinc or aluminum coated steel that is then coated with the same granules as composition shingles. Sheet metal used in waterproofing roof valleys or hips or the angle between a chimney and a roof. Horizontal lengths of material wood or metal that are affixed to the roof and to which the finished roofing material is affixed.

Sheet steel with a thin aluminum coating on the surface to enhance the steel s ability to withstand weathering. Seal down a factory applied asphalt strip used to bond a shingle to the one above. The lower part of a roof that overhangs the walls. Siliconized polyester is a solvent based system with polyester resin.

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. A hip dormer is a structure that protrudes from the plane of the roof slope often with the addition of windows. Don t hesitate to give us a call with questions at 1 877 833 3237. The exposed exterior roof surface consisting of metal panels.

Open valley valley in which metal is used and roofing material does not cover entire valley area as in a closed valley. Bmt base metal thickness is a term to describe the thickness of the metal used not including coatings or paint. 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. Eaves on a sloped roof the horizontal underside that projects out from the house wall.

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. Loads that are produced 1 during maintenance by workers equipment and materials and 2 during the life of the structure by movable objects which do not include wind snow seismic or dead loads.