Roof Structure Terminology

The main factors which influence the shape of roofs are the climate and the materials available for roof structure and the outer covering.

Roof structure terminology.

The edge of a roof which runs from eaves to ridge at a gable. A vertical structure through the roof that ventilates smoke and combustion gases from a fireplace boiler or stove to the outside atmosphere. 1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends. Occurs where overlapping materials are seamed sealed or.

Roof shapes vary from almost flat to steeply pitched. 3 part of a suspended timber floor construction that provides a level bearing and. 2 part of a flat roof structure that receives the ends of the flat roof joists. A roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run.

The terms pitch and slope are simply two different ways of expressing the same measurement. Dormer window a vertical window or opening coming through a sloping roof and usually provided with its own pitched roof. Types of roofs the most commonly used types of pitched roof construction are the gable the hip the intersecting and the shed or lean to. It is the form most commonly used by the navy.

That part of a roofing waterproofing or flashing component that overlaps or covers any portion of the same or. Roof terminology is also not rigidly defined. Cupola a relatively small roofed structure generally set on the ridge or peak of a main roof area. The horizontal beam connecting two rafters that intersect at the ridge.

It is simple in design economical to construct. An asphalt based roof cement formulated to adhere overlapping plies or asphalt roll roofing. Often used in attics to add light and a pleasing design to the house. A contemporary roof regardless of shape or surface material consists of a variety of components that include wood framing sheathing underlayment flashing gutters and of course the shingles or other finished surface.

Gable a gable roof has a ridge at the center and slopes in two directions. The same roof has a 4 12 or 1 3 pitch. Common types of roofs and basic framing terms. The illustration here shows how these materials go together to make for a sound roof.