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 horizontal beam connecting two rafters that intersect at the ridge. 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. 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. 3 part of a suspended timber floor construction that provides a level bearing and.

An asphalt based roof cement formulated to adhere overlapping plies or asphalt roll roofing. Common types of roofs and basic framing terms. 1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends. Dormer window a vertical window or opening coming through a sloping roof and usually provided with its own pitched roof.

It is simple in design economical to construct. The illustration here shows how these materials go together to make for a sound roof. Definition of structural ridge or ridge beam used in roof framing a structural ridge beam is a horizontal beam placed at the peak or ridge of a roof and is designed to carry much of the live and dead loads or weight of the roof structure by itself. 2 part of a flat roof structure that receives the ends of the flat roof joists.

An example of each is shown in figure 2 1. Occurs where overlapping materials are seamed sealed or. The edge of a roof which runs from eaves to ridge at a gable. Often used in attics to add light and a pleasing design to the house.

The same roof has a 4 12 or 1 3 pitch. Roof shapes vary from almost flat to steeply pitched. That part of a roofing waterproofing or flashing component that overlaps or covers any portion of the same or. It is the form most commonly used by the navy.

The terms pitch and slope are simply two different ways of expressing the same measurement. Usages vary slightly from region to region or from one builder or architect to another. 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. A vertical structure through the roof that ventilates smoke and combustion gases from a fireplace boiler or stove to the outside atmosphere.