The following is a list of terms or phrases commonly used in the roofing industry.
Roof members terminology.
A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.
Terminology commonly used in the metal building industry.
A building product which supplements a basic solid panel building such as a door window light transmitting panel roof vent cupola soffit wainscot overhang etc.
The following diagram shows the terms used for general roof truss members.
The terms pitch and slope are simply two different ways of expressing the same measurement.
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.
Terms for roof truss members.
A horizontal member that establishes the lower edge of a truss usually carrying combined tension and bending stresses.
They do for the roof what the joists do for the floor and what the studs.
1 part of a pitched roof construction that receives the feet of the spars sp ars and ceiling joist ends.
Some of these can support the roof and prevent ridge sagging and wall spreading.
Collar ties rafter ties tension beams structural ridge beams.
Below are some commonly used terms that identify parts of a roof and types of roofing.
A structure designed and constructed to house farm implements hay grain poultry livestock.
The following diagram shows the terms applying to gable end roofs.
It is a waterproofing layer made of regular felt stacked above the solid.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
Rafter the members making up the main body of the framework of all roofs are called rafters.
The portion of the roof projecting out from the side walls of the house.
Each term is accompanied by a brief definition.
A condition where both the top and bottom chords extend beyond a support structure with no bearing at the extended end.
The wood member at the intersection is called the valley rafter and the feet of short spars are nailed to the valley rafter.
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A low slope or flat seeming roof covered with alternating layers of roofing felt and hot mapped asphalt and topped off with a layer of gravel.
The same roof has a 4 12 or 1 3 pitch.
Common roofing terms defined explained.
Basic terms and descriptions.
