Glossary of Terms
Coils of electricity, hot water or steam pipes embedded in floors, ceilings, or walls to heat rooms.
One of a series of sloped, structural beams that support a roof.
A framing member attached to the end of a truss or rafter that extends the effective slope length of the roof by supporting additional purlins and/or subfasica. Rafter extensions are commonly used to help form eave overhangs as well as over shot roofs.
Line formed by the intersection of the plane formed by the top edge of the purlins and the plane formed by the outside edge of the endwall girts.
|Rake overhang distance||
Horizontal distance from the rake line to the outside of the fly rafter.
A purlin that overhangs the endwall of a building.
A rafter located in an end wall.
A purlin located entirely between adjacent trusses/rafters. Single-span components that are typically held in place with special metal hangers. Also known as an inset purlin or dropped purlin.
Concrete strengthened with wire or metal bars.
Raised moulding dividing a panel.
Girder located at the ridge of a building.
Line formed by the intersection of the plane formed by the top edge of the purlins on one side of the roof and the plane formed by the top edge of the purlins on the opposite side of the roof. For a mono-slope roof, the ridge line is the line formed by the intersection of the plane formed by the top edge of the purlins and the plane formed by the outside edge of the girts in the tallest sidewall.
A purlin adjacent to the building ridge.
A truss that directly supports a roof.
Lumber and timber that has not been planed.