Glossary of Terms

Search for glossary terms (regular expression allowed)
Begin with Contains Exact termSounds like

Glossaries

All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Term Definition
Radiant Heat

Coils of electricity, hot water or steam pipes embedded in floors, ceilings, or walls to heat rooms.

Rafter

One of a series of sloped, structural beams that support a roof.

Rafter extension

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.

Rake line

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.

Rake purlin

A purlin that overhangs the endwall of a building.

Rake rafter

A rafter located in an end wall.

Recessed purlin

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.

Reinforced Concrete

Concrete strengthened with wire or metal bars.

Rib

 Raised moulding dividing a panel.

Ridge beam

Girder located at the ridge of a building.

Ridge line

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.

Ridge purlin

A purlin adjacent to the building ridge.

Roof truss

A truss that directly supports a roof.

Rough Sawn

Lumber and timber that has not been planed.

All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z