Glossary of termsDefinition of words generally found within this website.
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Word:
Rafter
Definition:
Parallel members of a roof that support battens/purlins and roofing materials.
One of a series of structural members of a roof designed to support roof loads. The rafters of a flat roof are sometimes called roof joists.
The framing member which directly supports the roof sheathing. A rafter usually follows the angle of the roof, and may be a part of a roof truss. The supporting framing member immediately beneath the roof deck, sloping from the ridge to the wall plate.
A sloping roof member that supports the roof covering which extends from the ridge or the hip of the roof to the eaves. A common rafter is one which runs square with the plate and extends to the ridge. A hip rafter extends from the outside angle of the plate towards the apex of the roof. A valley rafter extends from an inside angle of the plates toward the ridge of the house.
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