Roof slope and rigidness are for shedding water and bearing any extra additional weight.
Roof framing systems definition.
The butt of a shingle is the end that faces down roof.
In profile the framing of a conventional pitched roof forms a triangle.
Roofs must also be strong enough to withstand high winds.
The exposed end of a shingle.
Although truss designed roofs are predominant throughout most of the residential construction industry there are regions where building with stick frame roofs is still common.
Framing materials are usually wood engineered wood or structural steel.
The rafters are usually positioned directly above the wall studs.
This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.
Building strong stick frame roofs.
Some of these can support the roof and prevent ridge sagging and wall spreading.
The roof framing is the structure that supports your roof.
Mirrored pairs of rafters meet at a ridge and are connected across the base by a ceiling joist.
Like wall studs and floor joists rafters and trusses are spaced every 16 or 24 inches from center to center.
Most roofs utilize 16 inch spacings for strength and rigidity.
In this section we ll cover the most common types of roofs and basic framing terms.
Types of roofs and define common roof framing terms.
Timber vs metal frames.
In this post randy shackelford discusses some design choices available to stick frame builders the challenges they pose and the solutions offered by the simpson strong tie three connector system for stick frame roofing.
Timber is by far the most common material for house framing in australia.
Collar ties rafter ties tension beams structural ridge beams.
Framing in construction is the fitting together of pieces to give a structure support and shape.
The main decision that needs to be made with erecting a roof is which material to use for its construction.