The term plate means a major horizontal supporting timber.
The purpose of roof framing is.
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.
The roof framing is the structure that supports your roof.
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.
Framing materials are usually wood engineered wood or structural steel the alternative to framed construction is generally called mass wall construction where horizontal layers of stacked materials such as log building masonry rammed earth adobe etc.
It is a waterproofing layer made of regular felt stacked above the solid.
Sloped to shed water.
It must be strong enough to with stand high winds.
A type of roof that slopes in one direction only.
By supporting the rafters they allow longer spans than the rafters alone.
The main decision that needs to be made with erecting a roof is which material to use for its construction.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
This chapter will familiarize carpenters with the most common types of roof construction and materials.
Timber vs metal frames.
And in areas of heavy snow it must be constructed more rigidly to bear the extra weight.
Some of these can support the roof and prevent ridge sagging and wall spreading.
Purlin plates in wooden construction.
Timber is by far the most common material for house framing in australia.
Are used without framing.
Framing in construction is the fitting together of pieces to give a structure support and shape.
Collar ties rafter ties tension beams structural ridge beams.
Also called the bird s mouth.
A purlin plate in wood construction is also called an arcade plate in european english under purlin and principal purlin.
Purlin plates are beams which support the mid span of rafters and are supported by posts.