The Purpose Of Roof Framing Is

This chapter will familiarize carpenters with the most common types of roof construction and materials.

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. By supporting the rafters they allow longer spans than the rafters alone. Purlin plates are beams which support the mid span of rafters and are supported by posts. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

Collar ties rafter ties tension beams structural ridge beams. The main decision that needs to be made with erecting a roof is which material to use for its construction. It must be strong enough to with stand high winds. Purlin plates in wooden construction.

Also called the bird s mouth. A type of roof that slopes in one direction only. Some of these can support the roof and prevent ridge sagging and wall spreading. The term plate means a major horizontal supporting timber.

Timber is by far the most common material for house framing in australia. Sloped to shed water. Framing in construction is the fitting together of pieces to give a structure support and shape. A horizontal member of a roof frame that is placed on edge at the ridge and into which the upper ends of rafters are fastened.

And in areas of heavy snow it must be constructed more rigidly to bear the extra weight. The roof framing is the structure that supports your roof. Timber vs metal frames. It is a waterproofing layer made of regular felt stacked above the solid.

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. A cut on the rafter that is a combination of a level cut and a plumb cut. A purlin plate in wood construction is also called an arcade plate in european english under purlin and principal purlin.