Function Of Roof Rafter

The roof rafters provide integral structural support to the roof.

Function of roof rafter.

Collar ties rafter ties tension beams structural ridge beams. Rafter designing buildings wiki share your construction industry knowledge. Typically it runs from the ridge or hip of the roof to the wall plate of the external wall. A rafter is a structural component that is used as part of a roof construction.

Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Rafters are generally laid in series side by side providing a base to support roof decks roof coverings and so on. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.

A roof is an essential covering that is placed on houses and buildings and even such items as automobiles. 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. It is a waterproofing layer made of regular felt stacked above the solid. A rafter is one of a series of sloped structural members such as wooden beams that extend from the ridge or hip to the wall plate downslope perimeter or eave and that are designed to support the roof deck and its associated loads.

Different elements and parts of the roof provide protection to the structure s interior and exterior. 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. Some of these can support the roof and prevent ridge sagging and wall spreading. In many situations you ll find that ceiling joists installed parallel to the rafters are intended to function as rafter ties.

A pair of rafters is called a couple in home construction rafters are normally made of wood exposed rafters are a feature of some traditional roof styles. For homes and buildings especially a roof performs multiple functions all of which are tied into providing protection. The roof framing mock up below shows a standard rafter tie. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.