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Timber roof rafters & LVL Hyspan rafters

Commonly roof rafters carry the load of the roofing material above it.

Terracotta roof tiles, concrete tiles, colorbond, zincalume sheeting,

slate shingles, aluminium tiles are some of the materials used to cover your roof. Without the structure of the roof rafter the roof material used would not be able to be layed on a slope in a secure manner.

Roof rafters being a structural member of any roof are to be pitched

to a degree (angle) for any roof to either the engineered detail according to roof loads being, wind, rain, snow and live loads placed upon them. Typically a steep roof rafter pitch enables water to run off the roof quickly and efficiently, to get that water away fast enough to eliminate leakage.

Some roof pitches are determined by height covenants to the building its self. Local council and certifiers can advise of the pitch angle required for any one project.

Depending on the area the building is placed also determines roof angles.

Working out a rafter length for the average person could prove to be a bit difficult. Any rafter length needs to be worked out by means of measuring the length of the area in wich it will sit, or if you dont have a ridge point or finishing point of your rafter, commonly a calculated method must be used, ie Pythagoras, if you have your required roof pitch angle degree, you can use this mathimatical method to work out your rafter lengths. or ring a carpenter.

For long span rafters carrying loads over a large area single span without centre support, Lvl Hyspan beams are an affective way to build that roof. Advantages are, smaller sectional sizes, lighter material, stronger straighter lengths.

 

For any conventional roofing needs, go to Sydney Wide Carpenters

Carpenters for framing roofing and all aspects of carpentry work.

 

 

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