Self Supporting Roof Beams

If the home s construction cannot withstand the weight of a new roof it will need to be designed as a self supporting roof over meaning its weight will be held by its own footers via post and beam constructi on.

Self supporting roof beams.

Composed of as few as three beams a reciprocal roof can incorporate practically any number of beams and span great distances while still maintaining its integrity. A structural ridge beam is a horizontal beam placed at the peak or ridge of a roof and is designed to carry much of the live and dead loads or weight of the roof structure by itself. It cannot self span without this support under it. I joists lvl hips are sometimes used to get longer spans than you could with lumber which is usually limited to 20 lengths around here.

Polycarbonate roofing systems have a wide range of benefits. The unique self supporting design of our c lock roof sheets allows them to clear greater spans than any other metal roofing product we know of. Self supporting roofing system the professionally engineered self supporting roofing system available from ariel plastics free spans 4 0m and accommodates 16mm 25mm and 35mm multiwall polycarbonate roofing sheets. It is suitable for glass or polycarbonate roofs.

See c lock span charts for details determine your ledger beam height and header height being sure to allow a minimum of 1 2 of rise for every 12 of run. Click the links to find out more about them and the products today. However many newer roof designs are no longer simple but are broken up with cross gables etc. Calculate the weight the beam must support.

Multiply the loading per square foot by the area in square feet of the surface which the beams will be supporting. Examples of self supporting mobile home roof over designs. The loads on the ridge beam are carried by vertical posts at the beam ends down through the building structural walls to the building foundation. The self support system eaves beam is the one you would choose for a conservatory or any roof that would have continuous support under the eaves beam e g.

Coming off in all directions. A reciprocal roof is a self supporting round structure composed of interlocking beams that equally bear the weight of one another. A reciprocal roof is a beautiful and simple self supporting structure that can be composed of as few as three rafters and up to any imaginable quantity within reason of course. A simple hip up to a certain span is usually self supporting.

For a flat roof with snow loading this is 25 lbs. The following images are all examples of self supporting mobile home roof overs. Per square foot for northern areas of the u s. The eaves beam in a conservatory would sit on top of the windows.