Roof Slate Roof Dead Load
Girder load width half joist span live load on roof local requirements for wind and snow.
Roof slate roof dead load. So all things being equal if you were able to use a rafter table for dead loads of 10 pounds per square foot for the asphalt roof you should be able to use a rafter table for dead loads of 15 pounds per square foot for the tile roof. Pitched roof measured on plan timber trussed rafters. 3 3 dead loads dead loads consist of the permanent construction material loads comprising the roof floor wall and foundation systems including claddings finishes and fixed equipment. The dead load refers to the weight of the roof and anything permanently affixed on the roof.
The load includes everything from the wood supporting the roof to the tiles that go on top. Ft dead load of roof of wood shingle construction 10 lbs. When used for storage only dead load of attic floor not floored 10 lbs. Live load on attic floor local requirements.
Snow and rainfall are not parts of the dead load. The following table provides typical weights dead load self weight for various roofing materials where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products. Concrete tiles plain 0 75 kn m. A table of roof material weights including sheathing insulation and other decking materials.
The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings. Popular pages pole framing post connection post embedment post frame foundations rafter installation pole barn roof. The clay tiles you are using weigh about 8 pounds per square foot adding 5 pounds to the design dead load. The measure has to be consistent during the roof s lifespan.
1 lb m ft 2 4 88 kg m 2. The weight of truss rafter must be added to calculate the dead load of the roof. Clay tiles interlocking 0 45 kn m. Asphalt shingles typically weigh about 3 pounds per square foot.
Dead loads the dead load on a roof is the weight of the roof structure itself along with any permanently attached materials or structures on the roof so it must be designed first of all to.