Roof Slate Roof Dead Load

Pole barns roof trusses roof material weight roof material dead load table.

Roof slate roof dead load.

Dead load of roof of wood shingle construction 10 lbs. Concrete tiles plain 0 75 kn m. Dead loads are simply the sum of the weights of all the building materials used to build a particular part of a structure. The weight of truss rafter must be added to calculate the dead load of the roof.

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 support itself. Clay tiles interlocking 0 45 kn m. Dead load of attic floor when floored 20 lbs. Roof will not be available when an applicant applies for a reroofing permit years in the future.

For ground snow loads greater than 20 pounds per square foot the roof load is equal to. Overturning should also consider roof uplift forces unless a separate load path is designed to transfer those forces. 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. Popular pages pole framing post connection post embedment post frame foundations rafter installation pole barn roof.

Pitched roof measured on slope clay tiles plain 0 65 kn m. Concrete tiles interlocking 0 45 kn m. When a roof is designed using only a minimum 4 psf roof material dead load it will be our policy. 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.

Live load on attic floor local requirements. Instruct applicants to account for the potential weight of reroofing materials in their calculations as part of the original design. For roofs that are flat and with ground snow loads lower than 20 pounds per square foot the roof snow load is equal to 70 of the product of the exposure thermal and importance factors and the ground snow load. Pitched roof measured on plan timber trussed rafters.

When used for storage only dead load of attic floor not floored 10 lbs. Step 4 determine the flat roof snow load.