Roof Dead Load

Shingles and paper 2 5 psf without ceiling 1 0 psf 2 15 lb.

Roof dead load.

Dead loads dead loads are static forces that are relatively constant for an extended time. Dead loads depends upon the unit weight of the material. Usually the weight of materials plus immovable fixtures such as carpet roof and etc. The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings.

Roof material dead load table. In a few cases the weights we give were calculated using more general manufacturer data or taken from a non manufacturer source that we consider reasonably authoritative. Dead loads in short the dead load of a structure comprises its completed weight usually measured in pounds per square foot before it goes into service. Dead loads consist of the permanent construction material loads comprising the roof floor wall and foundation systems including claddings finishes and fixed equipment.

And also the permanent fixtures present in the structure. Remember these loads are distributed uniformly over the entire surface of the roof. Minimum design dead load can be found in asce 7 table c3 1. Dead loads are the permanent loads which are always present.

Joist span bridging girder load width half joist span live load on roof local requirements for wind and snow. Ft dead load of roof of wood shingle construction 10 lbs. Where snow isn t a problem the. Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products.

The following table provides typical weights dead load self weight for various roofing materials. Live load on attic floor local requirements. Dead loads includes the self weight of walls floors beams columns etc. The live load on a roof is the weight of any temporary objects on the roof.

The unit weight of commonly used building materials are given in the code is 875 part i 1987. And 1 90 lb 2 2 psf 3 ply and gravel 5 6 psf ceiling 4 ply and gravel 6 0 psf acoustical fiber tile 1 0 psf roof sheathing 1 2 in. Building materials are not dead loads until constructed in permanent position. Of ceiling 1 5 psf 3 15 lb.

Load limits on the roof of a building dead loads. And 1 90 lb 1 7 psf with ceiling be sure to add wt. Gypsum board 2 0 psf 5 8 in.