Roof Dead Load

And 1 90 lb 1 7 psf with ceiling be sure to add wt.

Roof dead load.

The dead load on a roof is the weight of the roof structure itself along with any permanently attached. Load limits on the roof of a building dead loads. Usually the weight of materials plus immovable fixtures such as carpet roof and etc. Dead loads dead loads are static forces that are relatively constant for an extended time.

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. Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products. Dead loads depends upon the unit weight of the material. Minimum design dead load can be found in asce 7 table c3 1.

Dead loads includes the self weight of walls floors beams columns etc. Where snow isn t a problem the. And also the permanent fixtures present in the structure. 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.

Shingles and paper 2 5 psf without ceiling 1 0 psf 2 15 lb. Ft dead load of roof of wood shingle construction 10 lbs. Live load on attic floor local requirements. The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings.

Of ceiling 1 5 psf 3 15 lb. Dead loads consist of the permanent construction material loads comprising the roof floor wall and foundation systems including claddings finishes and fixed equipment. Building materials are not dead loads until constructed in permanent position. The unit weight of commonly used building materials are given in the code is 875 part i 1987.

The following table provides typical weights dead load self weight for various roofing materials. Joist span bridging girder load width half joist span live load on roof local requirements for wind and snow. Gypsum board 2 0 psf 5 8 in. Here each square foot of roof system delivers 50 pounds of live load and 15 pounds of dead load 65 psf total to the structural support system.

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 are the permanent loads which are always present. Roof material dead load table.