Roof Dead Load

Building materials are not dead loads until constructed in permanent position.

Roof dead load.

Of ceiling 1 5 psf 3 15 lb. Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products. Load limits on the roof of a building dead loads. Live load on attic floor local requirements.

Where snow isn t a problem the. The following table provides typical weights dead load self weight for various roofing materials. The live load on a roof is the weight of any temporary objects on the roof. Gypsum board 2 0 psf 5 8 in.

The unit weight of commonly used building materials are given in the code is 875 part i 1987. Dead loads dead loads are static forces that are relatively constant for an extended time. Dead loads consist of the permanent construction material loads comprising the roof floor wall and foundation systems including claddings finishes and fixed equipment. The floors walls roof columns stairs permanent equipment and any fixed decor constitute a static load that normally doesn t change over the life of the building.

Roof material dead load table. Remember these loads are distributed uniformly over the entire surface of the roof. And 1 90 lb 1 7 psf with ceiling be sure to add wt. Ft dead load of roof of wood shingle construction 10 lbs.

The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings. 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 are the permanent loads which are always present. Shingles and paper 2 5 psf without ceiling 1 0 psf 2 15 lb.

Joist span bridging girder load width half joist span live load on roof local requirements for wind and snow. And also the permanent fixtures present in the structure. 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 includes the self weight of walls floors beams columns etc.

The dead load on a roof is the weight of the roof structure itself along with any permanently attached. Minimum design dead load can be found in asce 7 table c3 1. Dead loads depends upon the unit weight of the material.