Roof Dead Load

The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings.

Roof dead load.

Live load on attic floor local requirements. 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. Usually the weight of materials plus immovable fixtures such as carpet roof and etc. And 1 90 lb 1 7 psf with ceiling be sure to add wt.

The live load on a roof is the weight of any temporary objects on the roof. 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. Ft dead load of roof of wood shingle construction 10 lbs.

Roof material dead load table. Shingles and paper 2 5 psf without ceiling 1 0 psf 2 15 lb. Where snow isn t a problem the. Gypsum board 2 0 psf 5 8 in.

Joist span bridging girder load width half joist span live load on roof local requirements for wind and snow. Dead loads consist of the permanent construction material loads comprising the roof floor wall and foundation systems including claddings finishes and fixed equipment. Of ceiling 1 5 psf 3 15 lb. 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 includes the self weight of walls floors beams columns etc. Dead loads depends upon the unit weight of the material. Load limits on the roof of a building dead loads. The dead load on a roof is the weight of the roof structure itself along with any permanently attached.

Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products. 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. 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. Building materials are not dead loads until constructed in permanent position.

Dead loads are the permanent loads which are always present. And also the permanent fixtures present in the structure. The following table provides typical weights dead load self weight for various roofing materials.