Minimum Roof Dead Load

Dead loads depends upon the unit weight of the material.

Minimum roof dead load.

Live load on attic floor local requirements. The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. Design stresses and deflection should be increased by a magnification factor for wood members that are not cambered such as sawn lumber and timbers. V earthquake loads dead loads.

Dead loads includes the self weight of walls floors beams columns etc. The minimum recommended camber for roofs is an amount equal to 1 5 times the dead load deflection. And also the permanent fixtures present in the structure. Minimum roof live load is 30psf.

When used for storage only dead load of attic floor not floored 10 lbs. County amendment d snow loads. The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings. Dead loads are the permanent loads which are always present.

Section 1603 1 3 ground snow load pg minimum ground snow load shall be 30 psf county amendment minimum flat roof snow load pf if applicable. 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. C roof live loads. Where uniform roof live loads are reduced to less than 20 psf 0 96 kn m 2 in accordance with section 1607 13 2 1 and are applied to the design of structural members arranged so as to create continuity the reduced roof live load shall be applied to adjacent spans or to alternate spans whichever produces the most unfavorable load effect.

The load increases with the use of heavier roofing material. Dead load of roof of wood shingle construction 10 lbs. Dead load of attic floor when floored 20 lbs. B any special additional superimposed dead load if applicable.

Load types loads used in design load equations are given letters by type. The dead load of a typical asphalt shingled wood framed roof is about 15 pounds per square foot. D dead load l live load l r live roof load w wind load s snow load e earthquake load r rainwater load or ice water load. A clay tiled roof may have a dead load.

Used but they typically defined the load cases or combination stress or strength limits and deflection limits.