Floor Loading Standards Residential

If the floor trusses support load bearing walls that carry upper level floor and or roof. However if the attic is intended for storage the attic live load or some portion should also be considered for the design of. These loads vary in magnitude position and duration but the building codes also require a designated live load be applied to every square foot of floor system.

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If there s wall board covered ceiling suspended from the underside of that floor the dead load increases to about 10 pounds per square foot.

Floor loading standards residential.

They are legally backed by the engineering profession. Dead loads cont d typical weights of horizontal systems roof construction asphalt shingles 15 psf pounds per sq. Different design methods are used but they typically defined the load cases or combination stress or strength limits and deflection limits. D dead load l live load l r live roof load w wind load.

Foot ceiling construction gypsum sheetrock finish 10psf floor construction carpet or vinyl 10 psf hardwood floor 12 psf ceramic tile 15 psf. For the bottom floor of a single story residence no basement. Total dead loads 6 2 2 8 1 0 10 0 psf live load 20 psf. Loads should be determined in accordance with this chapter.

In the case of a residential structure this minimum standard live load factor for main living areas is 40lb ft2 1 9 kpa. A typical wood frame floor covered with carpet or vinyl flooring has a dead load of about 8 pounds per square foot. 2attic loads may be included in the floor live load but a 10 psf attic load is typically used only to size ceiling joists adequately for access purposes. The dead load on a floor is determined by the materials used in the floor s construction.

May be less depending on roof slope. By contrast the span charts in as1684 are limited only to residential floor live loads of 1 5kpa 1 8kn. Load types loads used in design load equations are given letters by type.