Roof Dead Load

2 2 3 assessment of dead load.

Roof dead load.

The structure of a roof that supports solar photovoltaic panels or modules shall be designed to accommodate the full solar photovoltaic panels or modules and ballast dead load including concentrated loads from support frames in combination with the loads from section 1607 13 5 1 and other applicable loads. Dead load of attic floor when floored 20 lbs. Pitched roof measured on slope clay tiles plain 0 65 kn m. L r l o r 1 r 2.

I just looked at a 12 12 pitched roof and if you compensate for the pitch the flat projected dead load is increased by about 25. Pitched roof measured on plan timber trussed rafters. Live load on attic floor local requirements. 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.

Overturning should also consider roof uplift forces unless a separate load path is designed to transfer those forces. Where d is floor dead load. Thick 1 5 psf dead loads. Where l r shall not be less than 12 psf and not more than 20 psf.

Concrete tiles plain 0 75 kn m. Roof live load may be reduced by the following equation. 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 t effect of material temperature h hydraulic loads from soil f hydraulic loads from fluids. R 1 1 for a t less than or equal to 200 psf r 1 1 2 0 001 a t for between 200 psf and 600 psf.

Arch 331 note set 13 1 s2014abn 2. Roof live load reduction. A table of roof material weights including sheathing insulation and other decking. Roof dead load calculation msquared48 structural op 11 aug 09 03 57.

Dead load is the vertical load due to the weight of permanent structural and non structural components and attachments of a building such as walls floors ceilings permanent partitions and fixed service equipment etc. Dead load of roof of wood shingle construction 10 lbs. Clay tiles interlocking 0 45 kn m. When figuring total vertical loads for gravity or seismic loads does anyone adjust the roof dead loads for the slope of the roof.

When used for storage only dead load of attic floor not floored 10 lbs. Popular pages pole framing post connection post embedment post frame foundations rafter installation pole.