Roof Weight Analysis

Determine the transient load of the roof.

Roof weight analysis.

You need to supply the following information. After moisture and water weight are taken into account the total weight of the garden is approximately. Material composition roofing felt 3 ply 1 5psf felt 5 ply 2 5psf rigid insulation temlock 1 thick 1 2psf cord 1 thick 0 7psf gold bond 1 thick 1 5psf styrofoam 1 thick 0 2psf foam glass 1 thick 0 8psf rigid fiberglass 1 thick 1 5psf roll or batt insulation rock wool 1 thick 0 2psf glass wool 1 thick 0 06psf alpol 0 1psf. If it is necessary for workers to access the roof for snow removal evaluate the loads exerted on the roof total weight of snow workers and equipment used compared to the load limit.

To calculate the weight of snow on a roof use the first two sections of our snow load calculator. Photo by andrew wutke. The venny green roof melbourne. The venny green roof has shallow substrates on two types of roof the first roof is on shipping containers and is designed for a dead load of 250kg m 2 and live load of 100kg m 2.

The dry weight of the soil mixture and lumber is. Which is equivalent to 65 lb ft. Snow load is the weight of the snow as generally reported in pounds per square foot. This is all of the natural stresses imposed upon a roof such as snow loads rain loads and wind loads.

The weight per 100sq ft kg range is 85 110. This changes the lumber weight from 315 lb to 387 lb total. You can enter these values in any units you d like including meters and feet. This is highly regional as weights of snow for example range from 10 to 300 pounds per square foot based on moisture and volume of the snow.

Which is equivalent to 15 lb ft. 4860 lb 387 lb 5247 lb. Structural engineers use the solar panel roof load calculator to come up with the correct load capacity of the roof material. For example the weight per square footing for asphalt shingle weight per 100sq ft lbs range is 190 250.

The weight of the snow will vary depending on its water content. The second trussed roof is designed for a dead load of 160kg m 2 and a live load of 40kg m 2.