Roof Weight Per Square Foot

Roofing asphalt shingles 2 5psf wood shakes 3 0psf roll roofing 1 0psf asphalt shingles approx 1 4 2 0psf cement asbestos shingles 3 8 4 0psf clay tile add 10psf for mortar 9 0psf ludowici 10 0psf roman 12 0psf slate 1 4 10 0psf spanish 19 0psf wood 1 3 0psf cement tile add 6psf for mortar 10 0psf.

Roof weight per square foot.

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Yet if you do the math and compare asphalt shingles over metal roofing asphalt can weigh 5 lbs. Ft kilograms per square meter kg m 2 source. Asphalt shingles 3 tab or strip 1 95 lbs.

Three tab asphalt shingles weigh 50 80 pounds per bundle. A bundle of three tab asphalt shingles weighs between 60 and 80 pounds but this may vary depending on the quality and type of shingle. Per square foot a 4 12 lbs. While most people think about metal roofing is heavier compared to other materials.

Sorry to see that you are blocking ads on the engineering toolbox. It is often compared to slope but is not exactly the same. Generally three bundles of shingles are enough to cover 1 square of roof 100 square feet which can weigh anywhere from 180 to 240 pounds. These are the weights of typical actual products.

Here is a list of sample roofing material weights per 100 square feet. Aluminum standing seam 70 pounds. Weight of roofing materials. Aluminum shingles 45 pounds.

The weight of a bundle of shingles depends on the type of material you re dealing with. 1 lbm ft2 4 88 kg m2 note. In fact with many heavy roofs fire fighters will not go inside the home to fight the fire if it has avery heavy roof on top. A single 26 gauge panel weighs only 0 88 lbs.

The weight of truss rafter must be added to calculate the dead load of the roof. A 12 inches metal roofing panel weighs for about 10 lbs. Shingles are sold in bundles that will cover a certain square footage of your roof usually 33 3 square feet. Steel shingles 80 pounds.

You can also find the load per square meter or square foot of roofing by opening the advanced mode. The dead load of a typical asphalt shingled wood framed roof is about 15 pounds per square foot. Outside of the u s a degree angle is typically used. A clay tiled roof may have a dead load.

Snow load thickness density the result snow load or the pressure exerted by the snow has the units of kn m or lbs ft. Architectural asphalt shingles weigh 65 80 pounds per bundle. Steel standing seam 120 150 pounds. The load increases with the use of heavier roofing material.

A low weight roof also lessens the risk of a roof collapse if there is a fire inside of the home which reaches the attic. If you want to calculate these values by hand use the following formulas. The weights of other actual products of the same type may vary.