Roof Weight Per Square Foot

Yet if you do the math and compare asphalt shingles over metal roofing asphalt can weigh 5 lbs.

Roof weight per square foot.

B deck is 1 1 2 deep and is available in galvanized and prime painted finishes. Sorry to see that you are blocking ads on the engineering toolbox. 1 lbm ft2 4 88 kg m2 note. Aluminum shingles 45 pounds.

Aluminum standing seam 70 pounds. It is often compared to slope but is not exactly the same. Snow load thickness density the result snow load or the pressure exerted by the snow has the units of kn m or lbs ft. Pounds per square foot lb ft 2 pounds per square 100 sq.

The load increases with the use of heavier roofing material. You can also find the load per square meter or square foot of roofing by opening the advanced mode. Per square foot a 4 12 lbs. While most people think about metal roofing is heavier compared to other materials.

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. Verco hsb 36 stands for high shear b deck 36 wide. Ft kilograms per square meter kg m 2 source. 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.

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. These are the weights of typical actual products. The weights of other actual products of the same type may vary. Steel shingles 80 pounds.

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. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. If you find this website valuable and appreciate it is open and free for everybody please contribute by. The dead load of a typical asphalt shingled wood framed roof is about 15 pounds per square foot.

Weight of roofing materials. A 12 inches metal roofing panel weighs for about 10 lbs. The weight of truss rafter must be added to calculate the dead load of the roof. In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.

Outside of the u s a degree angle is typically used. Normally b decking is used in short to medium span conditions ranging from 3 feet to 10 feet in distance. Here is a list of sample roofing material weights per 100 square feet. Asphalt shingles 3 tab or strip 1 95 lbs.

Steel standing seam 120 150 pounds. 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. A single 26 gauge panel weighs only 0 88 lbs.