How To Measure Weight Of Snow On Roof

To figure out the load on your roof take the depth of snow in feet and multiply it by the weight of a cubic foot of snow.

How to measure weight of snow on roof.

If the snow weighs 10 pounds per cubic foot and there are 1 5 feet on the roof each square foot of the roof is getting 15 pounds of pressure. Calculating snow load on your roof depends on two factors. Unsurprisingly wet snow is the heavy stuff. 4 multiply the depth of snow in feet by the weight from step 3 of a cubic foot of snow.

If you live in the us our snow load calculator compares the total weight on your roof with the permissible load calculated according to the standards issued by the american society of civil engineers regarding the minimum design loads for buildings and other structures asce7 16. This down bearing pressure can cause the roof to bow and result in ponding under the roof structure. Multiply the depth of snow by the weight. Rain sleet and ice add to the weight of existing snow.

To find volume measure the length. However if the weight of snow will be predetermined as well as the loading capacity of the roof collapse can be prevented. If it snows 5 of wet snow it will weigh about 12 5 pounds. The volume of snow is a major factor that contributes to the total weight.

Calculating snow load on roof. As snow falls it can accumulate on your flat roof putting unnecessary weight on the structure. 1 25 times 9 comes to 11 25 so the amount of pressure the snow is exerting on the ground is 11 25 pounds per square foot multiply the area of the roof in square feet by the snow load. Collect 0 028 cubic metres 1 cubic foot of the snow on the ground choosing a sample that is representative of the overall snow pack and weigh it.

Let s say our snow weighed 9 pounds per cubic foot. If your roof is 1 000 square feet the total snow load is 15 000 pounds of snow. To measure the snow loading capacity of the roof the area of the roof should be determined by multiplying the length and the width of one face of a gable type roof and multiplying the result by the number of faces. Calculate the snow volume.

Calculating the weight of snow is useful when you need to know the total weight it adds for example to calculate the weight on a roof. Since snow falls at slow steady speeds large quantities of snow can fall on the roof resulting in bowing. It is not advisable for a person to climb onto a snow or ice covered roof to remove accumulations. With this information you re now likely wondering about the weight of snow load on your roof.

On average two feet of snow can equal up to 19 tons of weight on your roof which can significantly weaken the structure. For example 4 kg per cubic metre x 0 38 m 1 52 so the. This quantity of snow may weigh up to 91 kg 20 lb depending on how fluffy or dense it is.