How To Figure Roof Size For Shingles

To calculate the size of the roof you need to measure the size of the roof as if it were flat account for roof pitch calculate square footage and finally determine how many squares of material are required for the roof the calculator above can handle all of this simply enter the length width and pitch and it will determine the size of the roof in squares.

How to figure roof size for shingles.

You will need to express this size in terms of square feet. The dead air space between the metal roof and shingle roof will work as a barrier to dissipate heat. For example you may need to pay double the cost in asphalt shingles if your roof has a 12 12 pitch a rise of 12 inches 30 cm per 1 foot 0 30 m as opposed to a 4 12 pitch. Next divide your total area by 100 to calculate the number of roofing squares you ll need to buy.

Outside of the u s a degree angle is typically used. 1 roof square 100 square feet. I typically begin by counting the of shingles from left to right which gives me the total width of the section in feet. And then i will count the of rows of shingles between the gutter and the peak of the roof and then divide the number by 2 which gives me the height measurement.

If you are going to use shingles build a pitched roof over the mobile home. The shingle count method of the old shingles have not been removed from the roof you can easily use this method to calculate the number of shingles you are going to need. It should have a curved roof. Once you have these measurements you will need to calculate the area of the roof and then you can see how many shingles you will need.

Note that in the last 3 4 years costs of roof shingles and many accessories have gone down by an average of 18 20 currently the us national average for benchmark architectural shingles is around 74 51 square or 25 per bundle. The first step in a free roofing estimate is measuring the roof dimensions. The length l times the height h of a triangle is twice its area a2. Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.

Calculate your roof pitch to determine how steeply your roof slopes. Once you work through the basic triangle we will review a typical roof and how to apply some simple math to calculate how much material you will need for a roof used in our hypothetical example. A mobile home roof should not be flat. Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used.

You should use rolled roofing on a flat roof over lap 1 2 the width of the rolled roofing.