How To Figure Number Of Shingles For Roof

Find the square footage of the roof.

How to figure number of shingles for roof. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Measure both the width gable side and the length eave gutter side. Ridge length top ridge plus the 4 hips in lineal feet. Measure the length and width of each portion of the roof multiply length by.

Mark this down as the number of squares. Measure the length and width of each rectangular or square area of the roof and multiply the length times the. Outside of the u s a degree angle is typically used. Starter strip the perimeter of the roof in lineal feet.

Place the end hook of the tape on the corner and run it all the way to the opposite corner of the house. Measure the length of the bottom of any triangular shaped portion of the roof. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Mark the center of the bottom.

To do this you need to note that one tab will be equal to 1 foot. How to figure how many squares are needed for shingles step 1. Step 3 work out number of bundles. Determine the total number of squares.

To accurately calculate the area of your roof you must first determine its slope or pitch. This figure is very important and should be written down on a piece of paper. Divide the total footage by 100 to determine the number of squares in the. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these. A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. You will then have to get the measurement of the rake of the roof. Measure your roof accurately use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house.

Determine the bundles of shingles. If the existing shingles are standard 3 tab shingles you can get this measurement by taking note of the number of tabs along the eaves and ridges then determine the length in feet. 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. However shingles are packaged in a way that they are light enough for the average person to carry around.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. How many bundles of shingles will you need the average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square. Work out the number of squares on your room by dividing the square footage of your roof by 100.