How To Figure Number Of Shingles For Roof

Determine the total number of squares.

How to figure number of shingles for roof.

A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. Place the end hook of the tape on the corner and run it all the way to the opposite corner of the house. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

Measure both the width gable side and the length eave gutter side. 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. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. Measure the length and width of each portion of the roof multiply length by.

There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these. Divide the total footage by 100 to determine the number of squares in the. Starter strip the perimeter of the roof in lineal feet. Work out the number of squares on your room by dividing the square footage of your roof by 100.

Mark this down as the number of squares. This figure is very important and should be written down on a piece of paper. 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. Measure the length and width of each rectangular or square area of the roof and multiply the length times the.

Find the square footage of the roof. Measure the length of the bottom of any triangular shaped portion of the roof. Outside of the u s a degree angle is typically used. Mark the center of the bottom.

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. Step 3 work out number of bundles. Asphalt shingles range in price from about 25 per bundle for a standard 3 tab style to around 50 75 or more for an upgraded architectural style. To do this you need to note that one tab will be equal to 1 foot.

Total shingles needed the number of packs needed to cover the roof but does not add additional packs needed for ridge capping and starter strips. Measure your roof accurately use a measuring tape preferably 50 or 100 feet long and get exact ground dimensions of your house. How to figure how many squares are needed for shingles step 1. To accurately calculate the area of your roof you must first determine its slope or pitch.

A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. However shingles are packaged in a way that they are light enough for the average person to carry around. Roof area total square footage of the roof.