Multiply the number of starter shingles required by 5 to determine the number of nails required to fasten starter course.
How many shingles will i need for my roof.
3 determine the bundles of shingles needed to cover the roof.
Divide the total footage by 100 to determine the number of squares in the roof.
Waste is calculated at 7 5 for a gable roof and 15 for a hip roof which are typical in the roofing industry.
When you are using 3 bundles for a square you will be getting 29 standard shingles in each bundle.
Asphalt shingles are typically packaged with this in mind but if a package of shingles covered an entire 100 square foot square it would be too heavy to handle.
To determine how many will be needed for starters and edges measure the entire perimeter of the roof and divide it by three.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
A square of shingles is the number of shingles needed to cover 100 sq feet of roof area.
Since there are twenty six shingles in a bundle of twenty year shingles which is fine for starters and edges divide the result by twenty six.
There are three bundles of shingles for each square.
It takes 3 bundles to cover a square if you use 3 tab shingles the most common type.
However shingles are packaged in a way that they are light enough for the average person to carry around.
It is common to use 3 bundles to a square of 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.
However if you are using heavier shingles you will require 4 to 5 bundles for a square.
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.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
So most popular shingles are sold such that three bundles are needed to cover one square of roof area.
This is based on 80 shingles per square.