Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed.
Square feet of roofing shingles.
A square is the number of shingles it would take to cover 100 square feet of roof area with each row of shingles covering the tabs of the layer below it.
Instead a square is a term of measurement all its own.
1 roofing square 9 290304 m 3.
10 feet by 10 feet 100 square feet.
Each square will need three bundles of shingles to cover it.
2 feet x 50 feet 100 square feet or 1 roofing square 50 feet x 50 feet 2500 square feet so 2500 100 25 roofing squares.
Each plywood sheet is 4 x 8 feet or 32 square feet which coincidentally is almost exactly equivalent to the coverage of one bundle of traditional three tab shingles.
The square footage of a roof is normally measured in squares of 100 feet.
1 ft x 1 ft.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
Using an international foot of exactly 0 3048 meters length.
This is simply 100 square feet of roof.
Imagine how cumbersome it would be to calculate by the square.
So in a sense we re talking about square feet but using this unit makes it easier to calculate the footage or required materials and cost of a roofing project.
The most common roofing materials used in the united states include shingles membrane roofing and ceramic tile all of which have different life spans.
Quick roof cement 3 tab green related products timberline hdz charcoal algae resistant laminated high definition shingles 33 33 sq.
Find the total square footage of your roof by multiplying the width by the length and then divide that number by 100 and you will get the number of squares you need to cover.
Bundles of roofing material per square.
Asphalt roof shingles roofing shingles architectural shingles class a roof shingles 4 in.
Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.
To find the squares divide the overall roof area by 100 and then round up.
Most composition shingles are 3 bundles per square most of the 40yr composition shingles are 4 bundles per square some 5 or more wood shakes 5 bundles per square wood shingles.
If it s a re roof project and you have access to the original paperwork from the last shingle installation that may be useful in showing the roof area.
One roofing square is equal to 100 square feet.
However shingles are packaged in a way that they are light enough for the average person to carry around.
100 square feet 1 roofing square 9 290304 cubic meters si unit.