They are typically 36 inches long in total.
How to install 3 tab shingles on a roof.
Cut your starter course shingles if necessary.
Before you go out and purchase your 3 tab shingles you will first need to figure out how many of them you will need.
Three tab shingles are usually 36 inches long.
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Measure your roof so you can be sure you buy the right amount of shingles.
Some roofers install shingles so the cutout lines describe a slight angle as you look from the bottom to the top of the roof.
They are designed to be installed with a 5 inch reveal.
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Architectural shingles are another option and are installed the same way as 3 tab shingles but give your roof more of a 3 d effect due to their varied shapes.
You will simply need to add up the total square footage of your roof and divide it by 100.
One square package is equal to 100 square feet of roof.
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3 tab shingles are the most common type of shingle.
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When you reach the end of a row cut the last.
Installing three tab shingles 1.
However most people prefer the cutout lines to be aligned so they make straight vertical.
Each tab is 12 inches.
Then begin nailing the shingles to the roof working in rows and starting at the edge of the roof.