Each tab is 12 inches.
How many tabs should you use on a roof.
This is a standard three tab shingle.
Here s what a three tab shingle looks like.
However placement of the nails is the most important in any roofing job.
Generally regular shingles are cut straight through the tab.
Standard roof installation requires four nails per shingle.
You make your own cap shingles if you re roofing material is the standard three tab shingle.
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.
To use this method you will need to measure the length of the eaves on each of the roof planes.
To do this you need to note that one tab will be equal to 1 foot.
Use a heavy duty utility knife to separate the shingles into thirds by cutting them at each tab.
The rationale behind the number is that in most cases four nails are the right number of nails to do a quality job.
They are designed to be installed with a 5 inch reveal.
If you are using three tab shingles however you can cut shingles to make your own.
This can be done from the ground by taking the measurement of the length of the house and adding the length of the overhangs to it.
How to cap an asphalt shingled roof.
Three tab shingles are usually 36 inches long.