You will simply need to add up the total square footage of your roof and divide it by 100.
How to shingle a roof 3 tab.
This will help determine how the shingles will lay on the roof width.
One square package is equal to 100 square feet of roof.
They are typically 36 inches long in total.
Place nails in the three tab shingles about 3 4 inch 1 8 centimeters above the cutouts near where the tab meets the upper part of the shingle.
Measure the length of a shingle as it lies across the roof.
Before you go out and purchase your 3 tab shingles you will first need to figure out how many of them you will need.
3 tab shingles are the most common type of shingle.
Measure your roof so you can be sure you buy the right amount of shingles.
In all use four nails per 3 tab shingle.
Other composition shingles such as architectural and random cutouts are installed using most of the same techniques.
Find 3 tab roof shingles at lowe s today.
The others offer sculpted edges and 3 dimensional finishes.
Roofing contractor jack viera demonstrates installing three tab asphalt roof shingles.
Also place a nail 2 inches from each end of the shingle in line with the other two.
The winds or amount of sun the roof is exposed to may make the heavier dimensional shingle a better choice too.
However make sure that you do not nail into the tar strip.
Expect to re shingle more frequently with a 3 tab than with a higher quality shingle.
If your roof s width is not an even multiple of the shingle s length you will have a partial piece on one end of each row.
Most asphalt shingles are 3 feet 91 4 centimeters in length.
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.