How To Mark Out Roof For 3 Tab Shingles

To attach a 3 tab shingle align it with the layout line and drive nails 1 2 inch above the cutout slots including the half slots at each side.

How to mark out roof for 3 tab shingles.

Use the chalk line to snap a straight line vertically every 6 inches. Measure up the rake edge from the drip edge 12 inches less 3 4 and make a mark the 3 4 allows for the starter strip overhang the drip edge. However make sure that you do not nail into the tar strip. 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.

Shingle about 1 2 way up the slope then measure from the ridge down to the shingles. Alignment slits across the top edge and half slots along the edges. Use these to line up adjacent shingles and successive courses. Continue working up the roof subsequent courses overlap ping the preceding by 2 4 51 102 mm depending on the type of underlayment being applied.

In addition shadow marks may run the length of each shingle near the top of the slots. Repeat this on both sides of the roof. Repeat this on the other rake edge. If one side is lower then fudge each row a bit so they come out even when you get to the ridge.

See figure 1 directions for applying malarkey 3 tab shingles. If you are using a power nailer drive nails by squeezing the trigger and bouncing the nailer s tip onto the shingle. These are meant as an aid to horizontal alignment. Measure up the rest of the rake edge to the peak and make a mark every 5 inches.

Drive a nail at one end first then drive the others. A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. Most three tab asphalt shingles include 1 2 in. However shingles are packaged in a way that they are light enough for the average person to carry around.

As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. Also place a nail 2 inches from each end of the shingle in line with the other two.