How To Roof A House With Three Tab Shingles

Row 7 begins with a full 3 tab shingle.

How to roof a house with three tab shingles.

Secure the horizontal flange to the roof deck using two nails. 320 nails will be needed to install a square of standard 3 tab shingles assuming four nails per shingle and 80 shingles per square. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles. Pattern curling is caused by the roofer having to lift the end tab of every other shingle to install the last shingle nail at the end of the next shingle.

Every 5 inches make a new mark until you get to the rop of the roof. Place it so the tab of the end shingle covers it completely. Drive a nail at one end first then drive the others. Using the chalk line snap a straight line on each 5 inch increment.

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. The average 3 tab shingle needs four nails per shingle. Do not fasten the flashing piece to the vertical wall. Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.

Begin row 5 with the 1 tab shingle and row 6 with the 1 2 tab shingle. Install a starter course by cutting off the three tabs on a shingle leaving only the top tar section. A square of shingles is the number of shingles needed to cover 100 sq feet of roof area. Repeat this on both sides of the roof.

If you are using a power nailer drive nails by squeezing the trigger and bouncing the nailer s tip onto the shingle. Use the chalk line to snap a straight line vertically every 6 inches. Do this on both sides of the roof. Use the chalk line to snap a straight line vertically every 6 inches.

High wind areas and other types of shingles may need more. Begin row 4 with a shingle cut in half 1 and tabs and complete that row. Because the bending can stress and deform shingles especially in cold weather the ends of those shingles may warp over time creating a prominent pattern on the roof. This will allow the flashing piece to move independently of any differential expansion and contraction that may occur between the roof deck and the wall.