For the average shingle, you should be using 2 nails per square.
This is assuming you are using the standard shingle size that is not cut.
- To start installing shingles, line up aluminum drip edge flush with the edge of the roof and make a pencil line at the top on each end of the house.
- Using the chalk line, snap a line between the two marks to get a straight edge.
- Pull the drip edge down about a half-inch from that line to create a gap between the drip edge and the fascia board.
- Nail the drip edge in place using 1¼-inch galvanized roofing nails and a hammer.
- Repeat steps for gabled ends, installing the drip edge up the roof along the gable.
- Layout 30-lb. asphalt roofing felt paper and nail it in place using 1¼-inch galvanized roofing nails.
- To layout, the design for the shingles, begin at the bottom of the roof and place a tape measure ½ inch from the edge of the roof to ensure the shingles overhang the drip edge.
- Mark 12 inches up on the roof for the first course of shingles, then mark every 5 inches all the way up the roof to set your reveal. Do this on both sides of the roof.
- Using the chalk line, snap a straight line on each 5-inch increment.
- Use the chalk line to snap a straight line vertically every 6 inches.
- Install a starter course by cutting off the three tabs on a shingle, leaving only the top tar section.
Should Shingles Overhang the Drip Edge?
Overhanging shingles over the drip edge about a half inch can help with surface tension. Plan out how you will lay your shingles beforehand, here’s how we recommend you approach your installation.