Fix the roof shingle so that the lower end of the headlap is aligned with the top of the 1st row shingle cut out.
Roof shingles cut by insatllers.
Inside and outside corners available.
Install the starter strip which is just a backing for the first visible row of shingles.
It stops water from getting through to the roof at the gaps between shingles and at the notches between tabs.
Butt a full shingle up against the cut shingle and nail into place.
Use 4 nails per shingle and 6 nails on the prevailing windward sides of the roof as wind resistance nailing.
When the shingle row gets to the dormer they keep going and maintain the regular straight row of shingles.
It s critical to flash around plumbing stacks and attic vents because they are the most common roof penetrations.
For the 3rd course shorten one tab.
Shorten the shingle of a tab.
This video demonstrates the proper installation technique for installing roofing valleys.
Start with a complete shingle and continue fitting the roof shingles on the first row.
The open woven and closed cut methods are demonstrated.
Cut your last shingle on each row to size repeating all the way to the ridge.
Once you ve reached the ridge bend the shingle over the ridge so that each side is equal and nail it into place with a single nail on each side.
The 3 tab asphalt shingle also called a composition shingle or fiberglass shingle is the most common type of roofing shingle.
You can save a few bucks using pre cut starter strips instead of using a whole shingle.
From the ground it looks as the shingles meet in a clean line in the center of the valley.
Repeat this basic pattern alternating shingles across the roof working toward the right side using the chalk line to keep the shingles straight horizontally.
Closed cut shingle valley installation.
If the eyebrow curves dramatically this is best done with thinner more flexible traditional shingles over laminate shingles.
One layer of shingles actually crosses the valley beneath the other.
Other composition shingles such as architectural and random cutouts are installed using most of the same techniques.
Closed cut valleys are installed quickly and have a cleaner sharper look than woven valleys.
2nd course and following ones.
Cut installation time by more than half.
Roofers install these dormers as they install the rest of the roof.
Makes shingle installation more efficient and economical while retaining the authentic look of individual shingles.
Do the same with the next shingle continuing this step until you get to the far edge of the ridge.