It is best placing metal flashing or a scrap piece of wood under the shingle you will be cutting as not to cut the shingle underneath.
How do you shingle a roof valley.
I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner.
Step 1 snap chalk line.
Start by overlapping a starter from both sides of the valley at the bottom.
The next one goes on the low side.
Step 3 apply mineral roofing felt.
Step 4 determine shingle lines.
Before you begin laying down the shingles it must be protected with a metal flashing.
How to shingle a valley roof.
Then your first shingle goes on the side you are going to cut.
This flashing must be about 18.
To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof.
Step 2 install metal flashing.
Then starting at the base of the.
You want to lay the shingles from the bottom to the top of the valley.
Snipping off the corners of.
To secure the roof valley flashing nail it down carefully.
Laying shingles over the starter row and working up.
Ensure ice and water protector has been installed along the valley first.
Others start with a 3 inch wide.
When you get to the valley cut the shingles along the chalk line.
Step 5 install.
Some roofers cut the shingles parallel to the flashing s center ridge.
Only nail at the edges with only enough nails to.
Weave and cut the valley on the highest side of the roof.