To secure the roof valley flashing nail it down carefully.
Install roof shingles valley.
Draw a 2 inch self stick flashing down the center.
Cut the tabs off of one shingle and lay it on the bottom edge with a 1 4 inch overhang.
Trim the shingles to these lines and cut a 5 cm triangle off the top corner to direct the water into the valley.
Ensure ice and water protector has been installed along the valley first.
Only nail at the edges with only enough nails to.
Always install flashing around a chimney and other valleys where two roof planes meet as these areas are more prone to leaks if not protected.
Nail the drip edge in place using your hammer and roofing nails.
Quick guide how to install an open 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.
How to do it determine cuts.
Starting at the bottom edge of the valley begin laying down the shingles.
Snap two chalk lines from the ridge to the eaves 8 cm apart increasing in width by 1 cm per meter towards the eaves.
Nail the shingles 5 cm back.
Snipping off the corners of.
Others start with a 3 inch wide.
Place a piece of sheet metal under the shingles to make sure you will not damage the flashing.
Some roofers cut the shingles parallel to the flashing s center ridge.
Start by laying all shingles on one side of the roofing and stretch it across the valley.
Install new flashing metal flashing is often called drip edge along the bottom of the roof near your gutters.
Place a roofing nail in each corner and one in the center on its appropriate side.
Stretch it about 12 inches across the centerline.
Fasten the shingles about 6 inches away from the centerline on both sides.