It needs to be nailed down with each nail spaced roughly 6 inches apart.
How to install roll roofing over shingles.
Nail only its top edge the part that is bare of mineral coating.
This aluminum flashing protects the edges of the roof sheathing.
Do not use the eaves as a guide instead because they can be uneven.
Use a trowel to spread roofing cement over half or more of the strips.
Use a starter strip or cut pieces for a starter course.
Attach with nails along the top edge of the strip.
Then set the first course in the cement so it overhangs by about 1 4 inch.
Step by step roll roofing installation 1.
Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the.
Rip cut the starter strip or starter pieces so that they butt up against the second course of existing shingles and are even with the front edge of the existing roofing.
Snap a chalk line as a guide for the first layer roofing.
Install roll roofing measure 35 inches up from the eaves at several intervals along the roof and mark them.
Install a drip edge around the perimeter of the roof.
After the eave drip is in place it is time to lay the roll roofing.