Measure the length and width of the roof.
How to lay felt on flat roof.
Begin laying out your roofing felt by starting at one corner.
Step 2 placing the felt.
Once you get to the edge of the roof or when the roll runs out start nailing the felt.
Where a roll ends and a new one is begun the two rolls should be overlapped by.
In order to lay felt on a flat roof you will need to gather the following materials and tools.
How to lay felt on a flat roof.
Large head clout nails see tips cold applied roofing felt adhesive solar paint if required.
When you arrive at the rake the paper should be cut flush with a knife and then adjusted to line up with the chalk line.
Step 1 prep work.
Ladder utility knife tape measure trowel 30 pound roofing felt also known as 30 roofing felt plywood planks galvanized nails roof felt adhesive e g.
Check to ensure the roof is in good enough condition to walk over.
Climb up on the roof using a ladder.
Unlike a steep roof laying roofing felt on a flat roof is easy for even novice do it yourselfers.
Lay the roll of roofing felt on the corner and let it overhang by three inches on each side.
Roll it out along the edge keeping a three inch overhang.