How To Do Roofing Felt

Apply pressure and chisel away at it until it comes loose.

How to do roofing felt. This video contains the. If your roof pitch is 3 12 or 4 12 multiply by 1 25. These thick layers of roofing felt are installed by heating the back of the felt with a butane torch and then carefully applying it to the roof. 1 materials for felting a flat roof.

Remove old felt from the roof with your hands and a putty knife. Snap a chalkline 32 inches above the top edge of the wsu or use the lines on the felt as guides. Grab loose pieces of felt and pull them off the roof with your hands. 2 step by step guide for felting a flat roof.

Unroll the felt so that the lines are facing upward. Prepare the second layer. Roofing felt comes in rolls that feature pre marked lines 2 to 3 inches from the top and bottom edges. Taking the time to properly prepare the sheathing will make all the difference in how quickly and easily the felt paper is installed.

For roof pitches of 5 12 to 7 12 use a factor of 1 3. If you use the lines as guides for installing shingles measure up from the drip edge to confirm that you stay parallel. Installing the roofing felt does take care but can go very quickly. Lay down felt and secure to roof.

For pieces that aren t coming loose press a putty knife underneath it. This correction factor will take into account the greater area of the roof due to the pitch. Add the second layer. Overlap felt courses at least 4 inches.

Roofing felt is sold in rolls and the product label will give information on the area contained. Most pros use this line to begin shingling working left and right toward the rakes. Watch our step by step video showing how to felt a shed roof with expert advice and top tips to help you complete the job with confidence. Repeat until roof is covered.

Multiply the total area determined in step one by a correction factor to account for the roof pitch. Divide the area of your roof by the area of the felt rolls you plan to use and allow an approximate 10 extra for waste. Next find the center of the roof at the top and the eave then snap a vertical chalk line. Pull out nails that are holding felt to the roof using the sharp end of a claw hammer.