How To Do Roofing Felt

Multiply the total area determined in step one by a correction factor to account for the roof pitch.

How to do roofing felt.

Pull out nails that are holding felt to the roof using the sharp end of a claw hammer. Snap a chalkline 32 inches above the top edge of the wsu or use the lines on the felt as guides. Lay down felt and secure to roof. If you use the lines as guides for installing shingles measure up from the drip edge to confirm that you stay parallel.

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. Roofing felt is sold in rolls and the product label will give information on the area contained. Unroll the felt so that the lines are facing upward.

Installing the roofing felt does take care but can go very quickly. Overlap felt courses at least 4 inches. Remove old felt from the roof with your hands and a putty knife. For roof pitches of 5 12 to 7 12 use a factor of 1 3.

Prepare the second layer. Add the second layer. This video contains the. 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.

For pieces that aren t coming loose press a putty knife underneath it. 1 materials for felting a flat roof. Next find the center of the roof at the top and the eave then snap a vertical chalk line. 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.

This correction factor will take into account the greater area of the roof due to the pitch. Apply pressure and chisel away at it until it comes loose. 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. If your roof pitch is 3 12 or 4 12 multiply by 1 25.

Step 2 position the first row of roofing felt flush on the bottom with the edge of the gutter apron. 2 step by step guide for felting a flat roof. The felt keeps the roof deck dry before shingles go on protects against wind driven rain as shingles fail and increases fire resistance. Grab loose pieces of felt and pull them off the roof with your hands.