How To Put Roofing Felt Down

Or you could paint it over with a rubber mastic liquid but this could be more expensive than a second covering of felt.

How to put roofing felt down.

It will break down in sunlight and with large amounts of ongoing. Some roofers prefer to attach felt underlayment with 1 inch roofing nails or special nails with plastic washers but most codes allow staples which are easier to drive. Lightly heat the flashing and the end of the roofing sheet enough to begin melting the bitumen. Step on the end of the sheet pressing down hard to force the melted bitumen into the gap between the flashing and the roof.

Use a construction stapler or a hammer. Hold the gun at a 45 degree angle with the nozzle pointed downwards. Pull the trigger of the gun and move the nozzle around the circumference of each nail. 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.

Before applying roofing you ll need to cover the sheathing with roofing felt also often called tar paper most local codes call for using 30 pound felt. Press down on the end of the bitumen to bind it to the flashing. I will be ok for a couple of years but leave the original upside down felt on and put a cheap shed roof felt over the top just to make sure. Make sure the flashing can t move at all.

Put fasteners at least every 8 inches. Roll out about 10 feet of felt and fasten with staples or roofing nails with plastic washer heads. Some roofing felts are actually glued down. Installing the roofing felt does take care but can go very quickly.

If this felt is more than a temporary waterproofing measure apply roofing mastic using a caulking gun. These applications are ideal for flat roofs or protective surfaces under roof level decks.