How To Lay Felt On Concrete Roof

In this tutorial videojug takes you through the necessary tools and easy instructions to installing a felt roll for the roof and other tips to keep in mind.

How to lay felt on concrete roof.

As you work the paper can be tacked down in the center so it won t blow away. Start by measuring the length and width of one side of the roof in. Laying the first nailed layer of underlay felt. How to lay felt on a flat roof.

The first section of the tiles is cut to size and attached to the roof starting at a lower edge and working up. This layer is not bonded to the decking so that the decking can move without damaging the felt roof. If there are roof battens nail the tiles to them. Laying the felt the roofing felt should be applied in layers that overlap.

Most pros use this line to begin shingling working left and right toward the rakes. The felt keeps the roof deck dry before shingles go on protects against wind driven rain as shingles fail and increases fire resistance. You will be looking for any decking that has rotted or bowed. Cutting your felt pieces.

Otherwise attach the tiles to the roof felt. Spread the mesh pieces side by side overlapping them by about 3 8 in 0 95 cm. Calculate the area of your roof by combining the area of each surface. If it were me i would go with a top quality sbs modified and polyester reinforced 2 layer felt system.

Add about 2 inches 5 cm to each of your measurements before calculating the area. Check to ensure the roof is in good enough condition to walk over. Step 2 placing the felt. Go to a roofing merchant rather than b q for materials.

If the felt is in a brittle aged condition then i would suggest you strip back to the concrete first. Laying the second bonded layer of underlay felt. Will last you 35yrs. Step 1 prep work.

Lay fiberglass mesh over the roof and cut it to length. Then use a utility knife or scissors to trim away the excess so the mesh fits tightly against the roof. This will give you extra felt to hang over. Use roof adhesive to fix down the tiles as each one is slid into place and nail the tiles down.

Start at the bottom of the roofline and work up so any water that gets through the roofing material will shed down the tar paper and will not go under it.