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.

How to lay felt on a flat roof. Installing any gutter drips. Step 1 prep work. Add about 2 inches 5 cm to each of your measurements before calculating the area.

You can install the mesh over old roofing material or insulation. This layer is not bonded to the decking so that the decking can move without damaging the felt roof. Go to a roofing merchant rather than b q for materials. You will be looking for any decking that has rotted or bowed.

Calculate the area of your roof by combining the area of each surface. Laying the second bonded layer of underlay felt. Lay fiberglass mesh over the roof and cut it to length. The first section of the tiles is cut to size and attached to the roof starting at a lower edge and working up.

If it were me i would go with a top quality sbs modified and polyester reinforced 2 layer felt system. Cutting your felt pieces. 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. Step 2 placing the felt.

Most pros use this line to begin shingling working left and right toward the rakes. As you work the paper can be tacked down in the center so it won t blow away. Laying the first nailed layer of underlay felt. Otherwise attach the tiles to the roof felt.

Use roof adhesive to fix down the tiles as each one is slid into place and nail the tiles down. If the felt is in a brittle aged condition then i would suggest you strip back to the concrete first. Next find the center of the roof at the top and the eave then snap a vertical chalk line. Spread the mesh pieces side by side overlapping them by about 3 8 in 0 95 cm.

Check to ensure the roof is in good enough condition to walk over. Will last you 35yrs. Then use a utility knife or scissors to trim away the excess so the mesh fits tightly against the roof. Laying the felt the roofing felt should be applied in layers that overlap.

If there are roof battens nail the tiles to them.