How To Lay Felt On Concrete Roof

How to lay felt on a flat roof.

How to lay felt on concrete roof.

Otherwise attach the tiles to the roof felt. 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. Calculate the area of your roof by combining the area of each surface. 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.

If the felt is in a brittle aged condition then i would suggest you strip back to the concrete first. If it were me i would go with a top quality sbs modified and polyester reinforced 2 layer felt system. Step 2 placing the felt. If there are roof battens nail the tiles to them.

Use roof adhesive to fix down the tiles as each one is slid into place and nail the tiles down. Most pros use this line to begin shingling working left and right toward the rakes. The first section of the tiles is cut to size and attached to the roof starting at a lower edge and working up. Start by measuring the length and width of one side of the roof in.

The felt keeps the roof deck dry before shingles go on protects against wind driven rain as shingles fail and increases fire resistance. Installing any gutter drips. Spread the mesh pieces side by side overlapping them by about 3 8 in 0 95 cm. 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. Laying the second bonded layer of underlay felt. You will be looking for any decking that has rotted or bowed. You can install the mesh over old roofing material or insulation.

Will last you 35yrs. Laying the felt the roofing felt should be applied in layers that overlap. Cutting your felt pieces. This layer is not bonded to the decking so that the decking can move without damaging the felt roof.

Add about 2 inches 5 cm to each of your measurements before calculating the area. Lay fiberglass mesh over the roof and cut it to length. Go to a roofing merchant rather than b q for materials. Next find the center of the roof at the top and the eave then snap a vertical chalk line.

Step 1 prep work.