How To Lay Felt On A Flat Shed Roof

This will give you extra felt to hang over.

How to lay felt on a flat shed roof.

Drip edges on the eaves any valley liners and all flashing should be installed before the tar paper is laid. The sequence of laying a felt roof is. Before laying roof felt all rotten decking must be replaced. Step 1 prep work.

Laying the second bonded layer of underlay felt. There must be an overlap to prevent leaking. The process of felting a shed roof. Check to ensure the roof is in good enough condition to walk over.

Chalk lines should be snapped 33 5 8 above the eave line. Step 2 placing the felt. For most sheds you ll need to cut 3 pieces of felt. This layer is not bonded to the decking so that the decking can move without damaging the felt roof.

After this lines should be snapped every 34 as you move up the roof. In terms of spacing leave about 6 inches between nails along both of the short sides and the side lying next to the edge of the roof. Either use a broom or if the roof is strong enough walk over the top of the roof felt to get rid of any air bubbles. Cover the roof edges with strips of felt before laying the final layer of roof felt.

Roll out the first layer of felt. 1 for each side of the roof as well as a third section that will overlap the 2 side panels by about 30cm on each side and run along the top ridge of the shed. Cutting your felt pieces. The first step in felting a shed roof either angled or flat is calculating the exact dimensions of your roof.

Clean and prepare the roof. You will be looking for any decking that has rotted or bowed. How to lay felt on a flat roof. You ll need enough felt to cover the entire area of the roof with a little extra on each edge around 5cm to allow for overlaps at the eaves and at the gable ends approximately 7 5cm.

Laying the first nailed layer of underlay felt. Installing any gutter drips. Roll the felt so that it overhangs the edge by 2 inches. Laying the top bonded layer of top sheet felt.

Start by measuring the length and width of one side of the roof in. Do not let the ends join together. Add about 2 inches 5 cm to each of your measurements before calculating the area. The second layer of felt is then placed over the top of the first.