How to Re-Felt a Shed Roof

Rip off all the old felt and prise out any nails you see. If they are rusty and the heads break off, make sure that you hammer them flat so as not to damage the new felt.

Measure the length of the roof, parallel to the ridge and add on 50mm so that the felt will overlap the facia boards by 25mm. Cut the felt into strips.

Place the first strip of felt on the side of the roof so that the bottom edge is overlapping the eaves by 25mm. Similarly, each short end of the felt should overlap the facia boards by the same amount. Smooth the wooden batten over the felt to iron out any wrinkles. Start at the centre and move towards the ends

Using the chalk line as a guide, place the next strip of felt on top of the adhesive and press down firmly. As before, run the wooden batten over the felt to smooth out any wrinkles. At six inch intervals, nail the top edge of the felt and two inch for the side edges.

Cut one more strip of felt measuring the width of the bare ridge plus six inches for overlapping. Lay the felt strip over the ridge, placing it centrally and make a chalk line using the edges as a guide. Remove the strip and apply adhesive to the bare ridge. Ensure that it does not come below the chalk line. Leave until it becomes tacky. Place the felt over the ridge, matching the chalk lines, and smooth over with the wooden batten. Press down firmly. Nail the edges onto the facia board at two inch intervals and neatly fold over the excess felt at the top corners and nail through.