If you just want to patch a hole in otherwise good felt take a look at our patching roof felt guide or our guide to repairing roof felt for some general flat roof repair tips.
How to patch roofing felt.
Use a 4 inch 10 cm paintbrush or a roller to apply the paint or primer.
To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists.
Apply waterproof paint or primer to promote felt attachment.
Measure the hole you have just cut and cut a piece of spare felt so that it is about 75mm larger than the hole all the way around.
Drag it gently from one end of the roof to the other east to west or west to east.
This will cost around 460 510 made up of.
Place the patch over the hole and draw around the edge with chalk to mark where you will need to apply cold felt adhesive.
The first thing you need to do is remove the old worn felt from the roof.
Instead of replacing the felt roof we decided to use a product call.
Generally the felt is tacked all the way along each edge.
We had a problem with our shed workshop flat felt roof leaking and needed a quick repair.