Repair Roof Felt In Attic

I have a normal uk type cold roof with interlocking tiles over the roofing felt.
Repair roof felt in attic. If your ceiling has a plastic vapor barrier between the drywall and the attic insulation push the insulation aside and look for flow stains on the plastic often water runs to openings in the vapor barrier such as at ceiling light fixtures. There are a few small rips in the felt about 5cm or 10cm long. To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists. Any help or advice would be appreciated.
A small part of the roof felt is torn inside the attic there is a draft coming through from the wind blowing is there a quick and easy way to fix this. Walk carefully on the ceiling joists in the attic or use a sheet of plywood to walk on so you will not accidentally put a hole in the ceiling panel. Sometimes the water shows up at a ceiling spot distant from the leak. This will cost around 460 510 made up of.
Repairing a roof leak from the inside is a temporary fix only. I rather not have to get all the tiles removed to repair them. As the tiles are in a good state i don t have any leaks at present but i rather fix the problem before it becomes an issue. Phil demonstrates what can happen when roofing felt has gone rotten and what needs to be done to fix it.