Replacing Roofing Felt From Inside Loft

I have a normal uk type cold roof with interlocking tiles over the roofing felt.

Replacing roofing felt from inside loft. To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists. Vent tiles lead the air in from outside through the tile barrier through the felt line and into the loft space. I rather not have to get all the. Active 9 years 8 months ago.

This will cost around 460 510 made up of. Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced. The house was build around the 1960 and i think the roof has never been look after as a result i can see the bottom of the roof tiles. As a temporary fix i have been thinking about purchasing some breathable roof membrane and slip this over the existing felt and then get some membrane tape and tape this in until i have the funds to get.

In the course of the water leaking through my roof onto the ceiling of a room i have been told that the roof felt underneath the concrete roof tiles is obviously the original felt ie 1970s and has gone brittle and awful with age and will need replacing entirely. There are a few small rips in the felt about 5cm or 10cm long. The air needs to come from outside the roof space. Viewed 6k times 1.