To replace a small section of roofing felt involves stripping the tiles from the roof and replacing felt between two joists.
How to repair felt under roof tiles.
Replace refit loose or broken tiles and use flashing tape to repair the roof felt underfelt.
Work along the roof removing any excess slack in the felt but don t pull it too tight a slight sag between rafters is ideal to allow water to run off.
It would be far cheaper to fix the faulty tiles than to re felt the roof.
This will cost around 460 510 made up of.
If your roof is leaking it is not because of faulty under felt.
Of course re felting the roof correctly will involve the removal and replacement of the tiles anyway.
Make sure the tiles are facing the correct way for the prevailing wind.
When the first length is secured lay the next layer of sarking felt on top so that it overlaps by approximately 100mm.
Place the next layer of felt to your tile roof.
The roof felt is merely a secondary emergency waterproof membrane.
Put these nails at the bottom of the felt and leave a small portion available.
Bend the shingle over the ridge and nail down firmly.
Take the next shingle and overlap it on top of the first on.
Put a coat of flashing strip primer onto the crack and the area around it.
If this leaks the roof tiles needs repairing.
It is because you have faulty tiles somewhere on the roof.
Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.
Start by giving the area around the crack a good clean with a wire brush wiping away the dust and debris.
Cut off a piece of flashing strip to fit the length of the tile you need to repair.
Observe equal distance of each nails approximately 20 inches so they are properly attached to the roof.