Slip a pry bar under the shingles above the affected area to pull out the nails holding the damaged shingles.
Fixing hole in roof felt.
Make sure the caulk is rated for the temperatures and apply it liberally so you don t create a water pocket.
From inside cut across the lowest part of the damage from rafter to rafter cut a piece of slaters felt 50 100mm wider than the rafter rafter size and taper this both sides slide the tapered edge into the cut and pin the sides to the rafters using lengths of batten.
Many roofs function quite well without any roofing felt so small tears and damage to roofing felt are not in themselves reasons to spend money on repairing it.
You might find holes left over from a satellite dish or antenna mounting brackets or just about anything.
Instead of replacing the felt roof we decided to use a product call.
The cost of replacing roof felt under tiles will be included in the overall tiled roof roof repair costs.
Use hammer claws to help remove all nails from the shingles over the hole.
And exposed misplaced roofing repair nails should be pulled and the holes patched.
Screw the batten in place nailing may dislodge tiles.
Take up the shingles over the hole.
Alternately get more roofing felt and a tube of roofing caulk and glue felt patches over the rips with the caulk.
Where wind driven rain is working under the roof and causing leaks then the felt will need to be replaced.