Start by applying a thick bead of roofing sealant under the crack.
How to repair a small hole in a shingle roof.
Slip the top of the paper in under the flaps of the shingles above the repair.
Then spread the sealant with a putty knife.
More than an inch i d nail on a flat metal sheeting.
Smaller nail holes will be permanently fixed by this method standard roofing nails would be either 3 8 inch or 1 2 inch making a hole 3 8.
Begin by removing the shingles down to the wood sheathing and slip a strip of adhesive ice and water barrier available where roofing repair products are sold under the soffit main roof joint.
Slip a hacksaw blade under the shingle above and cut through the nails that held the old shingle in place.
Loosen the adhesive underneath the tabs of the damaged shingle then pull them free and discard.
Loosen and remove the damaged shingles.
If a shingle is simply cracked or torn you don t have to replace it just repair it.
The first step in the repair of any metal roofing material will involve cleaning the surface.
If the hole is less than an inch i would caulk the hole.
Fill small nail holes with silicone caulk or roof cement.
If the shingles are severely damaged don t try to salvage them.
A hole in a metal roof system can be caused by any number of sources the hole may be from deterioration and rust or it may be from something falling onto the roof surface such as a large branch.
Clean the repair area.
Lay the upper sheet of tar paper 2 inches over the lower if two sheets are needed to cover the section.
Remove shingles and cut tar paper to visually inspect if hole penetrated roof sheeting.
Nail tar paper on with roofing nails over every 18 inches of the perimeter and along any overlapping sheets.
Depending on how the roofs join you may have to cut a slot to work it in far enough.
Just remove them and replace them with new shingles of a similar style to the rest of the shingles on the roof.