The solution in this instance is most likely replacement.
Cracked roof tile repair.
Repairing broken roofing tile instead of replacing means that the pieces can be glued together.
To replace the underlayment 1 you will need to remove and replace the tiles on your whole roof.
Wait about 10 minutes for the glue to dry.
If your roof area is approximately 1500 sq ft it will cost approximately 5400 to 7660 including labor to do this repair.
This means that the visible crack is siliconed up but the all important drainage course that is hidden under the lap is left broken and un sealed.
Also pry or force out any nails.
This means that while the roof tile does not leak as bad it still leaks.
It is lazy and it will leave another part of the roof exposed.
3 spread a small amount of roofing cement along the underside of the replacement and slide it into place.
1 carefully pry up the tile or tiles just above the cracked or broken one.
Apply it directly on top of the cracked area and push it down into the crack with your finger or a putty knife thus capping the void and the leak.
Vulnerable areas include roof valleys and areas of penetration.
In areas where the crack has led to a full horizontal or vertical break it is unwise to use adhesive to fix the crack.
2 break the faulty tile and remove the pieces.
When a tile on your roof breaks all you will have to do is remove the broken piece or pieces and slot in a brand new tile.
Squeeze out a dollop of wood glue onto the crack on your tile.
This video will walk through the process of repairing broken.
Getting a concrete roof tile out of position can be quite difficult.
Underlayment 1 costs approximately 61 per square excluding labor.
However as a short term solution where you do not have access to a fresh tile you can repair the cracked tile with roofing cement or silicone caulking.
A good idea is to have a supply of eight to 10 tiles you can keep in the garage.
Cracked roof tiles ideally need to be replaced on a like for like basis to maintain the weatherproofing of the roof and its appearance.
Use your finger or a chopstick to smear the wood glue lengthwise across any parts of the crack larger than 1 millimetre 0 039 in across.