There are four weak corners on an interlocking tile and any one could be affected.
Roof tile broken corner.
If the cover lock corner is broken less than three inches and the broken piece is available it may be possible to repair the corner by proper adhesive application.
Expert advice from bob vila the most trusted.
As soon as a corner breaks it reduces the effective headlap at that point allowing wind driven rain and water seeping up the surface of the tile by capillarity to breach the headlap.
Using an adhesive specifically formulated for concrete or clay roof tile follow the manufacturers instructions to form a complete bond along the fracture.
It is generally advisable to replace tiles which have broken under locks.
The most typical causes of roof cracks are foot traffic protruding nails from underneath and severe storms.
Broken roof tiles are easy enough to find and replace.
In areas where the crack has led to a full horizontal or vertical break it is unwise to use adhesive to fix the crack.
The high kinetic energy of the hail impact on the lower corner of the roof tile can cause a point load break or crack at the over lock corners.
Sometimes the hard part is getting up there so that you are in a position to make the repair.
Vulnerable areas include roof valleys and areas of penetration.
Many roofing tiles are designed with a longitudinal interlock to allow proper water shedding in order to match the current surface elevation.
Roof tile cracks can happen due to several causes.
If the cover lock corner is broken less than 3 inches and the broken piece is available it may be possible to repair the corner by proper adhesive application.