A cracked roof tile lets water in - the question is how many you have, how old the roof is and whether replacement or repair makes more sense.
Why tiles crack in Bloemfontein
Bloemfontein's temperature range between seasons is wide. Tiles expand in summer heat and contract in winter cold. This thermal cycling stresses tiles over time. Hail is the other main cause - impact damage that may not be visible from the ground. Hail-damaged tiles often have invisible hairline cracks that only let water through under sustained rain.
When repair makes sense
If fewer than 5–10% of tiles are cracked and the rest of the roof is in good structural condition, individual tile replacement is cost-effective. Matching replacement tiles to an existing roof is usually possible for standard concrete tiles. Clay tiles are harder to match if the original batch is old.
When replacement makes more sense
If the tiles are old and brittle throughout, hail-damaged across the whole surface, or if the battens and structure underneath are deteriorating, individual tile replacement just postpones a larger cost. A professional roof inspection gives you an honest picture. If the roof needs major patching every other year, the cumulative cost of patching often exceeds a full replacement over 5 years.
Temporary solutions for active leaks
A roof sealant applied to visible cracks can reduce water ingress temporarily. This is a stopgap, not a repair. A tile sealed with roof coat will still eventually let water in through other failure points, and the coating does nothing for the structural integrity of the tile. Use it to stay dry while you arrange a proper repair.
Frequently Asked Questions
Can I replace a cracked tile myself?
Technically yes, but walking on a tiled roof risks cracking more tiles. A professional roofer knows where to step and how to lift adjacent tiles without disturbing the lap. The tile itself is inexpensive; the expertise is in the installation.
Will my insurance cover hail-cracked roof tiles?
Most building insurance policies cover hail as a named peril. Have a roof inspection done after a hailstorm and photograph any damage before repair.