In many Singaporean homes, a roofing-contractor-singapore must fix spalling concrete caused by water seepage. This occurs when moisture reaches the steel reinforcement bars, causing them to rust and expand. The contractor removes the loose concrete, treats the rust with a converter, and applies a high-strength repair mortar. Finally, they waterproof the external roof slab to stop the ... https://kkroofspecialist.com.sg/roofing-contractor-singapore/