Q. My garage roof is leaking and I can’t seem to fix it. It is a concrete block-walled 2-car garage with a flat slightly pitched reinforced concrete slab roof that has some hairline cracks that ...

Dear Angie: I'm wondering why my concrete garage slab ended up blotched and discolored. The contractor poured two slabs on a day with a high temperature of 53 degrees and a low of 48. The finisher ...

Look for cracks - The most obvious symptom of a garage floor about to give way is a crack that keeps growing. If your slab is split down the middle, call a contractor to come check it out. 2.