A flat roof requires a normal slab either solid or hollow pot as designed by a structural engineer, integrated with waterproofing materials and finished to slope towards rainwater downpipes.

The suspect building technique called flat slab — in which floors are supported only by concrete columns — caused 61 percent of the building collapses in last month’s magnitude 7.1 quake ...

The flat roof construction is officially complete and we’re ready to move on to the next stage: installing the rubber roof! Watch as we walk through the preparation process and share some tips ...