that why..i dont encourage using slab cement..even though you hv apply water proof how many layer, still leak after year....you must learn/know the behaviour of cement......there is a technique to avoid leaking though.

lucky you have already put the roof tile.

when i saw people doing concrete slab...for me i know they make major mistake. This is because many contractor do not know the right way of making concrete slab...for them the important is finish the job.

Hi Xerox1234,

PM me if you want the right technique.


The price of normal roof tile eg Monier about RM2 per piece. For 10x20 ft you need about 300 pieces of tiles.