Fill in large cracks with mortar or roofing cement then apply a good concrete primer.
How to fix a concrete roof from leaking.
Like any roofing system they have their own advantages and disadvantages.
At this point our objective is to educate building owners on how to stop water leakage from concrete roof.
Commercial roofs made from concrete are prone to damages leading to moisture retention and eventually leakage.
For this you will need to first clean the entire roof surface with a pressure washer.
If several tiles must be replaced begin at one end and work your way across.
Seam tape large cracks with epdmcoatings adhesive seam tape.
Ascend the ladder with your tools and carefully make your way to the leaking section of the concrete tile roof.
The whole concrete roof is cleaned and power washed then flood coated with epdmcoatings elastomeric pure acrylic primer.
The screeding can then be replaced.
For thin or hairline cracks low viscosity epoxy resins will more often achieve better results.
There is no sign of dampness at the roof slab as the leaking water is trapped in the roof slab section 150 mm the roof slab is leaking as through absorption and gravity the signs are observed in below floor ceiling please attend it.
It does not mean concrete roofs are not any good.
Sealing leaks and waterproofing when repairing a leaking roof the fundamental issue is that it is the reinforced concrete that is leaking and the best approach is to remove the screed and expose the reinforced concrete so that leaks can be found and properly sealed.
Identify the first tile to be removed and carefully lift the tile above it enough to allow you to slide the crowbar beneath it.
New repairs using epoxy and polyurethane foam when performed properly offer years of relief from leaks.
Advances in crack repair for home foundations extend to needed repairs in concrete roofs.