Torch on Waterproofing
Torch-on membrane is a bitumen-based waterproofing product which is heat-fused to underlying substrates. It is sold in a variety of thicknesses with single or dual re-inforcement with polyester or fibre glass.
Surfaces must be sound, clean and free from any contaminants and primed with one coat of Bitumen Primer prior to the application of the torch-on membrane. Once cooled, the membrane should be protected with 2 coats of Bitumen Aluminium Paint for UV protection or covered with a screed and tiling.
Concrete roofs are not watertight on their own. The conventional waterproofing system with membrane is not the answer to your leaking concrete roof. The only way to do proper waterproofing on your concrete roof is to do the Torch-on Waterproofing.