Waterproofing

[Smudger1966]

All,

Can someone advise what product I can use please.

I have a building with a beam and block roof in my garden and I want this roof to be a patio so will be laying slabs on this. What waterproof membrane can I lay on the bean and block to water proof it again water ingress before laying the slabs. Any help appreciated.

Thanks....

 

[^woody^]

Treat it as a normal flat foor and use the covering of your choice. You can't just lay slabs on it though as you need the proprietary spacers to support the slabs.

For a dead cheap job, really thick polythene or a butyl pond liner.