Jimbo37 Posted May 3, 2023 Posted May 3, 2023 (edited) Hi Can anyione advise on the need, or not, of a membrane on the outer face of the inner leaf in a bead filled new cavity? Apparently it is to protect the inner leaf from damp, as moisture could track across the bead - new to me TIA, JAmes Edited May 3, 2023 by Jimbo37
SteamyTea Posted May 3, 2023 Posted May 3, 2023 Just a VCL. One has to be fitted somewhere, not that is the easiest place. Wall ties will (expletive deleted) it up. 1
Jimbo37 Posted May 3, 2023 Author Posted May 3, 2023 Thanks @SteamyTea This is 2 * masonry leaves, right? I dont suppose you know of a product?
SteamyTea Posted May 3, 2023 Posted May 3, 2023 1 hour ago, Jimbo37 said: I dont suppose you know of a product? I don't, others might. 1
dpmiller Posted May 4, 2023 Posted May 4, 2023 surely the whole point of beads is that moisture *won't* cross them... 1
Mr Punter Posted May 4, 2023 Posted May 4, 2023 No membrane required, but you need to restrict the amount of moisture getting into the outer leaf, so either render for blockwork or a coat of Stormdry or similar if it is brickwork. 1 1
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