Is class O armaflex waterproof

[2807]

That's it really.

I have a run of 15mm pipework that it outside above ground, currently it is in 13mm wall insulation then inside a length of 50mm conduit.

I have some 45mm bore 19mm wall class O armaflex that I was thinking of substituting in place of the conduit, although - obviously - if it absorbs moisture then the additional insulation will no doubt be outweighed & the cost of 90mm drainpipe to surround it will make any anergy savings marginal.

2807

[guydewdney]

yes.