Dreadnaught Posted December 22, 2019 Share Posted December 22, 2019 Can I run waste pipes (such as from a washbasin or sink) through the wooden I-beams of my exterior wall, which will later be filled with blown-cellulose insulation (Warmcel)? (I know its OK for water pipes. And only use a continuous pipe runs, so there are no inaccessible joints.) Link to comment Share on other sites More sharing options...
PeterW Posted December 22, 2019 Share Posted December 22, 2019 Yep it’s fine 1 Link to comment Share on other sites More sharing options...
Simplysimon Posted December 22, 2019 Share Posted December 22, 2019 1 hour ago, Dreadnaught said: (I know its OK for water pipes. And only use a continuous pipe runs, so there are no inaccessible joints.) have to say, if i were doing this, i'd run them sheathed in a larger pipe to avoid condensation risk, soggy paper and all... 1 Link to comment Share on other sites More sharing options...
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