nailscrew Posted November 16, 2021 Share Posted November 16, 2021 We are in the process for installing underfloor PIR insulation boards and I have a question regarding electric cables. On a photo cable rests on a beam and insulation board will be installed on top, squishing it. Is it acceptable? Shouldn't cable be moved under the beam? Do I need to ask builders to make a cut in a PIR board to leave air gap around cable at least? Link to comment Share on other sites More sharing options...
PeterW Posted November 16, 2021 Share Posted November 16, 2021 Will be fine if it is PIR (not EPS) Link to comment Share on other sites More sharing options...
nailscrew Posted November 16, 2021 Author Share Posted November 16, 2021 45 minutes ago, PeterW said: Will be fine if it is PIR (not EPS) Thanks. What if it was EPS? Link to comment Share on other sites More sharing options...
PeterW Posted November 16, 2021 Share Posted November 16, 2021 EPS and wires shouldn’t be in contact as the styrene in the EPS and the plasticiser in the cable outer becomes degraded. Link to comment Share on other sites More sharing options...
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