wozza Posted November 3, 2019 Share Posted November 3, 2019 Hi All, We should be pouring the 100mm concrete sub floor this week, how long should we wait before laying the 120mm PIR boards? I have read / been told anything from 3 days to 2 weeks. Thanks, Wozza. Link to comment Share on other sites More sharing options...
PeterW Posted November 3, 2019 Share Posted November 3, 2019 What’s the rush ..? Do you mean the oversite or are you going to put PIR then another layer of concrete ..? 1 Link to comment Share on other sites More sharing options...
Onoff Posted November 3, 2019 Share Posted November 3, 2019 1mm per day? Link to comment Share on other sites More sharing options...
wozza Posted November 3, 2019 Author Share Posted November 3, 2019 31 minutes ago, PeterW said: What’s the rush ..? Do you mean the oversite or are you going to put PIR then another layer of concrete ..? Should have explained better. Floor make up is as follows 50/55mm Cemfloor liquid screed (with UFH) DPM 120mm PIR insulation board 100mm Concrete subfloor (almost at this stage) DPM Sand binding Type 1 / hardcore We want to get it done as soon as possible - there is no immediate rush and the area is weather tight (apart from, a few draughts from around the boards where the windows will be fitted). Thanks, Wozza. Link to comment Share on other sites More sharing options...
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