Postby darren p » Sat Aug 11, 2007 2:42 pm

i am having a conservatory built, the builder has used thermalite blocks below the DPC line (on top of Trenchblock). I have been told that you should not use thermalite below ground level
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Postby welsh brickie » Sat Apr 12, 2008 9:47 am

in a rule no you should not use thermalite 100mm block below dpc .
But trenchblocks are thermalite anyway so I wouldnt worry.
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