Recent content by Jdot

Hi, got a bit of an issue levelling extension floor (concrete) with existing (suspended timber) floor. There was a bit of a slope from existing to new floor so used dunlop LX40 SLC on the extension floor but there is still about 3mm slope. My question is can i use acrylic primer on top of the...

My SE is a friend as well so ok on that part but agree with your comments about BCO. Apparently they came down when insulation/dpm was put down before slab pour and also to see air vents extended through the extension. Couldn't they see what was the depth left for slab to be poured on?!

Had a chat with structural engg who wasn't happy but still in negotiations to sort it out with added fibre in screed..will keep you posted

Builder is just fobbing off saying it will be ok. Build plan was done by structural engineer but i haven't discussed it with them yet. So is it going to be ok like this now with hardcore, 100mm insulation 60mm concrete slab and 100mm screed or i am looking at issues after a few years?

Thanks for the replies. 100mm insulation is already there under the slab. The problem is with the thickness of concrete slab which is about 50-60mm as opposed to recommended 100mm. So i assume it is not enough? And may crack in future?

Hi. I am having an extension done and had to be away quiet a bit for work reasons so not always there to see what was happening. Floor slab has been poured about 10 days ago and i noticed the thickness is only around 50-60mm (no mesh). Building plan specified 150mm hardcore, 25mm sand, 1200 dpm...