Lin

Hi On our conversion the building already has a concrete floor. We do not want to remove the floor so have to build up over. Head height will be an issue. We intend to use 75mm PIR insulation and then a sand/cement slab of 75mm. The height of the finished floor to the boxing in over the steel in the ceiling will then be 2.2m and the rest of the ceiling height just over 2.4m Someone recommended the pumped screeds ofr UFH; said that they are very strong and flat and quick to install by specialist. They can also be comfortably done at only 50mm thick. Can anybody comment on these screeds for being good and strong etc and better than sand/cement? Any other comments welcome thanks.

Hello everyone ! A post just to introduce myself Doing a conversion using builders. I'm new to a lot of this energy saving building stuff and overwhelmed to be honest. Impressed by the knowledge and advice given on the forum. Main problem as i can see is that hub and i do not have time to do a lot of the detailing required to get things as "right" as a lot of you guys would do on your own places. And we only have a year to complete the build . Still dithering about what energy source to use gas (mains close by) or ASHP. gas would be an easy quick cheap decision but ASHP seems to be another nightmare of beaurocracy for RHI, a more 'unproven' technology, lower water temps and therefore slower heat up time for UFH etc, yet we feel the future of green energy is electricity. My head hurts. I dare say I will post for advice on this and other stuff soon. Be gentle and speak slowly !