paul1974

So, I opted for a full reinforced concrete slab in the end... the ground here moves so much and wanted to be safe. I was thinking to use engineering bricks in between concrete and SIP floor to provide a 65mm ventilation gap. - Do i still need to run a DPM strip on top of the bricks or are these meant to stop moisture? - Do i go for complete rows of bricks (laid at opposite length to the floor panels) or do i miss every other to provide added ventilation? - would 600mm centres rows of bricks be ok? - The concrete was finished pretty flat and smooth (used a large bull float) however i'm sure there will be a few mm imperfection along the surface. Should i maybe use sand or just packers where the level is too off? Thanks again

i wasn't keen on pier and beam foundation (or ground screws even) mainly because of pests/rodents potentially nesting under there. but i may reconsider. With this strip approach, not sure if i understand exactly, but is there concrete strips dug along the ground and then blocks on top of these strips? I tried to represent below my understanding, but please correct me:

Thank you. It comes as a kit. See here: SIPs Panels | SuperSIPs UK Manufacturer of Structural Insulated Panels | Design I I think if I was building a wooden frame I would have gone with normal insulation on a floating floor. I'm opting for this kit for convenience and time really... Cheers

Hi, building a garden studio with SIP panels. Floor and walls 100mm, roof 150mm. Size is 4x3m The base is a full concrete slab same size 4x3m. 150mm subbase + 100mm concrete (not insulated) Can I: a) lay the SIP floor on the concrete with a DPM membrane in between? Membrane will be wrapped up the wall 1 foot height. or b) do i have to ventilate between the concrete base and the SIP floor? Also using a membrane to wrap the base. I'm trying to minimize height, so i'd rather go with option a) if possible, but not sure re the ventilation. If i have to go with option b), what size gap? and can i use lines of bricks rather than wooden rafters to avoid wood degrading over time? Not an expert, so thanks for any help. Paul