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Hi, I've gotten to removing the last part of the existing floor, the section from front door to under the stairs ( the bit thats under the first couple of steps, boxed in with lath and plaster ). This is difficult to access, though, I have cut out a section of the closed understair in the living...

Thanks for that. Looks like there isn't a minimum figure. Think the 25mm cover is for when it's embedded in screed. I'll have to check with Gas safe and report back with the answer.

Hello, Hoping a Gas fitter may be able to advise on ducting pipes in a concrete slab. I'm going to be installing a 100mm slab in near future and would like to provide the gas supplies to the fire and boiler within the slab. I wanted to have them in a duct, metal or concrete with a removeable...

''sounds like you have to move a lot of material "out" by hand if theres no access for a barrow'' I've had the week from hell, already filled 2 x 10 ton skips, that's by filling 2 x rubble buckets and loading to a barrow outside front door. There is still half the floor area to go ! My hands...

So, I picked up Tamper from toolstation and used round the wall perimeters, whacker in room centers, all well and feels solid. I am now getting ready to build up the layers, My proposed make up is 340mm ( 100mm hardcore, 25mm sand,100mm insulation, 100mm C25 and allow 15mm for laminate or tille...

In terms of compacting the sub soil and MOT, I'm concerned about using a whacker plate in and around the house walls, talking to neighbours, I think these properties have had issues in the past. The sub soil looks really loose, you can dig it with your hands easily. I've never used a whacker...

This is the first house I've had with a concrete floor, it's proving to be a real headache, so much easier with a suspended floor

A option someone mentioned to me, but sounded a bit of a bodge, was to put the slab over the dpm, a layer of sand on top and bed the insulation on the sand,then caber deck the floor?

I was hoping that you could simply pour a thin layer of levelling compound on the floor to just cover the surface stones, but I wasn't sure it would actually stick to the new floor and not crumble when walked on. Mind you, it would need an awful lot to cover a 30m2 area. I can get away with...

Hello, I’ve just started digging out a concrete floor to replace a worn out slab and was hoping to get a few pointers regarding the install. 30m2 floor area and I’ve planned; 1, Compact the sub-soil 2. 100mm MOT compacted 3. Sand blind and lightly compact 4. 1200 DPM 5. 100mm...