Garden shed

Field east

Would appreciate advice on following points.

Floor will be 6 x 4 mt. Have already poured foundation and sub floor and am up to DPC level but have not laid it yet.
- want to lay 2 inch insulation sheets on sub floor. Is it advisable to cover the WHOLE sub floor with it or should I leave , say , a two inch space between it and the wall all around so that the finished floor will be in direct contact with the sub floor apart from the DPM which I will lay under the sheets of insulation?

- thickness of finished floor?

-should the DPM fully overlap the DPC on the wall?

- when laying the DPM and the DPC on the wall should I put on a thin layer of block work concrete on the blocks first?

- should I put a layer of DPM over the floor insulation as well.

- when pouring the floor , should I be worried about walking on the insulation sheets - silver side down - when working on it to develop a smooth finish with a steel plastering trowel. I will be wearing rubber welling tons

Field east

All DIY IRS re garden sheds must still be on holidays as I've got not even one response to my queries to date. Any possibility of someone out there even responding to the first query re butting the insulation sheets against the wall and tach other or leaving , say , 2 inches between all. All replies would be greatly appreciated

gutteruu

I wouldn't bother with any gap around edges. You can walk on insulation when working it no problem. I would put some DPM over insulation. Tickness can be 75mm+ concrete. You put some mortar under the first course on top of DPC if thats what your asking.