Al Parker

I thought it was suggested that timber frames should start 150mm above ground level and to use a course engineering block to build it up if it didn’t. the document I have states “hardcore, sand binding, dpm, 100mm insulation, dpm, mesh, concrete”

Hi all, I recently purchased a house that has a fairly newly built 4.5m x 3m insulated concrete slab at the bottom of the garden. I’m now looking to build a garden office on this, i’ll match the office to the size and I was given the specs via an invoice as part of the purchase. The slab finishes 100mm above ground level on the right hand side and then due to a slope finishes 250mm above on the left. Is it a terrible idea to build the timber frame, separated by DPC, straight onto the slab? The vast majority will be above the suggested 150mm