bifold

Advice please! I have a 5m x 4m extension underway. Got my slab down, with the insulation boards under whacked down type 1 below the slab. My plans say to put 75mm screed down, BUT no allowance has been made for dry underfloor heating - and the bifold company are due to visit for measurements...

Hi everyone. A couple of questions that I hope you can answer please. 5 years ago ( before I owned it) my house was rendered with a bobbly cream substance, which when peeled off seems to be almost rubber on its back - it was sprayed on by a company aparantly. Any idea what this might be please...