From the blog "Our Journey North of the Border"

Yes, now that the first fix has been completed, the plaster boarding has started with the upstairs being done first. The builders will move downstairs an a weeks time or so. Whilst they have been boarding out, I have been installing the insulation for the partition walls, loft space and ceilings downstairs. The insulation being used in the loft space is 140mm - two layers laid at right angles to each other if that makes sense. The insulation used for the partitions is 100mm and the plasterboard