Ten years ago, we started the #renovation of our home. Builders had half the rooms at a time - it was properly cold without central heating, hot water, insulation; and with maximum draughts. And then the outcome was both wonderful and under-budget.

Thanks again to https://ransonbuildersltd.com/ #builders #London #E18

Best wishes to anyone doing similar stuff now. Wear lots of fleece!

There must be a simple answer, but what's the technique they probably used to measure & mark on a curved surface like this? Maybe fill with water, mark with tape, and wait until dry?

https://www.iwm.org.uk/collections/item/object/205125781 #energy