Energy efficiency software really shows the significance of windows. Past a certain point there isn't any value in adding more insulation to a wall unless you upgrade the windows too - and it's a pretty low point. A generic window like we grew up with will just suck the heat out of a house in winter, or into it in summer.
Neat tour! Would have been interesting to hear more info on the IGUs. Do you know where they are sourced? Exciting to see European style windows getting some exposure through your channel.
I got a quote from these guys once on a new build. They ended up being twice the price of the ones I ended up going with. 20k compared to 40k , they are good windows but they were out of my budget
