"The top 3 things I regret after building a house +α"

youtube 3rd time
"The top 3 things I regret after building a house +α"

Has been released.
https://www.youtube.com/watch?v=w2WHwa032b8

For those who regularly attend lectures, this is the first thing I talk about. I start by explaining the importance of window insulation, and the importance of solar radiation gain and solar radiation shading. This is the first thing you should do, and it's the most basic thing.

If you have already heard about it, this is a good place to review, and if you don't know it, this is the place to start. I would like you to instruct your employees to watch it as well.