Yesterday’s images were just a diversion from the task of “measuring the house”, of course. Here are some outside thermal images, taken mid-February:
But the really interesting bit comes from sucking air out of the house using the blower door on a cold day, to see where cold air comes leaking back in:
You have to take the measurement scale into account, but some of the (over 200!) images made were absolutely shocking. There are some major air leaks in and around the house!
As final test, smoke was used: you turn the blowers around to create a slight over-pressure, turn on a big smoke generator (of the kind used in shows on-stage), get out of the house, and watch the smoke appear – it was literally everywhere, even in the neighbour’s houses!
This sort of testing needs to be pre-announced to the local fire department…