I can certainly understand the requirements for having a contractor to verify the correct installation of energy savings improvements in a home.
I had some sun screens installed on three sides of the house as that was all that was cost effective for my location. No need to put the screens on the north side as the sun only made contact with those windows about 4-6 weeks per year. Had to do the whole house or no tax write off. The cost savings of not doing the sun screens was better than the write off so it was an easy decision to thumb my nose at the smaller savings of the government write off.
As I started to seal up the top plate and install the interior wall insulation, I began to notice that when opening a door from the outside, I could feel a pressure wave against the door like never before. As I continued to seal up the house, the pressure wave effect on opening the door was slightly greater all the time. If I had a window open, the pressure wave on opening the door was not there.
Another thing I noted was sometimes I could seal up the top plate and insulate a wall section or two, the water suddenly became warmer faster and even hotter at a faucet or shower than ever before. I had not expected that bit of a bonus, but sure does feel nice now that the weather has turned colder. Made me think that perhaps I could have tried to focus on wall sections that might contain hot water pipes to get the warmer water bonus first.
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