Home inspection find of the week: A little foam sealant can go a long way if it's not installed by a 5-year-old.

I bring up these posts about sealing the house as winter is coming. It seems like around the Austin area there’s maybe three guys who do foam sealant, this dude who just gets it everywhere except in the right places, the guy who shoots it into the holes around the box leaving the electricians to have to dig it out later, and the one guy who actually does it right.

Here in Austin we are climate zone 2A, which is hot, humid. What happens in a humid environment is humidity can get pulled into the wall and gets trapped, later condensing when it hits the dew point, usually in the cold evenings against the exterior wall side or the daytime against the cooler interior wall side. Having the water cycle going on inside your wall is not great. Not to mention the energy inefficiency which you can clearly see in the thermal images!