> At the root of the problem are cowboy traders who apply the foam without a full survey or appropriate expertise – but because of lenders’ caution, this is affecting other homeowners who had similar work.
A good example of negative externality.
(If you are a good libertarian, you believe they don't exist, or everything is fine).
You hire someone to do spray foaming properly, have no problems with it, but suffer negative externality because others fuck it up and you are treated the same.
Regulation would fix that problem. Spray foam works just fine in Finland, although, we usually use mineral or glass wool already in construction phase. You must know how and where the dew point will be when you build or fix a wall.
A good example of negative externality.
(If you are a good libertarian, you believe they don't exist, or everything is fine).
You hire someone to do spray foaming properly, have no problems with it, but suffer negative externality because others fuck it up and you are treated the same.
Regulation would fix that problem. Spray foam works just fine in Finland, although, we usually use mineral or glass wool already in construction phase. You must know how and where the dew point will be when you build or fix a wall.