How to build homes with virtually no heating (2020)

Re:How to build homes with virtually no heating (2020) by sb057 on Tuesday January 18, 2022 @02:20AM (#29976113)

>The profit difference between a well-isolated passive building and one that merely meets the minimal standards, is often very small, so why bother building a passive building?

People making decisions about which contractor to use (both for public and private projects) are often mandated to choose the absolute cheapest bidder, sometimes with the ability of choosing a different one if they file mountains of paperwork explaining why.

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Re:How to build homes with virtually no heating (2020) by pjerem on Tuesday January 18, 2022 @05:27AM (#29977250)

That's what norms are for.

If minimal thermal requirements are written in the law, even the cheapest builder must build a highly insulated home. In my country, it's mandatory to have well insulated home, to prove (with tests) that you respect the norms, and it's also mandatory to have renewable heat source (mainly heat pumps). Sure, it costs a little more, but with the rise of real estate prices, it's still way cheaper to build well insulated houses.

The building cost since those new norms increased about maybe dozens of thousands euros. It's not even a lot given the exceptional thermal comfort you get from your money.

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