The insulation provided by most home builders is shockingly poor.

Today I signed a contract to buy the home of my high school classmate, Mr. M.
I have another friend who has put down roots in Kakogawa. That's a good thing.
Recently, I had many opportunities to see the insulation specifications of housing manufacturers, and I felt that
The insulation provided by most major home builders is shockingly poor.
To be honest, I've only been doing it a little since I worked for a manufacturer (13 years ago).
I get the impression that there has been no progress. (However, Ichijo Komuten and Sweden House are
(Excluding these two companies. The insulation of these two companies is outstanding.)
We have already obtained the next-generation energy-saving certification, which is called type certification,
Most manufacturers have floor space of less than 35 tsubo, which puts them at a disadvantage in terms of Q value.
If you calculate each building individually, it would easily be below 2.7.
The insulation of the exterior walls is 80mm of 10k glass wool (not high performance).
There are even manufacturers like this... And they are top-notch manufacturers.
Why is this continuing?
It's easy to change the factory line because of its large size.
I know that the structural performance is poor. But
It's not an easy thing to change, but we must continue to promote energy conservation.
What should I do...??
The solution to this problem is solar power generation, ENE-FARM, storage batteries, etc.
It is a smart house that relies on equipment.
I think I've written something similar before, but this is the reason why smart houses came about.
What exactly is smart about this?
To put it in perspective, it's like carrying around a lot of hand warmers while wearing shorts and short sleeves on a cold winter's day.
What's more, the heater is controlled by a microcomputer...
It costs money, it's hard to tell if it's warm or cold, and most importantly, common sense
This is unthinkable behavior. If you see someone doing this on the street,
The only thing you can think is that they're crazy.
Such crazy things are being done without any hesitation before the performance of the outer skin is improved.
This is a smart house that is equipped with facilities. First, improve the exterior performance.
It is also cost-effective, eliminating the need to spend millions on unnecessary equipment.
This method of cheating with equipment may be acceptable for a few more years, but the standards
As prices rise and the public's expectations rise, at some point manufacturers
There will come a time when reform is necessary.
Personally, I expect that this will happen within the next five years.