Stop in for a cup of coffee

Mattax said

Can't speak to newer houses but older houses rarely had any insulation. If not - first place it was added was the attic floor, then walls.
With central heat and hot water - the furnace and heater was usually in the basement. The heat from the furnace warms the floor so really no reason to insulate.
Over the coal bin - that's where I'll sometimes see the cieling above covered.

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I see. The house I have in Norway, the basement is always cold. In newer homes the basement might be divided into separate rooms, bedrooms, or a living space with a tv for example, but always one or more rooms stays very cold and is used for storing food. Like potatoes, carrots, rutabaga. Here in California we have no opportunities for that, so we live as expensive as it is possible to do buying only 2.5 lbs of potato at a time, maybe 5 lbs if we are having guests. And it torques me to no end.

I am also used to having the bedrooms considerable colder than the other rooms, so therefor all the walls inside is insulated too. Interesting how different things can be from country to country.

I did not understand why the ceiling over the coal bin needed to be insulated, is it because it is cold there ?

Bill