ᐅ Concrete blocks & exterior insulation House built in 1973, roof structure

I am going to renovate a house built in 1973. It was constructed using concrete blocks. I mainly want to replace the windows and insulate the roof structure. But does exterior insulation make sense for concrete blocks? (Heating is done with oil and a wood-burning stove.) Does it make sense to insulate only the side exposed to the weather?

THANK YOU!

stelim schrieb:
....Or does external insulation make sense with concrete blocks? (Heating is done with oil and a wood stove)

If you want to counter the sharply rising energy costs, it should be worthwhile.

stelim schrieb:
....Is it sensible to insulate only the windward side?

Hardly. That’s saving money in the wrong place!

Best regards