ᐅ Is it practical to use material for exterior walls without insulation?

Hello everyone,

I’m new to the forum and currently planning a house.
I already have a quote that includes exterior walls made of 36.5cm (14.4 inches) Poroton blocks without external insulation, just plaster.
Does that make sense, or would you advise against it?

With this construction method, would you recommend adding reinforcement to the exterior plaster to prevent possible cracking?

According to my scope of work description:
For the exterior plaster system, a lime-cement plaster with a thickness of 1.5cm to 2.0cm (0.6 to 0.8 inches) is applied onto the Poroton masonry. On top of that, a finishing coat is applied using a 2mm (0.08 inches) synthetic resin plaster.

Reinforcement is only listed in the scope of work for the version with external insulation, which we are not doing.

I’m looking forward to your opinions.

Best regards,
alex-md

Reinforcement is standard with exterior plaster. 36.5 without insulation is possible if at least 0.09.

We live in a house like this. Monolithic wall construction. No insulation boards, no algae growth on the facade in the north, the mailbox is screwed on, what more could you want?

alex-md schrieb:
Hello everyone,

I’m new to the forum and currently planning a house.
I already have an offer that includes exterior walls made of 36.5cm (14½ inches) Poroton blocks without external insulation, just plaster.
Does that make sense, or would you advise against it?

Maybe I’m the only one who doesn’t understand the question. What exactly are your concerns?

Obstlerbaum schrieb:
Maybe I'm the only one who doesn't understand the question. What exactly are your concerns?

Lack of knowledge and the typical image associated with insulation are always an issue...

Bookstar schrieb:
Reinforcement is standard with exterior plaster. 36.5 without insulation is possible if at least 0.09.

What does 0.09 refer to, the thermal conductivity?