ᐅ Timber Frame Construction – Is a 10 cm Exterior Wall Thickness Enough?

Good morning, we are looking to buy a single-family house that has a masonry ground floor and a timber panel construction (prefabricated) upper floor. The exterior walls of the timber panel construction are only about 10 cm (4 inches) thick in total. Is that sufficient, or would additional insulation definitely need to be added later? This is to avoid having to keep the heating on continuously during winter. Also, what costs could be expected?

Ask to see the heating cost statement. And 10cm (4 inches) is very little; I would have concerns just because of the sound insulation.

tomtom79 schrieb:

Ask to see the heating cost statement. And 10cm (4 inches) is very little—just considering sound insulation, I would be concerned.

Thank you for your reply.

• Type of energy certificate: energy consumption certificate
• Energy value: 184.1 kWh/(m²*a)
• Energy efficiency class: F

An elderly woman with dementia had lived there before and had annual heating costs of over 2000€.

The real estate agent said she probably just kept the heating running continuously.
So far, we have only seen the energy consumption certificate.

I am more concerned that the masonry walls will increase energy consumption.

Is it possible to find out how thick the walls are?

How old is the house?

What is the size of the house?

Gas heating?

If you want to reduce energy consumption, the only options are a thermal envelope and an efficient heating system. Otherwise, you have to expect around 2,000 per year.

icandoit schrieb:

I’m rather concerned that the masonry walls might be driving up the energy consumption.

Is it possible to find out how thick the walls are?

How old is the house?

What is the size of the house?

Gas heating?

If you want to reduce the energy consumption, then only a thermal envelope and an efficient heating system make sense. Otherwise, you’ll have to expect around 2k per year.

Thank you for your response.

Unfortunately, not right now. I only have that one photo, which gives a rough idea of the wall thickness.

The house is from 1980 and has 145m² (1560 sq ft).
The electrical system is also from 1980.
Heating: gas heating.

Unfortunately, I don’t have exact building dimensions available.

If you want to improve the insulation,
you should consider the entire house:
walls, windows, doors, roof.
The costs, roughly 100,000–150,000 euros, will never be fully recovered through savings,
so get professional advice and calculate carefully.