ᐅ Timber frame construction 1969 – external thermal insulation composite system (ETICS) on Heraklith boards
Created on: 28 Jun 2011 18:30
C
charminbaer78C
charminbaer7828 Jun 2011 18:30Hello,
we are considering purchasing a single-family house built in 1969. The upper floor is constructed using a timber frame method. Until now, I wasn’t really a fan of timber construction. But somehow, the house feels right!
First of all, we are looking for a general orientation regarding the possibilities for us.
The option for external wall insulation (besides pollutant testing) is an important criterion for our purchase.
The current wall construction (from inside to outside):
1.5cm (0.6 inch) drywall
2.5cm (1 inch) particleboard V20
4cm (1.6 inch) air space (static)
6cm (2.4 inch) glass wool
5cm (2 inch) cement-bonded wood wool board (Heraklith)
2cm (0.8 inch) lime plaster
An Isofloc blown-in insulation (instead of the 4cm air space) would certainly improve the situation, but still wouldn’t meet the standard we are aiming for.
Is it possible to install an external thermal insulation composite system (ETICS / external wall insulation) on the Heraklith board? To reach the required value at least theoretically, between 16 and 20cm (6.3 to 7.9 inches) of Neopor insulation would be necessary. My intuition resists this idea, but I am open to being proved wrong. Are there other reasonable insulation options without completely tearing down the wall?
What about formaldehyde in the V20 particleboards? I know that 98% of all particleboards contain formaldehyde, but was it worse in the 1970s compared to today?
we are considering purchasing a single-family house built in 1969. The upper floor is constructed using a timber frame method. Until now, I wasn’t really a fan of timber construction. But somehow, the house feels right!
First of all, we are looking for a general orientation regarding the possibilities for us.
The option for external wall insulation (besides pollutant testing) is an important criterion for our purchase.
The current wall construction (from inside to outside):
1.5cm (0.6 inch) drywall
2.5cm (1 inch) particleboard V20
4cm (1.6 inch) air space (static)
6cm (2.4 inch) glass wool
5cm (2 inch) cement-bonded wood wool board (Heraklith)
2cm (0.8 inch) lime plaster
An Isofloc blown-in insulation (instead of the 4cm air space) would certainly improve the situation, but still wouldn’t meet the standard we are aiming for.
Is it possible to install an external thermal insulation composite system (ETICS / external wall insulation) on the Heraklith board? To reach the required value at least theoretically, between 16 and 20cm (6.3 to 7.9 inches) of Neopor insulation would be necessary. My intuition resists this idea, but I am open to being proved wrong. Are there other reasonable insulation options without completely tearing down the wall?
What about formaldehyde in the V20 particleboards? I know that 98% of all particleboards contain formaldehyde, but was it worse in the 1970s compared to today?