R
Roadmaker5 Jul 2015 18:09Hello,
we are in the process of buying a prefabricated bungalow-style house. Due to the low purchase price, we are willing to undertake the renovation! (I have studied the topic extensively and thought it through carefully, but unfortunately most information refers to older posts.)
Now my question is whether I should apply an insulation plaster or go for a wooden facade. Visually, I prefer the wooden facade (white-glazed larch wood).
Is it also feasible in terms of thermal insulation?
Does anyone have suggestions on how to implement this?
The current wall construction is as follows:
8 mm (0.3 inches) asbestos cement boards
20 mm (0.8 inches) air gap
10 mm (0.4 inches) wood chipboard FP/Y DIN 68761 laminated V100
90 mm (3.5 inches) timber framing
80 mm (3.1 inches) mineral wool
Vapor barrier (transparent plastic foil)
18 mm (0.7 inches) gypsum plasterboard
The facade will be completely removed from the outside up to the framing and the gypsum boards.
Best regards
Andreas
we are in the process of buying a prefabricated bungalow-style house. Due to the low purchase price, we are willing to undertake the renovation! (I have studied the topic extensively and thought it through carefully, but unfortunately most information refers to older posts.)
Now my question is whether I should apply an insulation plaster or go for a wooden facade. Visually, I prefer the wooden facade (white-glazed larch wood).
Is it also feasible in terms of thermal insulation?
Does anyone have suggestions on how to implement this?
The current wall construction is as follows:
8 mm (0.3 inches) asbestos cement boards
20 mm (0.8 inches) air gap
10 mm (0.4 inches) wood chipboard FP/Y DIN 68761 laminated V100
90 mm (3.5 inches) timber framing
80 mm (3.1 inches) mineral wool
Vapor barrier (transparent plastic foil)
18 mm (0.7 inches) gypsum plasterboard
The facade will be completely removed from the outside up to the framing and the gypsum boards.
Best regards
Andreas
J
jupartner5 Jul 2015 22:52Hi Andreas, be careful—if you described the structure correctly, the V100 on the outside is a bracing panel! Check again with a carpenter; they are trained in structural engineering and can handle cases like this.
You can also put your insulation on the V100. Insulating plaster is exactly right because of its vapor permeability. With a wooden facade, the vapor permeability is even better – the house can really “breathe,” but it also works fine with insulating plaster.
A quick tip: if you achieve a U-value of 0.2 W/m²K (0.035 BTU/ft²·h·°F) with your walls, you can get a 10% bonus on your investment costs. If you replace the windows and heating system at the same time, this probably applies to those as well.
The carpenter can calculate the U-value for you. I can also do it for a small fee.
Best regards and good luck,
Susanne
You can also put your insulation on the V100. Insulating plaster is exactly right because of its vapor permeability. With a wooden facade, the vapor permeability is even better – the house can really “breathe,” but it also works fine with insulating plaster.
A quick tip: if you achieve a U-value of 0.2 W/m²K (0.035 BTU/ft²·h·°F) with your walls, you can get a 10% bonus on your investment costs. If you replace the windows and heating system at the same time, this probably applies to those as well.
The carpenter can calculate the U-value for you. I can also do it for a small fee.
Best regards and good luck,
Susanne
That's right, the chipboard has structural functions. So be careful.
However, you can have an exterior thermal insulation composite system (ETICS) installed on it. Check the ceiling towards the roof. The insulation is probably 40 or 80 mm (1.5 or 3 inches). You will need to address that as well. Replacing the windows is also necessary.
If you have any further questions, feel free to contact me—former employee.
By the way, these walls are not breathable. There is a vapor barrier on the inside.
However, you can have an exterior thermal insulation composite system (ETICS) installed on it. Check the ceiling towards the roof. The insulation is probably 40 or 80 mm (1.5 or 3 inches). You will need to address that as well. Replacing the windows is also necessary.
If you have any further questions, feel free to contact me—former employee.
By the way, these walls are not breathable. There is a vapor barrier on the inside.
R
Roadmaker6 Jul 2015 21:31Thanks first of all for the responses!
The particle boards will be removed anyway due to possible loads. They will be replaced with 22mm (7/8 inch) OSB boards. Is an 80-90mm (3-3.5 inch) thick insulation sufficient, or does the stud wall need to be doubled up to achieve thicker insulation?
Can someone provide me with a detailed wall construction? The facade should definitely be made of wood.
I only want to keep the studs and the interior drywall panels.
Best regards, Andreas
The particle boards will be removed anyway due to possible loads. They will be replaced with 22mm (7/8 inch) OSB boards. Is an 80-90mm (3-3.5 inch) thick insulation sufficient, or does the stud wall need to be doubled up to achieve thicker insulation?
Can someone provide me with a detailed wall construction? The facade should definitely be made of wood.
I only want to keep the studs and the interior drywall panels.
Best regards, Andreas
Gypsum board, vapor retarder, 80 mm (3 inches) mineral wool, particle board, air layer, cladding panel.
The insulation is no longer up to date. It would be possible to add additional insulation on top of the OSB board and then install the wooden facade. The timber studs rest on a wooden bottom plate. If you double up the timber studs, they will be unsupported at the top and bottom.
Please specify the house type and whether there is an attic conversion or not.
Regards, Rudolf
The insulation is no longer up to date. It would be possible to add additional insulation on top of the OSB board and then install the wooden facade. The timber studs rest on a wooden bottom plate. If you double up the timber studs, they will be unsupported at the top and bottom.
Please specify the house type and whether there is an attic conversion or not.
Regards, Rudolf
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