K
KaiHawaii17 Dec 2010 12:47Hello,
we are building a mid-terrace house and have the following issue:
The right neighbor is already building, so the construction of the party wall with the neighbor is clear. It consists of 17.5cm (7 inches) calcium silicate brick plus 2cm (1 inch) Odenwald board or mineral wool. So it will be calcium silicate brick – 2x 2cm (1 inch) Odenwald board – calcium silicate brick. According to my information, this is the standard construction method.
However, the left plot will not be developed in the foreseeable future! Therefore, the question arises how the left wall (which for now is an exterior wall) should be constructed so that it is protected from the weather and insulated. Our builder’s suggestion is also to use a 17.5cm (7 inches) calcium silicate brick plus 6cm (2.4 inches) insulation boards plus plaster, built right on the property boundary. This is said to be the optimal solution regarding moderate thermal insulation until the neighboring terrace house is built. The insulation should remain in place when the left side is eventually developed.
Is this a sensible approach? Are there any disadvantages in terms of sound insulation towards the neighbor when using the 6cm (2.4 inches) insulation boards compared to the Odenwald boards or bitumen-treated soft fiber boards, as they are also called?
For the 6cm (2.4 inches) insulation, we have already been informed of an additional cost of about 2000€, but the exact amount is not yet known. The left wall has approximately 100m² (1076 square feet) of surface area. Does anyone know how the price of the 2cm (1 inch) Odenwald boards compares to the 6cm (2.4 inches) insulation boards? Because only if the insulation boards are significantly more expensive than the Odenwald board, can I understand the price increase. The Odenwald board would then be omitted.
When the neighbor eventually builds, will the Odenwald board be applied to our plaster, or how is the likely construction detail?
Maybe someone here has already experienced a similar situation.
Thanks in advance!
we are building a mid-terrace house and have the following issue:
The right neighbor is already building, so the construction of the party wall with the neighbor is clear. It consists of 17.5cm (7 inches) calcium silicate brick plus 2cm (1 inch) Odenwald board or mineral wool. So it will be calcium silicate brick – 2x 2cm (1 inch) Odenwald board – calcium silicate brick. According to my information, this is the standard construction method.
However, the left plot will not be developed in the foreseeable future! Therefore, the question arises how the left wall (which for now is an exterior wall) should be constructed so that it is protected from the weather and insulated. Our builder’s suggestion is also to use a 17.5cm (7 inches) calcium silicate brick plus 6cm (2.4 inches) insulation boards plus plaster, built right on the property boundary. This is said to be the optimal solution regarding moderate thermal insulation until the neighboring terrace house is built. The insulation should remain in place when the left side is eventually developed.
Is this a sensible approach? Are there any disadvantages in terms of sound insulation towards the neighbor when using the 6cm (2.4 inches) insulation boards compared to the Odenwald boards or bitumen-treated soft fiber boards, as they are also called?
For the 6cm (2.4 inches) insulation, we have already been informed of an additional cost of about 2000€, but the exact amount is not yet known. The left wall has approximately 100m² (1076 square feet) of surface area. Does anyone know how the price of the 2cm (1 inch) Odenwald boards compares to the 6cm (2.4 inches) insulation boards? Because only if the insulation boards are significantly more expensive than the Odenwald board, can I understand the price increase. The Odenwald board would then be omitted.
When the neighbor eventually builds, will the Odenwald board be applied to our plaster, or how is the likely construction detail?
Maybe someone here has already experienced a similar situation.
Thanks in advance!
B
Bauexperte17 Dec 2010 15:45Hello Kai,
I have no idea what that term means... but the following
is a good solution!
If a neighbor comes later—no matter when—they simply build their sand-lime brick wall with a 2.0/3.0 cm (0.8/1.2 inches) ventilation gap attached to your party wall. The only drawback with this approach, or a semi-detached house solution when only one partner is involved, is that you lose _some_ living space according to the current thickness of the party wall plus insulation.
Best regards
KaiHawaii schrieb:
...Odenwaldplatte
I have no idea what that term means... but the following
KaiHawaii schrieb:
...Our builder’s proposal is also a 17.5cm (7 inches) sand-lime brick plus 6cm (2.5 inches) insulation boards plus plaster, built right on the property boundary. That should be the optimal solution regarding moderate thermal insulation until the neighboring townhouse is constructed. The insulation is supposed to remain in place when the house on the left is eventually built.
is a good solution!
If a neighbor comes later—no matter when—they simply build their sand-lime brick wall with a 2.0/3.0 cm (0.8/1.2 inches) ventilation gap attached to your party wall. The only drawback with this approach, or a semi-detached house solution when only one partner is involved, is that you lose _some_ living space according to the current thickness of the party wall plus insulation.
Best regards
K
KaiHawaii17 Dec 2010 15:58Hello, first of all, thank you for your quick reply.
I found the term Odenwald board online; alternatively, bituminized soft fiberboard is also used.
I understand that we will lose some living space, but we can manage that.
Could you explain your opinion? Can you say something about sound insulation and cost (insulation boards compared to "regular" intermediate boards)?
What do you mean by ventilation—actual "air" or some kind of filling material?
I found the term Odenwald board online; alternatively, bituminized soft fiberboard is also used.
I understand that we will lose some living space, but we can manage that.
Could you explain your opinion? Can you say something about sound insulation and cost (insulation boards compared to "regular" intermediate boards)?
What do you mean by ventilation—actual "air" or some kind of filling material?
B
Bauexperte17 Dec 2010 16:22Hello Kai,
With sand-lime brick, sound insulation is not an issue if the same "rules" are followed on the other side; and yes, I really meant air.
Prices are a tricky subject. We recently faced a similar situation. We estimated around €2,300 for a 24cm (9.5 inches) sand-lime brick wall plus 16cm (6.3 inches) external thermal insulation composite system (ETICS) on a building measuring 8.0 x 11.0 meters (26.2 x 36.1 feet).
Best regards
KaiHawaii schrieb:
...I understand that we will lose some living space, but we can accept that. Can you explain your opinion? Can you say something about sound insulation and price (insulation boards compared to "regular" intermediate slabs)? What do you mean by ventilation, actual "air" or some kind of filling material?
With sand-lime brick, sound insulation is not an issue if the same "rules" are followed on the other side; and yes, I really meant air.
Prices are a tricky subject. We recently faced a similar situation. We estimated around €2,300 for a 24cm (9.5 inches) sand-lime brick wall plus 16cm (6.3 inches) external thermal insulation composite system (ETICS) on a building measuring 8.0 x 11.0 meters (26.2 x 36.1 feet).
Best regards
K
KaiHawaii17 Dec 2010 16:36Hello,
I need to ask for clarification: does the €2300 include the calcium silicate bricks, or is it only for the 16cm (6 inch) ETICS insulation system?
I was expecting only an additional cost for the 6cm (2.5 inch) insulation boards, especially since the usually installed 2cm (0.8 inch) soundproofing layer is no longer needed and should therefore be deducted.
What should be applied on top of the 6cm (2.5 inch) ETICS? Is a base coat sufficient?
I need to ask for clarification: does the €2300 include the calcium silicate bricks, or is it only for the 16cm (6 inch) ETICS insulation system?
I was expecting only an additional cost for the 6cm (2.5 inch) insulation boards, especially since the usually installed 2cm (0.8 inch) soundproofing layer is no longer needed and should therefore be deducted.
What should be applied on top of the 6cm (2.5 inch) ETICS? Is a base coat sufficient?
B
Bauexperte17 Dec 2010 16:55Hello Kai,
No problem, it’s my own fault for giving a too brief answer.
We usually install a 175mm (7 inch) sand-lime brick as the partition wall when the second half of the semi-detached house is also being built. In the example mentioned, this is in my opinion not the case for the long term, because the neighboring plot has a more complicated shape. Therefore, at our client’s request, we planned a 240mm (9.5 inch) sand-lime brick wall plus ETICS, motto: better safe than sorry; the loss of living space – as requested by the client – was not an issue.
So, the price I quoted includes the additional cost of upgrading from 175mm (7 inch) to 240mm (9.5 inch) sand-lime bricks, the 16cm (6 inch) ETICS, and the synthetic resin render.
Kind regards
KaiHawaii schrieb:
I need to ask for clarification: Does the €2300 include the sand-lime bricks, or is it only for the 16cm (6 inch) external thermal insulation composite system (ETICS)? I was expecting only an additional cost for the 6cm (2.4 inch) insulation boards since the normally installed 2cm (0.8 inch) soundproofing board would be omitted and thus should be deducted. What else should go on top of the 6cm (2.4 inch) ETICS? Would a base coat be sufficient?
No problem, it’s my own fault for giving a too brief answer.
We usually install a 175mm (7 inch) sand-lime brick as the partition wall when the second half of the semi-detached house is also being built. In the example mentioned, this is in my opinion not the case for the long term, because the neighboring plot has a more complicated shape. Therefore, at our client’s request, we planned a 240mm (9.5 inch) sand-lime brick wall plus ETICS, motto: better safe than sorry; the loss of living space – as requested by the client – was not an issue.
So, the price I quoted includes the additional cost of upgrading from 175mm (7 inch) to 240mm (9.5 inch) sand-lime bricks, the 16cm (6 inch) ETICS, and the synthetic resin render.
Kind regards
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