Hello.
We have now received several quotes for our planned single-family house (BT). Two of them are based on thin exterior walls with external thermal insulation composite systems (ETICS), while two want to build the shell using Wienerberger T10 bricks with a thickness of 36.5cm (14.4 inches). I definitely prefer a thick wall without plastic-based materials.
Therefore, I favor a monolithic construction method. The current quote includes the Wienerberger T10 brick. Over the weekend, I looked through Wienerberger brochures, especially about the T9 with the V-Plus system, and also read about it online.
The thermal insulation values are clearly better (between T10 and T9). What kind of additional cost can I expect for this? The house will be about 9x9m (29.5x29.5 feet) with a basement, ground floor, and attic. An approximate figure would be sufficient.
Is the extra cost worth it? I would rather skip a "nice-to-have" feature like a chimney flue and instead invest in the exterior masonry if the budget allows.
We have now received several quotes for our planned single-family house (BT). Two of them are based on thin exterior walls with external thermal insulation composite systems (ETICS), while two want to build the shell using Wienerberger T10 bricks with a thickness of 36.5cm (14.4 inches). I definitely prefer a thick wall without plastic-based materials.
Therefore, I favor a monolithic construction method. The current quote includes the Wienerberger T10 brick. Over the weekend, I looked through Wienerberger brochures, especially about the T9 with the V-Plus system, and also read about it online.
The thermal insulation values are clearly better (between T10 and T9). What kind of additional cost can I expect for this? The house will be about 9x9m (29.5x29.5 feet) with a basement, ground floor, and attic. An approximate figure would be sufficient.
Is the extra cost worth it? I would rather skip a "nice-to-have" feature like a chimney flue and instead invest in the exterior masonry if the budget allows.
B
Bauexperte10 Sep 2010 10:06Hello,
I only trust statistics that I have manipulated myself So “what” exactly did you “read” and “where”?
I have already mentioned several times here that a 36.5cm (14.4 inches) masonry wall (aerated concrete) with suitable technology inside the house very comfortably achieves a KfW 70 efficiency house => attachment
Obviously, someone has unsettled you quite a bit.
I don’t know who you want to build with: for example, I offer my clients both hollow clay bricks with external thermal insulation composite systems (ETICS) and aerated concrete without additional insulation at a neutral price. I see no reason why other reputable suppliers should differentiate here, as both options are roughly comparable in total exterior wall costs.
Kind regards
Bulla2000 schrieb:
I have now seen alarming figures: with a T10 wall at 36.5cm (14.4 inches) thickness, you will never meet the 2009 Energy Saving Ordinance standard, let alone KfW70. With T9, you barely meet the 2009 Energy Saving Ordinance.
I only trust statistics that I have manipulated myself So “what” exactly did you “read” and “where”?
I have already mentioned several times here that a 36.5cm (14.4 inches) masonry wall (aerated concrete) with suitable technology inside the house very comfortably achieves a KfW 70 efficiency house => attachment
Bulla2000 schrieb:
For me, that means either thinner walls plus plastic insulation on the outside or double-wall construction. Both are significantly more expensive and therefore not affordable. House building over...?
Obviously, someone has unsettled you quite a bit.
I don’t know who you want to build with: for example, I offer my clients both hollow clay bricks with external thermal insulation composite systems (ETICS) and aerated concrete without additional insulation at a neutral price. I see no reason why other reputable suppliers should differentiate here, as both options are roughly comparable in total exterior wall costs.
Kind regards
B
Bauexperte10 Sep 2010 17:57Hello,
With all due respect, that is nonsense and has nothing to do with the requirements of a KfW 70 energy-efficient house. Double insulation in the attic is at most a consequence of the local development plan regarding soundproofing regulations for the property.
Kind regards
Bulla2000 schrieb:
....for example, double roof insulation....
With all due respect, that is nonsense and has nothing to do with the requirements of a KfW 70 energy-efficient house. Double insulation in the attic is at most a consequence of the local development plan regarding soundproofing regulations for the property.
Kind regards
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