Hello everyone! I am in the process of planning a house and am about to sign the contract. The house has two stories with 60sqm (650 sq ft) on the ground floor and 60sqm (650 sq ft) upstairs. It has a cavity wall construction with 17.5cm (7 inches) aerated concrete, standard 12cm (5 inches) insulation, and facing bricks. Would 14cm (6 inches) insulation be much more expensive? It’s only the material cost, right? How much could that be..?
You will need to ask your supplier. Or are you planning to do the insulation work yourself? If not, it will cost exactly what your supplier charges, regardless of the material price.
Changing the building materials also means the energy performance certificate must be recalculated, unless your supplier already has a template for this.
Hardly anyone will be able to answer this question for you here.
Changing the building materials also means the energy performance certificate must be recalculated, unless your supplier already has a template for this.
Hardly anyone will be able to answer this question for you here.
B
Bauexperte4 Apr 2013 10:02Hello,
What exactly do you want to achieve with the additional insulation, aside from reducing the usable floor area? What price increase is your builder quoting?
Regards, Bauexperte
Alex-NRW schrieb:
The house has two floors with 60 sqm (645 sq ft) downstairs and 60 upstairs. Double-layer masonry construction with 17.5 cm (7 inches) aerated concrete, standard 12 cm (5 inches) insulation and facing brick. Would 14 cm (5.5 inches) insulation be much more expensive?
What exactly do you want to achieve with the additional insulation, aside from reducing the usable floor area? What price increase is your builder quoting?
Regards, Bauexperte
Hello,
Best regards
Alex-NRW schrieb:What planning skills do you have? What is your educational background?
... I am in the process of planning a house and am about to sign the contract.
Best regards
Hello everyone,
it is generally possible to provide the builder or other trades with materials such as insulation if you can get them cheaper...
Then you only negotiate the labor cost, right? If the builder doesn’t agree, you can ask someone else.
You are not obligated to stick with one builder if you put the work out to tender.
Best regards, Frank
it is generally possible to provide the builder or other trades with materials such as insulation if you can get them cheaper...
Then you only negotiate the labor cost, right? If the builder doesn’t agree, you can ask someone else.
You are not obligated to stick with one builder if you put the work out to tender.
Best regards, Frank
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