Hello everyone,
We are building a single-family house with an architect, without KfW certification. Poroton bricks (the ones with cavities), about 35 cm (14 inches) thick, will be used along with triple-glazed windows. Underfloor heating and a heat pump are also part of the plan.
According to the architect, additional external insulation is not necessary because the bricks have low thermal conductivity. Only around the roller shutter boxes will Styrodur insulation be installed. Since he advised us against a central ventilation system due to the costs—and I now regret not choosing it—I am now unsure about the insulation as well.
What are your thoughts?
We are building a single-family house with an architect, without KfW certification. Poroton bricks (the ones with cavities), about 35 cm (14 inches) thick, will be used along with triple-glazed windows. Underfloor heating and a heat pump are also part of the plan.
According to the architect, additional external insulation is not necessary because the bricks have low thermal conductivity. Only around the roller shutter boxes will Styrodur insulation be installed. Since he advised us against a central ventilation system due to the costs—and I now regret not choosing it—I am now unsure about the insulation as well.
What are your thoughts?
S
SaniererNRW12322 Aug 2022 22:27maulwurf79 schrieb:
I’m always amazed at how backwards building methods still are these days.What exactly is backward about solid construction? I prefer soundproofing with sand-lime brick or clinker brick rather than a wooden cabin with just some insulation in between 😉.Yes, insulation is easier to install your way. But it’s not cheaper than a traditional brick house. Unfortunately, nothing is cheaper than brick plus external thermal insulation composite system.
And your indoor climate must be a nightmare:
maulwurf79 schrieb:
PE foil sealed airtightSo you live inside a plastic-wrapped package? How awful is that?Note: The post may contain irony.
H
HoisleBauer2222 Aug 2022 23:45maulwurf79 schrieb:
With this wall construction, I have perfect sound insulation and very good thermal properties.I would like that too, but: How good are both really? Please put the numbers on the table ;-) (Let's leave out the energy savings cost-benefit calculation for now, I’d say, since I was already convinced during the house planning when switching from KfW 70 – those were the days! – to KfW 55, that was about 10 months ago 😉)Similar topics