ᐅ New Construction of a Single-Family Home Single-family home, 125 square meters, located in Brandenburg
Created on: 11 Jul 2018 10:28
M
Maddin.m
Hello dear forum, I have already read a lot and received useful information. Unfortunately, I am a complete beginner when it comes to building a house, but my wife and I still want to fulfill our dream of owning our own home. I received the following offer from my home construction company.
Single-family house, 1½ stories – solid construction, 125sqm (1350 sq ft) living area.
The foundation slab consists of 18cm (7 inches) waterproof concrete with 8cm (3 inches) vertical insulation, surrounding depth 40–60cm (16–24 inches). On top, a floating screed with perimeter insulation strips will be installed. The total build-up height is 16.5cm (6.5 inches).
The exterior walls are made from porous perforated bricks 24cm (9.5 inches), with 16cm (6 inches) polystyrene external thermal insulation composite system (ETICS) boards with a thermal conductivity of 0.032 W/mK, and a silicone-based fine texture render.
The windows installed have insulated glazing with triple-pane glass.
The roof insulation consists of 24cm (9.5 inches) insulation with a thermal conductivity of 0.035 W/mK. A Rotex heat pump HPSU Compact 304 is planned for heating.
I would like to know from you if these components generally make sense and if they would result in a very energy-efficient house. I am also interested in what you would suggest changing or adding.
– foundation slab?
– increase exterior insulation on ETICS to 24cm (9.5 inches)?
The Rotex heat pump will likely be combined with a solar thermal system. An efficient heating solution as well as the use of domestic hot water is important to me. Heating will be provided via underfloor heating (pipes with 0.035 W/mK). No ventilation system will be installed. I thank you in advance for useful ideas, suggestions, and help.
Best regards, Martin
Single-family house, 1½ stories – solid construction, 125sqm (1350 sq ft) living area.
The foundation slab consists of 18cm (7 inches) waterproof concrete with 8cm (3 inches) vertical insulation, surrounding depth 40–60cm (16–24 inches). On top, a floating screed with perimeter insulation strips will be installed. The total build-up height is 16.5cm (6.5 inches).
The exterior walls are made from porous perforated bricks 24cm (9.5 inches), with 16cm (6 inches) polystyrene external thermal insulation composite system (ETICS) boards with a thermal conductivity of 0.032 W/mK, and a silicone-based fine texture render.
The windows installed have insulated glazing with triple-pane glass.
The roof insulation consists of 24cm (9.5 inches) insulation with a thermal conductivity of 0.035 W/mK. A Rotex heat pump HPSU Compact 304 is planned for heating.
I would like to know from you if these components generally make sense and if they would result in a very energy-efficient house. I am also interested in what you would suggest changing or adding.
– foundation slab?
– increase exterior insulation on ETICS to 24cm (9.5 inches)?
The Rotex heat pump will likely be combined with a solar thermal system. An efficient heating solution as well as the use of domestic hot water is important to me. Heating will be provided via underfloor heating (pipes with 0.035 W/mK). No ventilation system will be installed. I thank you in advance for useful ideas, suggestions, and help.
Best regards, Martin
Maddin.m schrieb:
The planned single-family house will, of course, be built as a solid construction. My main focus is on energy efficiency. The wall structure description sounds to me more like insulation obsession rather than solid construction. For a one-and-a-half story house with 125 sqm (1,345 sq ft) of living space, I wouldn’t put so much emphasis only on the exterior walls, since the roof area also contributes significantly to the building envelope in proportion.
Energy efficiency is almost a contradictory term, because if you want to go beyond the Energy Saving Ordinance with something like KfW double turbo, from an economic perspective it certainly won’t be worthwhile. In other words: a large additional investment without any measurable reduction in the heating bills.
The Energy Saving Ordinance can also be met with a genuinely “solid” house; KfW55 is a matter of personal preference, and KfW40 in my opinion is the “icing on the cake” for people who absolutely want the image of a showcase environmentalist.
You can “afford” that if the public sector [“ÖD”] income of the main earner is at least A14. Otherwise, a modest 125 sqm (1,345 sq ft) doesn’t sound so modest at first glance.
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B
Baurevolution13 Jul 2018 09:43This planned solid construction house represents the insulation construction method.
This insulation method does not work, neither in theory nor in practice, as can be seen everywhere!
I am a master bricklayer and have been exposed to many, many asbestos fibers, glass wool fibers, and countless mold spores. The trowels are now hanging on the wall because it is high time to put an end to this madness!
I recently wrote a blog post on my site titled: Facade Insulation!
There is no definition for facade insulation on Wikipedia! Why?
It is just a passing trend!
With asbestos and wood preservatives, it took a long time, but eventually a law and ban were introduced!
Ask your “solid house builder” why they use a value that is only achieved in a laboratory? Ask for the effective U-value.
You are looking for efficiency in the house! The U-value misses efficiency completely. That is why the true U-value includes the word efficiency. Effective U-value!
Christoph Jaskulski
Baurevolution
This insulation method does not work, neither in theory nor in practice, as can be seen everywhere!
I am a master bricklayer and have been exposed to many, many asbestos fibers, glass wool fibers, and countless mold spores. The trowels are now hanging on the wall because it is high time to put an end to this madness!
I recently wrote a blog post on my site titled: Facade Insulation!
There is no definition for facade insulation on Wikipedia! Why?
It is just a passing trend!
With asbestos and wood preservatives, it took a long time, but eventually a law and ban were introduced!
Ask your “solid house builder” why they use a value that is only achieved in a laboratory? Ask for the effective U-value.
You are looking for efficiency in the house! The U-value misses efficiency completely. That is why the true U-value includes the word efficiency. Effective U-value!
Christoph Jaskulski
Baurevolution
Baurevolution schrieb:
There is no definition for facade insulation on Wikipedia! Why? Counter question: who cares about Wikipedia? It’s a general platform and irrelevant when it comes to building regulations. People can have their own opinions on insulation trends—I openly belong to the group that sees little sense in some of it—but you don’t have to deny the existence of facade insulation just because Wikipedia doesn’t define it. It still means something—and, in my experience, it is pretty straightforward: materials that slow down heat transfer through a wall; these are called insulating materials because their purpose is insulation only, not providing any structural support to the wall (unlike, for example, porous bricks behind them, which are called building materials). This classification is practical and understandable for the average person, regardless of what Wikipedia says.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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