Zero-energy Attefall. How would you have done it?

[fribygg]

The question is how many passive or zero-energy houses are built from timber logs, I guess very few...

That is probably the case, but why couldn't it be done?

 

[oliven1]

Doesn't that depend on the geographical location?

nah, always flat on the ground.
when do you mean a plintgrund would be better`

 

[fribygg]

when do you mean pillar foundation would be better`

Has someone claimed that a pillar foundation would be better?

 

[oliven1]

Remember that just because you have built lots of low-energy houses, it doesn't automatically mean you are right. There are still plenty of different variants you can build; you just have to know the basic physics and the goal.

A few years ago, about 10, it was somewhat difficult to find good suppliers for low-energy house components. Today, it's quite easy to find passive house windows and doors. Even though stylish doors in the right style can be challenging. There, you can advantageously build a cold porch as a sluice.

but that's what I'm saying, just because you find materials that work, it's only a small part.
you also have to be able to build low-energy.

You cannot install your window the standard way; you have to do it in a special way with detail.
this applies to all construction parts.

For example, how do you install windows in a low-energy house?

 

[oliven1]

Saving this statement for the future.
TS or someone else's build will eventually be classified and approved as a low-energy house and thus prove that it's possible to build.

if one does not understand why, then they might be far removed from how a passive house works, so it's not really possible to discuss with that person.

you seem to lack fundamental knowledge on passive house construction.

 

[fribygg]

if you don't understand why, then you might be far from understanding how a passive house works, so it's not really possible to discuss with that person.

you seem to lack basic knowledge about passive house construction.

The original poster is considering a house with heating in the form of a heat pump and a fireplace, which you will notice if you read the thread, so it's not a passive house.

 

[oliven1]

TS is considering a house with heating in the form of a heat pump and a stove, which you will notice if you read the thread, so not a passive house.

Quote: "I've started considering building a zero-energy house in Attefall format."

Zero-energy house has higher requirements than passive house.

 

[Rabbithole]

if you don't understand why, then maybe you are far from how a passive house works, so it's not really possible to discuss with that person.

you seem to lack basic knowledge about passive house building.

I think you can drop your condescending tone and leave if you don't want to contribute constructively. You seem to be able to follow an instruction book, congratulations.

According to my understanding, TS does not aim to build a certified passive house but rather an energy-efficient cabin that should be viable even if it were to stand off-grid.

Energy consumption is a gray scale, and the more energy-efficient you build, the more important small details become. At the same time, additional insulation becomes less important the thicker it is.

 

[Rabbithole]

but that's what I'm saying, just because you find materials that work, it's only a small part.
you also have to be able to build low-energy.

You can't mount your window the standard way; you have to do it in a special way in detail.
this applies to all construction parts.

For example, how do you mount windows in a low-energy house?

Mount the window in the insulation layer to avoid and connect the waterproofing carefully.

That's as generally as you can describe it without going into detail about which wall and window you use.

Some are mounted from the outside with an external flange and fill the gap with foam.
My passive house windows are mounted with frame screws.

 

[Ulltand]

In my opinion, TS does not aim to build a certified passive house but rather an energy-efficient cabin that should be able to stand off-grid.

Energy consumption is a grayscale, and the more efficient you build, the more important small details become. At the same time, additional insulation becomes less significant as it gets thicker.

Yes, that's how it is. And since there are no such houses in an Attefall format, one should see this as an idea thread.

 

[Rabbithole]

I like the idea of a well-insulated cabin. A wood stove and solar panels for convenience. It can easily get overly warm when you fire up the stove, but incredibly cozy with a fire 😀

 

[Ulltand]

Mount the window in the insulation layer to avoid and carefully connect the waterproofing layer.

That's generally how you can describe it without going into details about which wall and window you use.

Some are mounted from the outside with an external flange and foam the gap.
My passive house windows are mounted with frame screws

The dew point is deep in the wall, so the waterproofing layer shouldn't be neglected.

An FTX system adjusted with slight negative pressure.

Preferably slab on grade to handle the building height.

Insulation 200 mm PIR, equivalent to about 350 mm mineral wool. Sliding tracks on log wall?

Expensive windows with a U-value below 1 with solar shading on the south side.

Window placement inside the wall.

LLVP

Wood-burning stove with a water coil for hot water heating.

Solar panels on the roof and on the south-facing wall with battery storage. Can you get some electricity with low solar height in winter and no snow problems.

Maybe it's time to run the house in an energy simulation program now

 

[oliven1]

Mount the window in the insulation layer to avoid and carefully connect the waterproof layer.

That's generally how you can describe it without going into details about which wall and window you use.

Some are mounted from the outside with an external flange and foam the gap.
My passive house windows are mounted with karmskruv

you cannot mount windows with karmskruv. that means you're mounting directly into the stud which you are not allowed to do

 

[Rabbithole]

you can't mount windows with frame screws. that means you're mounting directly into the stud which you're not allowed to do

"Allowed" depends on how the wall is constructed. It works perfectly fine with frame screws.

 

[Rabbithole]

The dew point comes far into the wall, so the waterproofing is not something to be sloppy with.

An FTX adjusted with a bit of low pressure.

Preferably slab-on-grade to handle the building height.

Insulation 200 mm PIR, equivalent to about 350 mm rock wool. Sliding tracks on log wall?

Expensive windows with a U-value below 1 with sun protection on the south side.

Window placement on the inside of the wall.

LLVP

Wood-burning stove with a water coil for hot water heating.

Solar panels on the roof and on the south-facing wall with battery storage. Can you get some electricity with a low sun height in winter and no snow problems?

Might be time to run the house in an energy simulation program now

Sounds like a reasonable recipe. Would aim for windows under U=0.8 for the entire construction, so you get no cold drafts.

PIR boards and windows are advantageously ordered from Poland/Czech Republic. Lower price and better selection.