ᐅ Prefabricated House – Wall Construction

Hello everyone,

We are considering building a prefabricated house. At the moment, we are in the phase of "Who could it be."
First, I am comparing the wall constructions of different manufacturers.

Now, I would like to ask for advice. Can anyone recommend a good wall construction? Specifically, no polystyrene or plastic foil, good insulation, service layer, and high-quality materials.

Currently, we are leaning toward Kampa – Lignum Pure (the upgraded version compared to the standard).

Any help is appreciated.

Thank you.

So never install without an insulation layer, as otherwise you will perforate the vapor retarder with its holes. Most suppliers only offer this for an extra charge. But what are good materials?

Thank you. Yes, the installation layer is important and is rarely included as standard.

Good materials depend on the person assisting me. For example, for sheathing there are:
- Particleboard
- OSB board
- Wood-based panel
- Hardboard panel (at Kampa, whatever that is)

Everyone has their own opinion on what is best. I don’t have one yet and am happy to hear your views. Because for sellers, their material is always good or even the best.

The same goes for insulation:
- Wood fiber wool
- Mineral wool
- Wood chips
- Ecose (at Kampa, whatever that is)

...

So far, I just know I don’t want polystyrene or plastic. I have no opinion on the rest. And I’m not familiar with all manufacturers either.

Oh wow, those are some great terms already.

Let’s start:
Particle board
- OSB board
- Wood-based panel

Up to this point, it’s all basically the same stuff; “wood-based panel” is just a general term.
- Hardboard panel

That can also be considered a wood-based panel, but it’s probably more like gypsum fiber board from a specific manufacturer.

Insulation:
Wood fiber wool
- Mineral wool
- Wood chips
- Ecose

“Wood fiber wool” doesn’t really exist as such. The person probably means just wood fiber. Mineral wool and Ecose are basically the same; mineral wool is the general term, and Ecose is a manufacturer’s product. Wood chips—either a real eco-enthusiast’s choice or they mean blown-in insulation made of wood fibers.

Anyway, the price differences between these options are huge. Things get really interesting when you consider the rest of the assembly. Exterior plaster most likely, either as a ventilated façade or pasted onto polystyrene insulation?

That’s when the costs really start to add up.

So, everything above these lines is the classic comparison between apples and oranges...

Addendum: Regarding the installation layer: an installation layer is now standard practice in quality timber frame construction, included at no extra cost. It is also often used to reduce the living area afterward for an additional fee. This in turn increases the price per square meter. This addresses the topic of demand and typical price per square meter...

Thanks in advance. As you can see, I’m still at the very beginning.

But that’s exactly the problem: everyone comes up with different names just to confuse people. (And it works, as you can see )

I’ve rarely seen installation level as a standard so far (maybe I looked at the wrong manufacturers).

Are there any good links where you can find neutral information (to avoid comparing apples and oranges)? Something along the lines of: A good or high-quality wall should have these features and be constructed in this way.

Because at the moment, I haven’t gotten any wiser yet.