Hello

We have a Hultfredshus from 1967 where all the walls are made of fiberplank. Now we want to add an extra floor and therefore wonder if anyone knows how much a fiberplank wall can support.
The dimensions of the fiberplanks are 95x300.
A comparison with a standard stud wall would be sufficient.

Best regards, Niklas
 
Hello!

We also have a Hultfred house from 1967 with exterior walls that are 95 thick.

We have an upper floor with a WC and 2 bedrooms, so it should hold.

If there's interest, I can provide some pictures of how they have resolved it out in the attic above the exterior wall.
 
Just a question: How do you perceive the insulation capability of fiberplank? (just curious)
 
Hello

We would like to have a picture of how they have solved it out in the attic above the outer wall if that's okay.

Do you know if your upper floor is original or an extension added later?

As for the insulation, we don't think it's very good. We replaced part of the facade a while ago in connection with a window replacement and added 45 mm insulation on the inside and outside. (It should have been 2x45 on the outside plus 45 on the inside, but those who did the job misunderstood what we wanted.) Now the additionally insulated wall feels warmer than the other walls when you touch it. Besides the additional insulation, that wall differs from the others by being clad with wood paneling instead of brick. How much that affects, I don't know.
 
Our upstairs is original.

OK, then we have the same understanding of our walls =), we also insulated with 45mm but only on the inside because we don't want to rebrick the facade.

Hope you can see how they've solved it in the picture, happy to answer any questions if you wonder about something.
 
  • Insulation in an attic with exposed wooden beams and fiberglass material spread across the floor.
Hello again

If I understand you correctly, you have a 1 1/2-story house where the lower floor is made of fiberplank. Is that correct? And if so, is it "only" fiberplank on the lower floor, or is it reinforced?

We have a split-level house with a lower floor in concrete and on top of that, a floor made of fiberplank. The plan is to add an additional floor (or rather a 1/2-floor). Preferably without having to reinforce the fiberplank floor.
 
You have understood it correctly, we have a 1 1/2 +basement. We "only" have fiberplank, even the upper floor is made of the same material.

The only reinforcement that exists is the one seen in the picture, the one lying between the floor beams and the roof truss.
 
Hi. Testing to revive this thread over 10 years later. How did it go? Did you add a second floor? We are now facing the same thoughts, but are considering building an entire floor. Hultsfred house from 61.

Regards/ Johan
 
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