Hello,

We will soon have access to our new house with an unfinished upper floor. It's going to be a very fun project to complete, BUT... I've never done this before and would need some expert tips/advice on how to go about it. :blushing:

The upper floor is insulated, and it is prepared for radiators and a bathroom (see picture for current status).
My question is simply: In what order (in broad strokes) should I approach this project to do it in the best way?

Grateful for your help!!! d^_^b
 
  • Unfinished attic space prepared for renovation with insulation and framing, featuring two windows and scattered construction materials on the floor.
  • Unfinished attic with insulation and wooden beams, three windows, construction materials on the floor, prepared for radiators and bathroom installation.
Which house company did you buy the house from?
 
The house is a Modulenthus.
I am also attaching the floor plan for how we have envisioned the upper floor.
 
  • Floor plan of the upstairs in a Modulenthus house, featuring three bedrooms, a bathroom, a walk-in closet, and a living area.
From the pictures, it looks like the floorboards are already in place, so the next step should probably be measuring and framing the interior walls.
Will all the rooms be open to the ridge? If "No," then you'll also need to frame a ceiling.
Then it would be time for electrical wiring and plumbing.
After that, it's time to panel the interior walls. I recommend using OSB and plasterboard to avoid having to use plugs when you want to hang things on the wall.
I would also insulate the interior walls with appropriate sound insulation.

Good luck!
 
Yes, chipboard is already on the floor, and we will not have an open ceiling all the way up to the ridge (everywhere)....so we need to put up ceiling joists. OSB + drywall will be used on the walls. How about the ceiling? Do you use the same here??? When and how do you handle ventilation?
 
Do you also install OSB board + drywall in the ceiling (before adding ceiling tiles)? If so, is it a different type of drywall (dimension, etc.) or the same as on the walls?
 
Where there is a wall (gable and against knee walls) it appears to be just standing studs with insulation in between and plastic on the outside.
Before you proceed with OSB (or plywood or tongue and groove boards) and gypsum: Attach horizontal 45x45s with 60 cm spacing on the standing studs (like a grid pattern). (30 cm spacing if you plan to have tiles on the wall) Place insulation between these. This way, you not only get a little extra insulation (which is placed in a different direction = more efficient) but also a layer where you can run electrical wiring and that allows you to nail and screw into the walls without being afraid of making holes in the plastic.
 
Hi!

Just like you, I have been a Modulenthus owner for about 1.5 years now. Unfinished upstairs similar to yours.

Regarding ventilation, you should have intake vents (Fresh) in all rooms except the bathroom (they should already be installed, but I see you only have blind "panels" above the windows - mention this to Modulenthus, and you should get vents from them).
In the bathroom, you should have extraction down to the boiler (if you have exhaust heat recovery). There should already be a pipe in the floor somewhere with a "plug" on it that you should extend to the bathroom and have ceiling ventilation. Similar to the one you have on the ground floor.

Exciting, I'm going to start our project after the summer.
We will have open ceilings in all rooms except the bathroom.

Good luck!
Best regards,
Thomas
 
What Crebel wrote above is indeed a good idea, but it takes up some space. I will not be doing that. Sure, there will be holes in the plastic if you screw in a screw to hang something up, but I'm not worried about that. Most houses aren't that airtight.

More important is to consider if you should have double plastic/moisture barrier in the bathroom, for example. I'm still thinking about that. =)

/Thomas
 
Swappe, regarding double waterproofing: See a thread I created on 16/5 called Regla cc 30 för kakel, lt1 cobra included an AMA link that listed two solutions to this problem.

As for skipping the 45x45s, I also value the space, but I'm not bold enough to take such a shortcut from what I understand is good building practice. But maybe you're more knowledgeable about what's acceptable or not?
 
How fun Swappe to hear about someone in the same situation as us. We get to move in about 3 weeks now and like you we plan to start "project upper floor" after the summer.

Regarding the vents....should they have installed them from Modulenthus? I guess they did it for you then!?
I have "prepared for bathroom" so the exhaust down to the boiler from the future bathroom is in place, as you mentioned.

The house is still being built, so I will try to get them to address certain final things (if they should have been done). It's great to have these "insider tips"!!!

Interesting to hear that you have chosen to keep it open to the ridge......we are having big deliberations on how to handle this........

Anything else I should think about?
 
Went to check with the builders today, and ventilators (as Swappe mentioned) are lying on the upper floor waiting for us.

Anything else to keep in mind ahead of the final inspection? After that, it's kind of "up to oneself"......!
 
math_a: Final inspection is "only" a verification that essential functions are completed and satisfactorily executed + general review, of course.

If you find things that are wrong/damaged after this, just report this to Modulenthus (your building manager), and they will fix it fairly soon.
This does not apply if you caused the damages yourself!

Don't forget to have the ventilation adjusted by Nibe? after a few months. (this also applies after you have decorated the upper floor, though at your own cost)

I myself remember the fantastic feeling of getting the keys in hand and being completely alone in your own house!
Good luck! =)

Best regards
Thomas
 
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Thank you so much for the tips and good luck with the upstairs yourself.....it's sure to be exciting!!!!
 
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