Hi everyone!

I've read threads, googled around, and talked to chatgpt until my eyes are bleeding, and everyone comes up with different solutions and suggestions. So before I go crazy, I thought I'd write here and see if someone can help me with some concrete answers!

In the attached image, I have drawn up how I plan to stud, insulate, and put OSB + plasterboard against the existing wall.

The ceiling is sloped, the floor is sloped, and there are no measurements similar to another. A real head-scratcher!

The yellow lines in the image are how I plan to frame 45x70. The pink lines indicate how I plan to lay the plasterboard over the OSB boards with staggered joints (I read that this was very important!).

The sill will be screwed to the floor and will follow the slope, and the top plate will be perfectly straight from the ceiling's lowest points (attached to the ceiling) at the ceiling joist and out towards the walls.

Does this look OK, or have I gone mad and made it too complicated?

I'm wondering about the gaps (marked with red arrows) above the top plate, how the heck do I fix such a cavity in the best way?

When the sill follows the floor's slope, how do I place a baseboard neatly? Is it just to place it along with the floor's slope, or will it look crazy?

Since the sill follows the slope, I will have to cut different lengths on all the standing studs. I guess I need to cut the ends against the sill at some kind of angle too? Do I need to think the same way with the OSB and plasterboard?

VERY grateful for answers! I'll probably come up with more things tonight as I twist and turn in thought agony...
 
  • Room wall with window, yellow lines for timber studs, pink lines for gypsum overlay, and red arrows on ceiling gaps. Text notes spacing and alignment.
Why do you want the ridge beam to be perfectly straight? Let it follow the roof and cut the OSB/gypsum to fit.
 
  • Like
Utsliten och utdömd
  • Laddar…
Is it a log house? I've heard that you shouldn't insulate more than 50mm on the inside. 70mm isn't that much more, of course. The timber extends more towards the outside and becomes colder/more humid. Is it a heated house?
 
Place a track at the bottom. One on the ceiling. Insert studs. Insulate. Cover with OSB and plasterboard.
 
P para said:
Why do you want the wall plate to be perfectly straight? Let it follow the roof and cut the OSB/gypsum to fit.
Good question... I just thought I wanted to build 'a straight wall' and not follow the slope. Maybe it was a dumb idea?
 
R Robin95 said:
Is it a log house? I've heard you shouldn't insulate more than 50mm on the inside. 70mm is, of course, not much more. The timber moves more toward the outside and becomes colder/damper. Is it a heated house?
Brick and plaster! Or, Plaster -> Brick -> Plaster, to be precise.

The house is heated sporadically during fall/spring/winter, I think it stays around 8-10C at the coldest. Then it stays steadily around 18-20 in the summer. A few radiators and a wood-burning stove and fireplace.
 
S salkin85 said:
Put a rail at the bottom. One in the ceiling. Insert studs. Insulate. Board with OSB and plaster.
So I should just follow the slope in both the ceiling and the floor then, quite simply?
 
niklaskrig niklaskrig said:
So I should just follow the slope in both the ceiling and floor then?
Yes exactly. Cut and saw the panels so they follow the floor and ceiling. Trim them a bit shorter and lift them up to the ceiling. The skirting board will hide any small gap between the drywall and the floor.
 
S salkin85 said:
Exactly. Cut and saw the boards so they follow the floor and ceiling. Cut them slightly shorter and lift them up towards the ceiling.
The baseboard hides any small gap between the plasterboard and the floor.
I guess I need to saw the studs at an angle so that they fit 100% flush against both the sole plate and the header?

See the picture for what I mean otherwise:
 
  • A vertical beam not flush against a slanted horizontal beam, illustrating incorrect angle cut.
niklaskrig niklaskrig said:
I assume I need to cut studs at an angle so that they are 100% flush against both the sill plate and top plate?
No.
 
Buy steel rail. Then it doesn't matter much how you cut the studs.
 
Click here to reply
Vi vill skicka notiser för ämnen du bevakar och händelser som berör dig.