I have a house from 1964 made of "blåbetong" with a plaster facade. The entrance to the house consists of a section of glass blocks and an exterior door. I am now going to replace it with a sturdier exterior door that weighs significantly more than the existing door and the glass blocks can't hold the frame in place, plus I don't like the appearance of the glass blocks either. I was thinking of cheating a little and not building up a wall to be plastered where the glass blocks are today, but instead framing a wooden wall and then having wood paneling.

1) Is there anything specific to consider when mixing stone and wood? Of course, the materials will move differently.
2) I understand that you often/always have both wind barrier and vapor barrier when building an exterior wall in wood. There is no specific vapor barrier in the walls today; it's plaster, "blåbetong", render. Should I still have an interior vapor barrier on the wooden wall I supplement with?
3) If I have approximately 25cm thick walls, how should I allocate this width when building the wall? Thinking about paneling, sheet material, studs, etc.
4) Since "blåbetong" is somewhat "tricky" and porous to attach things to, I’m thinking with the wall to be framed, I’ll start by placing a stud at the bottom and one at the top. Then "knock" in vertical studs tightened between the horizontal ones at the bottom/top. The horizontal ones at the bottom/top will be screwed into the "blåbetong" at several points and the vertical ones with angle brackets in the horizontal ones. Possibly, I was thinking that on the side where the door frame on the hinge side of the exterior door is to be attached to the framed wall, I have double studs where the innermost of these studs are wedged between the bottom/top as described above, and the outer one goes all the way against the "blåbetong" floor to ceiling and is screwed from the side into both the horizontal bottom/top stud as well as the nearest one laterally. I imagine it will be more stable that way.
5) Any smarter way to solve my query?

Made a messy sketch which might make it a bit easier to understand. The lines/"attachment points" I’ve drawn are not the right number or actual placement, just as an example.
 
  • Wooden front door with frosted glass panes next to a section of glass blocks in a 1964 house with a stucco facade.
  • Hand-drawn sketch of door frame with instructions, showing placement for stud framing, labeled "topp," "botten," and marked with "x" for frame screw locations.
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