Hi! I was wondering what you think about this? I don't feel like patching and sanding so I'm tearing off these boards and planning to put up regular 13mm gypsum boards instead. But I’m curious if these boards "I don’t know the name of" insulate better than gypsum? Anyone else done it the same way?
It appears to be some tretex board or similar. There is no noticeable difference in insulation capacity between tretex and plaster. Plaster is much nicer to work with.
Exactly it is extremely soft. I could have used renoveringsgips but they are significantly more expensive and I avoid having to deal with moldings around windows and doors since it will be exactly the same thickness as before on the walls
After reading a bit about tretex, it was unfortunately as I had imagined. Since it insulates very well, I will probably keep it in the rest of the house. But the question is how much better than gypsum does it insulate? If there isn't a huge difference, I'd rather tear it down to get straight walls everywhere.
If I understand it correctly, tretex insulates even better than foam and mineral wool? But the question is how much a 12.7mm tretex board compares to, for example, foam? I mean, is it equivalent to a 50mm foam board or a 30mm one if you understand what I mean?
According to your list, it is probably worse than both mineral wool and cell plastic?
After all, 13mm insulation is like nothing really. You want 300mm.
You can let the Tretex stay without problem with gypsum on top, but calculating the insulation value seems like a waste.
But tretexten has a lambda of 0.036 and cellplast 0.037? But if you compare it with gips, it has 0.25. The problem is that I have no idea about lambda values, so I'm not really sure how big of a difference it would make if I keep tretexten or remove it:/ as mentioned, I would preferably remove it.
Hello
A 13 mm board is so thin that I wouldn't worry, replacing a sealing strip in a window improves the insulation more than what you lose by switching Tretex to gypsum. I have thrown out loads of Tretex from my house. Broken into small pieces, it's good as kindling. But don't use too much, it burns intensely.
I have left the treetex on the walls in 2 rooms and used it as a complement to OSB/plyfa and screwed gypsum on top. I'm not overly impressed with treetex. Try driving a screw into the treetex and pulling it out with pliers or a pry bar and then do the same with OSB or plyfa, and you'll understand.
You should also keep in mind that it's barely possible to paint treetex.
If you don't put gypsum on top, wallpaper or microlite is required.
Additionally, in other rooms, I have torn down to the frame to get rid of the treetex. Use a mask when tearing it down; otherwise, you'll be blowing brown out of your nose for several days.
I can add that all windows will be replaced with 3-glass PVC in the spring. This means they will insulate much better than the old ones currently in place.
There are very different opinions you get, it seems like half of the people keep them and the other half tear them down and go with just plaster I will probably keep mine anyway because it provides better insulation.
The lambda value is a measure of a building material's specific thermal insulation capability and is most interesting when comparing different materials. Treetex boards were popular at a time when the most common exterior wall consisted of 3-inch wooden planks without additional insulation. With today's high insulation requirements, the effect of treetex boards is negligible. However, they can be left in place, covered with another material that is easier to surface treat.
The house is a split-level house from '64 with brick on the upper floor. The question is what kind of insulation might be between the plank and the brick, so to speak. Could guess they used sawdust at that time? It would be interesting to break up a couple of planks to see.
it is extremely soft. I could have used renoveringsgips but they are significantly more expensive and I avoid having to deal with moldings around windows and doors since it will be exactly the same thickness as before on the walls
