Hello!
I have a Mockfjärdshus/Modulhus built in 1975. When we started planning to re-wallpaper one of the rooms the other day, we discovered a couple of damp spots on the wallpaper at the bottom near the baseboard. We started to wonder what it could be due to, as it couldn't have come from within (direct electric heating and a piece of furniture that stood in front). We took a walk around the house and discovered that the recessed electrical cabinet had gaps of 1-2 cm where the mortar had eroded away. The cabinet is directly opposite the area where the spot was discovered. It is a brick facade and a south wall. As we want to fix the problem and see how much damage it might have caused, we initially thought of sealing the gaps and then opening up the wall from the inside. Since I'm not a carpenter, but rather handy, I thought I would do all the work myself.
Now I'm wondering if there's anything specific I should keep in mind both when taking down the wall and when rebuilding it? If I understand correctly, the components of an exterior wall from inside the room are: room board (gypsum or similar), vapor barrier, insulation, and then wind barrier. After that, there's an air gap and the masonry. Additionally, there's framework here and there
I have also seen somewhere that there is insulation between the gypsum and the vapor barrier, which is more correct? Have I missed anything? I will also look at how the wall is constructed as I take it down, but it's always nice to have tips in advance so you know what to expect
I've never worked with exterior walls, but I have with interior walls, hence my questions. What we will do is check if the framework and insulation have been damaged and then replace them. Additionally, we might install a dehumidifier in the room to run for a few days to dry it out. A thought that occurred to me earlier is that since the electrical cabinet is recessed in the wall, there may be significantly worse insulation between it and the interior wall. This might create a thermal bridge and potentially lead to some condensation that runs down onto the sill and then through the board, causing discoloration on the wallpaper, combined with gaps where rain and snow could get in. However, you only see that once the wall starts to come down.
Thanks in advance,
Stefan
I have a Mockfjärdshus/Modulhus built in 1975. When we started planning to re-wallpaper one of the rooms the other day, we discovered a couple of damp spots on the wallpaper at the bottom near the baseboard. We started to wonder what it could be due to, as it couldn't have come from within (direct electric heating and a piece of furniture that stood in front). We took a walk around the house and discovered that the recessed electrical cabinet had gaps of 1-2 cm where the mortar had eroded away. The cabinet is directly opposite the area where the spot was discovered. It is a brick facade and a south wall. As we want to fix the problem and see how much damage it might have caused, we initially thought of sealing the gaps and then opening up the wall from the inside. Since I'm not a carpenter, but rather handy, I thought I would do all the work myself.
Now I'm wondering if there's anything specific I should keep in mind both when taking down the wall and when rebuilding it? If I understand correctly, the components of an exterior wall from inside the room are: room board (gypsum or similar), vapor barrier, insulation, and then wind barrier. After that, there's an air gap and the masonry. Additionally, there's framework here and there
I have also seen somewhere that there is insulation between the gypsum and the vapor barrier, which is more correct? Have I missed anything? I will also look at how the wall is constructed as I take it down, but it's always nice to have tips in advance so you know what to expect I've never worked with exterior walls, but I have with interior walls, hence my questions. What we will do is check if the framework and insulation have been damaged and then replace them. Additionally, we might install a dehumidifier in the room to run for a few days to dry it out. A thought that occurred to me earlier is that since the electrical cabinet is recessed in the wall, there may be significantly worse insulation between it and the interior wall. This might create a thermal bridge and potentially lead to some condensation that runs down onto the sill and then through the board, causing discoloration on the wallpaper, combined with gaps where rain and snow could get in. However, you only see that once the wall starts to come down.
Thanks in advance,
Stefan