Hello
I have a small problem with damp walls on both sides next to the patio doors and the front door. The dampness rises along the walls between 25 - 40 cm (10 - 16 inches).
We already had this issue in spring. I spoke with our builder, and he said it was caused by the silicone joints. These seal the exterior transition between the windows and the tiles, so that rainwater runs down the windows and flows over the silicone joint onto the tiles.
I inspected it at that time and the joint had obvious cracks because the building settled since the house was built in 2008. I then renewed the seals and had no problems over summer.
After the heavy rain in recent days, however, the walls are damp again. I checked the new silicone joints again and could not find any cracks or holes. Just to be sure, I applied silicone over the joints again.
Now my questions:
There is foam insulation between the window frame and the brick wall on the exterior. Could it be that this absorbs water and lets it run inside between the bricks and the interior wall?
Where else could the water be coming from?
How can I best get the water out again? I think it is running under the screed. By the way, we have underfloor heating – but there is no pressure drop.
I would appreciate any advice. Thank you very much for your help.
Regards
Christian Hölscher
I have a small problem with damp walls on both sides next to the patio doors and the front door. The dampness rises along the walls between 25 - 40 cm (10 - 16 inches).
We already had this issue in spring. I spoke with our builder, and he said it was caused by the silicone joints. These seal the exterior transition between the windows and the tiles, so that rainwater runs down the windows and flows over the silicone joint onto the tiles.
I inspected it at that time and the joint had obvious cracks because the building settled since the house was built in 2008. I then renewed the seals and had no problems over summer.
After the heavy rain in recent days, however, the walls are damp again. I checked the new silicone joints again and could not find any cracks or holes. Just to be sure, I applied silicone over the joints again.
Now my questions:
There is foam insulation between the window frame and the brick wall on the exterior. Could it be that this absorbs water and lets it run inside between the bricks and the interior wall?
Where else could the water be coming from?
How can I best get the water out again? I think it is running under the screed. By the way, we have underfloor heating – but there is no pressure drop.
I would appreciate any advice. Thank you very much for your help.
Regards
Christian Hölscher
The window manufacturer could not find any defects, and a construction worker also couldn’t figure out why the walls are getting damp.
Why does the problem occur only at these two windows? All the other windows are fine. If the issue were caused by incorrect installation, then it would have appeared at all windows.
Regards
Why does the problem occur only at these two windows? All the other windows are fine. If the issue were caused by incorrect installation, then it would have appeared at all windows.
Regards
Hi,
well, if the issue occurs only with the patio doors, then you probably didn’t execute the base properly.
Did you plan and build the house entirely yourselves? Didn’t involve any tradespeople? Or a construction supervisor to check your work?
What do you mean by aluminum sealing on the outside?
Regards
well, if the issue occurs only with the patio doors, then you probably didn’t execute the base properly.
Did you plan and build the house entirely yourselves? Didn’t involve any tradespeople? Or a construction supervisor to check your work?
What do you mean by aluminum sealing on the outside?
Regards
Hi Curb,
Yes, we built the house ourselves. The windows were installed by a company. The aluminum adhesive tape used by the installers to seal the windows was also referred to as aluminum sealing tape by the site manager. I applied the adhesive tape myself. So far, it has been fine.
Could it be due to the window sills?
I can’t imagine that the window frame is leaking anywhere.
Regards
Yes, we built the house ourselves. The windows were installed by a company. The aluminum adhesive tape used by the installers to seal the windows was also referred to as aluminum sealing tape by the site manager. I applied the adhesive tape myself. So far, it has been fine.
Could it be due to the window sills?
I can’t imagine that the window frame is leaking anywhere.
Regards
F
FrankSchiller20 Feb 2014 16:09I had exactly the same problem some time ago.
After our walls stopped drying out, we consulted a professional for advice. Our walls were measured, and after analysis, we decided to use Eckdry.
After only a short time, the walls became drier, and we have been using it ever since and are very satisfied.
I can highly recommend Eckdry to anyone dealing with damp walls!
After our walls stopped drying out, we consulted a professional for advice. Our walls were measured, and after analysis, we decided to use Eckdry.
After only a short time, the walls became drier, and we have been using it ever since and are very satisfied.
I can highly recommend Eckdry to anyone dealing with damp walls!
F
FrankSchiller20 Feb 2014 16:11Of course, I meant ECODRY!
Hi
As far as I know, window reveals must be vapor-proof on the inside and vapor-permeable on the outside. No moisture from inside should be able to enter the cavity where it could condense. However, any moisture that does get in should be able to escape to the outside. The external sealing is usually a compression tape, covered with profiles to protect against driving rain. Silicone and similar materials are generally counterproductive in this application.
As far as I know, window reveals must be vapor-proof on the inside and vapor-permeable on the outside. No moisture from inside should be able to enter the cavity where it could condense. However, any moisture that does get in should be able to escape to the outside. The external sealing is usually a compression tape, covered with profiles to protect against driving rain. Silicone and similar materials are generally counterproductive in this application.
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