ᐅ After replacing the windows, the surface of my KALLAX unit is swelling – what can I do?
Created on: 9 Apr 2020 19:23
T
tauvin
Hello everyone,
I recently had new windows installed because the old ones were very old and no longer properly sealed. Since the window replacement, I have encountered an annoying problem: the wooden surface of my KALLAX shelf is noticeably swelling in the areas directly facing the new window. It looks as though the surface has absorbed moisture and feels swollen and wavy.
The shelf is placed directly against the wall below the window. I assume that the new windows and their seals may have caused condensation or changed the humidity levels, which the wood is absorbing.
Has anyone experienced something similar? What other causes could be possible, and most importantly: what can I do to stop the swelling or help the material return to normal?
I would appreciate any tips or suggestions!
I recently had new windows installed because the old ones were very old and no longer properly sealed. Since the window replacement, I have encountered an annoying problem: the wooden surface of my KALLAX shelf is noticeably swelling in the areas directly facing the new window. It looks as though the surface has absorbed moisture and feels swollen and wavy.
The shelf is placed directly against the wall below the window. I assume that the new windows and their seals may have caused condensation or changed the humidity levels, which the wood is absorbing.
Has anyone experienced something similar? What other causes could be possible, and most importantly: what can I do to stop the swelling or help the material return to normal?
I would appreciate any tips or suggestions!
roryvin schrieb:
New windows can cause changes in airflow and lead to condensationIt’s interesting because people often forget that such construction measures can completely change the indoor climate. You buy modern windows expecting an immediate improvement in air quality, but in reality, the altered air circulation sometimes creates problems. The window replacement may have actually triggered the issue because there was sufficient air exchange before.
Also: Were ventilation concepts considered with the new windows? Central mechanical ventilation systems or simple tilt openings can make a big difference.
P
praWarre699 Apr 2020 22:05Oh no, swollen wood – that sounds really annoying! :-)
I would definitely recommend ventilating more frequently, especially now when you might be using more heating, as this also affects the humidity levels. Try to open the window fully as often as possible to allow enough fresh air in so the KALLAX wood can dry out again. A small dehumidifier could also help if you want to manage the problem in the long term.
Maybe just a bit of patience, wood needs time to adjust to new conditions. 🙂
I would definitely recommend ventilating more frequently, especially now when you might be using more heating, as this also affects the humidity levels. Try to open the window fully as often as possible to allow enough fresh air in so the KALLAX wood can dry out again. A small dehumidifier could also help if you want to manage the problem in the long term.
Maybe just a bit of patience, wood needs time to adjust to new conditions. 🙂
Thank you for your previous responses.
To add some information: The window itself seems to be airtight, as the installer checked it thoroughly. Water is definitely not dripping or running onto the shelf. The wall behind the shelf is also dry. Therefore, I suspect that the issue is really due to the changed humidity levels.
I already ventilate several times a day with quick bursts, but a dehumidifier could still be a good idea.
Also, I wonder if there is a way to repair the swollen surface without having to replace the entire shelf.
Are there any special sealants or coatings that can be applied to such swollen particleboard surfaces once they have dried out reasonably well?
To add some information: The window itself seems to be airtight, as the installer checked it thoroughly. Water is definitely not dripping or running onto the shelf. The wall behind the shelf is also dry. Therefore, I suspect that the issue is really due to the changed humidity levels.
I already ventilate several times a day with quick bursts, but a dehumidifier could still be a good idea.
Also, I wonder if there is a way to repair the swollen surface without having to replace the entire shelf.
Are there any special sealants or coatings that can be applied to such swollen particleboard surfaces once they have dried out reasonably well?
tauvin schrieb:
Are there any special sealants or coatings that can be applied to swollen chipboard surfaces once they have dried out somewhat?Yes, special waterproof wood varnishes or acrylic coatings are suitable for this, as they create a protective barrier. Polyurethane (PU) varnishes are especially popular for furniture because they are durable and water-repellent.
It is important that the surface is completely dry and smoothly sanded before applying the varnish to ensure good adhesion.
Alternatively, you can use water-based sealants that are vapor-permeable if the wood still needs to absorb some moisture. However, for swelling issues, a water-repellent protective coating is generally recommended.
G
GUMARTINA10 Apr 2020 08:23The wood must be completely dry. Then, sand it with fine-grit sandpaper and apply a clear varnish such as polyurethane (PU) lacquer.
Important: Apply several thin layers to prevent cracking.
Important: Apply several thin layers to prevent cracking.
tauvin schrieb:
I wonder if I can somehow repair the swollen surface without replacing the entire shelfIf the material is only slightly swollen, sanding and sealing often helps. However, if it is severely damaged or layers are peeling off, replacement is the only effective solution.
Similar topics