ᐅ KALLAX and Extreme Heat – Experiences with Fading?

Hello everyone, I recently have a KALLAX shelf from IKEA in my living room, and since there have been some extreme heatwaves here in Germany over the past weeks, I’m wondering how resistant the surface of this shelf really is to UV radiation and prolonged heat exposure. Specifically, I’m concerned about possible fading or discoloration of the white and colored surfaces after extended sunlight exposure, which can occur in summer, for example, through large windows. Has anyone experienced whether the material fades quickly, how severe the changes might be, and if there is any way to prevent or treat this? I would appreciate your feedback and experiences!

Basically, the KALLAX shelving unit is made from particleboard with a melamine resin coating. These surfaces are quite resistant to scratches and moisture but are sensitive to UV radiation and extreme temperature changes.

With prolonged direct sunlight exposure, the pigments in the coating can actually fade, especially on white or colored models. This happens due to the breakdown of pigments caused by UV light, along with the thermal stress affecting the binding resins.

A common issue is when the shelving unit is placed directly by a window where the sun shines intensely, which significantly increases the likelihood of fading.

I’d like to know: Is the shelving unit in direct sunlight all day long or only part of the day? And how high are the room temperatures really? Such details help to better assess the situation.

Additionally, applying UV-protective films to the window or occasionally covering the shelving unit can help extend the lifespan of the color. Have you considered these options?

Dilen schrieb:
Is the shelf exposed to direct sunlight all day or only part of the time? And how high do the indoor temperatures actually get?

Good questions! The shelf is indeed located near a large window facing west. In the afternoon, it receives direct sunlight for about 3-4 hours. On hot days, the room temperature can rise to around 28-30°C (82-86°F), while the humidity is usually low.

So far, I haven’t installed any UV protection on the window, but I’m considering it. I’m just surprised at how quickly such a piece of furniture can visibly fade or even change color—is it common for the KALLAX to show these changes within such a short time, or are we usually talking about several seasons?

Hey klofi, thanks for your detailed input! 3-4 hours of direct sunlight and 28-30°C (82-86°F) is indeed quite a significant stress for a shelf used indoors.

Fading on furniture with melamine resin coating usually occurs over longer periods, typically after several months to years. Fortunately, it doesn’t fade overnight – so your stylish furniture shouldn’t cause any immediate concern 🙂

What I recommend is trying to protect the shelf with a thin curtain or a portable room divider when the sun shines in during the afternoon. This also helps reduce heat buildup.

klofi schrieb:
I’m just surprised at how quickly a piece of furniture can visibly fade or even discolor

With proper protection, the shelf really lasts quite a long time without major changes. The main issue is intense sunlight through windows without UV-protective films.

I can confirm this from my own experience. I have a bright KALLAX shelf placed near a south-facing window that gets 2–3 hours of sunlight daily. Over the years, the white wood finish has actually yellowed somewhat and the top surfaces have become lighter, which I clearly attribute to UV exposure.

Interestingly, the fading wasn’t uniform but more pronounced where the sunlight hit directly. So this is not just general “aging” but an actual localized fading.

A tip: If possible, change the location regularly or at least use a UV protective film—this greatly reduces thermal and UV exposure.

How long have you had the shelf? Maybe something can be done with little effort before the discoloration becomes very noticeable.

benon schrieb:
How long have you had the shelf? Maybe something can be done easily before the discoloration becomes very noticeable.

Thanks for your input! The shelf has been with me for about 8 months. So far, I haven’t noticed any visible discoloration, but I want to prevent it early on.

I have been wondering if there are special furniture care products that offer UV protection or at least make the material less susceptible—if anyone has experience with this, that would be great. Or is that generally ineffective for melamine surfaces?

Also, I’m considering whether it makes sense to rotate the shelf seasonally or remove it from direct sunlight, or if that would cause more hassle than benefit. Given the stability and weight, that might be quite cumbersome.