Hello,

I have a room of 16m2 that I repainted three weeks ago. I had removed all old wallpaper and adhesive residues. I used an ecological paint from Aura, which I know has been well-received.

The renovation of this room was largely due to the air quality. It used to smell like a mix of smoke/medicine. Now that type of smell is gone, but instead, it smells like a mix of wet masonite and cellulose/milk paint. The room consists of 3 masonite walls and one concrete wall.

I suspect that the new smell is coming from the masonite boards, as the paint may not have "set" on them yet. At the same time, old odors could still be lingering.

The floor is made of vinyl, and I plan to remove it, but I don't think the bad smell originates from there.

I'm considering changing the interior walls to drywall and adding wallpaper to achieve optimal air quality in the room. I would also replace the insulation, as I've been very satisfied with using cork to insulate the floor. However, I plan to wait another two weeks with more airing out before making a decision.

So my question is
how long does it take to replace walls for someone who finds laying hardwood floors a bit challenging, and how complicated is it? If it's very complex and difficult to ever complete because you're not a carpenter, I might reconsider...
 
Easy for those who know how, but it feels like overwork. Let it dry with some heat first, avoid drafts. If that doesn't help, apply a proper primer, preferably oil-based. That usually kills most things. It could also be the plastic mat that's smelling, not entirely uncommon.
 
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Drsnuggels
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Robert63 Robert63 said:
Easy for those who can, but it feels like overwork. Let it dry with a little heat first, avoid drafts. If that doesn't help, apply a proper primer, preferably oil-based. It usually kills most of it. It might also be the plastic mat that's smelling, which is not entirely unusual.
Do you mean that the smell might be because I primed the Masonite poorly?
 

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D Drsnuggels said:
Could it be that I poorly primed the Masonite, causing the smell?
Yes, it is possible. An effective way to remove old smells of nicotine and other things is to apply an oil-based primer. There might be water-based ones too; it's been a long time since I did it. I've been wondering if instead of cross-ventilation, you might help the drying process with heat instead? If you painted "wet-on-wet," drying can take time and will be even slower if it's cold. Then again, the "new" smell might come from the carpet.
 
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