ᐅ Wall construction on lime-cement plaster (healthy indoor environment / mineral-based)

Hi.

I don’t want to overuse the terms healthy living or ecological. Our wall construction should ideally meet these criteria and withstand the wear and tear from two small children.

The planned wall build-up is as follows:

• Primer
• Full-surface silicate filler
• Paint fleece
• Silicate dispersion paint

Originally, I was considering a mineral filler plus a filler fleece and silicate paint. I also like the build-up with paint fleece because it seems more durable. Walls do take a lot of abuse with children around. For the paint, I would choose a washability class 1 so that dirty “hands” can be wiped off easily.

However, with this build-up including the paint fleece, the silicate dispersion paint won’t naturally silicify, right? What do you think about this build-up?

Wall structure is overrated. I have three children and don’t see any real differences (drywall, gypsum plaster, lime-cement plaster). Only in price.

You can basically skip the silicate filler and use gypsum plaster instead. Since you’re applying painting fleece anyway, you don’t need silicate as a bonding layer, and gypsum plaster will provide a smoother finish.

Thank you. Actually, it would be easier to embed a reinforcing mesh directly into the silicate filler and then paint with silicate paint right away... Why is this done less often? This would eliminate the step of priming and attaching the painter’s fleece.

For painter’s fleece, I would prefer a glass mesh. Cellulose fleece might be more sensitive to moisture and mold, or am I mistaken?

I assume it’s because applying silicate paint is simply more complex (highly alkaline, primer with potassium water glass, which is corrosive), requires mixing, constant respiratory protection, and so on.

Well, cellulose is vapor-permeable. Fiberglass is not. Fiberglass is even more durable.

@Tolentino from what I have read, the fiberglass fleece is also vapor permeable. So if I pick from the shelf of the yellow manufacturer with the three black letters, both an EVO and a 100 Pro are vapor permeable. The fiberglass fleece is more expensive. The latter is even Ökotex 100 certified and has the French A+ label. The EVO does not have this.