ᐅ Plastering the Inside of a Garage: Should You Use Lime-Cement Plaster or Is Gypsum Plaster Sufficient?
Created on: 5 Jan 2026 15:51
J
joltHello everyone,
I would like to have the interior of my sand-lime brick garage plastered. The plasterer offered me a quote for gypsum plaster. According to him, moisture from a wet car in the garage is not a problem as long as "the car isn’t washed inside the garage, etc." He said that gypsum plaster also releases moisture again, similar to what happens in bathrooms.
So far, I was thinking of using a cement-lime plaster because of moisture and the risk of mold. The plasterer said that for an additional cost (he couldn’t specify the amount immediately), he could also apply cement-lime plaster. However, he would recommend using gypsum plaster for the ceiling in any case, as it can absorb and release moisture, preventing water from accumulating on the walls.
After plastering, I plan to paint, and I was considering silicone paint because it is quite resistant and easy to clean.
P.S. I have a smart home system that can automatically open the front garage door and a smaller door at the back slightly for ventilation based on indoor and outdoor humidity levels. Nevertheless, the base materials should of course be suitable on their own.
In your opinion, which plaster and paint would be the most appropriate?
I would like to have the interior of my sand-lime brick garage plastered. The plasterer offered me a quote for gypsum plaster. According to him, moisture from a wet car in the garage is not a problem as long as "the car isn’t washed inside the garage, etc." He said that gypsum plaster also releases moisture again, similar to what happens in bathrooms.
So far, I was thinking of using a cement-lime plaster because of moisture and the risk of mold. The plasterer said that for an additional cost (he couldn’t specify the amount immediately), he could also apply cement-lime plaster. However, he would recommend using gypsum plaster for the ceiling in any case, as it can absorb and release moisture, preventing water from accumulating on the walls.
After plastering, I plan to paint, and I was considering silicone paint because it is quite resistant and easy to clean.
P.S. I have a smart home system that can automatically open the front garage door and a smaller door at the back slightly for ventilation based on indoor and outdoor humidity levels. Nevertheless, the base materials should of course be suitable on their own.
In your opinion, which plaster and paint would be the most appropriate?
Cars don’t have particular architectural preferences or requirements. Interior plaster in garages sounds like a luxury to me.
If you want climate regulation, I would choose clay.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
jolt schrieb:
However, he would definitely recommend gypsum plaster for the ceiling so that it can absorb and release moisture,
If you want climate regulation, I would choose clay.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
G
Gerddieter5 Jan 2026 21:59I would use lime and maybe have a fleece embedded in the plaster at Q3 or Q4 finish.
NO — just kidding, we’re talking about a garage, right? I would save the money on plastering, smooth the walls (ours are concrete) with filler and paint them. That way, no water accumulates on the walls.
For moisture control, you have the top slat that can open automatically — I have that too, plus two 10cm (4 inches) core drill holes with mesh in a discreet spot…
GD
NO — just kidding, we’re talking about a garage, right? I would save the money on plastering, smooth the walls (ours are concrete) with filler and paint them. That way, no water accumulates on the walls.
For moisture control, you have the top slat that can open automatically — I have that too, plus two 10cm (4 inches) core drill holes with mesh in a discreet spot…
GD
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