Hello everyone,
About 7 years ago, we had a garage built. Now the rear wall (exposed to the weather) is starting to develop some mold (see picture). It’s hard to see clearly since it just began, but can we ask the builder to fix this, or if not, what is the best way to prevent it from spreading?
Thank you,
Karl.
About 7 years ago, we had a garage built. Now the rear wall (exposed to the weather) is starting to develop some mold (see picture). It’s hard to see clearly since it just began, but can we ask the builder to fix this, or if not, what is the best way to prevent it from spreading?
Thank you,
Karl.
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motorradsilke6 Oct 2022 15:19Myrna_Loy schrieb:
Well, the question is what is stored in the garage. If it’s just the car, bicycles, and trash bins, then it’s sufficient to paint the walls with a coating that prevents mold growth. Garages, if not constructed and heated like living spaces, tend to be damp under certain weather conditions, so a mold-resistant paint is advisable. Mold starts growing at relative humidity above 45%. If the walls are not covered or blocked, then normally this isn’t a problem in the garage. You still might have mold growth on window seals, door seals, etc.
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Myrna_Loy6 Oct 2022 16:19An uninsulated, unheated garage will always have dew point issues. To prevent mold, you would need not only ventilation and heating but also regular dusting and wiping down seals to keep them dry. A car doesn't really mind this. If the concern is mainly aesthetics and spore issues, lime-based or silicate paint can help. Ventilation alone can even make the problem worse if warmer air enters the cooler garage.
Is the roof covering intact, and is the drainage system functioning properly?
Is the roof covering intact, and is the drainage system functioning properly?
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WilhelmRo6 Oct 2022 16:31We always keep a window slightly open – no problems for 2 years.
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motorradsilke6 Oct 2022 16:39Myrna_Loy schrieb:
An uninsulated, unheated garage will always have dew point issues. You would not only need to ventilate and heat to prevent mold, but also regularly wipe off dust and dry the seals. A car doesn’t really mind that. If it’s only about aesthetics and spore problems, lime or silicate paint can help. Ventilation alone can actually make the problem worse when warmer air enters the cooler garage.
No, that doesn’t happen if the garage is not sealed and therefore constantly ventilated.
We have a solid garage and several metal garages, all unheated and uninsulated. However, all have ventilation openings — the solid garage has holes in the back wall, and the metal garages have openings through the trapezoidal sheet roofs. And none of them have mold.
askforafriend6 Oct 2022 20:28halmi schrieb:
Keeping gates regularly in a ventilation position is simply a must in autumn/winter.But nobody does that, so they rot. Ask the OP 😉
Myrna_Loy schrieb:
An uninsulated, unheated garage will always have dew point issues. To prevent mold, you would not only need to ventilate and heat it but also wipe dust and dry the seals. A car doesn’t really mind that. I don’t get that. Then cars would get moldy too.
motorradsilke schrieb:
No, that doesn’t happen if the garage is basically not airtight, meaning it is continuously ventilated. Exactly
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