Dehumidifies?

[Jarvis]

What humidity should a garage be when there are cars stored in it?

 

[Jarvis]

We got mold starting and bought a dehumidifier and it's was 83% and now we keep it 55-60% but had someone tell me it needs to be at 38%. That seems low!

 

[usa#1]

If it's a wood framed structure measure the moisture content of the wood studs and joists. You should be able to find some data on acceptable moisture levels for wood on the internet.

 

[abstamaria]

l understand rust stops forming at 60%. Below 40% and you might get wood shrinkage and cracks in leather. Piano manufacturers recommend 55%, so that's a good number.

Andy

 

[Jarvis]

Thanks

 

[LS6 Tommy]

We got mold starting and bought a dehumidifier and it's was 83% and now we keep it 55-60% but had someone tell me it needs to be at 38%. That seems low!

38% is a pipe dream with any store bought dehumidifier, considering the average desert has an RH of 45-50%...

Tommy

 

[Jarvis]

Gotcha. 38 seemed to low

 

[Jarvis]

Dehumidifiers is a must! Keeps barn cooler and no mold. I have 72 quart and will fill bucket in 24 hours.

 

[Jeepster04]

Keep mine on 70% and all seems well.

 

[Jarvis]

Keep mine on 65%

 

[Stuart in MN]

38% is a pipe dream with any store bought dehumidifier, considering the average desert has an RH of 45-50%...

Tommy

That sounds pretty high...I just checked and the relative humidity in Phoenix right now is 19%. In Qatar it's about the same.

 

[BearsFan315]

just went through this, in the winter it was staying around 40-45%, cold dry winter. then summer hit and was staying around 70-75%. surface rust was popping up on clean metal, and things i was working on. Have a PTAC and keep it on 74F

got a dehumidifier and set it up for 50% left the PTAC as it was 74F after 3 days the humidity stays around 45-55%. and it feels a lot cooler granted the temp is still 74F

I live close to the coast of the Atlantic so moisture is abundant !!

 

[LS6 Tommy]

That sounds pretty high...I just checked and the relative humidity in Phoenix right now is 19%. In Qatar it's about the same.

My numbers may be WAY off. I used numbers from memory that were based on what we experienced on an average of what we see in the US...

Tommy

 

[6768rogues]

I keep my storage building at 50% or lower humidity and have no rust or mold issues.