Humidity in the shop?

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tom4018
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Humidity in the shop?

Postby tom4018 » Sun Dec 24, 2017 4:32 pm

We built a shop this year and in this nasty weather the humidity in it has bees 55-60%. I got a lot of tools that I would like to keep from rusting. Maybe I am being over concerned but would rather be cautious. It is a pole construction building with fiberglass insulation in the roof and the double bubble on the walls. I don't plan on heating it full time but am planning on adding more insulation to the walls for sure. At that point I may try to keep it above freezing.

Would running a dehumidifier help? The articles I read on them say the efficiency of the standard really drop off below 50 degrees. This one says it works down to 34 degrees :
https://www.amazon.com/EcoSeb-DD122EA-C ... op?ie=UTF8

It is a 30 x 40 with 12 foot ceilings. Concrete has vapor barrier under it.
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ALACOWMAN
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Re: Humidity in the shop?

Postby ALACOWMAN » Sun Dec 24, 2017 5:23 pm

Be prepared to empty it atleast once a day..be surprised at the amount of moisture you'll get..
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kenny thomas
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Re: Humidity in the shop?

Postby kenny thomas » Sun Dec 24, 2017 5:36 pm

ALACOWMAN wrote:Be prepared to empty it atleast once a day..be surprised at the amount of moisture you'll get..

Easiest way is to drain it to the outside.
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True Grit Farms
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Re: Humidity in the shop?

Postby True Grit Farms » Sun Dec 24, 2017 7:34 pm

Build a tool room inside the barn with a loft.
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Re: Humidity in the shop?

Postby ddd75 » Sat Dec 30, 2017 7:40 am

that fiberglass is probably nothing but water now.
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tom4018
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Re: Humidity in the shop?

Postby tom4018 » Sat Dec 30, 2017 8:08 am

ddd75 wrote:that fiberglass is probably nothing but water now.


Why do you say that? You see that insulation in a lot of steel buildings.
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Craig Miller
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Re: Humidity in the shop?

Postby Craig Miller » Sat Dec 30, 2017 8:53 am

I've never thought about humidity in a shop here. It's always high. Up to 100 percent. Most everybody's tool shops are open to outside air in some way. Could be why we've all got rusty tools.
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Caustic Burno
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Re: Humidity in the shop?

Postby Caustic Burno » Sat Dec 30, 2017 9:34 am

tom4018 wrote:We built a shop this year and in this nasty weather the humidity in it has bees 55-60%. I got a lot of tools that I would like to keep from rusting. Maybe I am being over concerned but would rather be cautious. It is a pole construction building with fiberglass insulation in the roof and the double bubble on the walls. I don't plan on heating it full time but am planning on adding more insulation to the walls for sure. At that point I may try to keep it above freezing.

Would running a dehumidifier help? The articles I read on them say the efficiency of the standard really drop off below 50 degrees. This one says it works down to 34 degrees :
https://www.amazon.com/EcoSeb-DD122EA-C ... op?ie=UTF8

It is a 30 x 40 with 12 foot ceilings. Concrete has vapor barrier under it.


That would he low humidity for the house much less the shop.
Average humidity is 90% plus here I don’t have a problem with rust it’s mud dabers. If it has a hole or crack they have it plugged up.
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Re: Humidity in the shop?

Postby ddd75 » Sat Dec 30, 2017 12:25 pm

tom4018 wrote:
ddd75 wrote:that fiberglass is probably nothing but water now.


Why do you say that? You see that insulation in a lot of steel buildings.



I don't see if very often and when you pull it its usually moldy and damp.

If you want to do it right i'd spray foam the roof underside and use polyiso on the sides.
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