How to get some airflow in my shop?

[jeremywrags]

Hi All,

I have a basic 30x40 pole barn with 14' sidewalks and a 12x20 overhead door. The shop is insulated with 2" foam on the walls and 4" foam on the ceiling. Overall I love my shop but yesterday I was installing tile in the shop bathroom and I realized there is ZERO air moving around in the shop. It gets hot even when not that hot outside. The shop is sealed tight thanks to the foam and I think I need some sort of exhaust or vet fan to let air move when I have the door open. Also in the winter I have a propane heater and I assume that will also be a problem with not having a place for the Co2 to escape.

Anyone have a suggestion on what best to do? Ceiling whirly bird, gable exhaust fan, something else?

 

[Ben1967]

I would put an exhaust fan in, it will get you some air in or out. Heres a link to the one I like- https://www.jdmfg.com/industrial/exhaust-fans/es-shutter-fan

 

[jeremywrags]

I would put an exhaust fan in, it will get you some air in or out. Heres a link to the one I like- https://www.jdmfg.com/industrial/exhaust-fans/es-shutter-fan

That is exactly what I was thinking. The thing that I am not sure about is how to seal it up so that water does not get in?

 

[cshades]

I have a door in each end of my 30 x 60. The air flows so well some times I have to close a door on one end if I don't want the dust flying.

 

[CJ7VFR]

If you install it correctly, the louvers will close when the fan it not running, and this will keep water out if it is raining.

I had something similar to this in the attic of my old townhouse. I installed it in one of the gable vents and it worked great. I had it hooked up to a temperature sensor that would allow it to come on automatically at a preset temperature. It also had a sort of by-pass to it that would allow you to turn it on manually if you wanted to run it outside of the temperature range it was set for.

Jim

 

[jeremywrags]

If you install it correctly, the louvers will close when the fan it not running, and this will keep water out if it is raining.

I had something similar to this in the attic of my old townhouse. I installed it in one of the gable vents and it worked great. I had it hooked up to a temperature sensor that would allow it to come on automatically at a preset temperature. It also had a sort of by-pass to it that would allow you to turn it on manually if you wanted to run it outside of the temperature range it was set for.

Jim

Hi Jim, thanks for the input. My main concern is around the water getting in around the edges. I am not sure how to flash it so that it seals the perimeter

 

[ard]

You plan on using a propane heater that is NOT exhausted to the exterior?

Have your wife make sure your life insurance policy is paid up....

 

[jeremywrags]

You plan on using a propane heater that is NOT exhausted to the exterior?

Have your wife make sure your life insurance policy is paid up....

Based on my post does it should like my plan is to use it without venting... Thanks for the constructive comment.

 

[rburke65]

Well yes, you're going to need to vent the heater.

 

[Morrison]

Get a Big *** Fan

 

[No Noise Dude]

If you have a Graingers nearby, get to the Will Call desk and ask for a catalog. In the back of the catalog, there are sizing guidelines as to how many air changes per minute are required for a particular space. In the Air Changes Recommended for Various Areas, garages require 5 to 10 minutes per change. To determine the required fan capacity, calculate the volume of the area to be ventilated in cubic feet and divide by the minutes of change. The resultant will be cubic feet per minute, corresponding to the fan ratings. One or more fans may be used to obtain desired cubic feet per minute.

 

[CJ7VFR]

Hi Jim, thanks for the input. My main concern is around the water getting in around the edges. I am not sure how to flash it so that it seals the perimeter

They normally get installed just like any regular static gable vent or window, and flashed and trimmed the same way to move the water round the outside of it.

Do you have existing static gable vents in your garage? If so, you could always buy a regular gable vent fan that installs onto the inside of the gable vent.

Something like this. This one is the one I had in my old townhouse attic to move the air and vent the heat in the attic.

This one might not be big enough, as it is good for up to 2500 sq ft, but I am sure there are larger units out there if you look around.

Jim

 

[Farrier]

Get a Big *** Fan

These are badass. Costco has installed them on some of their buildings.