PDA

View Full Version : To vent or not to vent


DavidInRI
July 22nd, 2008, 01:08 PM
Hello,

My sister wants me to add vents to her newer basement to stop a "moofy" smell. Kind of almost like wet cardboard smell, but there is no sign of mold.

This is a fairly new basement. They had a back porch that was screened in, then later was extended out away from the house and turned into a rec room. The original part of the porch does not have a basement, the extended portion does. So, it's almost a free-standing basement where no walls connect to other house walls. The ceiling of the new basement is the floor of the extended part of the addition.

Here are some other specs.

- Approximately 20(L) x 10(w) x 7(h).
- No windows, vents, or screen door. Just a standard outside entry door.
- Entry is one standard size door at ground level. One step up to door, then a 1/2 dozen steps down into the basement.
- Small standard roof peak over door.
- Walls and floor are cement (non-finished)
- 1 1/2' x 1 1/2' hole in floor in back corner with sump pump to handle water table.

There is no ventilation in this room except for what may seep through cracks and crevasses. Right now, in the summer it's cool and dry and the winter is not extremely cold. So the only issue here is the smell and it affects things that are stored there, like clothing.

I'm concerned that if I add vents I'll be letting the outside in (e.g. humidity, weather, bugs, etc.) adding more problems. I suppose I could try a dehumidifier, but this basement is seldom used and I'm concerned it won't be checked up on regularly.

What do you suggest? I can take some digital pics if needed.

Thanks,
David

JacobPM
July 22nd, 2008, 03:22 PM
Hi David.

Sounds like an interesting set up, I'd love to see pictures anyway.

If they're using the basement for storage you absolutely need to get some control on the air circulation.

Since there's a sump pump installed I'm going to assume that you have power in that particular basement.

Since it's only 200sq/ft I could see you using a SantaFe Compact unit to dehumidify the area. Typical smells in tight spaces such as this are caused by excess moisture that's trapped in a poorly circulated area.
Venting directly to the outside lets moist air into the space, which in the long run can cause even more of an issue. This is something people did back in the 1800s before dehumidifiers were invented to keep their food fresh in their root cellars...no need for you to follow in their footsteps;)

SantaFe Classic (http://www.pioneerbasement.com/santafe.php)
That link will give you a good idea of the quality of the Unit. Except the Compact Unit can run to 40 degrees F and 95 degrees F, uses 5.5amps, and can handle your area much more energy effective manner.

Hope to hear more about this space! Let me know if I can be of any further help!