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Thread: Air Staleness Problem
09-08-2012, 02:02 PM #1
Air Staleness Problem
I have a problem at my office.
The building is a 14X24 metal building that I studded the walls and added insulation to the already metal building insulation. There is no attic. There is one door and one window with a ac unit in it. I am not there much so the ac does not run and the air is not being exchanged and slight mold is a problem.
Any advice will be appreciated.
09-14-2012, 08:23 PM #2Professional Member
- Join Date
- Sep 2012
09-14-2012, 08:44 PM #3
If you are having a mold issue due to high humidity, you can run the AC at a higher temp to pull the humidity out of the air. The lower you set the temp, the more the unit runs - The more the unit runs, the more moisture it will pull out of the air. An air exchange system like Jnxmn described above will bring in fresh air but requires additional equipment. You might also consider adding a UV light to help with the mold. Dehumidifiers are an option, but are not the most friendly on the electric bill. Here is a link that will give you an idea of the different options available.
09-15-2012, 08:24 AM #4
A small dehumidifier is a must in any green grass climate. Maintain <50%RH all the time to prevent mold from growing. Also an air change of fresh air is 4-5 hours is important to purge indoor pollutants and renew oxygen.
A unit like a small Ultra-Aire whole house ventilating maybe overkill, but the concept is right. It's the correct concept. Fresh filtered air when occupied, while maintaining <50%RH is critical.
Last edited by teddy bear; 09-15-2012 at 08:29 AM. Reason: added thoughtBear Rules: Keep our home <50% RH summer, controls mites/mold and very comfortable.
Provide 60-100 cfm of fresh air when occupied to purge indoor pollutants and keep window dry during cold weather. T-stat setup/setback +8 hrs. saves energy
Use +Merv 10 air filter. -Don't forget the "Golden Rule"
09-17-2012, 05:07 AM #5Regular Guest
- Join Date
- Nov 2007
- Central Ga.
In a situation like this I certainly would not recommend lowering the space temperature set point. If the unit will allow you to place the fan on continuous run mode I would try that first. Keep the air moving constantly but cycle the cooling (or heating) on as required. This is not as good as providing fresh air or adding a dehumidifier as suggested, but you can only do so much with a window shaker. You may have to break down and get a small dehumidifier, but, given the small space, I would certainly try the continuous fan mode first.