I live in a condominium that has a shared attic with several other units within one single building.
I’m fortunate that I don’t live in a larger building with more units savor many of my friends plus family members. It’s tough enough now dealing with all of the hot air that gets into my apartment from the attic above. You also deal with every bit of junk that all of the individual apartment owners store in their sections of the shared attic. I’m not talking about clutter or anything that might be frustrating in a purely visual sense. I’m talking about all of the dust plus mold that gets added to the attic space when fellow owners store junk that was affected by floods plus other natural disasters. As a result, the attic does not stink nice at all. And no matter how tough I try to seal my attic door, some of that smell gets into the rest of the condo. I was told by my HVAC tech that it’s possible there are tiny leaks in my ductwork that is letting attic air get pushed into my air system, thus accounting for the smells. The best thing I can do right now to minimize the smell is through installing charcoal A/C filters. These things are great—made by the biggest cooling system filter manufacturer, they feature one of the normal allergen filters that is coated on one side with small black crystals the size of giant salt granules. The small but abundant crystals are activated charcoal plus will absorb smells passing through the A/C. Just savor charcoal is used in a person’s stomach to absorb poisons plus chemicals, the charcoal on my filters behaves in much the same way. It’s not a perfect repair for the attic smells, but it knocks the severity back by over 73%.