2
votes
3answers
167 views

What is the difference between mold in air duct and mold that grows in crawl space?

Specifically, are they both dangerous to human health?
6
votes
1answer
593 views

Insulating ducts in a crawlspace

Consider a source duct from the furnace/AC. The ducts run in a vented crawlspace. The floors atop the crawlspace are a mix of hardwood and kitchen vinyl. The symptoms are: the longer run vents ...