So how do you know when the good advice ends and the sales pitch starts? The only way you will be able to know the answer to this question is to educate yourself about crawl spaces, which is not as easy as it sounds. more »
It's funny because I never hear that question. There are more objections to closing the vents than any other subject. I think the question that is really being asked is; is it worth it? My answer would be; more »