A clue or hint about what? I think the article addressed the issue quite clearly and well.
So do I. Have you read this thread?
To answer the question the attic fan exhausts air from the attic. The problem often is that the fan pulls more air than the vents allow in. This depressurizes the attic. If you have a manometer it would be able to check this out yourself. When the attic is depressurized and the attic vents can’t produce enough make up air then the air gets pulled from inside the house. This air can be warm and moist. This is what the article is all about.
One thing you don’t need is a brain, but I think you figured that out already. Some are former janitors (LOL) that couldn’t handle their jobs, some are former contractors/builders that failed for obvious reasons (sad but true). Some take a lot of online courses (1000 hours) and pay for the certification. There is no third party verification of your knowledge or skills to obtain the certification. It’s a sham. It’s an embarrassment to the profession.
I thought so too.
Green Building Advisor Martin Halladay used to be the editor of Energy Design Update. That expensive little newsletter keeps you abreast of leading programs, research, etc in the residential energy field.
The answer is provided in the MB on the problem with the article. The flow of air in cubic feet per minute is part of this equation. The sucking of air out of the attic buy means of an exhaust fan is part of the info mentioned in the comment. The approach to not solving the underlying problem is just not part of proper building science.
I am not sure if I am on the same page as James because the conditions I encounter are different then his area.
Your comment about the Attic Exhaust fan is correct but does not match the problem in the picture.
Kevin, you’re killing me.
Read this slowly
See that little word “had”.
That means if someone had suggested increased attic ventilation(and thankfully no one did) by use of a fan it would have only made things worse.:roll:
Reading is fundamental.
I can’t to hear his response/excuse.
Adding an exhaust vent or more ventilation in the attic will not cause this problem period. Even in other sections of this website they mention that balanced ventilation is not correct. IE 50% from soffit and 50% up top. I hope that someone from this area will answer you Michael but if you search the MB you will find someone was right.
I did not read anything in this article that said it would.
The article points out how adding more ventilation will not solve the problem, though, and that adding mechanical ventilation can actually make it worse. I agree on both counts.
Jim is absolutely right.
Learn to read and then you will get it. :roll:
Not according to the picture and article supporting it, which is what this whole discussion is about.
You just refuse to back down even when at least 3 others HIs tell you that you are wrong.
This is getting to be a pattern with you.
Your pattern has been well documented too!
I have the ability to admit when I am wrong.
Something you should should learn to do as well.
I guess you are a slow learner. :roll:
The reason I am where I am today is because I did learn quickly and take everything I have learned and analyze the s h i t out of it. There is one thing that I have noticed in the years of CE that every time someone thinks they are right someone either gets killed or suffers for the rest of there lives. BTW my passion is protecting people and has not changed for over 20 years.
Make that 4
Then please protect HIs by not posting wrong info or at least correcting it when someone points it out to you.
Jim, Linus.(and now Peter) and I all have explained it to you and still you persist.
Kevin,
the article is saying that, due to air leakage, the conditioned air from within the thermal boundary is escaping, in this case, into the attic or outside the thermal boundary.
Increasing ventilation, naturally or mechanically, will intensify the problem.
Also, moisture moves with air flow.
This is basic building science any CMI should know.