Have anyone performed a blower door test on a new home that has a multi bi-fold door installed on an exterior wall? (As in NanaWall, Lanai or Sierra Pacific bi-folds). Is there any performance difference if the doors are configured in-swing or out-swing? I'm concerned with air leakage for a tight envelope. Thanks.

NanaWall Bi-fold

Lanai Bi-fold

Sierra Pacific Bi-fold

Views: 1921

Attachments:

Reply to This

Replies to This Discussion

I assume they're referring to an ASTM E283 test, although I could be completely wrong... and as far as I know, that test uses a number of different test pressures and conditions, it's not a simple -50pa blower door test. BUT... if that .20CFM/ft2 is anywhere near what you'd get at -50, you'd be looking at about 20CFM50 contributed by the door unit. Just a WAG. I've never read the standard.

Really, window and door manufacturers should start testing their units in a standard blower door format, and publishing the results. As builders start to have to comply with standards like 3ACH50, they're going to want to know how the windows are going to do.

You are so right David. It would be nice if their testing is done under the same realistic conditions as their products are tested in real world... that maybe too much to ask. I'll keep waiting on a rater's test one of these days.

RSS

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Carrie Sturrock updated an event
Thumbnail

Making an Old Home More Livable: Where to Start and When to Ask for Help at Webinar

September 15, 2016 from 11am to 12pm
Making an Old Home More Livable: Where to Start and When to Ask for HelpUpgrading and weatherizing…See More
8 hours ago
Profile IconTommy Spain and Carl Johnson joined Home Energy Pros
8 hours ago
Kit Yturralde posted a blog post

Crawl Space Dehumidifiers Vs. Portable Dehumidifiers

If you start looking at the prices of crawl space dehumidifiers compared to portable dehumidifiers,…See More
13 hours ago
Profile IconBarbara Smith and Carl Johnson joined Tom White's group
Thumbnail

Weatherization

Share your concerns and successes as a weatherization professional, or information for this…See More
yesterday
Carl Johnson replied to Joel Greenberg's discussion The Truth About Windows? in the group Weatherization
"I think the appeal of replacing windows is largely on the aesthetics for most homeowners. Nobody…"
yesterday
Carl Johnson commented on Amber Vignieri's blog post Chicago Winter No Match for Retrofitted Logan Square Building
"Beautiful home! Did Josh replace the windows as well or no? Living in Chicago myself, I know about…"
yesterday
Carl Johnson commented on Diane Jackson's blog post Two Addison Projects Win Housing Innovation Awards
"These homes look great! Congrats!"
yesterday
Paul Scheckel posted a blog post

Renewable Rant: Traditional Energy!

Why, when I open up a newsletter or market evaluation report about “traditional energy” markets, do…See More
Monday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service