Blower door
anonymoususer
| Posted in Energy Efficiency and Durability on
Shout out to all my lovely hers raters! Im curious: what is the highest air changes per hour (at 50pa) you have ever seen on a blower door test for single family residential? We live in a 1800s barn-like structure with Swiss cheese envelope and limited house wrap. Near VT-NH-MA intersection. Our report came back at 10.4ach50
We are working with building scientist to improve envelope but i just wondered if meanwhile we can celebrate the infamous accolade of scoring the highest any hers rater has ever seen…?
if mot, what’s the highest you’ve ever seen? Do share! Thanks!
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Replies
That's not that high. Once you get around 20 the fan runs out of capacity to move enough air to get a measurement.
Thanks--very helpful to know!
1906 balloon framed 2.5 story. 21ACH@50PA. The tech could not depressurize enough to pull 50PA.