Blower door – GreenBuildingAdvisor

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!