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Northern Built

Northern Built

A Cold Climate Construction and Energy Blog

Tag: Minneapolis Blower Door

Posted on January 7, 2021January 7, 2021

Opinion-5 Reasons to Own A Blower Door

By now most of us know what a blower door does and the basics of how they work.  All energy auditors and raters own one.  A few insulating contractors I know also have purchased their own blower door.  As a contractor, does it make sense to invest a sizable amount of money and then take the time to learn how to operate this piece of test equipment. Continue reading “Opinion-5 Reasons to Own A Blower Door”

Posted on December 18, 2020December 18, 2020

Energy Audit-Advanced Blower Door Testing-Zonal Pressures

Most of us by now know what a blower door is.  A tool to measure the air tightness of a house.  I’ve owned my Minneapolis Blower Door since 2009.  Many states have adopted mandatory tightness testing on all new construction.  In my area, the minimum is three air changes per hour at 50 Pascals (3 ACH50), Continue reading “Energy Audit-Advanced Blower Door Testing-Zonal Pressures”

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