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2017 Maine Home Show

190 Birch Street Lewiston, Maine 04240

March 18, 2017 - 10:00AM to 7:00PM

March 19, 2017 - 10:00AM to 4:00PM


Insulation Only Works If It's In Good Shape: Have an Energy Audit

When winter's on its way, It's already heating season.  So how do you save money on heating costs? You've got to own your heat. Simple as that. You've paid for all that warm air already, so it doesn't make much sense to waste it now.

A simple enough premise - it's the application that gets complicated.  We (and most building science experts) strongly recommend air sealing and insulation as high priority measures to make your home use less energy, make you more comfortable, and make the planet happy.  Insulation must be done by a contractor, and for the most part can only be installed by getting inside walls that are now closed up.  And unlike air sealing flaws, which you can often see just by scanning your basement walls, the quality of insulation in your house is, for the most part, difficult to assess. (Thankfully, the attic, which is the most critical spot for insulation, is the easiest to access).

This is an important point, because even if all insulation is created equal (a separate discussion), that doesn't necessarily mean that all insulation is equally well installed - which, in this case, may be just as important.  Insulation only works when it's installed to specifications, and when it's in good shape.  So even if there is insulation in your walls, even if you've seen it or paid for it or been told by your real estate agent that it's there, it may be sleeping on the job.The best way to assess the quality of otherwise "invisible" insulation is a home energy audit from aqualified home energy auditor with an infrared scanner. A recent home energy audit at our house revealed the inconvenient truth that the insulation in the walls - 'til then thought to be sufficient - was weak in several places.  Folded over here, damp and compromised there, some spots having been missed altogether during installation. Some of it hadn't been properly installed, or the years had simply taken their toll and, in a couple spots, the installer just happened to miss an entire cavity.  Whatever the case, the energy auditor's infrared camera showed that heat was leaking through the walls... secretly.

Another reason why we have come to view home energy auditors more and more as problem solvers.  Without a home energy audit, it would still be a mystery... The Case of the Cold House and the Disappearing Dollars.


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Nice post

This is so good. You give us a good suggestion for having heated home in winters. I highly appreciate your work in your each post as you know very well how to use review in your pot to make it perfect. Good work, keep it up!

good one

good one

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