Often times, bedrooms closest to the garage or bonus rooms above the garage get the hottest during a summer in Phoenix, AZ... and for good reason. Usually, the garage is hot and remains hotter than the outside, even well into the night. All that heat built up during the day takes time to dissipate, and a lot of it gets transferred into the home, causing adjacent rooms to heat up more than the rest of the house.
Here is how you can check if there is insulation present in the walls from the house to the garage. (Please note, our outside garage walls are never insulated because this is technically unconditioned space).
Surprisingly though, as a Phoenix energy auditor, this is not the sole cause of those adjacent rooms getting warmer than the rest of the house in the summer. In fact, in more than the 1,000 home energy audits we have done, 100% of the rooms adjacent to the garage walls and ceiling were insulated. Now were they insulated properly? Possibly... but still, don't get hung up on the wall insulation.
After performing an energy audit, we have been able to diagnose and correct the cause of the rooms heating up and it is attributed to three things in order of the most common causes.
You may have an older home built in the 60's, 70's, or even 80's with that beautiful original insulation still working away in your attic. You may have had a peek at it and been reminded of some landscape out of a bad dream... you may have even been able to see your studs popping above the insulation. As Phoenix home energy auditors, we often get asked, "does my attic insulation need to be removed before you install new insulation?" Well we are here to tell you that 95% of the time the answer is no, it does not need to be removed. Even though it may look like sand or have more dust in it than your old record collection, it still has its insulation properties, however diminished they may be. By simply adding the appropriate insulation type on top (or sometimes beneath) your existing insulation, our energy improvement technicians can get your attic super insulated and help make a more comfortable home.
So when would you need to have your attic insulation removed, or extracted as we say in the biz. There are times when removing that old insulation should be done and is recommended, and they are listed below.
Those are the only two reasons why your insulation should be extracted from your attic, however there are other arguments that merit mention here.
Do you have any opinions on insulation removal or have you done it before? Leave us your comments below to share your story.
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