Insulating over concrete garage floor
Our home is older – built in 1923, and has a great garage space, with a concrete floor that slopes outward. Several years ago, I repurposed the garage into a home gym, adding rolled covering that is 2.5mm thick. However, I still didn’t like the slope of the floor as it limited the way I can arrange equipment. So, a couple of years ago I built a raised floor using high grade cedar decking – 6″ x 1″ on 12″ centered floor joists. The floor is beautiful, stable, and works perfectly. Now I would like to insulate the space between the rubber matting and the raised floor. Can I use rolled fiberglass insulation in that space? There are no leaks in the garage.
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