It's time for me to rag on something besides batt insulation
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In case you haven't noticed, I've been pretty hard on batt insulationInsulation, usually of fiberglass or mineral wool and often faced with paper, typically installed between studs in walls and between joists in ceiling cavities. Correct installation is crucial to performance. in the [ past](http://www.greenbuildingadvisor.com/blogs/dept/green-building-curmudgeon/should-batt-insulation-be-outlawed). I feel that my complaints and concerns are well justified, but no matter which insulation product is chosen, it has to be installed properly or it just doesn't work.
Many people mistakenly believe (myself once among them) that spray polyurethane foam (SPF) is the perfect product, is always installed right, and tightens up homes every time.
](http://www.greenbuildingadvisor.com/blogs/dept/green-building-curmudgeon/spray-foam-insulation-not-magic-bullet){kind=link}
](http://www.greenbuildingadvisor.com/blogs/dept/green-building-curmudgeon/spray-foam-insulation-not-magic-bullet){kind=link}
](http://www.greenbuildingadvisor.com/blogs/dept/green-building-curmudgeon/spray-foam-insulation-not-magic-bullet){kind=link}
](http://www.greenbuildingadvisor.com/blogs/dept/green-building-curmudgeon/spray-foam-insulation-not-magic-bullet){kind=link}
Wow, cool post. I’d like to write like this too – taking time and real hard work to make a great article… but I put things off too much and never seem to get started.
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