We had Icynene brand open cell foam applied to out attic and second floor bedroom that has no attic space. Our contractor left no mess what so ever, there was no odor after the first 24 hours except in "dead spaces" like closets. I am thrilled beyond belief, noises that we would hear on windy days were gone, the attic runs 55 - 60 in middle of the winter weather here in Western MA, no ice dams and although we heat our 3500 square foot house with an OWF, my wood consumption is down. The only thing to be aware of is that with less air leakage the moisture content of you house will go up. You may notice more condensation on windows than pre-spray foam. We had a great local contractor with a great crew that did a great job. I highly recommend spray foam but I agree, anyone can buy the equipment and materials, only proper training by the manufacturer can ensure proper application.
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