Rock wool batts are not as easy to cut as fiberglass. They have poor "loft" qualities, which means they're a real pain to fit into non-standard cavities. And if you can't properly fill a space, the increased r-value (vis-visit fiberglass) is unrealistic. I personally find most newer fiberglass batts less itch-provoking than once-upon-a-time (I'm 62), but Roxul (the most often used brand in ontario/quebec) every bit as nasty as old-fashioned rock wool.
If an installer doesn't like working with the stuff, he/she is gonna do a poor job
And what about built in cutter? And piercing rod?
how UN-ostentatious. Thank you
tres sweet. nice work. (but long to. winters? everythings relative...) rod in gatineau (ottawa)
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