Rockwool is very similar in performance to Cellulose, with two primary distinctions: flame-proof rather than flame-resistant (Cellulose), and able to soundproof airborne and vibrational sounds rather than exclusively airborne (Cellulose). Both are excellent products that you can’t go wrong with, but because Rockwool is priced at a premium rate, we recommend it primarily to homeowners who want to prioritize fireproofing or soundproofing. See more info on our ‘soundproofing’ page.
- Lifetime guarantee
- Never settles, packs, or loses its insulating qualities
- Non-toxic, safe
- Allergy, asthma, & immune compromise friendly
- Low dust
- Safe to touch & breathe in
- No itching
- Environmentally friendly
- Rodent resistant
- Safely, ethically, and naturally
- Insect resistant
- Safely, ethically, and naturally
- Mold, mildew, & fungus resistant
- 10.4” to attain an R38
- Soundproofing
- Airborne sounds
- Vibrational sounds
- Blown in
- Excellent coverage & seal
- Fits custom shapes easily
- Suitable installation for difficult, low crawl spaces
- Fireproof (rather than fire resistant)
- Easy to work in for attic upkeep