The cellulose sold at big-box stores often has a lower density than professional-grade material. Expect 15-20% settling. If you install it to 15 cm, within two years it may be only 12 cm thick, reducing your R-value. Solution: Over-install by 20%.
Dedeman is known for aggressive pricing. For cellulose, they often undercut specialty stores by 10-15%, especially during seasonal “verde acasa” promotions. izolatie celuloza dedeman
If you are a green builder, cellulose beats fiberglass or mineral wool hands down. The product at Dedeman typically carries low VOC emissions and high recycled content. The cellulose sold at big-box stores often has