Blown fiberglass is a non-combustible, inorganic loose-fill material that resists moisture absorption and does not support mold growth. It is an excellent choice for attic floors in homes with moisture concerns or where non-combustible materials are specified.
Blown fiberglass achieves R-2.2 to R-2.7 per inch, requiring 18–22 inches to meet the Massachusetts R-49 attic requirement. It is particularly well suited for attics in coastal New England homes where humidity management is a concern.
Will not burn — Class A fire rating for maximum fire safety
Inorganic glass fibers do not support mold growth or absorb moisture
Qualifies for Mass Save rebates for qualifying Massachusetts homeowners
Fiberglass maintains its installed depth better than cellulose over the long term
Attic conditions evaluated for moisture, ventilation, and existing insulation.
Attic baffles confirmed. Knee wall areas identified.
Blown to specified depth per manufacturer R-value tables.
Depth documented for Mass Save compliance.
Response within 2 hours. Mass Save® eligibility reviewed on every quote.
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