Hylea
Insulation
Materials used to reduce heat transfer in walls, attics, and floors. Options range from mineral wool and cellulose to plastic foams. Spray foam contains reactive isocyanates applied on-site.
Why It Matters
Spray foam insulation exposes installers to hazardous isocyanates and can off-gas for extended periods. Foam insulation may contain halogenated flame retardants and high-GWP blowing agents.
Chemicals of Concern in This Product
Isocyanates (MDI, TDI)
A family of highly reactive chemicals used to make polyurethane foams, coatings, and adhesives....
Formaldehyde and Formaldehyde Releasers
A colorless gas used as a preservative, disinfectant, and textile finishing agent. In clothing,...
HBCD (Hexabromocyclododecane)
A brominated flame retardant historically used in polystyrene insulation (EPS and XPS),...
Halogenated Flame Retardants
Chemicals containing bromine or chlorine added to products to slow the spread of fire. Common...
Ingredient Red Flags
Watch for these on ingredient labels:
- Spray polyurethane foam (isocyanates)
- XPS/EPS with halogenated flame retardants
- Formaldehyde-containing binders
- Products with HBCD
What to Look For
- ✓Cellulose (recycled paper, lower chemical impact)
- ✓Mineral wool with formaldehyde-free binders
- ✓Cork (naturally flame resistant, no additives)
- ✓Dense-pack or blown installation methods
Finding Safer Options
Blown cellulose, formaldehyde-free fiberglass batts, expanded cork, sheep's wool, wood fiber boards. Avoid spray polyurethane foam.
Certifications to Look For
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