Cellulose
- High R-Value per
inch
- May settle after
installation
- Most have high recycled content
(~85%)
- To protect against fire hazards,
cellulose insulation is heavily treated with fire-retardant
chemicals prior to installation (newer material is far
better)
- Older cellulose had Formaldehyde
in the inks which is a mild Allergen
|
Glass
Fibre
- Good R-value per
inch
- May settle after
installation
- Glass fibre contains up to 60%
recycled glass materials
- Low Flammability
|