Honestly compared
Compare insulation, honestly.
I sell all three products and I’ll tell you straight where each one wins. Pick a comparison, or read why I recommend cellulose.
Cellulose vs fibreglass batts
Why an R5 batt isn't an R5 in your roof: gaps, fire, rats, settling and the SDS fine print.
Cellulose vs polyester
Which of our own two products goes where. We don't have a dog in that fight.
Cellulose vs spray foam
Higher R-per-inch isn't the whole story: gaps, removability, isocyanates and recyclability.
Polyester vs fibreglass batts
The King of batts vs the itchy ones: non-itch, no SDS, moisture-shrugging, locally made.
Spray foam vs polyester underfloor
The honest version foam installers won't put on their site: moisture, removal, cost.
The 3-way comparison table
Cellulose, polyester and fibreglass side by side on gaps, fire, pests, sound, settling and guarantee.