| Attribute | Biofill™ (Flowable) | Spray Foam | Traditional Hempcrete |
|---|---|---|---|
|
Install method |
Poured into standard wall framing; hardens in 45–60 min |
Sprayed into cavity; several hours to fully cure |
Hand-mixed and tamped into forms, days per wall section |
|
Cost |
~$4.52/cu ft material |
~$6–$8/cu ft installed |
~$8–$12/cu ft (material + labor) |
|
Carbon impact |
Carbon-negative |
Carbon-positive (petroleum-based) |
Carbon-negative but slower to place |
|
Breathability |
Breathable, manages moisture |
Vapor barrier, can trap moisture |
Breathable |
|
Requires wall framing |
Yes |
Yes |
Yes |
All three approaches require standard wall framing. Biofill™ replaces the insulation layer — not the studs.
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