Why build a house out of plastic foams like EPS, XPS or Polyisocyanurate when you can go foam-free with Mushroom® Insulation? This natural insulation board achieves a Class A fire rating (ASTM E84) without any fire retardant chemicals. Mushroom Insulation is safer for your health and safe for our planet. Ecovative offers an R-value guarantee; unlike plastic foams, the aged R-value of Mushroom Insulation will not decrease over time.
Mushroom Insulation is intended for above-grade applications and should be protected from weather similarly to wood.