Whether it’s new construction or retrofit,

Greenfiber makes jobs go better.

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From attics to walls to floors, Greenfiber cellulose blows over old insulation, above non-woven netting, and into any hard-to-reach space down to the smallest chink. As a result, you get foolproof coverage in one fell swoop. And your customers get greater comfort and lower bills plus extra benefits including noise reduction and protection from fire, extreme temperatures and humidity.

Why should you switch?

See all our benefits
  • Retrofit without the fuss.

    It’s easy to blow Greenfiber over existing insulation without removing the old—and without itching.

  • 25% Reduction in Heating & Cooling Costs ¹

    A comfort to your clients

  • Absorbs sound.

    Filling every gap and void, Greenfiber helps sound-shield homes.

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If walls could talk, they’d recommend Greenfiber.

Across the US and Canada (and it gets really cold there), we’re the energy-saving, cost-effective, smart insulation choice. We’re also the leader in cellulose insulation, making it easily available for use in attics, walls and floors throughout the home.

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LEED Green
Building Certification

To earn certification under the U.S. Green Building Council's (USGBC) Leadership in Energy and Environmental Design (LEED) rating system, projects must not only satisfy all LEED system prerequisites, but also earn a minimum number of credits.

Greenfiber meets five significant criteria used in the USGBCs LEED certification ratings system:

  • Improve building durability
  • Rental Machine Accessories List
  • Conserve energy and electricity
  • Reduce demand for raw material
  • Improve indoor environmental quality

When applied properly, Greenfiber's fiber insulation products will contribute materially toward earning points in a LEED certification for LEED Green Building Design and Construction Rating System (BD + C) and LEED for Homes Rating System.

You can read more about Greenfiber's insulation contribution points here. You can also read a detailed report about Greenfiber insulation products and LEED projects, and a case study of Greenfiber insulation in a LEED Gold Certified Building.

UL Certifications

Product Designation Applicable Fire-Resistive Design(s)
FRM (Fire Rated Material) U370, U377
INS735, INS745, INS765LD and INS770LD G524, L521, L528, L546, L576, L582, M509, M512, P522, U023, U032, U036, U040, U053, U305, U309, U311, U317, U321, U326, U330, U331, U333, U338, U339, U340, U341, U342, U344, U354, U355, U356, U398, U403, U411, U412, U420, U425, U426, U428, U429, U434, U435, U436, U438, U440, U460, U462, U463, U465, U466, U467, U469, U470, U471, U477, U478, U495, U498, U499, U528, U622, U646, U647, U648, U651, V302, V303, V401, V410, V414, V416, V421, V455, V472, V481, V493, V495, W405, W419
INS510LD, INS515LD and INS541LD P522, U032, U036, U305, U309, U311, U317, U321, U326, U330, U331, U333, U338, U339, U340, U341, U342, U344, U354, U355, U356, U398, U528, V302, V303

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¹ Savings vary. Find out why in the seller's fact sheet on R-values. Higher R-values mean greater insulating power. Based on energy analysis of climate zones 1–7 using 2018 IECC reference home comparing R11 attic to DOE recommended attic insulation by climate.