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Are There Eco-Certifications for Hemp Insulation?

April 6, 2026

Quick Answer

Yes, there are eco-certifications for hemp insulation, such as the Greenguard Gold certification and the Declare label.

Eco-Certifications for Sustainable Insulation

Hemp insulation is becoming increasingly popular due to its eco-friendly and sustainable properties. As with other natural insulation materials like sheep wool, cellulose, straw, and cork, hemp insulation requires certification to ensure its quality and environmental performance. The Greenguard Gold certification is a widely recognized standard for indoor air quality and low VOC emissions in building materials. This certification ensures that the hemp insulation meets strict standards for chemical emissions and indoor air quality.

Certifying Agencies and Labels

The Declare label is another important certification for building products, including hemp insulation. This label provides transparency about the product’s composition, health, and environmental impacts. Declare is a program of the International Living Future Institute (ILFI), which sets rigorous standards for building products that meet the requirements of the Living Building Challenge. Other certifying agencies, such as the American National Standards Institute (ANSI) and the International Organization for Standardization (ISO), also offer certifications for hemp insulation and other natural materials.

Choosing the Right Hemp Insulation

When selecting hemp insulation, it’s essential to look for products that have been certified by reputable agencies such as Greenguard Gold or Declare. These certifications ensure that the product meets strict standards for indoor air quality, chemical emissions, and environmental sustainability. Additionally, consider factors such as R-value, density, and moisture resistance when selecting hemp insulation. A well-insulated building with hemp insulation can achieve an R-value of R-3.5 to R-4.0, providing excellent thermal performance and energy efficiency.

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