NSF/ANSI 347 Certificate

A single-ply roofing membrane product is certified to NSF/ANSI 347, a point-based multi-attribute sustainability assessment covering product design, product manufacturing, membrane durability, corporate governance, and innovation, at Conformant, Silver, Gold, or Platinum level.

• Specific single-attribute claims (recycled content percentage, VOC emissions, carbon footprint) — those need their own evidence even if they earned points here.
• Roofing system performance claims such as reflectivity ratings or wind uplift, which are covered by other programmes.
• Claims for membrane products outside the certified product scope.

• Has NSF/ANSI Product Sustainability Certification →

  low risk

Minimum authority

Third-party verified

Should state

Certificate Number · Certification Level · Product Scope · Valid Until

Date sensitivity

Expiry matters — check the certificate is current.

Point-based multi-attribute standard: two certified membranes can earn their points in very different ways, so the level alone hides the detail.

Follows the same pattern as NSF/ANSI 140 (carpet), 332 (resilient flooring), 336 (fabrics), and 342 (wallcoverings) — category-specific standards, not interchangeable.