Nsfs 347 2021 Now

Rather than offering a simple pass/fail grade, products reviewed under NSF/ANSI 347 receive one of four distinct, verified certification levels based on their point totals:

When verifying compliance, specifiers should consult official repositories like the ⁠NSF Product and Service Listings to ensure active, third-party audited status. Proactive Next Steps

NSF/ANSI 347 refers to the Sustainability Assessment for Single Ply Roofing Membranes , a standard developed by NSF International. nsfs 347 2021

Uses a points-based system for objective comparison.

: Implementation of formal corporate frameworks such as ISO 14001. 3. Membrane Durability (40 Maximum Points) Rather than offering a simple pass/fail grade, products

By evaluating the entire product life cycle, the standard prevents "greenwashing" and ensures that an improvement in one environmental area does not inadvertently cause a negative impact elsewhere. 2. The Five Core Pillars of Evaluation

The 2021 revision replaces all prior versions (2017, 2013, etc.), introducing updated chemical extraction limits, mechanical performance tests, and stricter material safety criteria. : Implementation of formal corporate frameworks such as

This category evaluates the integration of environmental and life cycle thinking into the product design process. It rewards manufacturers who consider a product’s entire journey—from raw material selection to end-of-life disposal or recyclability—at the earliest design stages. This proactive approach ensures that sustainability is built into the product’s DNA rather than being an afterthought.

) was developed to give architects, specifiers, and building owners a reliable way to distinguish truly sustainable products from those making unsubstantiated "green" claims. Core Evaluation Criteria