__hot__ - Nsfs 347 2021

Evaluates the energy efficiency, water usage, and waste management of the facilities where the membranes are produced.

As sustainability continues to be a cornerstone of building design, NSF/ANSI 347-2021 provides the necessary assurance that your roof is built for the future.

Developed collaboratively by NSF International and the Chemical Fabric and Film Association (CFFA), the standard establishes a consensus-based framework for single-ply roofing. Unlike single-attribute labels that focus only on recycled content or energy star ratings, this framework uses a multi-attribute approach. It tracks a product's impacts from raw material extraction to manufacturing, building operations, and end-of-life reclamation. Applicable Roof Membranes

: The process of tracking energy, water, and waste to meet certification requirements often highlights inefficiencies, allowing companies to reduce overhead costs during manufacturing. nsfs 347 2021

Look for the on packaging or the manufacturer’s spec sheet. The mark will include the standard number (347) and year (2021 if updated). You can also search the NSF Certified Sustainable database online.

Next time you see a “compostable” fork, ask: Is it NSF 347 certified? If not, the claim might be just hot air.

Gaskets are submerged in synthetic water (pH adjusted, chlorinated) at elevated temperatures for 72–168 hours. The resulting leachate is analyzed for: Evaluates the energy efficiency, water usage, and waste

is the definitive national standard for evaluating and certifying the environmental, health, and operational lifecycle impacts of single-ply roofing membranes . Originally developed through a partnership between ⁠NSF International and the Chemical Fabric and Film Association (CFFA), this consensus-based framework allows architects, builders, and manufacturers to substantiate sustainability claims through rigorous third-party validation.

Awards points for reclamation programs that take back old roofing material for recycling rather than disposal. Industry Impact and Certification

A roofing membrane cannot be sustainable if it fails early and must be replaced prematurely. This category heavily penalizes short-lived solutions by verifying: Unlike single-attribute labels that focus only on recycled

Social accountability, including fair labor practices, safety programs, and community investment.

The standard continues to evolve. In November 2025, Sika's Sarnafil® G 410 and Sarnafil® S 327 single-ply PVC roofing membranes achieved Platinum certification once again, improving their overall scores by 5 points each from the previous audit. These gains were driven by strong performance in Supplier Audits, Greenhouse Gas Reporting, and Innovation Credits.