347 2021 | Nsfs

: The standard aligns with the U.S. Environmental Protection Agency's (EPA) federal purchasing recommendations, making it a critical filter for securing government and public works contracts.

This category provides a pathway for manufacturers to earn additional points for developing and implementing new, cutting-edge sustainable technologies or practices that go above and beyond the standard's baseline requirements. It encourages continuous improvement and drives the entire industry toward more innovative and environmentally friendly solutions.

The standard eliminates "greenwashing" by providing a transparent, third-party verified assessment of a product's environmental performance. LEED and Green Building Certification

Awards points for reclamation programs that take back old roofing material for recycling rather than disposal. Industry Impact and Certification nsfs 347 2021

Evaluates raw material extraction, the use of environmentally conscious components, and the integration of recycled materials into the base membrane.

This category evaluates the operational footprint of the production facility. Auditors assess steps taken to minimize greenhouse gas emissions, optimize energy conservation, manage water usage responsibly, and divert landfill waste through progressive industrial recycling systems. 3. Membrane Durability

Focuses on energy efficiency and waste reduction during production. : The standard aligns with the U

The NSF/ANSI 347 evaluation uses a holistic, life-cycle-based point system. Manufacturers submit comprehensive operational data and material formulas to independent certifiers, earning weighted scores across five structural categories: 1. Product Design

A sustainable product is a durable one. This criterion evaluates the roof membrane's resistance to weathering, UV radiation, and mechanical damage, ensuring it has a long lifespan and reduces the need for frequent replacements. 4. Corporate Governance

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. It encourages continuous improvement and drives the entire

Originally developed through a partnership between NSF International and the Chemical Fabrics and Film Association (CFFA) , NSF/ANSI 347 uses life-cycle assessment (LCA) principles to evaluate roofing products from "cradle to grave." This means the product is audited from the moment raw materials are extracted, through manufacturing and building use, up to its ultimate end-of-life disposal or recycling. Eligible Roofing Materials

Measures operational efficiency, including water use, energy consumption, and waste management.

Uses a points-based system for objective comparison.