Nsfs 347 2021 Jun 2026

Prior to NSF/ANSI 347, specifying a sustainable roofing membrane was challenging. Specifiers had to choose between various single attributes, such as durability, low VOCs, or recyclability, without a comprehensive, multi-attribute assessment. This led to the development of a standard that evaluates a product's entire life cycle, from raw material extraction to end-of-life management.

If your goal is to specify a truly sustainable roofing system, understanding NSF/ANSI 347 is a crucial first step. While the search term "nsfs 347 2021" was a red herring, the standard it was pointing toward is a real and impactful tool for building a more sustainable future.

A roof cannot be sustainable if it must be replaced every decade. This section assesses the physical properties, projected service life, and ease of repairability of the membrane. High-performing membranes that maximize building energy efficiency (such as highly reflective "cool roofs" that combat the urban heat island effect) score highly here. 4. Corporate Governance

Visit www.nsf.org and search their certification directory under “Sustainability – Single-Use Items.” nsfs 347 2021

Achieving the designation requires industry-leading metrics in supplier transparency, low-impact manufacturing, and innovative material reclamation.

Products are awarded one of four tiered ratings based on their total point score: Minimum 35 points Silver: Minimum 45 points Gold: Minimum 56 points

Looking ahead, the principles embedded in NSF/ANSI 347 are likely to become even more critical. As climate change concerns intensify and building codes become more stringent, standards that address the carbon footprint of building materials will be in high demand. Future revisions of the standard may incorporate even more rigorous criteria for embodied carbon, circular economy principles, and climate resilience. Prior to NSF/ANSI 347, specifying a sustainable roofing

The standard evaluates roofing membranes not on a single characteristic, but across four distinct categories. Manufacturers earn points in each area to achieve a final certification level.

As one of the most heavily weighted categories, product manufacturing quantifies the environmental impacts of the production process. This includes measuring energy use, water consumption, greenhouse gas emissions, and waste generation. The standard rewards manufacturers who actively work to reduce or eliminate these negative impacts, promoting cleaner and more efficient manufacturing practices.

To verify compliance, NSFS 347 mandates a rigorous test protocol, including: If your goal is to specify a truly

, which provides a framework for evaluating the environmental performance and sustainability of single-ply roofing products. Key Details of the Standard

Encouraging the use of recycled content and the reduction of hazardous chemicals during the formulation phase. Product Manufacturing:

Requires public commitment to ethical labor and environmental policies.

Manufacturers must quantify and actively reduce the operational footprint of their production plants. Points are earned through: Implementing energy efficiency programs