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.
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
This article explores what NSF/ANSI 347-2021 entails, why it matters, and how it shapes the future of sustainable roofing. What is NSF/ANSI 347?
Evaluates raw material extraction, the use of environmentally conscious components, and the integration of recycled materials into the base membrane.
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Major municipal water departments (e.g., Los Angeles Department of Water and Power, New York City DEP, Toronto Water) now explicitly require in their specifications. Contractors using older-certified gaskets face immediate rejection and potential blacklisting.
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Assesses the long-term performance and repairability of the membrane in various climate zones to ensure longevity. Corporate Governance:
In the world of industrial components, few documents are as critical yet as misunderstood as the NSFS 347 2021 standard. For engineers, procurement specialists, and compliance officers working with fluid handling systems, this standard represents a cornerstone of safety and material reliability. This article breaks down everything you need to know about NSFS 347 2021—its scope, requirements, testing protocols, and why the 2021 revision matters more than ever. Looking ahead, the principles embedded in NSF/ANSI 347
Before this standard, labeling a product as "sustainable" was often vague and inconsistent. NSF/ANSI 347 was created to provide objective, measurable criteria to answer fundamental questions about a roof's environmental footprint. A roof is a building's first line of defense against the elements and a major factor in its energy efficiency. By focusing on single-ply membranes (like TPO, PVC, and EPDM), this standard directly addresses the significant potential for improving a building's energy performance and positively impacting the urban environment.
The 2021 edition outlines specific criteria that manufacturers must meet to achieve certification. These are divided into three main categories:
Achieves basic prerequisite criteria plus a foundational level of optional points.
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The standard eliminates "greenwashing" by providing a transparent, third-party verified assessment of a product's environmental performance. LEED and Green Building Certification
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.
Another significant aspect of NSF's work is its support for research and innovation. Through funding grants for research projects, the NSF enables scientists and engineers to explore new ideas, conduct experiments, and develop technologies that can lead to breakthroughs in various fields. This support not only contributes to the body of knowledge in specific areas but also has the potential to lead to practical applications that improve people's lives and drive economic growth.
Ensures that sustainability claims are scientifically verified by a third party.