What is NSF/ANSI 347?

NSF/ANSI 347 is the leading consensus standard for evaluating and certifying sustainable attributes of single ply roofing membranes over their entire product life cycle.

NSF Sustainability provides certification to the NSF/ANSI 347 Sustainability Assessment for Single Ply Roof Membranes. Single Ply Roofing Membranes, as defined by this standard, include, but are not limited to, membranes produced from EPDM, KEE, PVC, TPO, and PIB products.

The NSF/ANSI 347 Sustainability Standard for Single Ply Membranes provides objective, neutral and transparent data to use to compare and assess the sustainable nature of different products. Based on life-cycle assessment principles, NSF/ANSI 347 employs an easy-to-use point system to evaluate roofing membrane products against established prerequisite requirements, performance criteria and quantifiable metrics in five key areas:

1. Product design
2. Product manufacturing
3. Membrane durability
4. Corporate governance
5. Innovation

Certification levels are based on the following point scale:

Conformant   Minimum 35 points
Silver            Minimum 45 points
Gold             Minimum 56 points
Platinum        Minimum 75 points

Platinum indicates the highest score and the highest certification earned.

Sika Sarnafil Membranes Earn The Highest Certification- Platinum

Sika Sarnafil is the first manufacturer to achieve platinum certification to the NSF/ANSI 347 Sustainability Assessment for Single Ply Roofing Membranes for their S327 and G410 roofing membranes.

NSF347 Certification for S327 Membranes

NSF347 Certification for G410 Membranes

Sika Sarnafil has lead the industry in developing roofing and waterproofing systems that meet the key sustainability goals of energy efficiency, environmentally preferable products, greenhouse gas reduction, and waste reduction including an industry-wide PVC Roof Membrane Recycling Program through which Sika Sarnafil has processed nearly 40 million pounds of roofing membrane since 2005. Sika Sarnafil is the only roofing manufacturer to recycle old roofing membrane into new roofing membrane and whose recycled content claims have been UL certified.

Why Choose Sika Sarnafil?

  • Experienced technical staff
  • Proven long-term performance
  • Low life cycle costs
  • Energy efficient roofing systems
    - Highly reflective EnergySmart Roof membranes
    - Green roofs
    - Solar roofs
  • Authorized applicators
  • Design flexibility
  • ENERGY STAR® rated membranes
  • Roof recycling program