Polymeric Exterior Products Association - VSI Product Certification Program

The Polymeric Exterior Products Association (PEPA) and their established VSI Product Certification Program is an independent, third-party certification Program with Intertek as the ISO/IEC 17065 accredited certification body. Approved products are authorized to utilize the Program’s certification mark.

Assure your customers that your products meet rigorous testing procedures and will provide the quality, durability, and longevity they promise. End-users can feel comfortable and confident when specifying or purchasing your product because the VSI Certification Mark confirms that the product meets industry standards.

The VSI Product Certification Mark makes the Product Certification Listing and Product Evaluation Report reference numbers easy to see, so you'll know the siding you're looking at is manufactured and tested to meet code with a quick look.

Accessible Reports
Through the Program, comprehensive reports are standardized to provide easy access to all code compliance information, with Product Certification Listing (PCL) and Product Evaluation Report (PER) reference numbers clearly identified. That means you get all the vital information you need at your fingertips, whether you’re specifying a job or inspecting a new build. Start searching now: https://bpdirectory.intertek.com/pages/DLP_Search.aspx

Accredited to ASTM D3679, ASTM D7793, ASTM D7254, and ASTM D7445 the accepted industry standards for vinyl siding, insulated vinyl siding, polypropylene siding, and backed vinyl siding respectively, we can inspect and verify that your products meet or exceed the applicable standard.

ASTM Standards
Certified vinyl siding is evaluated to ensure it complies with the ASTM D3679 product standard for:

• Weatherability, wind load, and impact resistance
• Expansion and shrinkage
• Surface distortion
• Length, width, and thickness
• Rate of burn
• Lead

Certified insulated vinyl siding is evaluated to ensure it complies with the ASTM D7793 product standard for:

• Weatherability, wind load, and impact resistance
• Expansion and shrinkage
• Thermal distortion
• Length, width, and thickness
• Rate of burn
• Lead
• Surface flame spread
• Compatibility of adhesives
• Thermal insulation value

Certified polypropylene siding is evaluated to ensure it complies with the ASTM D7254 product standard for:

• Weatherability, wind load, and impact resistance
• Surface flame spread
• Color
• Film adhesion

Certified backed vinyl siding is evaluated to ensure it complies with the ASTM D7445 product standard for:

• Weatherability, wind load, and impact resistance
• Expansion and shrinkage
• Thermal distortion
• Length, width, and thickness
• Rate of burn
• Lead
• Surface flame spread

Learn More about Polymeric Exterior Products Association (PEPA), formally Vinyl Siding Institute