1. VSI Product Certification Program
Cladding with Confidence

2. The Vinyl Siding Institute, Inc. (VSI)
Background
The Vinyl Siding Institute, Inc. (VSI)
Located in Washington, DC
Represents polymeric siding manufacturers and suppliers to the industry
VSI sponsors a program to certify with third-party verification the quality of both vinyl and polypropylene siding

3. VSI Product Certification Program
Includes both polypropylene siding and vinyl siding
Manufacturers certify their siding meets or exceeds the appropriate ASTM standard
Verified by an independent, accredited quality control agency
Twice yearly, unannounced plant inspections, product testing, and quality control plan review conducted 3

4. Certification Program Milestones
1998
Established VSI Product Certification Program
Certification of vinyl siding to ASTM D3679 Standard Specification for Rigid Poly(Vinyl Chloride) (PVC) Siding
2006
Certification of color retention of solid colors of vinyl siding to ASTM D6864 Standard Specification for Color and Appearance Retention of Solid Colored Plastic Siding Products (also must meet ASTM D3679)
2007
Certification of color retention of multi-color variegated vinyl siding to ASTM D7251 Standard Specification for Color and Appearance Retention of Variegated Color Plastic Siding Products (also must meet ASTM D3679)
2010
Certification of polypropylene siding to ASTM D7254 Standard Specification for Polypropylene (PP) Siding

5. Performance tests for polypropylene siding:
ASTM D7254
Performance tests for polypropylene siding:
Impact resistance
Weathering
Windload resistance
Flame spread

6. How We Characterize Certified Polypropylene Siding
Products certified to meet or exceed ASTM D7254 are inspected and tested by the third-party Administrator to:
Weather elements over time without cracking, chipping, flaking, pitting, or peeling
Meet impact resistance requirements
Withstand wind pressures equivalent to 110 mph or more
Demonstrate flame spread performance equivalent to or better than wood materials

7. How Does a Polypropylene Siding Become Certified?
Manufacturer signs an agreement with VSI and the Administrator
The Administrator conducts an initial review of the manufacturer's quality control procedures and an announced plant inspection for adherence to ASTM D7254
Administrator conducts twice yearly, unannounced inspections and additional tests
Manufacturer marketing materials are reviewed
Manufacturers who are not VSI members can certify their products through VSI’s Program, but an additional annual fee above the per square fee is required

8. Program Administrator
Architectural Testing, Inc.
Third-party Administrator for the VSI Product Certification Program since 1998
Qualifies and validates certified products
Conducts twice yearly, unannounced plant inspections
Updates Official List of Certified Products at
Is an accredited quality control agency

9. Official List of Certified Products
Found on VSI’s website
Allows users to search for certified siding by material type, manufacturer, product, or brand
Updated whenever changes occur
Notes certified colors of vinyl siding as well

10. Official List of Certified Products
Search for siding by company, brand, or product

11. Official List of Certified Products
Select polypropylene siding, vinyl siding, or both

12. Polypropylene Siding Label
Manufacturers are required to use an official Polypropylene Siding Label on their
product cartons to identify all polypropylene siding certified to meet or exceed ASTM D7254

13. Polypropylene Siding Logo
The Polypropylene Siding Logo is designed for use in marketing collateral for polypropylene siding certified to meet or exceed ASTM D7254, but is not required
Label can also be used on marketing materials
Administrator conducts annual reviews to ensure proper use of Program marks
Product literature
Websites
Other marketing materials

14. Certification Label and Logo
Manufacturers must use the official VSI Polypropylene Siding Label on shipping containers to identify all certified siding and may use the Polypropylene Siding Label or Logo on product literature to identify certified siding
All usage of the Polypropylene Siding Logo and Label must adhere to the current version of the Instructions for Polypropylene Siding Label and Logo Use, as well as the applicable provisions of the Program Guidelines

15. VSI Certification Marketing Plan
Support certification of polypropylene siding
Educate builders, remodelers, architects, and consumers about:
Recognizing the quality and integrity of certified polypropylene siding and vinyl siding
Understanding the performance characteristics of certified polypropylene siding and vinyl siding
Work with code officials and other influencers to incorporate certified polypropylene siding in their product requirements

16. Marketing Certified Products
VSI creates the tools for manufacturers to market their certified polypropylene products
Manufacturers use these
tools and their own marketing efforts to differentiate their products in the marketplace 16

17. Marketing Tool Kit for Certified Polypropylene Siding
Messaging
Brochure
Polypropylene Siding Label/Logo and instructions for their use
Question and answer sheet
Press release template for newly certified products and VSI announcement press release
Sales PowerPoint
Program documents 17

18. Contact Information
Program Administrator
Architectural Testing Inc.
Sara Blue
(717)
Marketing Firm
Eastern Research Group
Kathleen Brady
(703)