Manufacturer's Certifications Statement

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Manufacturer’s Certifications Statement American Recovery and Reinvestment Act of 2009

Raven Industries Certification: Raven Industries Engineered Films Division, a manufacturer of vapor barriers and vapor retarders located at 1813 E Avenue, Sioux Falls, South Dakota, 57104, certifies that the following vapor retarders are designed to limit infiltration as a system and are eligible building envelope components as defined in Section 4.01 of IRS Notice 2009-53. Product Description Dura♦Skrim® 6BB Dura♦Skrim® 6WB Dura♦Skrim® 6WW Dura♦Skrim® 8BB Dura♦Skrim® R8WB Dura♦Skrim® R12BB Dura♦Skrim® 12WB VaporBlock® VB6 VaporBlock® VB10 VaporBlock® VB15 VaporBlock® Plus™ VBP20

Product Part Number R6BB R6WBK R6WWK R8BBR R8WBK R12BBR R12WBK VB6 VB10 VB15 VBP20

Under penalties of perjury, I declare that I have examined this certification statement, and to the best of my knowledge and belief, the facts are true, correct and complete.

Homeowners: Do not submit this certification statement with your income tax. Save with your income tax records along with your receipts. Note: When installing barriers or retarders that limit air and moisture infiltration, follow applicable building codes and utilize proper design and construction building methods. Improper installations and or designed systems can trap moisture leading to mold formation or other related problems regardless of the quality of the retarder or barrier. Proper ventilation is required when installing barriers or retarders in confined spaces to prevent the capture of gases or odors that may be present or manifested as a result of installing an air / moisture retarder.

Dura♦Skrim® and VaporBlock® are registered trademarks of Raven Industries, Inc. RAVEN INDUSTRIES 112010 ENGINEERED FILMS DIVISION