Choose our double hung windows when ease of cleaning and air flow are your top priorities. Test Standard: AAMA/WDMA/CSA 101/1.S.2/A440-08 Unit Tested: XXXO - 4 Panel, 191 1/2" x 95 1/2" ... (DP) rating for air or water infiltration. An outstanding choice when air circulation and ease of use are paramount. Single & Double Glider. L4H … It blocks UV rays, decreases condensation, and reduces heat loss while minimizing outside noise infiltration. Woodbridge Ontario. Helps restricts air infiltration and creates a water-resistant seal Tested as a low-pressure insulating material for window and door frames (AAMA 812) Applications. Double Hung. National Certified Testing Laboratories is an ISO/IEC 17025 accredited, full-service, independent testing laboratory serving the architectural and building product industries from 1977. Test Standard: AAMA/WDMA/CSA 101/1.S.2/A440-08 Unit Tested: 5.5.0 - 5 Panel Outswing, 143 1/2" x 95 1/2" ... (DP) rating for air or water infiltration. Because we build and test our windows to last, you can enjoy your Western Window Systems product for years to come. Our single hung windows are easy-to-clean and take up no additional space when open. Air Infiltration. Single Hung. Contact. AAMA 501 Methods of Test for Exterior Walls; ASTM E283 (laboratory) ASTM E783 (field) NFRC 400 Procedure for Determining Fenestration Product Air Leakage; Water Penetration Resistance. 500 Zenway Blvd. Manufactured in the U.S., each of our product families is tested for air, water, and structural performance and certified by the NFRC (National Fenestration Rating Council) and AAMA (American Architectural Manufacturers Association).

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