Proven Performance


Blast mitigation systems are another milestone in YKK AP’s history of innovation. As we began developing these products, we turned to our family of YKK AP ProTek™ systems because many of them already met the prescriptive standards of the UFC.


YKK AP conducted voluntary open air/arena blast tests in accordance with ASTM F-1642 at an independent test laboratory at a peak pressure and impulse level compliant with the UFC and the majority of the GSA requirements. These open air tests enable YKK AP to validate the enhanced performance levels of several of our YKK AP ProTek&153; Systems to help lower project costs while providing the same level of protection. Testing applications with an interior structural silicone seal (wet glazed) and with gaskets on both the interior and exterior (dry glazed) clearly demonstrated the ability of both approaches to help protect building occupants. A 26’-0” tall curtain wall mockup was also tested to determine the effect of a blast on the intermediate anchors and vertical splices. Through all of the testing, the YKK AP ProTek systems consistently met or exceeded government requirements by delivering a minimum 3b level of performance.





GSA & AAMA DoD Description of Window Glazing Response
Performance
Condition		 Production
Level		 Hazard
Level		 Level of
Protection
1 Safe None High Glazing does not break. No visible damage to glazing or frame.
2 Very High None Medium Glazing cracks, but is retained in the frame. Dusting or very small fragments near sill or on the floor acceptable.
3A High Very Low Low Glazing cracks. Fragments enter space and land on floor no further than 3.3 feet from the window.
3B High Low Glazing cracks. Fragments enter space and land on floor no further than 10 feet from the window.
4 Medium Medium Very Low Glazing cracks. Fragments enter space and land on floor and impact a vertical witness panel at a distance of no more than 120 inches from the window at a height no greater than 24 inches above the floor.
5 Low High Below Anti-
Terrorism (AT)
standards		 Glazing cracks and window system fails catastrophically. Fragments enter spaceimpacting a vertical witness panel at a distance of no more than 120 inches from the window and at a height greater than 24 inches above the floor.

Specify YKK AP ProTek™

YKK AP is proud to offer a full line of systems designed to help protect buildings and occupants from both natural and man-made threats. Please see the back of this brochure for a complete listing of YKK AP ProTek systems and contact one our sales representatives for additional information.