
Blast Resistant - B6500IBG Series Twin Casement
Frame Depth (inches) 2.25
Description Blast resistant architectural grade 2-1/4" casement window that installs inboard of existing window.
- Applications
- Security and Blast Resistant
Test Size (inches)
88 x 96.75
Condition/Hazard Response
No Break
Design Blast Pressure (psi)
5.3 psi
Positive Phase Impulse (psi-msec)
32.8 psi-msec
Test Method
ASTM F 1642

Standard Features
- Interior-mounted, fixed and casement windows for blast mitigation
- Preserves original windows while providing blast protection for historic projects
- Provides cost saving blast solution by not disturbing original installation
- Provides GSA level C protection against explosive attacks
- Meets DoD UFC 4-010-01 criteria
- Casement vents are designed to operate after blast incident
- Single glazing or 1” insulating glass construction using industry standard laminated technology
- Standard multi-point locking hardware or maintenance-only option available
- Vents swing inward for easy cleaning and access to exterior window
- Can also be used as primary blast window
- Improved acoustic and thermal performance by adding additional interior glazing layer