Integro 6400HP (High Performance) curtainwall product is water tested to 50 PSF. Please see link to test report.
Maximum Design Pressure:
-130.0 PSF / +90.0 PSF
Mullion Dimensions:
4" X 6"
Monolithic Glazing
1. ¼" Heat Strengthened Glass (Outboard)
2. Interlayer
3. ¼" Heat Strengthened Glass (Inboard)
Double Glazed
1. ¼" Heat Strengthened Glass (Outboard)
2. ½" Air Spacer
3. ¼" Heat Strengthened Glass
4. Interlayer
5. ¼" Heat Strengthened Glass (Inboard)