NW Reinforced 647 is a Generation 4 folding glass wall system specifically designed for mid-rise buildings where higher windload requirements and limits to deflection are needed. Designed to meet the structural capabilities required for taller buildings with a DP rating of +/- 70 psf in accordance with (ASD) Allowable Stress Design Pressure, the reinforced framed profile is styled in an angular design where the intersection of two folding panels is a mere 5 1/4" (133 mm). NW Reinforced 647 is independently certified and rated to meet CW-PG35. Depending on glass type selected, NW Reinforced 647 offers thermal performance values as low as “.24”. The system comes standard with continuous seals along the face of each panel frame.
Further info from manufacturer on NW Reinforced 647 NanaWall