JT-68 DOUBLE-HUNG SOLID WOOD WINDOW

Product Section Details

 

Product performance

 

• Wind pressure resistance: q3≥5.0

 

• Air tightness: q1≤0.5, q2≤1.5

 

• Insulation property: 2.5>K≥2.0

 

• Water tightness: 500≤△P<700

 

• Sound insulation: 34≥Rw<30

 

Product configuration

 

• Opening method: Outward casement window

 

• Timber: North American red oak as standard; other rare and valuable timbers available for upgrade

 

• Outer frame: Visible face thickness 65mm

 

• Glass sash: Visible face thickness 52mm

 

• Glass: CSG/Xinyi Group glass original 5G+15A+5G

 

• Handle: German original HOPPE handle

 

• Hardware system: upgradable to ROTO’s German system