N5 features a 39mm width insulating strip, which provides superior thermal insulation; It can prevent direct cold drafts where the air distributed in the upper part of the window sash.Our uniquely designed side ventilation window features a floor-to-ceiling large glass structure,which allows the room to be ventilated effectively. Profile thickness:1.8mm Frame Depth:90/100mm Frame Width:19.2mm Sash Width:70.4mm Glass Standard:5G+20A+5G Hardware:HOPO Mesh:304 ss/316 ss/Nylon