Description
For intake or extract air, the 45° blades are fixed at 50mm centres and arranged in double bank formation to offer higher levels of rain defence effectiveness.
Heavy duty construction allows large panels to be produced with unbroken blades. Larger areas can be covered using multiple panel assemblies which will incorporate narrowline visible mullions.
Construction
From extruded aluminium sections, frame 3.0mm thick, blades 2.0mm thick. All frames to be of fully welded construction. Fitted as standard with rear galvanised steel bird mesh screen.
Size and Weight
From 600 x 600 to 3000 x 2000 in a single unit. Larger sizes are available in multiple units. Concealed rear mullions when width exceeds 1200mm.
Average weight: 25.0 kg/m2.
Average free area: 48%.
Spec with NBS chorus
50mm Double Bank Weather Louvres
