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VR

Technical Information

Impact Safety Test

No information available yet.

Thermal Insulation

 
  Thickness of operable flaps in mm
  1.5 6 10 16 16k 20 24 25k 30 60 60+ spc
Single skin aluminium 5.6                      
Glass   5.1                    
Polycarbonate     3.1 2.3 2 1.8   1.7        
Insulated glass standard           3 2.9   2.8      
Insulated glass type HR           2 1.8   1.6      
Double skin aluminium     1.9     1.8       0.45 0.4 0.4
K-values in W/m²k                        

Sound Reduction

  Thickness of blade material in mm
  1.5 6 10 16 16k 20 24 25k 30 60 60+ spc
Single skin aluminium 6                      
Glass                        
Polycarbonate     17 21 21 21   22        
Insulated glass standard           32 35   37      
Insulated glass type HR           32 35   37      
Double skin aluminium           22     28   38 42
Rw-value in dB
according ISO 717		                        

Transparency

    Main Clear Opal
Glass 6 mm 90%    
Insulated Glass 20/24/25/30mm 90%    
Polycarbonate 10 mm   80% 48%
Polycarbonate 16 mm   76% 48%
Polycarbonate 20 mm   64% 37%
Polycarbonate 25 mm   44% 24%
         

Air Capacity

The VR has a CV-value of 0.65.The VR has a CV-value of 0.65.

Snow Load

According BS7346: Part 1: 1990 standards the uninsulated VR can carry a snow load up to 125 N/m². The insulated types can carry a snow load of 300 N/m². These values are applicable with an opening of 30° or less.

Temperature Resistance

Standard minimum -20°C and maximum +70°C.

Rain Defence

The VR is waterproof in closed position, according the standards of BS7346: part 1: 1990 Clause 5.3.

Wind Resistance

The VR meets the standards of BS7346: part 1: 1990 and opens successfully with a side wind of 18 m/s (Clause 5.6).
See also:

> VR Specification
< VR General Information
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