The Product...
Features
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Variations of Basic Unit
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Please Note:
Balanced units work on a spiral balance, this mechanism takes the weight of the "sash" making it very light to open and meaning that the "sash" will remain in any open position that you place it. On the non balanced version you take the weight of the "sash" and you engage a series of clips so that the "sash" can remain open, non balanced are fine for windows that you rarely open or are small in size, otherewise we recommend balanced units. Due to restrictions as a result of the spiral balance BVS units will not give you a full 50% clear opening where as VS units will give a full 50% clear opening.
If you require assistance call 01325 310520 or email info@secondaryglazing.com. Please Note: Quotations are only available via e-mail, however you can have as much technical advice via telephone from our technical department, who are always happy to help.
The Technical Information...
Specification
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Optimum Noise Reduction: 50dB (Rw) Using 6mm toughened primary glazing and 6.8mm acoustic laminate secondary glazing Optimum U Value: 1.868 W/m2K Using 4mm toughened Low E glazing, with 80mm glass-to-glass |
| Traditional | BVS |
|---|---|
| Configuration Based on 4mm Glass |  |
| Max width: | 1,500mm |
| or Max height | 3,000mm |
BVS - A0 Standard Technical Drawings (Up to 6.8mm glass)