Single glazed = 4 mm float (5.8 Wm²K centre pane).
Double glazed = 4-6-4 = 14 mm units: (1.2 Wm²K centre pane).
Double glazed = 4-8-4 = 16 mm units: (1.1 Wm²K centre pane).
Vacuum glazed = 7.7 mm units: (0.7 Wm²K centre pane).
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British Fenestration Rating Council Window Energy Rating
B.
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Frame
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Wood species
Sapele., Accoya., Other.
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Finish as delivered
Primer and undercoat.
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Glazing or infill
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Standard
Relevant parts of BS EN 1279.
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Requirements
4 mm Float., 14 mm double glazed units., 16 mm double glazed units., 7.7 mm vacuum glazed units.
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Hardware
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Operation
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Type
Manual.
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Additional properties
Spacer
Black., White.
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Glazing bar
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Ventrolla Perimeter Sealing System (VPSS) location
Frame., Casement.
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Closing mechanism
Cords., Weights and pulleys., Spiral.
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Type
Single glazing., Slim double glazing., Double glazing., Vacuum glazing.