Costs: Curtain wallings | Features

Specification options	Capital cost £/m²	Net present value for 60 years £/m²
Aluminium framed stick systems
Aluminium framing polyester powder coated to BS 6496	368	592
Aluminium framing anodised to BS 3987	373	609
Aluminium framing polyester powder coated to BS 6496 at 1.5 m centres horizontally	327	560
Aluminium framing polyester powder coated to BS 6496. Double glazed with low E glass	404	657
Aluminium framing polyester powder coated to BS 6496. Triple glazed 4-6-4-6-4 mm	475	745
Alternative framing options
Unitised aluminium framing polyester powder coated to BS 6496.	476	714
Stainless steel clad framing to BS EN 10088 grade 1.4301 (UK type 304). Double glazed with body tinted anti-sun glass	494	721

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