The BSF70 HI achieves impressive U-values of 1.4 W/m²K with double glazing and 1.1 W/m²K with triple glazing, enhancing energy efficiency. Certified under the Secured by Design scheme and tested to PAS 24 standards, it ensures high security. Additional options include chamfered and square bead choices, glazing thicknesses ranging from 28mm to 44mm, and a variety of single or dual colour and anodised finishes.