Sterling Triple Glazed Frameless Self Cleaning Skylight 400 x 400mm

This is a high-performance, non-opening frameless skylight. It is triple glazed with 6mm toughened, self-cleaning glass and a U Value of only 0.9 W/m Glazing Type: Triple Glazed 20 Years Warranty Internal Glass Size (QUOTED): 400 x 400 mm External Glass Size: 600 x 600 mm Top Glass Pane: 6mm BS EN 12150 Thermally Toughened Glass Spacer Type: 15mm Black Warm Edge Air Gap: 15mm 90% Argon Filled Middle Glass Pane: 4mm BS EN 12150 Thermally Toughened Glass Spacer Type: 15mm Black Warm Edge Air Gap: 15mm 90% Argon Filled Bottom Glass Pane: 44.2 Low E; BS EN 14449 Laminated Glass Self Cleaning: YES UV Protected: YES U Value: 0.9 W/m