Designed with the same principles as our Flat Roof Windows. Excellent insulating value and sound reduction. Opening angle of approximately 60°. Polycarbonate cover designed simply to protect the double glazed unit below from rain and snow. Polycarbonate cover available in clear or opaque. Double glazed unit has a laminated inner pane for additional safety. Kerb & Sash made of extruded hard PVC profiles. Available in 3 sizes with kerb height of 150mm. Opens on gas arm struts.
The pane should be cleaned with a soft, clean, lint-free cloth or non-abrasive sponge. The rest of the window can be cleaned with ordinary household cleaners.
(--73) Float outer pane with low-e coating on the external pane and laminated iinner pane recommended by VELUX for additional safety.
Size Exterior Frame Roof Opening Visible Glass Lining Rebate W x H a x b e x f k x l 090120 1080 x 1380 900 x 1200 735 x 1035 859 x 1159 100100 1180 x 1180 1000 x 1000 835 x 835 959 x 959 120120 1380 x 1380 1200 x 1200 1035 x 1035 1159 x 1159
Pane variant Clear Opaque EN/ISO standard Thermal transmittance, Uw[W/m2K] 1.5 1.5 EN ISO 12567-2 Thermal transmittance for Dome 0.77 0.77 EN 1873 Sound insulation, Rw[dB] 37 37 EN ISO 10140-2 Rain noise sound intensity level LIA[dB] 47 47 EN ISO 140-18 Air permeability Class 4 Class 4 EN 12153 Luminous transmittance, τD65 0.70 0.21 EN 1873 Total solar energy transmittance, g 0.51 0.20 EN 410