Mardome Trade double glazed rooflights come with a kerb, dome and insulated PVC upstand. Available in clear, textured, opal and bronze, this Mardome Trade rooflight has clear glazing that contributes to great views above and out of the rooflight. Mardome Trade is the standard specification dome from Mardome, fitted with Marlon FSX Longlife polycarbonate thats impact resistant and 200 times stronger than glass. The double glazing on this Mardome Trade rooflight offers up to 98% UV protection to protect both residents inside and any furniture that might be in the sunlight. Thanks to this double glazing the centre of the pane achieves a u-value of 2.7 W/Mk. Mardome Trade rooflights feature a pristine white, multi-wall kerb that offers increased levels of insulation as well as clean lines and a stylish look from the inside and outside. Their robust kerb and specially designed kerb fit means you dont need timber fillets plus their factory fitted membrane clamps will hold the roofing membrane in place during installation.Upgrades for Mardome Opening rooflightsOpening Mardome Rooflights come with a 20-year warranty and the following upgrades:Powered OpeningPowered Opening With RemotePowered Opening With Remote & Rain SensorClear glazingClarity of vision of views and objects through the dome.Lighting effect: high visibility.Light transmission: 85%.Polycarbonate: double skin.Tint: clear.Suitable for a structural opening size of 900mm x 900mm.Please note this dome opens to a maximum of 30 Degrees and cannot be used as an access hatch.