ETR flashing for sloping extension installation
Benefits
Use original VELUX flashing sets for an efficient installation and superior result
Reduce heat loss and eliminate cold bridges with insulation collar BDX
Explore our productsCatalogues and brochuresProduct size chartRoof windowsStandard windowsWindow combinationsExtension elementsConservation windowsLow pitch windowsBalcony and terraceWindows for cold and uninhabited roomsSmoke ventilation windowsFlat roof windowsGlass rooflightStandard glass rooflightDome with glazingDome for uninhabited roomsRoof exit windowsSmoke ventilationSmoke exhaust and smoke exhaust/exitSun tunnelsSun tunnels for sloped roofSun tunnel installation productsInterior light controlBlindsBlinds for flat roof windowsInsect screensExterior heat protectionAnti-heat blackout blindAnti-heat blackout shutterAnti-heat blindControls and motorsOperations and controlsUpgrade kits for manual roof windowsAccessoriesFlashing and installation productsFlashingsInstallation productsLiningsDormersFrame extensions, trimmers and support raftersResources and trainingRoof window configuratorSection drawingsDaylight VisualizerEU GARAN labelsTraining for installersTraining for dealersBy professionInstallersDealersArchitectsHousebuildersPartner ProgrammeDealer ExtranetGet supportContact us