Product registration Find an installer Where to buy Brochures Contact Us Homeowner Professional Products Help & Advice Project Inspiration Installation products Product overview Installation instructions Extra protection and insulation Flashing Interior finish Professionals VELUX installation products The range of VELUX flashings and installation products make the professional installation of your roof windows quick, simple and safe. All original VELUX installation products are compatible to ensure that your roof window is weathertight and safe connected to the roof construction and has an excellent finish on the inside. Watch the installation Installation products 1 2 3 4 5 6 7 Original VELUX Flashings Underfelt collar BFX Water drainage gutter Insulation frame BDX Vapour barrier collar BBX Interior lining LSB / LSC / LSD Lining frame kit LSG Fit exact window dimensions and connect perfectly to your roofing material Pleated underfelt collar forms a tight seal between roof window and your felt underlay. Self-supporting drainage gutter ensures safe water drainage from above the window. Insulation frame with flexible foam for a tight and secure fit to the roof construction. Vapour barrier collar, including assembly tool for a vapour- and airtight solution. Prefabricated linings for easy and airtight inside completion. Includes vapour barrier collar. Easy-to-assem­ble, adjustable steel frame for fast and easy framing for your on-site lining. Includes vapour barrier collar. Standard or recessed installation VELUX New Generation roof windows offer two installation heights, standard or recessed. The recessed installation provides a sleek, streamlined appearance, sitting 40 mm deeper in the roof structure, and provides architects with greater design flexibility. To ensure maximum probability that the declared energy performance is achieved, we recommend installation of the roof window with flashing for recessed installation. When installed with the appropriate VELUX insulation collar, recessed installations result in saving more energy. Standard installation Recessed installation Read more about recessed installation Flashing Remember to order the correct flashing for your roof window installation Your new VELUX roof window must be installed with a flashing. VELUX flashings are precision-made and designed to ensure a watertight seal between the roof window and the roofing material and ensure safe and effective water drainage. You can choose among different versions and combinations of flashings to match your roof window and roofing material. More details on VELUX flashings Extra insulation and protection Optimise your new roof window to ensure an energy-efficient and durable installation. You can choose the frame insulation product BDX, which ensures proper insulation between the roof construction and the window frame, and the pleated underfelt collar BFX, which ensures a flexible and tight connection between the underfelt and the window frame. The drainage gutter ensures that water from the underfelt above can drain away from the window. Download prices and sizes for extra insulation and protection of your roof window Download brochure B1: Insulation frame B2: Drainage gutter B3: Pleated underfelt collar Excellent interior finish Use VELUX linings to optimise the finish in your room. We recommend the pre-fabricated VELUX linings LSB/LSC/LSD with sharp lines to match contemporary styles. The linings are made in water- and moisture-repellent materials with a white finished surface treatment. The unique design creates space for extra insulation material to prevent thermal bridges. Alternatively, VELUX kit for lining LSG forms a perfect structure for shaping your own plasterboard lining. The unique design creates space for extra insulation material to prevent thermal bridges. Both VELUX linings and VELUX kit for lining are delivered with VELUX vapour barrier collar BBX, which is 100% vapour-tight and prevents condensation. Download prices and sizes for interior finish. Download brochure C1: Lining frame LSG C2: Vapour barrier collar BBX Interior lining LSB / LSC / LSD Excellent and perfect interior finish Professional information Are you an installer or a dealer – follow the tab Professionals at the bottom of the page to find more information about the product such as CE marking, installation instructions, spare part overviews, test reports and specifications. See here Homeowner Professionals The VELUX Group Products Price calculator Roof windows Modular Skylight systems Flat roof windows Sun tunnels Blinds and Shutters Accessories Vario by VELUX CE/UKCA marking Customer Care Contact Us Where to buy Buy direct online Find an installer Brochures VELUX Guarantee Product Pane Warning Product registration Service and maintenance About VELUX COVID-19 response News VELUX careers Our Company Legal notice Privacy Policy Cookie-policy V-GB Tax strategy VUK Tax strategy Modern slavery act Gender Pay Gap Report 2017 Gender Pay Gap Report 2018 Contact VELUX Company Ltd Woodside Way Glenrothes Fife Scotland KY7 4ND Tel: 01592 778225 Email: sales@velux.co.uk Find us here: