Proper care of your roof window is essential to ensure the best day-lighting experience. Get our best tips on how to clean, maintain and take care of your roof windows in this article.
Cleaning the air filter
The air filter can be removed and washed with ordinary household cleaners. Fully rotate and secure the window in cleaning position, then remove the filter from the filter rail. New filters are available from VELUX and be bought in the VELUX e-shop as part of our maintenance kits (ZZZ 220).
Cleaning the pane
For best results avoid cleaning skylight during the hottest part of the day. If there are multiple rows of skylights, start at the highest row and work down.To clean the outer pane, rotate the sash 180 degrees. The sash must be secured in position by sliding the barrel bolt into the bushing at the bottom of the side frame. This safety feature leaves both hands free for cleaning. Clean the pane with a soft, clean, lint-free cloth/chamois leather/nonabrasive sponge or a clean, non-metal window squeegee. Clean water will normally be sufficient for cleaning the pane. Ordinary, non-abrasive household cleaners can also be used. Soft water is best for cleaning panes. Therefore, in hard-water areas add a small amount of detergent to soften the water or wipe off all excess water after cleaning. The cleaning solution should immediately be removed with a squeegee or lint free cloth. Use care not to touch any metal parts of the cleaning equipment to the glass or let any abrasive materials be dragged across the glass surface. Do not use metal scrapers, blades or knives for cleaning large areas of glass as this practice can easily scratch and cause permanent damage to the skylight glass.
Cleaning the flashing
Rain will keep most dirt and grime off of the exterior surfaces. However, leaves and other debris should be re moved from the flashing around the window once per year to allow rain water to flow freely.
Snow and ice
Remove snow and ice to allow melt water to drain off from and around the window.
Condensation is usually more noticeable on roof windows and flat roof windows because warm, moist air rises to the ceiling. Particularly in rooms with high levels of humidity, condensation can form on the inner pane of the window. The problem, however, usually isn't the roof window. It’s the excess moisture in the room. Nevertheless, condensation can be minimised by fitting a radiator directly below the window and by airing the room frequently.