Use and Care Manual
Skylights, Roof Windows and Sun Tunnels 
Care and Maintenance Guide 
Below are some guidelines for care and maintenance of your VELUX Skylights, Roof 
Windows and Sun tunnels. Proper care of your VELUX Skylights, Roof Windows and 
Sun Tunnels will provide the best day-lighting experience. 
Contact your skylight installer or VELUX for possible maintenance help. 
In the USA, find an installer at: 
http://www.veluxusa.com/consumer/service/locators/skylight_installer_locator 
Safety 
•  Skylights and Sun Tunnels are typically installed out of reach, therefore it is 
assumed that ladders scaffolding or other equipment is being used to reach 
elevated places during maintenance and inspection. 
•  Follow all equipment manufacturers’ instructions for safe operation. 
•  Use fall protection when applicable. 
•  Know your safe working limits. 
•  Falls from heights can result in serious injury or death. 
Glass Cleaning 
•  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. 
•  Begin by soaking the skylight glass with a clean water and soap solution 
loosening dirt and debris. 
•  Next use a mild, non-abrasive glass cleaner along with a soft brush or other non-
abrasive applicator to clean the glass. 
•  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. 
•  Scratches or damages to the glass as a result of scraping are not covered under 
any VELUX warranty. 
•  For hard to remove spots like tree sap, label adhesive, paint or other construction 
material, a new 1” razor blade may need to be used on small spots only. 
•  If a razor blade needs to be used, scrape only in one direction. 
•  Back and forth scraping can trap abrasive materials under the blade causing 
scratches and possible permanent damage to the glass. 
•  Cleaning your skylight as dirt appears will help prevent the use of scrapers. 





