Snow & Ice

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Good Practice

• In cold areas it is possible for considerable amounts of snow and ice to accumulate on the roof.
• If the snow and ice is not removed, the alternation between warm and cold temperatures can cause a bank of snow or ice to form on or below the roof window. This bank of snow or ice may dam newly melted water and therefore cause water ingress around the windows as neither roof window nor roof surface are designed to cope with dammed up water.
• Whilst Keylite Roof Windows can be covered with snow and ice for long periods, it is imperative that melting snow and ice can always drain off from the roof windows and surrounding flashings.
• Snow and ice should therefore be removed from the areas on and around the roof window in the same way as leaves and other debris.
• Ensure all flashings and gutters are clean to allow water to melt and run away freely.