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Glass Skylights


Cleaning and Maintenance Instructions: Glass Skylights

Click here for Acrylic Skylights

Safety should always be considered when cleaning your Columbia skylight. Skylights are not designed to support the weight of humans. Never try to stretch out to a surface for cleaning by leaning away from the ladder. Use safety equipment appropriate for the situation.


1. Flat glass – New no-drip or foaming formulas a good idea for skylights.
2. Vinyl Frame – Mild soap & water solution should be your first option.
3. Insect screens – Disengage from unit

  • Vacuum or brush off dust
  • Wash with soapy water and rinse off with hose

4. Other (stained wood, paneling, etc.) – verify effect of cleaning agents with all surfaces. Do not overspray, rather moisten cloth with the cleaner and pass over surface to be cleaned.


1. Glass glazing – same procedure as interior

  • Pine pitch & tar – citrus-based cleaners can often do a good job. (Do not use concentrated cleaning agents – dilute with water and test first on a small, inconspicuous area.)
  • Kerosene is OK if other methods don’t work.

2. Vinyl frame – same procedure as interior

3. Metal retainer frame

  • Soap & water, most household spray cleaners. (Keep away from plastic surfaces)
  • Car wax can be applied annually to maintain the original gloss of the retainer frame.
  • Clean any leaves, needles, or other debris from around the skylight every fall to minimize the chance for ice buildup in the winter.