How to Replace Skylight Domes

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Skylights bring in natural light and can even create a variety of ambient colors at different times of the day to a home. However, it does damage to your house when a skylight dome fails. Replacing a skylight dome can be done in one afternoon's time for the average do-it-yourselfer with the right tools while following the manufacturer's instructions.

Things You'll Need

  • Ladder
  • Tape measure
  • Safety glasses
  • Work gloves
  • Pry bar
  • Spirit level
  • Sealant, water-proof and silicon-based
  • Replacement roofing, as needed
  • Get the dimensions of the original skylight footing on the roof using a tape measure.

  • Search information on the Internet or visit a skylight retailer according to the measured dome base's size for the different available types of skylights. It will be a much simple job if you do not need to change the original size on the roof.

  • Select the type of dome you wish to replace. There are two types of domes you can purchase: site built and factory built. Factory built unit is generally better for guarding against weather, moisture build up and leakage due its tighter sealing properties.

  • Wear safety glasses and gloves. Use a pry bar to remove the original skylight dome by pulling back the roofing around the base of the dome. Watch out for flying debris.

  • Discard exposed mounting brackets under the removed roofing materials holding the skylight dome.

  • Install new mounting hardware and attach the new skylight dome per manufacturer's instructions. Double check with a spirit level that you have installed the replacement dome correctly before proceeding.

  • Caulk the area with silicon-based water-proof sealant where the dome and the roof meets. Let the sealant dry thoroughly before you repair the damaged area on the roof, if any, as a result of using the pry bar.

  • Apply another layer of the water-proof sealant where the dome and roof meets after you have replaced the damaged roofing around the base of the skylight. Clean up the work area on the roof.

  • Go inside your house and inspect the ceiling around the dome to make sure no problems exist. Check particularly for loose contacts and leaks around the dome's base on the inside.

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References

  • Photo Credit Ablestock.com/AbleStock.com/Getty Images
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