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How to measure for a replacement skylight

How to measure for a skylight replacement

How to measure for a replacement skylight

Replacing a skylight can enhance your home’s natural lighting and energy efficiency. Accurate measurements are crucial to ensure a proper fit and avoid future problems. Here’s a step-by-step guide to help you measure for a replacement skylight.

Tools You’ll Need:

  • Tape measure
  • Ladder (if necessary)
  • Notepad and pen
  • Camera (optional)

Steps to Measure Your Skylight:

  1. Safety First:
    • Ensure you have a stable and secure ladder.
    • If your skylight is located on the roof, consider the weather conditions and your safety equipment.
  2. Measure the Interior Opening:
    • From inside your home, measure the length and width of the skylight opening. This is the visible glass area, not including any trim or flashing.
    • Record these measurements. This step ensures that the new skylight will fit the existing opening.
  3. Measure the Exterior Curb:
    • If your skylight is curb-mounted, measure the outside dimensions of the curb. Measure from the outer edge to the outer edge of the curb.
    • Note the height of the curb as well. Standard heights usually range from 4 to 6 inches.
  4. Measure the Roof Opening:
    • For deck-mounted skylights, you need to measure the roof opening. This involves measuring the length and width of the cut-out in the roof deck.
    • These measurements will be larger than the interior opening due to the skylight frame and flashing.
  5. Check the Skylight Brand and Model:
    • If possible, identify the brand and model of your existing skylight. This information can often be found on a label on the skylight frame. Knowing this can help in finding a matching replacement.
  6. Photograph the Skylight:
    • Take clear photos of your current skylight from both the interior and exterior. This can help you or a professional compare features and ensure compatibility.
  7. Consult Manufacturer Specifications:
    • Once you have your measurements, consult the skylight manufacturer’s specifications to find a replacement that matches your dimensions.
    • Manufacturers often provide detailed size charts that correlate to their product lines.

Additional Tips:

  • Consider Professional Help: If you are unsure about taking accurate measurements or if the skylight is in a difficult-to-reach location, consider hiring a professional. Incorrect measurements can lead to improper fitment and potential leaks.
  • Energy Efficiency: When selecting a replacement skylight, consider energy-efficient models that offer better insulation and UV protection. Look for ENERGY STAR® rated products.
  • Skylight Type: Ensure you select the correct type of skylight—whether it’s fixed, vented, tubular, or another type. Each type has different measurement requirements and installation processes.

By following these steps, you can ensure that you get the right size replacement skylight for your home, office or commercial building, ensuring a seamless fit and long-lasting performance. Happy measuring!

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