Is your Velux skylight leaking, difficult to open, or just not performing as it should? Don't despair! Many common skylight issues can be resolved with a bit of know-how and some simple troubleshooting. This guide will walk you through some of the most frequent problems Velux skylight owners face and provide practical tips for getting them fixed, saving you time and potentially expensive service calls.

My Skylight's Leaking! What Do I Do?

A leaking skylight is often the biggest worry for homeowners, and rightly so. Water damage can be costly and frustrating. Before you panic, let's investigate the common culprits:

  • Check the Flashing: The flashing is the metal that surrounds the skylight and seals it to the roof. This is usually the first place to check. Look for:
    • Cracks or damage: Over time, flashing can crack, rust, or become dislodged due to weather or roof movement. Carefully inspect the entire perimeter of the flashing.
    • Improper installation: If the flashing wasn't installed correctly in the first place, it's almost guaranteed to leak eventually. This is more common with DIY installations or inexperienced contractors.
    • Debris buildup: Leaves, pine needles, and other debris can accumulate around the flashing, trapping water and eventually leading to leaks.
  • Inspect the Skylight Seal: The seal between the skylight frame and the glass is another potential point of entry for water.
    • Dry rot or cracking: Look for signs of deterioration in the sealant. If it's brittle, cracked, or pulling away from the glass, it needs to be replaced.
    • Gaps: Even small gaps in the seal can allow water to seep through.
  • Roof Issues: Sometimes, the problem isn't the skylight itself, but the surrounding roof.
    • Damaged shingles: Shingles around the skylight can become damaged or missing, allowing water to penetrate and run down to the skylight.
    • Ice dams: In colder climates, ice dams can form around the skylight, pushing water up and under the flashing.
  • Condensation: Before assuming it's a leak, consider condensation. Especially in bathrooms or kitchens, warm, moist air can condense on the cooler glass of the skylight, creating the appearance of a leak.

How to Fix It:

  • Flashing Repair: Small cracks in flashing can often be sealed with roofing sealant. For more extensive damage, you may need to replace sections of the flashing. This is best left to a professional roofer.
  • Seal Replacement: Removing and replacing the sealant around the skylight can be a DIY project if you're comfortable working at heights. Use a high-quality exterior-grade sealant designed for skylights. Clean the area thoroughly before applying the new sealant.
  • Roof Repair: Repairing damaged shingles or addressing ice dam issues requires roofing expertise. Contact a qualified roofer for assistance.
  • Addressing Condensation: Increase ventilation in the room. Use exhaust fans in bathrooms and kitchens, and consider a dehumidifier.

Safety First: Always use appropriate safety precautions when working on your roof or skylight. Wear safety glasses, gloves, and a secure ladder. If you're uncomfortable working at heights, hire a professional.

My Skylight Won't Open (or Close!)

A stuck or malfunctioning skylight can be a real inconvenience, especially if it's a venting model. Here's what to check:

  • Manual Skylights:
    • Handle Mechanism: The handle mechanism can sometimes become stiff or jammed. Try lubricating the moving parts with a silicone-based lubricant.
    • Binding: Check for any obstructions that might be preventing the skylight from opening or closing smoothly. This could be debris, ice, or even a misaligned frame.
    • Operator Arm: Examine the operator arm (the metal arm that connects the handle to the skylight frame). Make sure it's not bent or damaged.
  • Electric/Solar-Powered Skylights:
    • Remote Control: The most obvious place to start!
      • Batteries: Replace the batteries in the remote control.
      • Pairing: Ensure the remote is properly paired with the skylight. Consult your Velux owner's manual for pairing instructions.
    • Power Supply: Check that the skylight is receiving power.
      • Circuit Breaker: Make sure the circuit breaker for the skylight hasn't tripped.
      • Wiring: Inspect the wiring connections to the skylight. Loose or corroded connections can cause problems.
    • Motor: The motor that operates the skylight may be faulty. Listen for any unusual noises when you try to open or close the skylight. If you suspect a motor problem, contact a Velux service technician.
    • Rain Sensor: Some electric skylights have a rain sensor that automatically closes the skylight when it detects rain. Make sure the sensor is clean and not obstructed.
    • Limit Switches: Limit switches tell the motor when the skylight has reached its full open or closed position. These can sometimes become misadjusted.

How to Fix It:

  • Lubrication: Applying a silicone-based lubricant to moving parts can often solve stiffness or binding issues.
  • Cleaning: Remove any debris or obstructions that might be interfering with the skylight's operation.
  • Remote Control Troubleshooting: Replace batteries, re-pair the remote, and ensure the remote is functioning correctly.
  • Electrical Troubleshooting: Check the circuit breaker, wiring connections, and power supply.
  • Professional Repair: If you suspect a motor problem, limit switch issue, or other complex mechanical or electrical fault, contact a Velux service technician.

Important Note: Working with electrical components can be dangerous. If you're not comfortable working with electricity, hire a qualified electrician.

My Skylight is Drafty

A drafty skylight can make your home uncomfortable and increase your energy bills. Here's what to look for:

  • Gaps in the Seal: As mentioned earlier, the seal between the skylight frame and the glass can deteriorate over time, creating gaps that allow drafts to enter.
  • Improper Installation: If the skylight wasn't properly installed, there may be gaps between the skylight frame and the roof opening.
  • Warped Frame: In rare cases, the skylight frame itself can warp due to age or extreme temperature changes, creating gaps.

How to Fix It:

  • Seal Replacement: Replacing the sealant around the skylight is the most common solution for drafty skylights.
  • Insulation: Adding insulation around the skylight frame can help to seal any gaps and reduce drafts.
  • Professional Inspection: If you suspect improper installation or a warped frame, contact a professional skylight installer for an inspection.

Condensation Problems

Condensation on your skylight can be a nuisance, and in severe cases, can lead to mold growth.

  • High Humidity: High humidity levels in your home, especially in bathrooms and kitchens, can contribute to condensation on skylights.
  • Poor Ventilation: Lack of proper ventilation can trap moisture in the air, increasing the likelihood of condensation.
  • Single-Pane Skylights: Older single-pane skylights are more prone to condensation than newer double-pane or triple-pane models.

How to Fix It:

  • Increase Ventilation: Use exhaust fans in bathrooms and kitchens to remove moisture from the air. Open windows to allow fresh air to circulate.
  • Dehumidifier: A dehumidifier can help to reduce humidity levels in your home.
  • Upgrade to Double-Pane or Triple-Pane Skylight: Consider upgrading to a more energy-efficient skylight with multiple panes of glass. These skylights have better insulation and are less prone to condensation.

Frequently Asked Questions

  • How often should I clean my Velux skylight? Clean your skylight at least twice a year, or more often if it's exposed to a lot of dirt or debris. Use a mild soap and water solution and a soft cloth or sponge.
  • How do I find my Velux skylight model number? The model number is usually located on a label on the skylight frame. Look for it near the handle or on the inside of the frame.
  • Can I replace the glass in my Velux skylight? Yes, you can replace the glass in your Velux skylight. Contact a Velux service technician or a glass replacement company for assistance.
  • My skylight is leaking during heavy rain. What should I do? Immediately inspect the flashing and seal for any obvious damage. If you can't find the source of the leak, contact a professional roofer or skylight installer.
  • How do I reset my Velux remote control? The reset procedure varies depending on the model of your remote control. Consult your Velux owner's manual for specific instructions.

In Conclusion

Troubleshooting your Velux skylight doesn't have to be daunting. By systematically checking the common problem areas and following these tips, you can often resolve issues yourself and keep your skylight functioning properly. When in doubt, don't hesitate to call in a professional for expert help and ensure the longevity of your skylight investment.