Skylight Leaking When Raining in Denver – Expert Diagnosis and Permanent Repair

Fixing a leaky skylight costs between a few hundred dollars for simple resealing to several thousand for full replacement. Resealing runs lower when the flashing is intact. Replacing damaged flashing costs more because shingles must be removed and reinstalled. If the skylight pane is cracked from hail, common in Denver, expect higher costs for a new unit. Labor is the biggest factor since skylight work requires removing roofing materials and ensuring watertight integration. Get multiple quotes and ask if they include matching your existing shingle color and type. Costs vary by skylight size and roof pitch.

Rain leaks are covered by homeowners insurance only if sudden and accidental damage caused them. If hail cracked your skylight or wind tore off flashing, you likely have coverage. Gradual deterioration from age and poor maintenance is not covered. Insurance adjusters look for evidence of neglect like rotted wood or years of water staining. Document damage with photos immediately after storms. Denver homeowners should review their policy for wind and hail coverage limits since both are common here. File claims quickly because insurers have strict reporting windows. Expect them to send an inspector before approving repairs.

The most common cause of skylight leaks is failed flashing where the skylight curb meets the roofing material. Flashing is the metal or rubberized barrier that channels water away from the opening. Improper installation during the original roof job means water runs under shingles instead of over flashing. Denver's temperature swings expand and contract metal flashing, opening gaps over time. Sealant cracks from UV exposure and freeze-thaw cycles. Debris buildup around the curb traps moisture against seals. Addressing flashing failure early prevents rot in the roof deck and ceiling joists below.

The best sealant for a leaking skylight is polyurethane or elastomeric roofing caulk designed for exterior use and UV resistance. These products remain flexible through temperature changes and adhere to metal flashing, glass, and roofing materials. Avoid cheap silicone caulk because it degrades quickly under Denver's intense sun and altitude. Some professionals use peel-and-stick flashing tape for skylight curbs because it conforms to irregular surfaces. Whatever product you choose, clean the surface completely before application and apply during dry weather above 50 degrees. Quality sealant lasts three to five years before reapplication is needed.

No, not all skylights eventually leak if installed correctly and maintained. Quality skylights with proper flashing integration can last decades without leaks. The key is regular inspection and resealing before small issues become failures. Denver's climate is hard on skylights because UV rays degrade sealant and freeze-thaw cycles stress materials. Cheap skylights or poor installation guarantees problems within years. Curb-mounted skylights generally outlast flush-mounted models because they shed water better. Clear debris seasonally and inspect flashing after hail storms. Proactive maintenance prevents most leaks. If your skylight is over 20 years old, consider replacement before failure happens.

The average skylight lifespan is 15 to 25 years, depending on quality and maintenance. Acrylic domes yellow and crack faster than tempered glass, especially under Denver's high UV exposure. Metal flashing lasts longer than rubber gaskets, which dry out and split. Proper installation with integrated flashing extends life significantly. Cheaper skylights fail around the 10-year mark, while premium brands with impact-resistant glass last 30 years or more. Denver's hail is a wildcard that can shorten lifespan unpredictably. Inspect your skylight annually for cracks, discoloration, and seal degradation. Plan for replacement when you reroof to ensure proper integration.