Why Skylights Matter During Roof Work
When replacing a roof, many homeowners wonder whether their skylights need attention too. Since skylights are integrated into the roofing system, it’s essential to assess their condition to avoid future leaks or damage.
Types of Skylights
Affected Skylights come in a few main types, each of which responds differently during roof replacement:
Fixed skylights: These do not open and are typically more watertight.
Vented skylights: Can be opened manually or mechanically, making them more vulnerable to wear over time.
Tubular skylights: Small, compact, and designed to diffuse light; often used in smaller rooms or hallways.
Understanding the type you have will help determine if replacement is necessary.
Should You Replace or Reuse?
If your skylights are less than 10 years old and in good working condition, you may be able to reuse them. However, if they show signs of damage—such as fogging, leaks, or worn-out seals—it’s safer and smarter to replace them during roof installation. This prevents future issues and avoids disturbing new roofing work later.
Cost Efficiency of Replacing Both
Replacing skylights while your roof is already being worked on is more efficient and cost-effective. Since the roofing crew is already on-site and materials are being removed, adding skylight replacement doesn’t significantly increase labor costs. Plus, it avoids having to cut into a brand-new roof later.
Risks of Keeping Old Skylights
Keeping older skylights during a roof replacement can lead to problems such as: Leaks from aged seals and improper flashing Condensation inside the glass, leading to mold or mildew Void warranties, as some manufacturers require full system replacement Aesthetic mismatch with newer roofing materials
What Your Contractor Should Inspect
Your contractor should carefully evaluate whether the existing skylights are suitable to stay or need replacement during the roofing process. This includes assessing the age and warranty status of the skylight, checking for any signs of leaks, moisture, or internal fogging, and inspecting the frame and flashing for wear or corrosion. The skylight must also be evaluated for structural compatibility with the new roofing materials. A professional inspection of these elements ensures reliable performance and helps avoid future roof and skylight failures. Age and warranty of existing skylights Interior water damage or signs of fogging Frame and flashing condition Structural fit with new roofing
Make the Smart Choice
Although replacing skylights during a roof replacement isn’t always required, it often proves to be the smartest and most cost-effective decision. Addressing both at once ensures long-term performance, protects your investment, and prevents future headaches caused by aging skylights.