Should Skylights Be Replaced When Re Roofing? Key Considerations and Benefits

When undertaking a major home improvement project like re-roofing, homeowners often face numerous decisions. One important question to address is: Should skylights be replaced when re-roofing? This decision can impact the overall effectiveness, cost, and longevity of both your roof and skylights. In this comprehensive guide, we will explore the reasons for and against replacing skylights during a re-roofing project, the benefits of doing so, and important factors to consider.

Should Skylights Be Replaced When Re Roofing

Why Consider Replacing Skylights When Re-Roofing?

Skylights provide natural light, enhance aesthetic appeal, and can improve energy efficiency in a home. However, like any other component of a house, they have a limited lifespan. Here are several reasons to consider replacing skylights during a re-roofing project:

1. Prevent Future Leaks

Over time, skylights can develop leaks due to wear and tear or improper installation. When re-roofing, it’s an opportune time to address potential leak issues. Installing new skylights with updated seals and flashing can prevent water damage and leaks, which are common problems with aging skylights.

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2. Enhanced Energy Efficiency

Modern skylights are designed with better insulation properties and energy-efficient glazing options. Replacing old skylights during a re-roofing project can improve your home’s energy efficiency, reducing heating and cooling costs. Energy-efficient skylights can also minimize heat gain in the summer and heat loss in the winter.

3. Aesthetic and Functional Upgrades

Advancements in skylight technology offer better designs, improved functionality, and more aesthetic options. New skylights can come with features like remote-controlled blinds, UV protection, and more durable materials. Replacing skylights can also provide an opportunity to enhance the natural light in your home and improve ventilation.

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4. Cost-Effectiveness

Replacing skylights while re-roofing can be more cost-effective than doing it separately. Combining both projects reduces labor costs, as the roofing contractors are already on-site. Additionally, it ensures that the roofing and skylight installations are coordinated properly, minimizing potential issues.

Factors to Consider When Deciding Whether to Replace Skylights

Deciding whether to replace skylights when re-roofing involves evaluating several factors. Each home and situation is unique, so it’s important to consider the following aspects:

1. Age of the Skylights

The average lifespan of a skylight is around 20-30 years, depending on the quality and materials used. If your skylights are nearing or exceeding this age, it’s advisable to replace them to avoid future problems.

2. Condition of the Skylights

Assess the current condition of your skylights. Look for signs of damage, leaks, condensation between panes, and other issues. If the skylights are in poor condition, replacing them during re-roofing is a prudent choice.

3. Compatibility with New Roofing Materials

Ensure that your existing skylights are compatible with the new roofing materials. Different roofing materials may require different types of flashing and sealing to ensure proper installation and leak prevention.

4. Budget Considerations

While replacing skylights adds to the overall cost of a re-roofing project, it can be more cost-effective in the long run. Consider your budget and weigh the potential cost savings of combining both projects versus the expense of addressing skylight issues separately in the future.

5. Personal Preferences and Goals

Consider your personal preferences and goals for your home. If you desire improved energy efficiency, better natural lighting, or modernized features, replacing skylights can help achieve these objectives.

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How to Replace Skylights When Re-Roofing

If you decide to replace your skylights during a re-roofing project, it’s essential to understand the process and ensure it’s done correctly. Here’s a step-by-step guide:

1. Choose the Right Skylights

Select skylights that fit your needs and preferences. Consider factors like size, style, energy efficiency, and additional features. Popular options include fixed skylights, ventilating skylights, and tubular skylights.

2. Coordinate with Roofing Contractor

Work closely with your roofing contractor to ensure proper coordination. The contractor should be aware of the skylight replacement and incorporate it into the overall re-roofing plan. This ensures seamless integration and avoids potential issues.

3. Remove Old Skylights and Prepare Openings

The first step is to carefully remove the old skylights and prepare the roof openings. This may involve removing shingles, flashing, and any other materials surrounding the skylights.

4. Install New Skylights

The new skylights should be installed following the manufacturer’s instructions and best practices. This typically involves securing the skylights to the roof, installing new flashing, and ensuring proper sealing to prevent leaks.

5. Install Roofing Materials

Once the new skylights are in place, the roofing materials can be installed around them. This includes applying shingles or other roofing materials, ensuring they are properly integrated with the skylight flashing.

6. Final Inspection and Testing

After installation, conduct a thorough inspection to ensure everything is properly installed and sealed. Test for leaks and ensure the skylights open and close correctly if applicable.

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Benefits of Replacing Skylights When Re-Roofing

Should Skylights Be Replaced When Re Roofing? Replacing skylights during a re-roofing project offers several significant benefits:

1. Seamless Integration

Replacing skylights during re-roofing ensures seamless integration of both components. The roofing contractor can properly align and seal the skylights with the new roofing materials, minimizing the risk of leaks and other issues.

2. Improved Energy Efficiency

New skylights with advanced glazing and better insulation properties can significantly improve your home’s energy efficiency. This results in lower heating and cooling costs and a more comfortable living environment.

3. Enhanced Aesthetics and Functionality

Modern skylights offer improved designs and features, enhancing the overall aesthetic and functionality of your home. You can choose skylights that better match your home’s style and provide additional benefits like UV protection and remote-controlled operation.

4. Increased Home Value

Upgrading to new skylights can increase your home’s value, making it more attractive to potential buyers. Energy-efficient and visually appealing skylights are desirable features that can set your home apart in the real estate market.


In conclusion, should skylights be replaced when re-roofing? The answer depends on several factors, including the age and condition of your existing skylights, compatibility with new roofing materials, budget considerations, and personal preferences. Replacing skylights during a re-roofing project offers numerous benefits, including preventing future leaks, improving energy efficiency, and enhancing the overall aesthetics and functionality of your home. By carefully considering these factors and working closely with your roofing contractor, you can make an informed decision that ensures the long-term performance and value of your roof and skylights.

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