Adding a skylight can completely transform a space, flooding it with natural light and improving ventilation. However, before you start cutting into your roof, there are several important factors to consider to ensure a smooth and leak-free skylight installation. From choosing the right skylight to ensuring proper waterproofing, careful planning is key.
Installing a skylight is not a quick, five-minute job, nor is it something a beginner should attempt. Beyond the structural considerations of cutting into the roof, there’s also the interior finishing—plastering, painting, and sealing—to ensure a polished, professional result. All this to say, here are some key factors to consider when choosing the right skylight for your home.
Choosing the Right Skylight for Your Home
Not all skylights are created equal, and selecting the right one can make a huge difference in performance and durability.
● Fixed vs. Ventilated Skylights – A fixed skylight is ideal if you’re looking to maximise natural light without additional ventilation, while a ventilated option helps with airflow, reducing moisture and heat buildup. Brands like Velux skylights offer high-quality options in both categories, ensuring excellent insulation and long-term performance.
● Glass vs. Acrylic – Glass skylights provide superior insulation and durability, while acrylic alternatives tend to be more lightweight and affordable.
● Roof Compatibility – The pitch and material of your roof determine which type of skylight will work best. Some options are better suited for sloped roofs, while others are designed for flat roofs.
Strategic Skylight Placement Matters
Proper placement ensures you get the most out of your skylight installation while avoiding potential structural issues.
● Sun Orientation – A north-facing skylight provides consistent natural light, while east- or west-facing options capture morning or afternoon sun.
● Structural Considerations – It’s essential to check your rafter layout before cutting into the roof. Professional installers can assess your structure and ensure a secure installation.
● Room Selection – Installing a skylight in bathrooms or kitchens helps with ventilation, while bedroom skylights create a bright and airy space.
Avoiding Common Skylight Installation Mistakes
A poorly executed skylight installation can lead to leaks, insulation problems, and costly repairs. These are three of the most common skylight installation pitfalls we see:
1. Improper Flashing – Flashing prevents water from seeping into the roof. Poor flashing can lead to leaks and structural damage.
2. Incorrect Sealing – A skylight must be properly sealed to prevent draughts and moisture buildup.
3. DIY Installation Without Expertise – While a DIY approach might seem cost-effective, working with professionals like Suntrenz Skylights ensures a leak-free, high-quality installation.
Is Your Roof Ready for a Skylight?
Before installing a skylight, assess the condition of your roof. If your roof is aging or damaged, it’s best to address your roof repairs first. Installing a Velux skylight, or any other brand, on a weak or deteriorating roof can lead to long-term issues, so ensuring a strong, well-maintained roof is key to long-lasting performance.
Final Thoughts: Trust the Experts for Your Skylight Installation
A well-planned skylight installation can enhance your home’s natural light, ventilation, and energy efficiency. However, cutting into your roof without proper planning can result in costly structural issues. Choosing the right skylight, planning the placement carefully, and working with an experienced skylight installer ensures a beautiful, long-lasting result.
Author Bio: Jordan Buchan, Suntrenz Skylights
Jordan Buchan is the co-owner of Suntrenz Skylights, New Zealand’s skylight experts. With over 30 years of experience, Jordan and his team specialise in sun tubes, skylights and roof ventilation systems. Jordan and his team are committed to excellence and delivering top-notch results for every project.
