Skylight Standing Seam Roof Install Guide: Read Before!

Skylight Standing Seam Roof Install Guide: Read Before!

This guide provides a detailed walkthrough for installing a VELUX skylight on a standing seam roof. Reading this before you begin will help ensure a successful and leak-free installation. This process requires careful planning and execution, so follow these steps meticulously.

1. Understanding VELUX Skylights and Standing Seam Roofs

It’s crucial to understand the compatibility and potential challenges of integrating a VELUX skylight with a standing seam roof.

1.1. What is a Standing Seam Roof?

A standing seam roof is a metal roofing system characterized by vertical metal panels that are joined together with raised, interlocking seams. This design eliminates exposed fasteners, minimizing the risk of leaks and creating a clean, modern look. The seams run vertically from the ridge to the eave of the roof.

1.2. Why VELUX Skylights?

VELUX skylights are known for their quality, durability, and leak-proof design. They offer various features like different glazing options, remote controls, and blinds. Choosing a VELUX skylight provides peace of mind regarding long-term performance. For standing seam roofs, specific flashing kits or custom solutions are often necessary for proper integration.

1.3. Compatibility Considerations

• Panel Profile: Not all standing seam profiles are the same. You need to confirm that the skylight flashing kit (if one exists for your skylight and roof type) is designed for your specific seam profile.
• Roof Pitch: The roof pitch affects the skylight’s performance and the amount of water runoff. VELUX skylights usually have a minimum and maximum pitch requirement.
• Local Building Codes: Always check local building codes and regulations regarding skylight installation, especially concerning flashing and structural support.

2. Pre-Installation Preparation

Thorough preparation is essential for a smooth and efficient installation.

2.1. Gathering Materials and Tools

Ensure you have all the necessary materials and tools on hand. This includes:

• VELUX Skylight: Choose the appropriate size and type for your needs.
• VELUX Flashing Kit: Critical for a watertight seal. Verify it’s compatible with your standing seam roof profile. If no ready-made kit exists, you will need to create a custom flashing solution.
• Standing Seam Roof Clips: For securely attaching the skylight flashing to the roof panels without penetrating them.
• Sealant: High-quality sealant designed for metal roofing.
• Measuring Tape: For accurate measurements.
• Pencil or Marker: For marking cut lines.
• Metal Cutting Tools: Shears, nibblers, or a specialized metal cutting saw. Avoid abrasive blades, which can damage the metal coating.
• Drill/Driver: For installing screws.
• Safety Glasses: Protect your eyes from debris.
• Gloves: Protect your hands.
• Ladder and Safety Harness: Ensure safe access to the roof.
• Level: For ensuring the skylight is installed level.

2.2. Inspecting the Roof

Before starting, inspect the area where the skylight will be installed.

• Check for damage: Look for any signs of rust, corrosion, or leaks.
• Ensure structural integrity: Verify that the roof decking is in good condition and can support the skylight’s weight.
• Locate rafters: Determine the location of the rafters to ensure proper support for the skylight frame.

2.3. Measuring and Marking

Accurate measurements are crucial for a proper fit.

1. Determine the desired location for the skylight.
2. Measure the outer dimensions of the skylight frame.
3. Mark the cut lines on the roof using a pencil or marker, adding extra space for the flashing.
4. Double-check your measurements before cutting.

3. Cutting the Roof Opening

This is a critical step that requires precision and care.

3.1. Cutting Techniques

• For Metal Roofing: Use a metal cutting saw, shears, or nibblers to carefully cut along the marked lines. Avoid using abrasive blades, as they can damage the metal coating and void warranties.
• Cutting the Decking: Once the metal is cut, carefully cut through the roof decking to create the opening.

3.2. Framing the Opening

The skylight needs a solid frame for support.

1. Install framing around the perimeter of the opening using lumber that matches the thickness of the rafters.
2. Ensure the frame is level and securely attached to the rafters.
3. The framing should be sized to match the dimensions of the skylight frame.

4. Installing the Skylight and Flashing

This is the core of the installation process.

4.1. Installing the Skylight

1. Carefully lift the skylight into the framed opening.
2. Ensure it is centered and level.
3. Secure the skylight frame to the framing using appropriate screws.

4.2. Installing the Flashing

This is where the standing seam roof presents unique challenges. Standard flashing kits often won’t work without modification, or require a custom solution.

• Using a Compatible VELUX Flashing Kit (If Available): Follow the manufacturer’s instructions carefully. The kit will usually involve specially designed flashing pieces that interlock with the standing seams.
• Creating a Custom Flashing Solution: If a compatible kit isn’t available, you’ll need to fabricate custom flashing pieces from sheet metal. This is best left to experienced professionals. This involves:
  • Measuring the gap between the skylight frame and the standing seams.
  • Cutting sheet metal to the appropriate size and shape.
  • Bending the metal to create a watertight seal.
  • Using sealant and standing seam roof clips to attach the flashing to the roof panels without penetrating them.

4.3. Securing the Flashing

• Standing Seam Roof Clips: Use standing seam roof clips to attach the flashing to the roof panels. These clips grip the seams without requiring drilling or screws, preserving the integrity of the roof.
• Sealant Application: Apply a generous bead of sealant along all edges of the flashing to create a watertight seal. Ensure the sealant is compatible with metal roofing materials.

5. Final Steps and Inspection

Completing the installation and ensuring a watertight seal.

5.1. Cleaning and Sealing

• Remove any debris from the roof and the skylight.
• Apply a final bead of sealant around the perimeter of the flashing.
• Check for any gaps or openings that could allow water to penetrate.

5.2. Testing for Leaks

• Use a garden hose to thoroughly wet the area around the skylight.
• Inspect the interior for any signs of leaks.
• Address any leaks immediately by applying more sealant or adjusting the flashing.

5.3. Interior Finishing

• Once the exterior is complete, finish the interior around the skylight by adding drywall, trim, or other finishing materials.

6. Troubleshooting Common Issues

Addressing potential problems during and after installation.

6.1. Leaks

• Cause: Improper flashing, inadequate sealant, damaged roof panels.
• Solution: Re-apply sealant, replace damaged flashing, repair damaged roof panels, ensure proper flashing installation technique.

6.2. Condensation

• Cause: High humidity inside the building, inadequate ventilation.
• Solution: Improve ventilation in the building, consider a skylight with improved insulation.

6.3. Noise

• Cause: Wind vibration, loose flashing.
• Solution: Secure flashing properly, add sound dampening materials.

7. Safety Precautions

Prioritizing safety during the installation process.

• Wear safety glasses and gloves at all times.
• Use a ladder and safety harness when working on the roof.
• Be aware of your surroundings and potential hazards.
• Follow all manufacturer’s instructions carefully.
• If you are not comfortable working on the roof, hire a qualified professional.

8. Maintenance and Care

Ensuring the longevity of your skylight and standing seam roof.

• Regularly inspect the skylight and flashing for damage or leaks.
• Clean the skylight glass with a mild detergent and water.
• Trim any branches that overhang the skylight.
• Consult with a professional roofer for any major repairs.

Alright, you’ve got the lowdown on getting that velux skylight standing seam roof installed right. Hopefully, this guide has cleared things up and given you the confidence to tackle the project! Remember, a little prep goes a long way, so double-check everything before you start. Happy building!