This guide provides a basic overview of installing VELUX skylights using appropriate flashing. Proper flashing ensures a tight, watertight seal. Always refer to the specific VELUX instructions included with your flashing kit.
Understanding Velux Flashing Kits
VELUX flashing kits are essential components for the proper installation of VELUX roof windows and skylights. They create a weathertight seal between the roofing material and the window, preventing water ingress and ensuring long-term performance. Understanding the purpose and types of flashing kits is crucial for a successful installation. Selecting the correct kit depends on the roofing material.
Flashing kits are designed to integrate seamlessly with various roofing types, including shingles, tiles, and metal. Each kit is engineered to provide optimal water drainage and protection against the elements. Correct installation, following the manufacturer’s instructions, is paramount to maintaining the integrity of the roof and preventing leaks. Using the wrong flashing can lead to significant problems.
Purpose of Flashing Kits
The primary purpose of a VELUX flashing kit is to create a watertight seal between the VELUX window or skylight and the surrounding roofing material. This seal prevents water from entering the building, protecting the interior from water damage, mold growth, and structural issues. Flashing kits are designed to withstand various weather conditions, including rain, snow, and wind, ensuring long-term protection.
In addition to preventing water ingress, flashing kits also help to manage water runoff, directing it away from the window and preventing it from pooling on the roof. This is particularly important in areas with heavy rainfall or snow. Furthermore, proper flashing installation contributes to the overall energy efficiency of the building. By preventing air leaks around the window, flashing helps to maintain a consistent indoor temperature.
Types of Flashing Kits (EDW, EDL, EDT, EDZ)
VELUX offers a range of flashing kits designed for different roofing materials and installation scenarios. The EDW flashing kit is for profiled roofing materials like tiles. It ensures a watertight seal. The EDL flashing kit is designed for flat roofing materials, providing a low-profile and seamless integration.
The EDT flashing kit is specifically for flat tiles, accommodating tile thicknesses between 15mm and 40mm. Finally, the EDZ flashing kit is intended for single tiles, offering a customized fit for individual tile installations. Each flashing kit is engineered to provide optimal performance and durability, ensuring long-lasting protection against water damage. Selecting the correct flashing kit for your roofing material is essential for a successful and leak-proof installation.
Identifying the Correct Flashing Kit
Choosing the right VELUX flashing kit is crucial for a successful and watertight skylight installation. Start by identifying your roofing material. Is it profiled like shingles or tiles, or is it flat? For profiled materials, the EDW flashing kit is generally the correct choice. For flat materials, consider the EDL flashing kit.
If you have flat tiles, the EDT flashing kit is specifically designed for this purpose, accommodating varying tile thicknesses. For single tile installations, the EDZ flashing kit offers a tailored fit. Consult the VELUX website or your local dealer for detailed compatibility charts. This will ensure you select the perfect flashing kit for your specific roof and skylight combination. Correct identification is key to preventing leaks and ensuring long-term performance.
Pre-Installation Preparation
Before you begin, gather all necessary tools and materials. Review safety precautions. Carefully check your roof’s pitch to confirm compatibility. Thorough preparation ensures a smooth and safe installation process.
Tools and Materials Required
Successful VELUX flashing kit installation necessitates having the right tools and materials readily available. Essential tools include a hammer, measuring tape, utility knife, and a nail gun or screw gun, depending on your roofing material. You’ll also need appropriate safety glasses and gloves to protect yourself during the process.
Furthermore, ensure you have sealant recommended by VELUX, as well as roofing nails or screws designed for your specific roofing type. A pry bar will be helpful for removing existing shingles or tiles. Don’t forget a level to ensure proper alignment.
Having a circular saw or jigsaw can assist in modifying roofing material if needed. Finally, a ladder and appropriate safety harnesses are crucial for accessing the roof safely and effectively during the installation. Always consult the specific instructions included with your VELUX flashing kit for any additional requirements.
Safety Precautions
Prioritizing safety is paramount when installing VELUX flashing kits. Always wear safety glasses to shield your eyes from debris and gloves to protect your hands from sharp materials. When working on a roof, use a secure ladder that extends at least three feet above the roofline. Employ proper ladder safety techniques, ensuring it is stable and on level ground.
If the roof is steep or slippery, utilize a safety harness attached to a secure anchor point. Be mindful of weather conditions; avoid installation during rain, snow, or high winds. Clear the work area of any obstructions to prevent trips or falls.
Inform others of your work location and schedule. Disconnect any nearby power lines to prevent electrical hazards. Carefully read and understand all safety instructions provided with the VELUX flashing kit and any power tools you are using. With diligent adherence to these precautions, you can significantly minimize the risk of accidents during the installation process.
Checking Roof Pitch and Compatibility
Before commencing any installation, accurately determine your roof’s pitch. This measurement is crucial for selecting the correct VELUX flashing kit. Refer to the VELUX documentation for guidance on measuring roof pitch. Some kits are designed for specific pitch ranges. Using the wrong kit can compromise weather tightness.
Next, verify compatibility between the flashing kit, the roofing material, and the skylight model. VELUX offers various flashing options tailored to different roofing materials like shingles, tiles, and metal. The selected flashing must be designed for your specific roofing type.
Consult the VELUX compatibility charts or contact their customer service to ensure a proper match. Failure to do so could result in leaks and damage to your roof. Double-check the skylight model number against the flashing kit’s specifications. This step prevents issues arising from mismatched components and ensures a successful, watertight installation.
Step-by-Step Installation Guide
Follow these steps for proper flashing installation: prepare the roof opening, install underlayment collar, position flashing elements, secure flashing to the roof, and integrate with roofing material for a watertight seal.
Preparing the Roof Opening
Accurately measure and mark the roof according to the skylight and flashing kit dimensions. Cut the opening carefully, ensuring it is square and true to size. Avoid cutting any rafters or structural supports unless absolutely necessary, and consult a professional if structural modifications are required.
Remove all debris, such as shingles, nails, and underlayment, from the opening area. Inspect the surrounding roofing material for any damage or rot and repair as needed. Ensure the sheathing around the opening is solid and provides a secure base for the flashing.
Consider the roof pitch and the type of roofing material when preparing the opening. For steeper roofs, you may need to create temporary supports to prevent the skylight from sliding during installation. For certain roofing materials, you may need to modify the opening slightly to accommodate the flashing’s specific design.
Double-check all measurements and ensure the opening is properly aligned before proceeding to the next step. A well-prepared opening is crucial for a successful and leak-proof skylight installation.
Installing the Underlayment Collar (if applicable)
An underlayment collar provides an extra layer of protection against water intrusion. Center the underlayment collar around the prepared roof opening. Ensure it extends evenly on all sides, typically a few inches beyond the opening’s edge.
Secure the collar to the roof deck using roofing nails or staples. Follow the manufacturer’s instructions for the recommended fastening pattern. Apply roofing sealant beneath the collar where it overlaps the existing underlayment to create a watertight seal.
Carefully trim the underlayment collar around the roof opening, leaving a slight overhang that will be tucked under the skylight flashing. This overhang helps to direct water away from the opening and prevents leaks.
Inspect the installed underlayment collar for any gaps or wrinkles. Ensure it is securely fastened and properly sealed to the roof deck. Address any imperfections before proceeding with the flashing installation.
The underlayment collar acts as a critical barrier against moisture, so its proper installation is essential for a long-lasting, leak-free skylight installation. Pay close attention to detail and follow the manufacturer’s guidelines carefully.
Positioning the Flashing Elements
Carefully unpack all flashing elements from the kit. Identify each piece according to the instructions. Begin by positioning the bottom flashing element along the lower edge of the skylight frame, ensuring it sits flush against the roofing material.
Next, install the side flashing elements, overlapping them correctly with the bottom flashing. Pay attention to the designated overlap lines or markings on the flashing to ensure proper water drainage.
Position the top flashing element, overlapping it with the side flashings. Ensure a secure and weather-tight connection at all joints. Use a level to verify that all flashing elements are aligned correctly and sitting flat against the roof surface.
Double-check the positioning of each element against the skylight frame and roofing material. Make any necessary adjustments before securing the flashing permanently.
Proper positioning of the flashing elements is crucial for directing water away from the skylight and preventing leaks. Take your time and follow the manufacturer’s instructions precisely to ensure a successful and watertight installation.
Securing the Flashing to the Roof
Once the flashing elements are correctly positioned, begin securing them to the roof. Use roofing nails or screws, as specified in the flashing kit instructions. Apply sealant or caulk to the underside of the flashing where it meets the roofing material to create a watertight barrier.
Start by securing the bottom flashing element, working your way up to the side and top pieces. Ensure that each nail or screw is driven in straight and flush with the flashing surface.
Avoid over-tightening the fasteners, as this can damage the flashing or distort its shape. Maintain consistent spacing between fasteners to ensure even pressure and a secure hold.
Pay special attention to the overlap areas, securing them firmly to prevent water penetration. Apply additional sealant to any gaps or seams to enhance the watertight seal.
After securing all flashing elements, inspect the installation carefully. Ensure that there are no loose or protruding fasteners; Touch up any areas with sealant as needed to create a complete and reliable weather barrier.
Integrating with Roofing Material (Shingles, Tiles, Metal)
The key to a successful Velux flashing installation is proper integration with the existing roofing material. This ensures a watertight seal and prevents leaks. The specific method varies depending on the roof type.
Shingles: Weave the flashing pieces between the shingle courses, overlapping the shingles according to the flashing kit instructions. Apply roofing cement beneath the overlapping shingles for added protection.
Tiles: Ensure the flashing sits properly beneath the tiles, allowing for water runoff. Cut or shape tiles as needed to fit snugly around the flashing. Use tile adhesive to secure the tiles in place.
Metal: The flashing should overlap the metal roofing panels, with a sealant applied between the surfaces. Use self-tapping screws designed for metal roofs to secure the flashing.
In all cases, ensure proper drainage by allowing water to flow freely off the roof. Inspect the integration carefully and make any necessary adjustments for a seamless and watertight finish.
Specific Flashing Kit Considerations
Each Velux flashing kit (EDW, EDL, EDT, EDZ) is designed for specific roofing materials. Understanding these differences is crucial for a successful installation and long-term weather protection. Always follow the kit-specific instructions.
EDW Flashing for Profiled Roofing Material
The EDW flashing kit is specifically engineered for use with profiled roofing materials such as tiles and corrugated metal. Its design allows it to effectively integrate with the uneven surface of these materials, ensuring a watertight seal around the skylight. The EDW flashing accommodates roof pitches between 15 and 90 degrees.
During installation, it’s essential to carefully mold the flashing components to the contours of the roofing material. This ensures that water cannot penetrate the gaps created by the profiles. The side flashings are particularly important, as they channel water away from the skylight and prevent leaks.
Always consult the VELUX installation guide for EDW flashing for specific instructions and torque settings. Proper installation guarantees long-lasting protection against weather elements and prevents costly repairs. Using the correct underlayment is also vital for optimal performance.
EDL Flashing for Flat Roofing Material
The EDL flashing kit is designed specifically for VELUX skylight installations on roofs with flat roofing materials, such as slate or shingles. This type of flashing provides a weathertight seal on roofs with a minimal profile. The EDL flashing ensures proper water runoff and prevents leaks in low-slope applications. Its construction allows for seamless integration with the roofing surface.
The installation process involves carefully layering the flashing components to create a waterproof barrier. Accurate measurements and precise placement are essential for optimal performance. The EDL flashing kit typically includes underlayment collars that further enhance the seal around the skylight.
Always refer to the VELUX EDL flashing installation guide for detailed instructions and safety precautions. Proper installation is crucial for preventing water damage and ensuring the longevity of your skylight and roof. Using the correct sealant is also vital for achieving a watertight seal.
EDT Flashing for Flat Tiles
The EDT flashing kit is specifically designed for installing VELUX roof windows into roofs covered with flat tiles. It is suitable for tiles with a thickness between 15mm and 40mm. This flashing kit ensures a watertight seal while maintaining the aesthetic appeal of the flat tile roof. The EDT flashing integrates seamlessly with the tile pattern, providing a clean and professional finish.
The installation process requires careful attention to detail to ensure proper alignment and weather protection. The flashing elements are designed to interlock with the flat tiles, creating a barrier against water penetration. It is crucial to follow the VELUX installation guide closely for optimal results. The guide provides step-by-step instructions and diagrams for accurate placement.
Proper installation of the EDT flashing guarantees long-lasting protection against leaks and water damage. The kit includes all necessary components for a complete and secure installation. Use the recommended sealant to enhance the watertight seal and ensure years of reliable performance. Always prioritize safety during the installation process.
EDZ Flashing for Single Tiles
The EDZ flashing kit is tailored for installations involving single, or plain, tiles on a roof. This type of tile often presents unique challenges, requiring a specialized flashing solution to achieve a watertight seal. The EDZ flashing is designed to integrate with these individual tiles, ensuring proper drainage and preventing water ingress around the roof window.
Installation of the EDZ flashing requires precise fitting and careful attention to detail. The flashing elements are shaped to accommodate the profile of the single tiles, creating a secure and weather-resistant barrier. Refer to the VELUX installation guide for specific instructions and diagrams related to the EDZ flashing kit.
Properly installed EDZ flashing will provide long-lasting protection against leaks and water damage, preserving the integrity of your roof and home. The kit typically includes all necessary components for a complete installation. Be sure to use the correct sealant to maximize the watertight seal and ensure optimal performance. Always follow safety precautions during the installation process.
Post-Installation Checks
After installing the flashing kit, inspect for a watertight seal, ensuring no gaps are present. Check for proper drainage around the window. Perform a final inspection, making adjustments as needed.
Ensuring a Watertight Seal
Achieving a watertight seal is paramount for a successful VELUX flashing kit installation. Carefully examine the perimeter of the flashing where it meets both the skylight and the roofing material. Look for any visible gaps or inconsistencies that could allow water to penetrate.
Pay particular attention to areas where the flashing overlaps, ensuring these are properly interlocked and sealed according to the manufacturer’s instructions. Use appropriate sealant, if recommended, to enhance the watertightness of these joints. Consider the effects of drizzle and driving snow.
Inspect the underlayment collar, if one was installed, to confirm it is correctly integrated with the roofing underlayment. Any breaches in the underlayment can compromise the entire system. A thorough inspection ensures the longevity of your VELUX installation.
Remember to consult the official VELUX installation guide for specific details about your flashing kit model!
Checking for Proper Drainage
Proper drainage is crucial to prevent water accumulation around the skylight, which can lead to leaks and damage. After installing the flashing kit, carefully inspect the area around the skylight to ensure water can flow freely away from it. Look for any obstructions, such as debris or incorrectly positioned roofing materials, that could impede drainage.
Confirm that the flashing is correctly angled to direct water away from the skylight and onto the roof. The flashing should overlap the roofing material in a way that encourages water runoff.
If necessary, make adjustments to the surrounding roofing material to improve drainage. This might involve trimming shingles or tiles to create a smoother path for water flow. Consider how snow will melt and drain away from the skylight during winter months. Proper drainage is essential for long-term leak prevention.
Always consult the VELUX instructions for specific drainage recommendations related to your flashing kit.
Final Inspection and Adjustments
After completing the flashing installation, conduct a thorough final inspection to ensure everything is properly secured and sealed. Carefully examine all edges of the flashing to confirm they are tightly integrated with the roofing material. Look for any gaps or loose areas that could allow water to penetrate. Pay close attention to the corners and seams, as these are common points of leakage.
If you find any imperfections, make the necessary adjustments immediately. This may involve applying additional sealant, tightening screws, or repositioning flashing elements. Double-check that all components are aligned correctly and that the skylight is securely mounted.
Before considering the installation complete, simulate a rainfall by gently spraying water around the skylight with a hose. Observe the water flow to ensure it is directed away from the skylight and that no leaks are present. Make any final adjustments as needed to guarantee a watertight seal.