In this article, we will provide you with a comprehensive guide that covers two crucial aspects of your Korniche roof lantern journey: measuring and choosing the correct size, as well as installing the lantern once it has been delivered to your doorstep. To make it easier for you to navigate, we have divided the guide into two sections:
How to choose the right size for your Korniche roof lantern
Selecting the appropriate size for your Korniche roof lantern is a crucial step towards achieving a seamless and visually stunning installation. Depending on whether you have the upstand measurements ready or only know the roof opening size, this guide will provide two distinct sections to assist you. Click on the relevant part below to jump directly to the corresponding section:
By following the step-by-step instructions in each section, you will be able to measure accurately and choose the right size for your Korniche roof lantern, ensuring a perfect fit and a visually appealing result.
Part 1: Measuring with Upstand Installed
Proper measurement is crucial for a successful installation of your Korniche roof lantern. This guide will provide step-by-step instructions for measuring when you already have the upstand installed.
Step 1: Measure the external upstand and roofing membrane
Begin by measuring the dimensions of the external upstand that is already in place. Measure the width and length of the upstand accurately. If there is a roofing membrane on top of the upstand, include this within your measurement.
Step 2: Add the recommended measurements and overhang
Additionally, include a 12mm overhang on all sides for aesthetic purposes and water run-off. This will ensure a perfect fit for your Korniche roof lantern.
Step 3: Order the appropriate size
You’re now able to order your roof lantern with the measurements obtained in step 2. You can order your roof lantern here.
Minimum / maximum order sizes are as follows:
| Square | Rectangular | |
| Minimum order size | 850 x 850 mm | 850 x 732 mm |
| Maximum order size | 4000 x 4000 mm | 6000 x 4000 mm |
Example:
| Upstand (inc Membrane): | 1840 x 1220 mm |
| + Overhang: | 12 x 12 mm |
| Total order size: | 1852 x 1232 mm |
Part 2: Measuring from the Roof Opening
If you do not have the upstand already installed or are working with the roof opening size alone, this section will guide you through the process of measuring to determine the appropriate size for your Korniche roof lantern. Using an updated formula, you can calculate the dimensions needed to ensure a perfect fit.
Step 1: Measure the roof opening
Measure the width and length of the roof opening accurately using a tape measure. Take into account any irregularities or obstructions within the opening.
Step 2: Apply the formula
To calculate the roof lantern order size, follow this updated formula:
Roof Lantern Order Size = Roof Opening Size + (External Upstand Width x 2) + 12mm.
Please note: The minimum width for upstands is 69mm.
Step 3: Order the appropriate size
Based on the calculated dimensions, select the Korniche roof lantern size that matches these measurements. This will ensure the chosen lantern fits comfortably within the external upstand and provides the desired aesthetic and functional outcome.
Measuring from the roof opening allows you to determine the right size for your Korniche roof lantern, even if you do not have the upstand already installed. By applying the updated formula and considering the external upstand width, you can accurately calculate the dimensions needed for a perfect fit. With the appropriate measurements in hand, you can confidently order the ideal size and proceed with the installation process, knowing that your Korniche roof lantern will seamlessly enhance your living space.
Example:
| Roof opening size: | 1000 x 1000 mm |
| External upstand width (x2): | 69 mm (138 mm) = +138 x 138 mm |
| To achieve 6mm overhang: | +12 x 12 mm |
| Total order size: | 1150 x 1150 mm |
How to install a Korniche roof lantern
Installing a Korniche roof lantern can be a rewarding project that enhances the beauty and functionality of your home. To ensure a successful installation, follow these step-by-step instructions. Before you begin, gather the necessary tools mentioned in the video and listed below.
Tools Required:
- Rubber Mallet
- Tube of Low Modulus Silicone
- Mastic Gun
- Drill
- Drill Bit
- Hex Fastener
- Wire Snips
Step 1: Apply silicone to the main bars that fit on the upstand
Apply a bead of low modulus silicone sealant to the top of the Korniche roof bars that will fit onto the upstand.
Step 2: Assemble and fit the hip rafters
Assemble the hip rafters by inserting the barbed ends into the sockets. Place the assembled hip rafter onto the roof. Secure the hip rafters in place using hex fasteners. Make sure to use a drill bit that fits the hex fasteners provided.
Step 3: Install the glass and place the glazing beads
Install the glass panels into the roof lantern framework. Place glazing beads between each panel to secure the glass in place. Simply press the beads into the groove between the glass and the frame.
Step 4: Fit the corner pieces and outer cap
Fit the corner pieces over the corners of the roof lantern. Ensure they align correctly. Use a rubber mallet to tap the corner pieces into place. Install the outer cap over the corners, pushing it down until it clicks securely.
By following these step-by-step instructions, incorporating the insights from the video guide, and having the necessary tools on hand, you can successfully install your Korniche roof lantern. Remember to refer to the manufacturer’s instructions and the video for detailed guidance and safety precautions. A well-installed roof lantern will bring natural light, architectural beauty, and a sense of openness to your living space. Enjoy the enhanced ambiance and functionality that your Korniche roof lantern brings to your home!


