Overall Roof Lantern Size
Please read the instructions and diagram and press "Size is correct" to continue to prices.
Guide for measuring your roof lantern
The lantern must sit on an upstand/base, which can either be built on site by your roofer or supplied by us as a factory-made, thermally certified SIPS upstand sized to your lantern.
When entering your lantern dimensions, please add the thickness of the upstand and waterproof membrane to the length and width of the opening size. Recommended is 75cm for the upstand thickness plus 5mm for the membrane = 80cm on each side, totaling 160cm extra to the length and 160mm to the width.
New Korniche installation video
Example:
| Roof opening: | 1400 x 1000 mm |
| Upstand: | + 75mm on each side |
| Membrane: | + 5mm on each side |
| Total order size: | 1560 x 1160 mm |
For more information, please see the lantern surveying guide and the the upstand surveying guide.
It is the responsibility of the installer to determine the finishing detail of the inside. If you need any further help, why not take a few photos and email them to us for specific advice.
Please note: We are unable to accept responsibility for incorrect measurements.
If in doubt, we recommend to consult a professional installer/builder.
