How To Measure For A Roof Lantern

This will be the size of the opening the thickness of the plaster boards you use to line the opening.

How to measure for a roof lantern.

Darren collins 4th september 2017. When you decide which roof lantern you would like we will provide you with the details for how to install your chosen sky light. Longer roof lanterns are 2 4m x 1 2m. Generally speaking we advise that the overall glazing area in any extension should cover atleast 15 20 of the overall floor space.

The inside of you builders upstand should line up with this finished opening size. When measuring for your new roof lantern or skylight you should measure the external size of the hole length and width. This is usually always the external kerb size width x length not the hole in the roof size. If it does the roof lantern dimensions will normally be taken from the external face of the supporting kerbs and the lantern will be fitted to overhang for weathering.

All our roof lanterns shown on this website are designed to be fixed onto a kerb like detail which rises proud of the supporting flat roof assembly precisely at the open edge of the lantern aperture. If you have an existing upstand on site then please take an external and internal measurement of the upstand and contact us. The roof lantern upstand in detail. The most important thing to remember when deciding on what size rooflight you require is that the size of our windows width x length are measured to the external kerb upstand not to the size of the hole in your roof or the window itself.

When you browse our range of roof lanterns each product will have a size relating to the product you are looking at. Therefore we need to know the finished internal measurements of the opening in your roof. We advise to measure at various points and checking the diagonals to ensure it is square. The omega upvc lantern works with internal opening measurements.

So if you are interested in having a roof lantern installed the answer is simple. Where do i measure from. Link below is a project in london the size of the. We offer roof lanterns in.

A smallish 100x100cm lanterncan let in a surprising amount of sunlight while a 150x250cm lanterngives an excellent area of light for a medium sized roof. The roof lantern upstand in detail.