If you are replacing a roof lantern you ll need to remove the old one.
How to construct a flat roof with a roof lantern.
The advantage of this market leading technology.
Whether fitted as part of an orangery over a kitchen extension stairwell garden room or another application a prestige roof lantern will help to make any space brighter and more open.
Sizes of joists needed for flat roof construction.
The job of an upstand sometimes referred to as a kerb is to lift the glass element of your rooflight off of the roof s surface and is required by building regulations for safety and weathering.
This solution allows you to combine as many modules of up to 4 square metres as you want which equals most lantern sizes.
If you are adding a skylight to a flat roof you must decide on whether to construct your own upstand or purchase one from your rooflight supplier.
Vario by velux offers a modular flat roof solution called the unlimited rooflight.
Drive a nail into each corner of the plywood to hold it in place temporarily.
The 3 most common materials used for flat roof construction.
Adding a roof lantern and flooding a room with natural light can be a great way to make a room feel more spacious.
So any timber joists that are used need to be strong enough to support this weight.
If you are installing a new roof lantern you will need to cut the roof as required.
As you may imagine there is a fair amount of weight involved here in terms of boards felt etc.
This kerb is called an upstand the outside face of which allows the flat roofs external surfacing to lap up and form a weather tight junction.
Our roof lanterns have a distinct and unique design that utilises the latest state of the art technology in structural silicone glazing.
Roof lanterns are a great way of bringing natural light into a room where wall space may be limited.
You could for example combine three modules of 3000mm x 1000mm which equals 9 square meter of clear sky view.
For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow.
Make sure it s lying horizontally across the exposed rafters and that the edges are flush with the edges of the end rafters.
Hot tar and gravel.
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.
Cut and frame the opening.
Cut back the roofing.
Roof lanterns are an alternative to flat glass rooflights the glass is angled to a pitch creating two triangular end pieces and two trapezoidal long sides which create the distinctive roof lantern shape.
Put down your first sheet of plywood at the corner of one end of the roof.
Whether you are wanting to flood a room with natural light or star gaze on clear night from the comfort of your sofa a roof lantern would be the perfect addition to any single story extension or bungalow with a flat roof.
How to install a roof lantern on a flat roof.