There are several methods and materials for the design of the exterior surface of a warm or cold flat roof.
How to construct a flat roof with a roof lantern.
Drive a nail into each corner of the plywood to hold it in place temporarily.
Adding a roof lantern and flooding a room with natural light can be a great way to make a room feel more spacious.
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.
The 3 most common materials used for flat roof construction.
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.
Vario by velux offers a modular flat roof solution called the unlimited rooflight.
You could for example combine three modules of 3000mm x 1000mm which equals 9 square meter of clear sky view.
The advantage of this market leading technology.
Sizes of joists needed for flat roof construction.
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.
Put down your first sheet of plywood at the corner of one end of the roof.
How to install a roof lantern on a flat roof.
Roof lanterns are a great way of bringing natural light into a room where wall space may be limited.
This solution allows you to combine as many modules of up to 4 square metres as you want which equals most lantern sizes.
Hot tar and gravel.
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.
Cut back the roofing.
Cut and frame the opening.
Make sure it s lying horizontally across the exposed rafters and that the edges are flush with the edges of the end rafters.
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.
Cutting the opening requires drilling a hole in the roof and cutting the opening with a circular saw.
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.
Our roof lanterns have a distinct and unique design that utilises the latest state of the art technology in structural silicone glazing.
As you may imagine there is a fair amount of weight involved here in terms of boards felt etc.
So any timber joists that are used need to be strong enough to support this weight.
Old asbestos roofs are often replaced with flat roofs.
If you are replacing a roof lantern you ll need to remove the old one.
