How To Construct A Flat Roof With A Roof Lantern

How to install a roof lantern on a flat roof.

How to construct a flat roof with a roof lantern.

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. Hot tar and gravel. The 3 most common materials used for flat roof construction. As you may imagine there is a fair amount of weight involved here in terms of boards felt etc.

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. 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.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Cutting the opening requires drilling a hole in the roof and cutting the opening with a circular saw. A flat roof is water resistant so you do not have to worry about water damage. As with the construction of any type of roofing system it s crucial to understand the correct process and essential criteria involved in flat roofing construction.

Cut and frame the opening. For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. 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. Of course you don t need to live in a modern house to deal with a flat roof.

Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. Cut back the roofing. Flat roofs are durable. While many will contact a professional installation company to complete the job there are others who will feel confident enough in their own ability to install a flat roof onto the.

If you are replacing a roof lantern you ll need to remove the old one. If you are installing a new roof lantern you will need to cut the roof as required. 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.