Construction Warm Flat Roof Fascia Detail

A flat roof must be strong durable and stable throughout its lifetime.

Construction warm flat roof fascia detail.

There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. Those details show the chief drawback of the warm roof the deep fascia. Others would treat even steeper pitches as flat roofs. This article has covered flat roofs in detail from how to frame a flat roof and the construction of a flat roof joist and other timber flat roof construction details to troubleshooting and carrying out small repairs.

If insulation is installed below the flat roof deck this is called a cold roof. It must provide adequate protection against the elements keeping the buildings structure and interior dry. They can be built up from profiled metal decks as the insulation selected would provide enough rigidity to span the open sections of such decks. Consider geography budget and use for the roof to determine the best option.

Say 150 joists and 152 beam which gives a fascia about 450 deep rather ungainly. From there the flat roof system you choose will determine the materials you apply. Your sketches seem to show the insulation proportionately thinner than it needs to be. The definition of a flat roof according to bs 6229 is having a pitch less than 10 o to the horizontal however some in the industry would consider up to 15 o as their definition of a flat roof.

For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. Construction studies drawing detail showing how to draw a flat roof warm deck construction detail to a scale of 1 10 with a short introduction highlighting t. A note to consider before construction. It s always worth considering all flat roof construction details as this way you can make an informed decision before proceeding.

A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less. Doing it the builder s way you are looking at 125 kingspan. The 3 most common materials used for flat roof construction. Warm roof build ups can be installed on most modern construction material types such as concrete timber and timber based sheets.

Hot tar and gravel. So far so good.