Built Up Flat Roof Details

It is composed of alternating layers of reinforcing fabric and bitumen asphalt and is finished with a top layer of aggregate such as stone or gravel.

Built up flat roof details.

Flat roofs come in many shapes and sizes which include parapet roofs roof decks and green roofs to name just a few of the options available. As a system built up roofing bur is a type of asphalt roofing that has been around for more than 100 years. If you build and flash one right and keep it clean a good flat roof won t leak says toh general contractor tom silva who had seven different flat roofs. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

It is one of the most common materials used on low slope or flat roofs. It is one of the most common materials used on low slope or flat roofs. Ultimately a flat roof should play a part in a total architectural composition and has the ability to enhance the aesthetic and practical outcomes of a home. Some carry warranties of up to 20 years approaching those for sloped roofing.

Having a manual for warm flat roof construction with details and a summary of rules to follow helps. Wally for the project kick off segment of the roofing it right miniseries on installing a commercial roof from start to finish. Built up roofing also called bur is the most common roofing material used on low slope roofs. Built up roofing bur this multi layer roof design is a proven system that has been around for generations.

The following outlines ways to build protect and reinforce your roof. A further benefit of this type of flat roof build up is that the waterproofing layer is hidden and thereby protected from the effects of solar gain. Given that the specially selected insulation layer is loose laid it will require ballasting to guard against wind uplift or floating in wet conditions. Others would treat even steeper pitches as flat roofs.

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. There is a wide variety of flat roof materials available each with its own advantages and drawbacks. When building a flat roof it is vital that a degree of falls is built into the construction to ensure rainwater run off. Whether you re in the design phase or on the roof we can provide the tools and support to get the project done right.

Fortunately modern materials for covering flat roofs have improved considerably over the past two decades. Commercial roofing specs and details find the resources you need to design the best roofing system for your project.