Flat Roof Construction Terms

Built up roofing a flat or low sloped roof made up of layers of asphalt and ply sheets.

Flat roof construction terms.

Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules. The national roofing contractors association defines a low slope roof as. Here is our glossary of flat roofing terms to help you. For additional stability you can also use steel joists that are built into one or both of the walls.

A flat roof is a roof which is almost level in contrast to the many types of sloped roofs. Flat roofs or low slope roofs are also commonly found on commercial buildings throughout the world. Pros and cons for flat roof materials. On a basic level flat roof construction comes in the form of roofing timbers or joists as they are more commonly known or steels that are laid across two uprights walls in most cases.

The steels or rsj s rolled steel joists are often built into one or both walls to give added stability to the roof structure. A roof is defined in bs 6229 as a flat roof if it has a pitch of 10 degrees or less. The slope of a roof is properly known as its pitch and flat roofs have up to approximately 10. This will give additional stability to the roof structure.

Eaves on a sloped roof the horizontal underside that projects out from the house wall. A composite panel is a construction element made up of a number of elements joined together and used in the construction of roofs and or. A steeper roof that terminates into a flat roof at its high point. Flat roofs are an ancient form mostly used in arid climates and allow the roof space to be used as a living space or a living roof.

An l shaped metal strip positioned along a roof s edges to allow water to run off the roof without running down the eaves or siding. Mechanical fastening may be performed with various fasteners and or other mechanical devices such as plates or battens. Generally used to describe membranes that have been attached at defined intervals to the substrate. Here is our glossary of flat roofing terms to help you.

However over the last few decades new and advanced materials have been developed. It must provide adequate protection against the elements keeping the buildings structure and interior dry. All three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof. Need to know what we mean by warm roof or what a core sample is.

The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls. A decorative steep sloped roof on the perimeter of a building.