Old Flat Roof Construction

Once made of tar paper these types of roofs gradually are using more advanced materials such as fiberglass membranes.

Old flat roof construction.

Regardless of how new or modern a house is there is a good chance that it will be topped off with a flat roof now but if you can t picture how great they look we. Workers would heat the asphalt tar or coal pitch to a liquid in a large kettle then mop it on the roof. 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 flat roofs or low slope roofs are also commonly found on commercial. In some cities such as new york and boston clay was popularly used as a precaution against such fires as those that engulfed london in 1666 and scorched boston in 1679.

May 9 2017 explore bernice ohene s board flat roof construction on pinterest. Then in the mid 1800s tar roofs built up roofing were invented. European settlers used clay tile for roofing as early as the mid 17th century. The basic construction of a flat roof starts with roofing timber that is laid across two upright items usually two walls.

This was a flat roof made of layers of felt and tar with a slight slope to a drain. For additional stability you can also use steel joists that are built into one or both of the walls. Gravel is an excellent fire. It should come as no wonder then that these are experiencing a serious comeback right now.

Bur or built up roofs have been in use for more than 100 years in the united states and are often referred to as tar and gravel roofs. Built up roof bur the traditional hot tar and gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Layers of roofing felt usually three feet wide were striped in and covered with melted hot tar.

A flat roof is a roof which is almost level in contrast to the many types of sloped roofs the slope of a roof is properly known as its pitch and flat roofs have up to approximately 10. See more ideas about flat roof roof roof construction. The steels or rsj s rolled steel joists are often built into one or both walls to give added stability to the roof structure. This will give additional stability to the roof structure.

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. Many pantiles s curved tiles as well as flat roofing tiles were used in jamestown virginia. Ask any architect and they ll tell you that hardly any other type of architecture is as timeless and modern as that of flat roof houses.