![]() They’re constructed from wood, steel or concrete and have some form of barrier to prevent water intrusion. Before this time period, archaic inhabitants made tipi-like shelters from sticks, brush, and mud.įlat roofs are found in both residential and commercial applications. The oldest structure in the U.S., Taos Pueblo, was built between 10 AD, has a flat roof and is still occupied today in New Mexico. ![]() It is likely that the first flat roofs in America can be dated back to the mid 8th century in Puebloan design. The discovery of the oldest flat roof construction dates back between 7100 BC to 5700 BC in the middle east in an ancient settlement called Çatalhöyük in modern-day Turkey. Here’s a comparison of the roof pitches above.Įarly flat roof construction is found predominantly in arid climates such as in Persian, Arabian, and Egyptian architecture. This is starting to get into “flat” roof territory now and this requires a different roofing system such as using a membrane to stop water intrusion. For example, Florida building code says these shingles cannot be used on roof slopes less than 17 percent, or 2 inches of vertical rise for every 12 inches horizontal. These shingles are great for shedding water, but only one way, and that is down a slope. The National Roofing Contractors Association (NRCA) defines a low-slope roof to have no greater a slope than 25 percent, or 3 inches of vertical rise for every 12 inches horizontal. The most popular roofing material these days is asphalt shingles. Some folks don’t like to use the term “flat” to describe roof type since all roofs should have some slope in order to drain water off or direct water to a scupper for drainage. Let’s look at what defines a flat roof, its history, the pros and cons, and both old and new options for roofing materials. There are reasons why flat roof construction began and why you may consider it for new home construction. So if humans learned early on that having a slope on your roof is important why did flat roofs come into the picture and why are they still in use today? I know some flat roof homeowners with neverending, leaky tar-and-gravel roofing that are asking the same question.īut let’s not look too poorly upon the flat roof design quite yet. While there are examples of very early flat roofs most of the earliest roofs constructed by man were thatched roofs that were made of straw, leaves, branches, or reeds they were usually set at a slope, or pitch, so that rainfall could drain off them. On the other hand, if modern architecture floats your boat, stay right here and explore some cool modern house plans! Also see: modern 1 story plans and modern 2 story plans.The flat roof is a fairly recent invention in construction only having come into mainstream use in the early 20th-century. Our contemporary collection can be found under the STYLES heading in the top navigation bar. If contemporary house plans sound more up your alley, have no fear. ![]() For instance, a contemporary house plan might feature a woodsy Craftsman exterior, a modern open layout, and rich outdoor living space. Contemporary house plans, on the other hand, typically present a mixture of architecture that's popular today. Modern house plans proudly present modern architecture, as has already been described. Note that modern home designs are not synonymous with contemporary house plans. While some people might tilt their head in confusion at the sight of a modern house floor plan, others can't get enough of them. These clean, ornamentation-free house plans often sport a monochromatic color scheme and stand in stark contrast to a more traditional design, like a red brick colonial. Large expanses of glass (windows, doors, etc) often appear in modern house plans and help to aid in energy efficiency as well as indoor/outdoor flow. Modern home plans present rectangular exteriors, flat or slanted roof-lines, and super straight lines.
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