Typhoon Resistant Roof Design

Yet the glaring disadvantage comes from hurricanes or tropical storms that make landfall.

Typhoon resistant roof design.

Probably the most important part of a hurricane house is a reinforced roof. The design of the cyclonic home includes simple systems to reduce the local wind. That is to say that conceptually the shed roof would be blown away and the main roof would stay intact. Many shed roofs of traditional design have survived the storm.

Following are path s recommendations for achieving storm resistant roofing. The round design allows the wind to blow around the home. The standard metal roofing thickness is now 26 gauges but some structural engineers now recommend a thicker sheet of ga. Hurricane hugo has proven the strength of the shed roof.

A gable end roof is generally cheaper to build but less wind resistant than a hip style roof. Hurricane resistant houses should use stronger plywood. The outer siding of your home also needs to be an approved hurricane resistant material. A round or multiple sided home is more resistant to hurricane strength winds.

Additionally you may find that the traditional triangle trussed roof is abandoned for a curved roof design. In the design of the hurricane resistant home the length of these overhangs should be limited to 20 inches. One effective strategy to protect the house occupants from very strong typhoons is by providing a concrete slab just above the room or if the family can afford the entire house. The pressures above show the upward wind pressure on the 3 main types of roof.

Design guidelines for hurricane resistant buildings. Hip roofs with four slopes will perform better than gabled roofs with only two slopes. Regarding the material of the roof hurricane prone areas tend to use galvanized metal over shingle. Wall logs in such construction have to be made of circular reference glued laminated timber and all other components of the house have to be hurricane resistant.

24 to really make the roof typhoon resistant. Because mid range slope roofs withstand strong winds better than steep roofs keep the roof pitch below 6 12 and greater than 4 12. Build a moderately pitched hip roof. The breakaway theory has therefore become less applicable to shed.

A 4 sided roof is more typhoon resistant because it gives wind less traction to pry the roof away a horrific phenomenon witnessed by people living in houses with two sided roofs during the storm. This can be illustrated in the diagram below from the whole building design guide organisation.