Typhoon Resistant Roof Design

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.

Typhoon resistant roof design. The round design allows the wind to blow around the home. A round or multiple sided home is more resistant to hurricane strength winds. Probably the most important part of a hurricane house is a reinforced roof. Hurricane hugo has proven the strength of the shed roof.

Hurricane mitigation adequate roof protection is a must for coastal living seaside property aka coastal living has long been coveted for its fantastic views and access to beaches. The breakaway theory has therefore become less applicable to shed. 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. That is to say that conceptually the shed roof would be blown away and the main roof would stay intact.

Because mid range slope roofs withstand strong winds better than steep roofs keep the roof pitch below 6 12 and greater than 4 12. Yet the glaring disadvantage comes from hurricanes or tropical storms that make landfall. The pressures above show the upward wind pressure on the 3 main types of roof. Following are path s recommendations for achieving storm resistant roofing.

A gable end roof is generally cheaper to build but less wind resistant than a hip style roof. This can be illustrated in the diagram below from the whole building design guide organisation. Hurricane resistant houses should use stronger plywood. Regarding the material of the roof hurricane prone areas tend to use galvanized metal over shingle.

24 to really make the roof typhoon resistant. Build a moderately pitched hip roof. In the design of the hurricane resistant home the length of these overhangs should be limited to 20 inches. Additionally you may find that the traditional triangle trussed roof is abandoned for a curved roof design.

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. The outer siding of your home also needs to be an approved hurricane resistant material. Many shed roofs of traditional design have survived the storm. Design guidelines for hurricane resistant buildings.

It s more expensive but much more resistant to blown debris. The standard metal roofing thickness is now 26 gauges but some structural engineers now recommend a thicker sheet of ga.