Typhoon Resistant Roof Design

Following are path s recommendations for achieving storm resistant roofing.

Typhoon resistant roof design.

Hurricane resistant houses should use stronger plywood. Yet the glaring disadvantage comes from hurricanes or tropical storms that make landfall. The outer siding of your home also needs to be an approved hurricane resistant material. A gable end roof is generally cheaper to build but less wind resistant than a hip style roof.

That is to say that conceptually the shed roof would be blown away and the main roof would stay intact. 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. Additionally you may find that the traditional triangle trussed roof is abandoned for a curved roof design. This can be illustrated in the diagram below from the whole building design guide organisation.

Regarding the material of the roof hurricane prone areas tend to use galvanized metal over shingle. The standard metal roofing thickness is now 26 gauges but some structural engineers now recommend a thicker sheet of ga. A round or multiple sided home is more resistant to hurricane strength winds. Many shed roofs of traditional design have survived the storm.

The pressures above show the upward wind pressure on the 3 main types of roof. The breakaway theory has therefore become less applicable to shed. Build a moderately pitched hip 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.

Hip roofs with four slopes will perform better than gabled roofs with only two slopes. A cat 5 hurricane proof log house is resistant to the winds up to 245 mph. Design guidelines for hurricane resistant buildings. The round design allows the wind to blow around the home.

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. It s more expensive but much more resistant to blown debris. Because mid range slope roofs withstand strong winds better than steep roofs keep the roof pitch below 6 12 and greater than 4 12. 24 to really make the roof typhoon resistant.

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. In the design of the hurricane resistant home the length of these overhangs should be limited to 20 inches.