Typhoon Proof Roof Design

In addition to stronger materials below the roof hurricane prone areas design the roofing system differently than buildings which are not in high risk areas.

Typhoon proof roof design. 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. Here s how to build a hurricane resistant house not as expensive as you may think published tue may 21 2019 7 30 am edt updated fri may 31 2019 3 10 pm edt diana olick in dianaolick. Probably the most important part of a hurricane house is a reinforced roof. The outer siding of your home also needs to be an approved hurricane resistant material.

Strengthen your roof with trusses. Yet the glaring disadvantage comes from hurricanes or tropical storms that make landfall. Roof overhangs are subject to wind uplift forces which could trigger a roof failure. It s more expensive but much more resistant to blown debris.

This can be illustrated in the diagram below from the whole building design guide organisation. 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. Many shed roofs of traditional design have survived the storm.

Hurricane resistant houses should use stronger plywood. That is to say that conceptually the shed roof would be blown away and the main roof would stay intact. Hurricane hugo has proven the strength of the shed roof. The pressures above show the upward wind pressure on the 3 main types of roof.

The round design allows the wind to blow around the home. Hip roofs with four slopes will perform better than gabled roofs with only two slopes. 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. In the design of the hurricane resistant home the length of these overhangs should be limited to 20 inches.

A gable end roof is generally cheaper to build but less wind resistant than a hip style roof. Design guidelines for hurricane resistant buildings.