Typhoon Proof Roof Design

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.

Typhoon proof roof design. A round or multiple sided home is more resistant to hurricane strength winds. It s more expensive but much more resistant to blown debris. Design guidelines for hurricane resistant buildings. The pressures above show the upward wind pressure on the 3 main types of roof.

Roof overhangs are subject to wind uplift forces which could trigger a roof failure. For example you might find that the roofs in hurricane prone areas are multi sloped. Hurricane hugo has proven the strength of the shed roof. Many shed roofs of traditional design have survived the storm.

Hip roofs with four slopes will perform better than gabled roofs with only two slopes. The breakaway theory has therefore become less applicable to shed. The outer siding of your home also needs to be an approved hurricane resistant material. 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. A gable end roof is generally cheaper to build but less wind resistant than a hip style roof. The round design allows the wind to blow around the home. 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.

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