Typhoon Proof Roof Design

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.

Typhoon proof roof design.

Perhaps the most vulnerable area of the house during typhoon is the roof. It s more expensive but much more resistant to blown debris. A gable end roof is generally cheaper to build but less wind resistant than a hip style roof. Once the roof is damaged or ripped off the interior of the entire house is exposed to wind rain and other matter.

Hurricane hugo has proven the strength of the shed roof. 8 additionally with the roof and floors built using a radial truss array that allows any potential energy from sustained winds to disperse across the entire structure instead of building up in one area. For example you might find that the roofs in hurricane prone areas are multi sloped. Hip roofs with four slopes will perform better than gabled roofs with only two slopes.

A round or multiple sided home is more resistant to hurricane strength winds. 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. That is to say that conceptually the shed roof would be blown away and the main roof would stay intact. The pressures above show the upward wind pressure on the 3 main types of roof.

To know more about roof check out this 6 roof ideas for your home. Probably the most important part of a hurricane house is a reinforced roof. Many shed roofs of traditional design have survived the storm. Roof overhangs are subject to wind uplift forces which could trigger a roof failure.

How being proactive pays off. Design guidelines for hurricane resistant buildings. To provide additional security for your roof install roof tie downs and anchors. In the design of the hurricane resistant home the length of these overhangs should be limited to 20 inches.

All of these issues must be taken care of before hurricane season hits. This can be illustrated in the diagram below from the whole building design guide organisation. 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. If you end up investing in a new metal roof resistant to hurricane damage you may reap more benefits than you initially realized.

Hurricane resistant houses should use stronger plywood. 6 7 the round design allows the wind to blow around the home reducing the build up of pressure on one side.