Typhoon Roof Design

Once the roof is damaged or ripped off the interior of the entire house is exposed to wind rain and other matter.

Typhoon roof design. The design was a response to the. In the design of the hurricane resistant home the length of these overhangs should be limited to 20 inches. One roof type that i noticed seemed to perform well during irma is the mansard roof. 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.

A gable end roof is generally cheaper to build but less wind resistant than a hip style roof. Roof overhangs are subject to wind uplift forces which could trigger a roof failure. 24 to really make the roof typhoon resistant. Perhaps the most vulnerable area of the house during typhoon is the roof.

To provide additional security for your roof install roof tie downs and anchors. There are examples of bahay kubo with the house to roof ratio of one is to three meaning the height of the walls of the house is one third the height of the roof which makes for very cool interiors since the inhabitants are very far from the. The frame is designed to hold the whole house structure together without chances of the roof tearing from the wall. One of the most badly hit areas by typhoon yolanda.

I noticed a couple of them in a few photos from one of the islands i can t recall if the photos were in. This style also improves the look of the roof providing a more unique and interesting design than the very common simple hip roof. 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. A full or partial gable can be found at the end of the ridge in the roof allowing for a greater amount of internal roof space.

The round design allows the wind to blow around the home reducing the build up of pressure on one side. A good roof pitch would be atleast 30 degrees although traditional vernacular samples may go as high as 45 degrees which i think is better. The dutch gable hip roof is a hybrid of a gable and hip type of roof. The standard metal roofing thickness is now 26 gauges but some structural engineers now recommend a thicker sheet of ga.

This can be illustrated in the diagram below from the whole building design guide organisation.