The type and shape of the roof on your home can help determine how well it will perform during a severe windstorm.
A hipped roof is one that slopes upward from all sides of the building. Because of its aerodynamic properties and construction techniques, most hipped roofs will perform better in windstorms than the second roof type: a gabled roof.
A gabled roof has two slopes that come together to form a ridge or a peak at the top, each end looks like the letter A. Homes with gabled roofs are more likely to suffer greater damage, such as collapse of the end wall from high winds because they are often not braced properly during construction.
If your home is built with a gabled end wall, use one of the following construction techniques.
Continuous wall construction or Balloon framing. Use full-height studs, concrete or solid masonry walls from the floor below all the way up to the roof. Balloon-framed gable end walls perform better in windstorms because they do not have the hinge that usually exists where the triangular part of the gable sits on top of the wall below.
Platform framing. Brace the intersection of the gable and the end wall. This intersection is a particularly weak point and those that are not properly braced can collapse, causing major damage to the roof, allowing wind and wind driven rain into the home.
In homes with attics, an attic floor or ceiling diaphragm with the proper bracing techniques can be used to provide the lateral support of the gable end wall if the end wall is framed full height.
Install bracing along the top and the bottom of the gable end. In addition, connect the gable end to the top of the end wall using metal hurricane connectors.
In homes with high cathedral-like ceilings, where there is no ceiling to brace the gabled end, will have to be balloon framed or will require a special design by a registered or licensed engineer.
The type and shape of the roof on your home can help determine how well it will perform during a severe windstorm.
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