Wind Mitigation Roof Geometry
Section five of the 1802 form is about Roof Geometry: What is the roof shape or shapes?
Porches or carports that are attached only to the fascia or wall of the host structure and not structurally connected to the main roof system are not considered in the roof geometry determination. You can see a clear example below.
Patio not connected to the houe roof system
A. Hip Roof Hip roof with no other roof shapes greater than 10% of the total building perimeter. Here are some examples the center is all hip. Many times the building perimeter has to be measured and calculations done to figure the answer.
Roof Shape
B. Non-Hip Roof Any other roof shape or combination of roof shapes including hip, gable, gambrel, mansard and other roof shapes not including flat roofs.
Hip and Gable roof
C. Flat Roof Flat roof shape greater than 100 square feet or 10% of the entire roof, whichever is greater.
Many flat roofs have to be measures and calculated against the total square footage of the whole roof system.
Flat roof
Measuring a roof can be tricky, usually and generally accepted principles require measuring the fascias or bottom cord of the gables.
Measuring
