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Wind Load in ICC - Possible Error?

Wind Load in ICC - Possible Error?

Wind Load in ICC - Possible Error?

(OP)
ICC (2003) Section 1609.2 - Definition for EFFECTIVE WIND AREA is nearly the same as the definition in the ASCE-7-02 - Section 6.2 except for the ICC refers to the Tables 1909.6.2.1(2) and 1609.6.2.1(3) where the ASCE-7-02 refers to Figures 6-11 through 6-17.  Both refer to the product GCp.  The ASCE-7-02 seems to apply this definition to Method 2.  I am assuming this is not applied to method 1 (simplified method)

The author of a study guide I believe is misinterpreting this definition.  He is applying it to the Cladding and Components section of method 1 as insinuated by the definition in the ICC.  Since GCp in both codes refer to ASCE 7-02 (Figure 6-5 - Method 2) I am assuming the definition in the ICC also refers to Method 2 (Rigorous Analysis)

The bottom line - do I compare the wind area width (minimum of 10% of least span or 40% height but not less then 3' or 4% of least span) to 1/3 the height of the building?  Refer to Figures 1609.6.2.1 and Figure 1609.6.2.1 (ICC 2003) or Figures 6-2 and 6-3 (ASCE 7-02)

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