How do you calculate wind loads using ASCE 7-05 for the following structure?

A monoslope roof over an open structure. Height = 10', width = 5', length = 100'

Lets say wind speed = 90 MPH, Exposure "B".

The problem comes with the h / L value. In this case it is 2.0 which falls outside of the range of the table in the code.

Question: How do I use the code for this structure?