There are a few options in a case like this:1) don\'t give the project team credit - this is not a prerequisite;2) test the exhaust from the exterior of the home, if it\'s accessible;3) jury-rig the test using cardboard to block off most of the range hood and create a calibrated opening that can be used to test flow rate w/ a balometer. Many raters will have a custom box made from ductboard. There are also some more sophisticated testing tools that could be used, but they are expensive and it\'s unusual for a rater to have the equipment and/or be familiar with how to use it.
Updated 10/1/13 for rating system applicability.