Exhibit A

	Inset photos show differential performance water tests.

Project Date: April/May 2004

Project Description: Performed ASTM E1105 differential performance water tests on a mid-rise hotel located in South San Francisco. The purpose of the performance water tests were to assist in evaluation of historic water infiltration problems around the window systems at guest rooms, primarily on the south and west elevations of the structure. Initial tests were performed to establish the failure mechanisms, and then compliance tests were performed following mock-up repairs. Test reports were provided following completion of testing.