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PROJECT NO: 4140 92-2757 DATE: July 23, 1993 <br /> PAGE: 2 <br /> FINAL TEST RESULTS <br /> EXPAINDED POLYSTYRENE THERMAL INSULATION PERFORMANCE <br /> IN A BELOW-GRADE APPLICATION <br /> INTRODUCTION• <br /> This report presents the results of a three year evaluation of the thermal performance of expanded <br /> polystyrene (EPS) insulation in a below-grade foundation application in a cold climate environment. The <br /> EPS was manufactured to meet the physical property requirements of ASTM C578 (Standard Specification <br /> for Preformed, Cellular Polystyrene Thermal Insulation). <br /> The scope of the study was limited to: <br /> 1. Evaluating EPS insulation applied to the below-grade foundation of Twin City Testing's Cromwell <br /> Ave building in St. Paul, Minnesota. <br /> 2. Conducting tests on control samples to determine density, thermal resistance reference values, a! <br /> well as to document compressive and flexural strength (see Appendix A: TCT Report # 414189. <br /> 659, dated 9-27-89). <br /> 3. Subsequently, for three years beginning October, 1990, removing a set of samples and conducting <br /> tests to determine density, thermal resistance, and moisture content of the EPS foundation insulation <br /> (see Appendix A: TCT Report #414190-0022, dated 11-1-90, TCT Report#414191-0878, dates <br /> 10-31-91, and TCT Report # 4140 92-2757 data supplement, dated 5-10-93). <br /> 4. Documenting temperatures, annual precipitation, and soil moisture content (see Appendix B). <br /> AS A MUTUAL PROTECTION TO CLIENTS THE PUBLIC AND OURSELVES,ALL TWIN CITY TESTING CORPORATION REPORTS ARE SUBMFT.TED AS THE CONFIDENTIAL PROPERTY OF <br /> AND AUTHORIZATION FOR PUBLICATION OF STATEMENTS CONCLUSIONS OR EXTRACTIONS FROM OR REGARDING OUR REPORTS IS RESERVED PENDING OUR PRIOR WRITTEN APPPCA <br />