- Author
- Son, B. C.
- Title
- Fire Endurance Test of an Interdwelling Double Wall Constructed of Polyurethane Foam-Filled Sandwich Panels. Final Report.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Sponsor
- Department of Housing and Urban Development, Washington, DC
- Report
- NBSIR 73-170, April 1973, 24 p.
- Distribution
- Available from National Technical Information Service
- Contract
- IAA-H-16-70
- Keywords
- fire endurance | fire tests | Operation Breakthrough | polyurethane foams | toxic gases | party walls
- Abstract
- As a part of the evaluation of housing systems for Operation BREAKTHROUGH, a standard ASTM E 119 fire endurance test was performed on a double wall assembly comprising a loadbearing interdwelling (party) wall for single family attached housing. The test was generally in accordance with the requirements of ASTM E 119, Fire test of Building Construction and Materials. The applied live load was 678 pounds per linear foot (p1f) per wall and the test results are valid only for walls of similar construction loaded at or below the stress level developed by this loading. The fire endurance of the first (fire exposed) wall, based on structural load failure, was 1 hr and 4 min. The test was discontinued at 1 hr:06 min because of untenable conditions in the test building resulting from smoke and combustion gases released by the polyurethane foam insulation in the wall.