Report Number: C.C.L. Performance Test Report #90-1056
Report Date: 1 February 1991 Revised: 7 March 1991
Introduction
A Mock-Up Test Specimen consisted of a 16 oz. copper, cold rolled temper, 1" high standing seam roof section, sloped to a 4" in 12" pitch. The specimen was tested in accordance with SMACNA Roof Panel Test clarifications at the direction of SMACNA. The following text is an abbreviated description of the testing procedures, refer to original document for a complete report.
| Substrate | 15/32" CDX Plywood |
|---|---|
| Cleats | 5" in length, double nailed, 12" o.c. |
| Nails | 1 ¼" Ring Shanked, two per cleat. |
| Seams | 20 ¾"o.c. in Center Pans, 15 ¼" in End Pans |
Test Date: 14 January 1991
Preload - Prior to testing, the specimen was subjected to a positive static pressure differential of 26.0 p.s.f., 50% of the assumed design load. The load was maintained for 10 seconds then released. No visible deformation or damage to the specimen was observed after the load was released.
Air Infiltration Test Similar to ASTM E283-84 - The exterior face of the specimen was covered with an impervious visqueen material. Edges and corners were sealed to allow no air movement through the specimen. The exterior face of the specimen and chamber were subjected to a positive static pressure differential of 5.20 p.s.f. The measured amount of air infiltration through the chamber was 92.0 c.f.m. The impervious material was removed and the same test was performed and measured for gross air infiltration at the rate of 111.5 c.f.m. The net amount of air infiltration through the specimen was the difference between the specimen with the impervious material (chamber only) and the specimen without it.
Net Air Infiltration: 19.5 c.f.m.
Air Exfiltration Test Similar E283-84 - The exterior face of the specimen was covered with an impervious visqueen material. Edges and corners were sealed to allow no air movement through the specimen. The exterior face and chamber were subjected to a negative static pressure differential of 5.20 p.s.f. The measured amount of air exfiltration through the chamber was 141.0 c.f.m. The impervious material was removed and the same test was performed and measured for gross air exfiltration at the rate of 144.5 c.f.m. The net amount of air exfiltration through the specimen was the difference between specimen with impervious material (chamber only) and specimen without it.
Net Air Exfiltration: 3.5 c.f.m.
Static Water Penetration Test Similar to ASTM E331.86 - Water was applied with complete and continuous coverage to the exterior face panel of the test specimen, at a minimum rate of five gallons per hour, per square foot. Simultaneously, a negative static pressure differential of 10.4 p.s.f. from below the roof was applied against the face. The combined application of water and pressure was maintained for a period of 15 minutes.
RESULTS: Specimen passed the test. No uncontrolled water penetration was observed during or at the conclusion of the test.
Dynamic Water Penetration Test Similar to AAMA 501.1-83 - Water was applied with complete and continuous coverage to the exterior face panel of the test specimen, at a minimum rate of five gallons per hour, per square foot. Simultaneously, the panel was subjected to an 80-85 m.p.h. slipstream airflow generated by a device situated approximately 20 feet away from the front eave on the specimen. The combined application of water and wind was maintained for a period of 15 minutes.
RESULTS: Specimen passed the test. No water penetration was observed during or at the conclusion of test.
Uniform Structural Deflection Test - A specially designed "lift-off-chamber" was installed over the test specimen. All structural test loads were applied from the exterior face of the panel. Dial indicator gauges were installed to measure deflection and residual deformation at ends and midspan of the panel. The tests were performed for both negative and positive static pressure of 26.0 p.s.f., equal to 50% of assumed design load. The load was held for 10 seconds then released. The same test was performed for negative and positive static pressure of 40 p.s.f., 60 p.s.f, and 90 p.s.f. Dial indicators were set to zero before each new load was applied.
RESULTS: Specimen passed the test. No deformation or damage was observed.
The Uniform Structural Test to Failure - This test was performed but not as a requirement to previous testing. The test specimen was subjected to an increasing negative load until maximum capabilities of the blower system were reached or failure of the specimen occurred. At a negative static pressure of 190.0 p.s.f., excessive deflection was observed at the panel midspan. Isolated areas of the standing seams had folded over after the panel exceeded "limitations of cavity" between the specimen and the chamber support steel.
RESULTS: No other deformation, damage, fastener pullout or disengagement of specimen was observed.