Division 7 Ebook Page 571 CMU Air Leakage and Water Resistance ASTM E2357 and ASTM E331 Tech Bulletin

ENCLOSURE SOLUTIONS Technical Bulletin CMU-02 Pub. No. 10020914. Printed in U.S.A. May 2016. THE PINK PANTHER & 1964-2016 Metro-Goldwyn-Mayer Studios Inc. All Rights Reserved. The color PINK is a registered trademark of Owens Corning. 2016 Owens Corning. All Rights Reserved. Trademarks are the properties of their respective owners. OWENS CORNING INSULATING SYSTEMS, LLC ONE OWENS CORNING PARKWAY TOLEDO, OHIO, USA 43659 1-800-438-7465 1-800-GET-PINK owenscorning.com/enclosure Test Results Summary and Codes/Standards Compliance Air Barrier When tested in accordance with ASTM E2357, both ASHRAE 90.1 (commercial building energy standard, Section b), and The Air Barrier Association of America (ABAA), define an air barrier assembly as having an average air leakage not to exceed 0.04 cfm/ft 2 at a pressure of 75 pa (1.57 psf). The Owens Corning Enclosure Solutions CMU Wall System with Masonry Veneer and FOAMULAR 250 XPS air barrier system, as described in this technical bulletin, was tested per ASTM E2357 and successfully qualified as an air barrier assembly. After thousands of pressure loading cycles as specified in ASTM E2357 (see Table 1), the Owens Corning Enclosure Solutions CMU Wall System had the air leakage ratings shown in Table 2 measured at 75 pa (1.57 psf). Weather Resistive Barrier The International Code Council "Acceptance Criteria for Water Resistive Coatings Used as Water Resistive Barriers over Exterior Sheathing", AC 212, Section 4.5, requires that specimens be tested in accordance with ASTM E331, and that the specimen show no visible water penetration for 15 minutes at an air-pressure differential across the specimen of 2.86 psf (137 Pa). The Owens Corning Enclosure Solutions CMU Wall System with FOAMULAR 250 XPS Air Barrier Assembly passed the prescribed criteria. Photos: Penetrated wall during air leakage and water resistance testing Deformation Loading Sequence Table 1 Test # Cycles/Period Pressure Result Deformation 1/60 minutes +600 Pa (+12.54 psf) No Damage Deformation 1/60 minutes -600 Pa (-12.54 psf) No Damage Cyclic Loading 2000/5 seconds (1000 each, infiltration & exfiltration) +/- 800 Pa (+/- 16.72 psf) No Damage Gust Loading 2/3 seconds (1 each, infiltration & exfiltration) +/- 1200 Pa (+/- 25.06 psf) No Damage ASTM E2357, Air Leakage Rate After Loading Sequence (cfm/ft 2 ) Table 2 Tested at 75 pa (1.57 psf) Air Infiltration Air Exfiltration ASHRAE 90.1 and ABAA Air Barrier Criteria Qualifies as an Air Barrier Assembly Opaque Wall 0.0005 0.0016 0.04 maximum Yes Penetrated Wall 0.0003 0.0002 0.04 maximum Yes ASTM E331, Water Exposure for Penetrated Wall Table 3 (hr:min:sec) 00:15:00 01:00:00 Qualifies Against Water Penetration Testing per ICC Acceptance Criteria 212, Section 4.5, Water Penetration Resistance Criteria Tested at 137 Pa (2.86 psf) No leakage NA Yes No visible water penetration at 15 minutes Tested at 300 Pa (6.27 psf) No leakage No Leakage NA The Owens Corning Enclosure Solutions Concrete Masonry Unit (CMU) Wall System with FOAMULAR 250 XPS air barrier assembly excludes the masonry veneer and concrete masonry units. A detailed list of the components is available at OwensCorning.com/enclosure.

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