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Page 2 of 14 National Evaluation Report No. NER-520
<br /> 1.C3 SUEJECT
<br /> NATIONAL
<br /> EVALUATION Insulspan Structural Insulated Panels
<br /> SERVICE, INC. � � p��P��TY FflR iNHECH EVALUATIfJN iS iC3UGHT
<br /> Copyright0, 2002
<br /> 2.1 Structural
<br /> 2.2 Surface Burning Characteristics
<br /> NES 2.3 Fire Resistance
<br /> Product Evaluation Lrstinq
<br /> 3.0 DESCR1PT10N
<br /> 3.1 General
<br /> The Insulspan Structural Insulated Panels are structural oriented strand board
<br /> 1.0 SUBJECT (OSB) sandwich panels which are used as components in roof, floor, and wall
<br /> assemblies.The sandwich panels are factory constructed with oriented strand board
<br /> skins on each face of an expanded polystyrene foam core. In order to join adjacent
<br /> 2.0 PROPERTY FOR WHICH panels in the field during installation, spline studs are factory installed on one side
<br /> EVALUATION IS SOUGHT of each panel. Alternatively, it is permitted to make provision on each side of the
<br /> panels for field installation of plywood or OSB surface splines under the skins of
<br /> each face. When additional structural capacity is needed, an additional spline stud
<br /> 3.0 DESCRIPTION is incorporated in the interior of a panel or the spline stud at one side is doubled.
<br /> 3.2 Material Specifications
<br /> 4_0 INSTALLATION 3.2.1 Foam Core-thefoam core is polystyrene,expanded from BASF beads(NER-
<br /> 479) or NOVA Chemicals Inc. beads (NER-236, Dylite M77) by board
<br /> manufacturers under the supervision of a NES listed QA Agency. Nominal
<br /> 5.0 IDENTIFICATION density is 1 pcf.The panels are available in insulation thicknesses of 3��2 and
<br /> — 5 ii2 inches(88.9 and 139.7 mm)for wall and floor applications and 3��2,5��2,
<br /> 7 iia, 9 1/4, and 11 iia inches (88.9, 139.7, 184.2, 235, 285.8 mm) for roof
<br /> 6_0 EVIDENCE SUBMITTED applications. The foam core has a flame spread rating of not more than
<br /> seventy-five(75)and a smoke developed rating of not more than four hundred
<br /> fifty (450) when tested in accordance with ASTM E 84 in a thickness of 5
<br /> 7.0 CONDITIONS OF USE inches (127 mm).
<br /> 3.2.2 OSB skins-the OSB skins are APA or TECO rated sheathing, Exposure 1,
<br /> sis inch (9.5 mm)thick(24/0)or�i�s inch(11.1 mm)thick(24/16), conforming
<br /> ,� � � ,� �� �3�� to US DOC PS-2. Skins are one-piece for the full length of the panels (no
<br /> �� �a�" � �' ° ,���� joints in the skins). Maximum skin size is 8 feet (2440 mm) by 28 feet(8534
<br /> � �
<br /> � �� � �a ;g. ��:t'�'�-a� �3 � u� . I'Tllll�.
<br /> ��3-; •; M� ' ������'�3��3� �`�'��`� 3.2.3 Spline Studs - the spline studs are No. 2 or better southern pine sawn
<br /> � �,�� ��,_�,�
<br /> � "'� � ' �Y' " lumber, No. 2 or better spruce-pine-fir sawn lumber, or 1 3�a inch (44.5 mm)
<br /> ��, �.� + � �,Y,� _. �
<br /> thick 1.9E DF Microllam LVL(NER-481).Alternatively,3 inch(76.2 mm)wide,
<br /> � , � � , 3,��n��� �� �� � �,, � s�s inch (15.9 mm)thick plywood or OSB surface splines may be used when
<br /> �= �` � ' � � ; 3 spline studs are not required for structural capacity or to meet fire resistive
<br /> �� ��,� � s�E � �� '�,���' , assembly details.
<br /> �� .. ... , . ..
<br /> ���> ,,,_�����. '��� 3.2.4 Adhesive-qualified adhesives are used to bond the OSB skins to the foam
<br /> core and are identified in the manufacturer's quality control manual.
<br /> 3.2.5 Nails-in addition to glue, nails are used to attach OSB skins to spline studs.
<br /> Re-Issued November 1, 2002 Such nails are 6d or 8d (as may be required for racking loads)common nails
<br /> meeting Federal Specification FF-N-105B and have a minimum FYb of 100,000
<br /> psi (690 MPa). When OSB or plywood surface splines are used, staples or
<br /> fasteners shall be used as specified elsewhere in this report.
<br /> 3.3 Structural Design
<br /> back to the NES home page Standard panels are 4 ft. or 8 ft. (1220 or 2440 mm) in width and vary in height up
<br /> to 28 ft. (8534 mm), and are illustrated in Fig_ure 1.
<br /> �� �° ��3���.. � Openings (headers and supporting framing) are accomplished by conventional
<br /> r framing methods and are not evaluated by this report.
<br /> � � ��� � £`:� � �' ' Allowable loads for the panels are set forth in the tables at the end of this report.
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