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Home My WebLink AboutICC Legacy ReportIESLEGACY REPORT 97-36 Reissued June 1, 2003 ICC Evaluation Service, Inc. www.icc-es.org Business/Regional Office ■ 5360 Workman Mill Road, Whittier, Califomia 90601 • (562) 699-0543 Regional Office • 900 Montclair Road, Suite A, Birmingham, Alabama 35213 +e (205) 599-9800 Regional Office • 4051 West Flossmoor Road, Country Club Hills, Illinois 60478 ■ (708) 799-2305 Legacy report on the BOCA° National Building Code/1999 DIVISION: 06—WOOD AND Plastics Section: 06120—Structural Panels EVALUATION SUBJECT: MURUS PANELS MANUFACTURER: THE MURUS COMPANY P.O. BOX 220 MANSFIELD, PA 16933 EVALUATION SCOPE Compliance with the following code: BOCA° National Building Code/1999 • Section 1603.1 General • Section 1708.1 Where required • Section 1710.3.1 Test procedure • Section 2305.7 Wind bracing • Section 1404.2 Durability • Section 2603.2 Labeling • Section 2603.3 Surface burning characteristics • Section 2313.2 Sandwich panels • Section 1704.3 Labeling DESCRIPTION The Murus Panel is a composite panel used for exterior wall and roof applications. The Murus Panel, when used as an exterior wall panel, is used either as a curtain wall panel, which resists transverse loads only, or an exterior wall panel, which resists axial and transverse loads. The composite panel is 41/2 inches thick, 4 feet wide and is available in various lengths. See Figure 1 of this report for a diagram of the Murus Panel. • Table 1 of this report contains allowable transverse loads and spans for the Murus Panel. • Table 2 of this report contains allowable loads and spans for Murus Panels subjected to uniform tranverse and concentric axial loads. • Table 3 of this report contains allowable loads and spans for Murus Panels subjected to uniform tranverse and axial loads with an eccentricity of 3/4 in. • Table 4 of this report contains the allowable horizontal racking load of the Murus Panel, with and without openings. • Panel Components • Core: The foam plastic core consists of one of two available foam plastic systems which are as follows: Flexible Products CIP 1416-HC#2 and Flexible Products PPG 442-22D. The Flexible Products CIP 1416-HC#2 core is made up of a rigid urethane foam which consists of an isocyanurate and polyol catalyst blend. The Flexible Products PPG 442-22D core is made up of a rigid ure- thane foam which consists of an isocyanurate and a resin component blend. The foam plastic cores have a density of 2.2 pounds per cubic feet. • Exterior skins: Each face of the Murus Panel consists of 7/16 -inch exterior grade, Exposure 1, Oriented Strand Board (OSB) complying with the United States Department of Commerce PS 2-95 (DOC PS 2-95). • Joinery: The Murus Panel has a tongue -and -groove edge. The connection between the panels is made with a cam lock system, which consists of two parts, as shown in Figure 2 of this report. The cam lock is located along the vertical edge of the Murus Panel at 2 -foot intervals, beginning 1 foot from the top or bottom of the panel. Two Murus panels are secured together by aligning two Murus Panels with cam locks next to each other, with spray foam applied to the tongue (or groove) of one panel, and rotating the cam turning gear in the cam lock with a hex head wrench. After the connection is completed, spray foam is applied in the exterior channel between the two panel skins. The excess foam is removed prior to the application of the exterior wall covering. CONDITIONS OF USE This report is limited to the applications and products as stated in this report. The ICC -ES Subcommittee on National Codes intends that the report be used by the code official to determine that the report subject complies with the code requirements specifically addressed, provided that this product is installed in accordance with the following conditions: • Murus Panels shall be installed in accordance with this report and the manufacturer's instructions. Where the manufac- turer's installation instructions differ from this report, this report shall be null and void. • Murus Panels shall be limited to use as an exterior wall or roof panel in Type 5 construction. • The use of Murus Panels in fireresistance rated wall or roof assemblies is beyond the scope of this report. ICC -ES legacy reports are not to be construed as representing aesthetics or any other attributes not specifically addressed, nor are they to be construed as an endorsement of the subject of the report or a recommendation for its use. There is no warranty by ICC Evaluation Service, Inc., express or implied, as to any finding or other matter in this report, or as to any product covered by the report. Copyright © 2003 Page 1 of 9 Page 2 of 9 97-36 • The design loads on the system shall not exceed those given in Tables 1, 2, 3 and 4 of this report. Design values are for normal duration under dry use conditions and temperatures less than 160°F. • Openings in the Murus Panels shall be limited to the sizes given in Figures 6 and 7 of this report. Openings larger than those shown in Figures 6 and 7 are beyond the scope of this report. • The routing of chaseways into the Murus Panel wall for electrical, plumbing, HVAC or other purposes is beyond the scope of this report. • A top in -let plate, as shown in Figure 3 of this report, shall be provided along the top edge of all Murus wall panels. The top in -let plate shall be installed in such a manner as to be continuous through the vertical panel joints. The top in -let plate shall consist of 2 -inch by 4 -inch dimension lumber. The plate shall be located in a 1 1/2 -inch -deep routed channel at the top of the panel with spray foam applied between the foam core and the in -let plate. The OSB faces of the Murus Panel shall be secured to the top plate with 8d nails at 4 inches on center. The fasteners on the OSB faces shall be staggered from each other. • A bottom in -let plate, as shown in Figure 4 of this report, shall be provided along the bottom edge of all Murus wall panels. The bottom in -let plate shall consist of 2 -inch by 4 - inch dimension lumber. The foam core of the panel shall be routed to completely embed the in -let plate in the panel, so that the OSB faces of the panel will bear completely on the surface which supports the Murus Panels. The in -let plate is to be fastened securely to the supporting structuro as required by the approved construction documents. The void in the Murus Panel is sprayed with foam, as described above, prior to placing the panel over the in -let plate. The Murus Panel is then secured to the in -let plate on both faces with 8d nails at 4 inches on center. The fasteners on the OSB faces shall be staggered from each other. • Openings in the Murus Panels for door and windows shall be rough framed with 2 -inch by 4 -inch dimension lumber embedded into the foam core of the panel in the same manner as the top and bottom in -let plates, The lumber framing shall be provided on all sides of the opening, as shown in Figure 5 of this report, and shall be secured to the OSB faces of the panel on both sides with 6d nails at 8 inches on center, staggered. • The manufacturer shall provide the user of this report with instructions for the erection of Murus Panels. These instruc- tions shall include, but not be limited to, details of panel to panel and panel to other building components interfaces. • This report is subject to periodic re-examination. For informa- tion on the current status of this report, contact the ICC -ES. ITEMS REQUIRING VERIFICATION The following items are related to the use of the report subject, but are not within the scope of this evaluation. However, these items are related to the determination of code compliance: ✓ Product identification consistent with this report. ✓ Special inspections in accordance with Section 1705.0 of the BOCA® National Building Code/1999, and consistent with the following: • SPECIAL INSPECTIONS Special inspections are required forthe installation of Murus Panels, in that it is work which is of an unusual design wherein installation, fabrication, erection and placement of components requires special expertise to ensure adequacy. Therefore, the Committee's evaluation of Murus Panels is based upon monitoring and control of the installation of Murus Panels through the use of special inspections in accordance with Section 1705.0 of the BOCA® National Building Code/1999. The following items shall be inspected: • Bottom in -let plates, top in -let plates and preparation of rough openings for doors and windows • Foam core of panel properly routed (not over routed) to receive 2 -in by 4 -in nailer • Condition of foam core (clean and dry) • Application of foam spray • Sufficient quantity of spray applied • Ambient temperature/substrate temperature • Appropriate mix proportions of foam • Label on ingredients • Framing of door and window openings • Framing full length on all sides of the opening • Framing properly lapped • Fastening of panel to in -let plates and opening framing • Size of fasteners • Spacing of fasteners • Fasteners on both sides of panel • Cam locks • Properly secured, as required by the manufacturer's installation instructions ✓ Thermal barrier separation, when required, in accordance with Section 2603.4 of the BOCA® National Building Code/1999. ✓ Where installed in roofing applications, roof covering complies with the applicable provisions of Chapter 15 of the BOCA" National Building Code/1999. ✓ Where installed in exterior wall applications, exterior wall covering complies with the applicable provisions of Chapter 14 of the BOCA® National Building Code/1999. INFORMATION SUBMITTED STRUCTURAL • "Structural Evaluation of the Murus Stress -Skin Urethane Sandwich Panel," by Harvey B. Manbeck, P.E., Ph.D, of the NAHB/NRC Designated Housing Research Center at Penn State, dated August 1991, containing the following: • Results of adhesion testing of the OSB facers and the foam plastic core material when subjected to ASTM Standard C481-62 Aging Cycle A. • Results of flatwise tension testing in accordance with ASTM C297. • Results of edgewise compression testing in accordance with ASTM C364. • Results of flatwise compression testing in accordance with ASTM C365. • Results of flexural testing in accordance with ASTM C393. • Results of transverse and compression testing in accor- dance with ASTM E72. Page 3 of 9 97-36 The results of the above test are the basis for Tables 1 through 3 of this report. • Results of horizontal racking testing in accordance with a modified version of ASTM E72 performed on Murus Panels with and without door and window openings. The modification was that no stud framing was provided, and the panels were 10 feet high rather than 8 feet high. The panels were secured to the base beam and top beam of the test assembly with #6 sheetrock screws at 8 inches on center. The results of the testing are given in Table 4 of this report. The door and window openings tested are shown in Figures 6 and 7 of this report. ■ Report No. 30, "Creep Behavior of the Murus Stress -Skin Urethane Composite Sandwich Panel," by Harvey B. Man - beck, P.E., Ph.D, of the NAHB/NRC Designated Housing Research Center at Penn State, dated January 1993, containing results of testing in accordance with Section 1710.3.1 of the BOCA° National Building Code11999. • Celotex Corporation Testing Services, MTS Job No. 258498, dated June 3, 1998 and June 29, 1998, containing results of tensile, compressive, flexural and shear testing of the CIP 14-8557(PPG 442-22D) foam plastic in accordance with ASTM D1623, ASTM D1621, ASTM C203 and ASTM C273. The results indicate that the CIP 14-8557(PPG 442- 22D) foam plastic has structural properties at least equiva- lent to the CIP 1416-HC#2 foam plastic. FOAM PLASTIC • Omega Point Laboratories, Report No. 8926-98159, dated March 2, 1995, containing results of testing of the Flexible Products CIP 1416-HC#2 foam plastic in accordance with ASTM E84 at a thickness of 1 in and 5 3/4 in. • Omega Point Laboratories, Report Nos. 9056-103120 and 9056-103121, dated May 11, 1998, containing results of testing of the Flexible Products CIP 14-8557(PPG 442-22D) foam plastic in accordance with ASTM E84 at a thickness of 5 3/4 in. LABELING • The Murus Company, Quality Control Manual, dated March 1999, Revision D, signed by representatives of the Murus Company and PFS Corporation, containing procedures for the manufacture of the Murus Panel, in-house plant inspec- tions, and product labeling. APPLICATION FOR PERMIT To aid in the determination of compliance with this report, the following represents the minimum level of information to accompany the application for permit: • The language "See ICC -ES Legacy Report No. 97-36" or a copy of this report; • Manufacturer's name. • Product model name and number. ■ Design calculations and details for construction utilizing Murus Panels shall be furnished to the code official verify- ing compliance with this report. The individual preparing such documents shall be competent and qualified in the application of the structural design principals involved, and shall possess the registration or license in accordance with the professional registration laws of the state in which the project is constructed. The calculations shall include, but not be limited to, the following: • The minimum required design loads for the building for the building system, consistent with the requirements of Chapter 16 of the BOCA® National Building Code/1999. • The allowable design loads of the panels, consistent with this report. • The ability of all connections between the panel and adjacent building components to transfer all the imposed design loads to the building foundation and footing system. • Details of panel openings, consistent with this report. ■ Statement of Special Inspections PRODUCT IDENTIFICATION • Murus Panels or product packaging shall be marked at the plant with the identifying language "See ICC -ES Legacy Report No. 97-36." • Additionally, each panel shall bear a label containing the manufacturer name, product name, and identification of the inspection agency, PFS Corporation. This report is subject to re-examination in one year. Page 4 of 9 97-36 FIGURE 1—*MURUS PANELS The panels are 48 inches wide. Cam Locks, if provided, are located 1 ft. from the top and bottom and at 2 ft. intervals in between. r - r_ 1 At FIGURE 2*—CAM LOCK Page 5 of 9 97-36 CONSTRUCTION ADHESIVE 2 ROWS S" GALVANIZED SCREWS 4" O.C.. STAGGERED TOP SILL PLATE RIPPED - TO 4 1/7" COATED SO NAILS 4' O.C. 2X1 TOP IN -LET PLATE 4 I/2" STRUCTURAL INSULATING PANEL (SIP) FIGURE 3*—TOP IN -LET PLATE 2X4 BOTTOM IN -LET PLATE- -- - FASTENERS AS REQUIRED COATED 8D NAILS 1' O.C. PRESSURE TREATED SILL PLATE ANCHOR BOLTS AS - REQUIRED MASONRY FOUNDATION 2'x4' DIMENSION LUMBER FULLY HOUSED AT ROUGH OPENING PERIMETER. ENDS TO BE LAPPED AS SHOWN WON COMMON NAILS 8-8' O.C. 41!2 STRUCTURAL INSULATING WALL PANEL (SIP) FIGURE 4*—BOTTOM IN -LET PLATE r 1 s. / MOOS ROUGH OPENING / \ L• i • • • • rt FIGURE 5*—FRAMING AT ROUGH OPENINGS FOR WINDOWS AND DOORS Page 6 of 9 97-36 TABLE 1 TRANSVERSE LOAD -SPAN TABLE FOR THE MURUS PANEL (Customary Units) UNIFORM TRANSVERSE LOAD' (psfl ALLOWABLE PANEL SPAN 2' 3' 4 (ft - in) DEFLECTION LIMITS L/180 L/240 L/360 L/480 5 20'-8" 18'-9" 16'-4" 14'-9" 10 16'-4" 14'-9" 13'-0" 11'-9" 15 14'-3" 13'-0" 11 '-4" 10'-3" 20 13'-0" ' 11'-9" 10'-3" 9'-4" 25 12'-1 " 11'-0" 9'-7" 8'-8" 30 11'-4" 10'-3" 9'-0" 8'-2" 35 10'-9" 9'-9" _ 8'-7" 7'-9" 40 10'-3" 9.-" 8'-2" 7'-6" 45 9'-11" 9'-0" 7'-10" 7'-2" 50 9'-7" 8'-8" 7'-7" 6'-11" 55 9'-3" 8'-4" 7'-4" 6'-8" 60 9'-0" 8'-2" 7'-2" 6'-6" 65 8'-9" 8'-0" 7'-0" 6'-3" 70 8'-7" 7'-g" 6'-9" 6'-2" 75 8'-4" 7'-7" 6-8" 6'-0" 80 8'-2" 7'-5" 6'-9" 5'-11" 1. Uniform Toad for normal Toad durations only. 2. Values given are for full (four foot) panel widths with facing strands oriented parallel to the panel span assuming proper end support and connections. The transverse load -carrying capacity of panels that contain openings is beyond the scope of this report. 3. Values given are computed from the continuous span uniform deflection equation using the flexural stiffness parameter (EI)g developed from the full scale transverse panel assembly test of the Murus Panel (ASTM E72-80). 4. Design values are for normal load duration under dry use conditions and temperatures Tess than 160°F. Page 7 of 9 97-36 TABLE 2 ALLOWABLE AXIAL LOAD/UNIT WIDTH FOR THE MURUS PANEL WITH NO ECCENTRICITY (Customary Units) TRANSVERSE LOAD' psf ALLOWABLE AXIAL LOAD*'' 2' 3' a Ib/ft PANEL LENGTHS ft 4 5 6 7 8 9 10 11 12 13 14 0 9025 8720 8165 7250 5870 4640 3755 3105 2610 2220 1915 2 8975 8630 8030 7075 5690 4470 3600 2955 2460 2080 1775 4 8920 8540 7900 6905 5510 4310 3445 2805 2315 1940 1635 6 8865 8455 7765 6740 5340 4150 3295 2660 2175 1800 1500 8 8815 8365 7640 6575 5170 3990 3145 2515 2035 1660 1365 10 8760 8275 7510 6415 5005 3840 3000 2375 1900 1530 900* 12 8710 8190 7380 6255 4840 3690 2855 2235 1765 1240* 35* 14 8655 8100 7255 6100 4685 3540 2715 2100 1630 435* NP 16 8600 8015 7130 5950 4530 3395 2575 1965 1180* NP NP 18 8550 7925 7010 5800 4375 3250 2440 1835 440* NP NP 20 8495 7840 6885 5650 4230 3110 2305 1665* NP NP NP 22 8445 7755 6765 5505 4080 2975 2170 990* NP NP NP 24 8390 7670 6645 5365 3940 2835 2040 310* NP NP NP 26 8340 7585 6525 5220 3795 2705 1910 NP NP NP NP 28 8285 7500 6410 5085 3655 2570 1590* NP NP NP NP 30 8235 7415 6295 4945 3520 2440 975* NP NP NP NP * Load limited by L/240 deflection criterion NP = Not Permitted 1. Uniform transverse and axial loads are for normal load durations only. 2. Values given are for full (four foot) panel widths with facing strands oriented parallel to the panel span assuming proper end support and connections. The load -carrying capacity of panels that contain openings is beyond the scope of this report. 3. Values given are computed from the combined load case and limiting deflection criterion using the flexural stiffness parameter (EI)9 developed from the full-scale transverse panel assembly test of the Murus Panel (ASTM E72-80), F° developed from the compression edgewise test of the Murus Panel (ASTM C364-61), Fb from published data for Oriented Strand Board. 4. Design values are for dry end use conditions and temperatures Tess than 160°F. Page 8 of 9 97-36 TABLE 3 ALLOWABLE AXIAL LOAD/UNIT WIDTH FOR THE MURUS PANEL WITH A 0.75 -IN. ECCENTRICITY TRANSVERSE LOAD' psf ALLOWABLE AXIAL LOAD*'. 2, 3' 4 Ib/ft PANEL LENGTHS ft 4 5 6 7 8 9 10 11 12 13 14 0 2 4925 4605 4245 3835 - 3340 2930 2570 2260 1990 1765 1565 4895 4560 4190 3765 3260 2840 2475 2155 1885 1655 1455 4 4870 4520 4135 3695 3180 2755 2380 2055 1780 1545 1345 6 4845 4482 4080 3625 3100 2665 2285 1955 1680 1440 1130* 8 4815 4440 4025 3555 3020 2575 2190 1860 1575 1170* 760* 10 4790 4400 3970 3490 2945 2490 2095 1760 1335* 840* 385* 12 4760 4355 3915 3420 2865 2405 2005 1630* 1045* 510* NP 14 4735 4315 3860 3350 2785 2320 1915 1380* 755* 180* NP 16 4705 4275 3805 3280 2710 2235 1820 1128* 460* NP NP 18 4680 4235 3750 3215 2630 2150 1640* 875* 170* NP NP 20 4650 4195 3695 3145 2555 2065 1420* 620* NP NP NP 22 4625 4155 3640 3080 2480 1980 1205* 365* NP NP NP 24 4595 4115 3585 3010 2400 1895 990* 115* NP NP NP 26 4570 4070 3530 2945 2325 1770* 775* NP NP NP NP 28 4540 4030 3475 2880 2250 1585* 555* NP NP NP NP 30 4515 3990 3420 2810 2175 1405* 340* NP NP NP NP * Load limited by L/240 deflection criterion NP = Not Permitted 1. Uniform transverse and axial loads are for normal load durations only. 2. Values given are for full (four foot) panel widths with facing strands oriented parallel to the panel span assuming proper end support and connections. The load -carrying capacity of panels that contain openings is beyond the scope of this report. 3. Values given are computed from the combined load case and limiting deflection criterion using the flexural stiffness parameter (EI)a developed from the full-scale transverse panel assembly test of the Murus Panel (ASTM E72-80), F° developed from the compression edgewise test of the Murus Panel (ASTM C364-61), Fb from published data for Oriented Strand Board, and an eccentricity of 0.75 inch, the same as required in the compression test of the Murus Panel (ASTM E72-80). 4. Design values are for dry end use conditions and temperatures less than 160°F. Page 9 of 9 97-36 TABLE 4 HORIZONTAL RACKING RESISTANCE OF MURUS PANELS Panel Assembly Allowable Racking Resistance 1 lbs plf Full Panel Assemblies 430 53.75 Panel with Door Opening2 400 50 Panel with Window Opening2 430 53.75 1. The connection at the head and sill of the panel shall conform to Figures 3 and 4 of this report. 2. The size of the door and window openings shall not exceed those shown in Figures 6 and 7 of this report, and the opening shall be rough framing with 2x4 dimension lumber, as shown in Figure 5 of this report. 3. The values in this table were obtained from panels attached with sheet rock screws at 8 inch on center. PANEL SPECIMEN fr TOP LOADING BEAM . MI OOOR ihibifou.:Lia IFI MI w i+x ... ..e. earr.uau LOAD FIGURE 6* PANEL TESTED WITH DOOR OPENING h1 = 12 inches (30 cm) h2 = 84 inches (210 cm) h3 = 24 inches (60 cm) w, =29 1/4 inches (74 cm) w2 = 37 1/2 inches (95 cm) SHEET ROCK SCREWS CBo hSidea) CAM -LOCK CONNECTIONS LOAD CELL FIGURE 7* PANEL TESTED WITH WINDOW OPENING h4 = 42 inches (107 cm) h5 = 54 inches (137 cm) h6 = 24 inches (60 cm) w3 = 8 inches (20 cm) w4 = 32 inches (81 cm) *THESE DRAWINGS ARE FOR ILLUSTRATION PURPOSES ONLY. THEY ARE NOT INTENDED FOR USE AS CONSTRUCTION DOCUMENTS FOR THE PURPOSE OF DESIGN, FABRICATION OR ERECTION.