KERTO USA page 1/12 KERTO INSULATED LVL 3 1/2" AND 5 1/2" THICKNESSES DESIGN VALUES USA
KERTO USA page 2/12 TABLE OF CONTENTS 3 Specification Guide 4 About Kerto Header 5 Insulation Values 6 Maximum Loads for Given Opening by Bearing (PLF) 7 Maximum Loads for Given Opening by Load Deflection Factor (PLF) 8 Roof & Floor Maximum Loads (PLF) 9 Roof Maximum Span Carried 10 Roof and Half Floor Maximum Span Carried 11 Finnwood Engineering Software and Finncut 12 Sustainability and Mission
KERTO USA page 3/12 SPECIFICATION GUIDE 1.0 GENERAL KERTO is a Structural Insulated Header designed to meet the current energy conservation code. It complies with the 2009 IRC. This unique header solution combines two high performance materials into a one-piece, dimensionally stable, structural header with exceptional insulation performance and high-speed installation. Kerto Header s outer structure is comprised of Metsä Wood Kerto Plank Laminated Veneer Lumber, a superior-quality engineered wood that is dimensionally stable and high-load capable. The interior is high-performance BASF Neopor EPS Foam, which contains graphite particles that reflect and absorb radiant heat energy. The header can achieve R-value performances far exceeding those possible with standard white EPS. Kerto Header wall assemblies have a 36% improvement over conventional batt-insulated wall applications and eliminate the possibility of draft and air leakage through the header itself. High load capacity and predictable performance: 2.0 MOE; 2900 FB. 2.0 INTENDED USE This product is intended to be used as headers for roof and floor loads under dry conditions of use, and other industrial applications. 3.0 DIMENSIONS, COMPOSITION AND TOLERANCES Nominal Thickness (inches) 3-1/2 5-1/2 Widths 9-1/4, 11-1/4 9-1/4, 11-1/4 Lengths 16, 24 16, 24 Weight PLF 9-1/4: 5.3 lbs., 11-1/4: 6.4 lbs. 9-1/4: 5.4 lbs., 11-1/4: 6.6 lbs. R-Value Up to 10 Up to 20 MATERIAL 4.0 Veneer Plies: Face, back and inner plies are all of the same species and meet pan European Forest Certification requirements 4.1 Species: Norway Spruce (Picea abies) 4.2 Grade: The grade shall not be below Grade C, per American Product Standard PS 1. 4.3 Thickness: The thickness of each veneer shall be nominal 3.0mm (0.110 ) CONSTRUCTION 5.0 Glue Bond Requirements: The glue shall meet or exceed American Product Standard PS1-Exterior Type. 6.0 Grain Direction: All veneers shall be oriented with the grain direction parallel to the long dimension of the billet. 7.0 Veneer Joints: All individual veneer joints shall be scarfed and staggered, with a distance between joints of not less than 4 (10.16 cm). MANUFACTURE 8.0 Finished Product 8.1 Widths: Widths shall be cut within tolerances given and with square clean edges, for each order. 8.2 Lengths: Lengths shall be cut within tolerances given and with square clean edges, for each order. 8.3 Surface: Surface may be sanded or unsanded as required by order. 8.4 Surface: Surface (face) veneer and may be grade A (clear) if requested. 8.5 Surface: To enhance dimensional stability, seal coating can be provided upon request. QUALITY CONTROL 9.0 KERTO-Q LVL is manufactured under the ISO 9001 quality certification system. Quality control shall be under the supervision of the Technical Research Centre of Finland, Helsinki, Finland. IDENTIFICATION 10.0 KERto
KERTO USA page 4/12 HIGH PERFORMANCE MATERIALS Metsä Wood and BASF are industry leaders in insulating products and structural components. Quality engineered Nordic woods from managed forests give this structural header dimensional stability and high load capacity. The BASF Neopor EPS foam insulation material in Kerto Header out-performs standard white EPS. Because it is a single component and as it is made with predictable dimensions and fine tolerances, workers can install Kerto Header with greater speed and accuracy, saving time and materials. R-VALUE LEADER The BASF Neopor EPS foam used in Kerto Header achieves higher R-value performance than standard EPS foams because it contains graphite particles that reflect and absorb radiant heat energy. Wall assemblies using Kerto Header offer a 36% improvement over standard applications that use sawn lumber and fiberglass batts. Kerto Header also eliminates the possibility of draft and air leakage through the header itself because of its single-component construction. It complies with the 2009 International Residential Code and carries a 20-year, 100% R-value warranty. Kerto Header is the R-value leader that puts high performance materials to work for you.
KERTO USA page 5/12 INSULATION VALUES KERTO PLANK LVL 5-1/2 THICK INSULATED COMPARED TO CONVENTIONAL 5-1/2 THICK WITH BATT INSULATION Material Kerto Plank R-Values Conventional R-Values Outside (moving) air boundary layer 0.17 0.17 Wood siding 0.80 0.80 1/2 in plywood sheathing 0.63 0.63 2 - members 1.18 in Kerto Plank LVL 2.62 3-1/8 in BASF Neopor Type VIII (EPS) 40 F 15.09 2 - members 1-1/2 in solid sawn lumber 3.00 2-1/2 in fiberglass batt insulation 9.30 1/2 in gypsum wall board 0.45 0.45 Inside (still) vertical air boundary layer 0.68 0.68 Total R-Value: header materials 17.71 12.30 Total R-Value: wall + header materials 20.44 15.03 TYPICAL DETAIL Top Plate Continuous Over Header Depth 2-Jack Studs at Each End of Header Rough Opening (Beam Clear Span) Studs 16" O.C. (Typical)
KERTO USA page 6/12 MAXIMUM LOADS FOR GIVEN OPENING BY BEARING (PLF) LOAD DURATION FACTOR C d = 1.00 FOR SIMPLE SPAN CONDITIONS R12 3.5" Thick; R20 5.5" Thick Live Load Deflection Limit L/360; Total Load Deflection Limit L/240 Bearing Length (in) 1.5" Bearing = 1 Jack Stud 3" Bearing = 2 Jack Studs 4.5" Bearing = 3 Jack Studs Span (ft) Header Depth (in) 7.25 9.25 11.25 7.25 9.25 11.25 7.25 9.25 11.25 4 Live Load (plf) 1541 1541 1541 2617 3082 3082 2617 3792 4624 Total Load (plf) 1541 1541 1541 2617 3082 3082 2617 3792 4624 5 Live Load (plf) 1233 1233 1233 1689 2466 2466 1689 2696 3628 Total Load (plf) 1233 1233 1233 1726 2466 2466 1726 2696 3628 6 Live Load (plf) 977 1027 1027 977 1881 2055 977 1881 2702 Total Load (plf) 1027 1027 1027 1198 1881 2055 1198 1881 2702 7 Live Load (plf) 616 881 881 616 1278 1761 616 1278 1985 Total Load (plf) 881 881 881 881 1382 1761 881 1382 1985 8 Live Load (plf) 412 771 771 412 856 1520 412 856 1520 Total Load (plf) 619 771 771 619 1058 1520 619 1058 1520 9 Live Load (plf) 290 602 685 290 602 1082 290 602 1082 Total Load (plf) 434 685 685 434 836 1201 434 836 1201 10 Live Load (plf) 211 439 616 211 439 789 211 439 789 Total Load (plf) 317 616 616 317 658 973 317 658 973 11 Live Load (plf) 159 329 560 159 329 593 159 329 593 Total Load (plf) 238 494 560 238 494 804 238 494 804 12 Live Load (plf) 122 254 457 122 254 457 122 254 457 Total Load (plf) 183 381 514 183 381 675 183 381 675 13 Live Load (plf) 96 200 359 96 200 359 96 200 359 Total Load (plf) 144 299 474 144 299 539 144 299 539 14 Live Load (plf) 77 160 287 77 160 287 77 160 287 Total Load (plf) 115 240 431 115 240 431 115 240 431 15 Live Load (plf) 63 130 234 63 130 234 63 130 234 Total Load (plf) 94 195 351 94 195 351 94 195 351 16 Live Load (plf) 52 107 193 52 107 193 52 107 193 Total Load (plf) 77 161 289 77 161 289 77 161 289 17 Live Load (plf) 43 89 161 43 89 161 43 89 161 Total Load (plf) 64 134 241 64 134 241 64 134 241 18 Live Load (plf) 36 75 135 36 75 135 36 75 135 Total Load (plf) 54 113 203 54 113 203 54 113 203 Headers are 3.5" thick or 5.5" thick: 2-members 1.181" LVL & 1.138" or 3.125" BASF Neopor Type VIII insulation at 40 F Table is for simple span headers only (Headers with support at each end). Bearing Length based on Header; Fcp = 870 psi PER12235
KERTO USA page 7/12 MAXIMUM LOADS FOR GIVEN OPENING BY LOAD DEFLECTION FACTOR (PLF) LOAD DURATION FACTOR C d = 1.00, 1.15, 1.60 FOR SIMPLE SPAN CONDITIONS R12 3.5" Thick; R20 5.5" Thick Live Load Deflection Limit L/360; Total Load Deflection Limit L/240 C d 1.00 1.15 1.60 Span (ft) Header Depth (in) 7.25 9.25 11.25 7.25 9.25 11.25 7.25 9.25 11.25 3 Live Load (plf) 4078 6392 10078 4690 7351 11590 6525 10228 16125 Total Load (plf) 4078 6392 10078 4690 7351 11590 6525 10228 16125 Min Bearing (in) 3.0 5.0 7.5 3.5 5.5 8.5 5.0 7.5 12.0 4 Live Load (plf) 2617 3792 5335 3010 4361 6136 3299 6067 8537 Total Load (plf) 2617 3792 5335 3010 4361 6136 3299 6067 8537 Min Bearing (in) 3.0 4.0 5.5 3.0 4.5 6.0 4.5 6.0 8.5 5 Live Load (plf) 1689 2696 3628 1689 3100 4172 1689 3508 5805 Total Load (plf) 1726 2696 3628 1985 3100 4172 2534 4313 5805 Min Bearing (in) 2.5 3.5 4.5 2.5 4.0 5.5 3.5 5.5 7.5 6 Live Load (plf) 977 1881 2702 977 2030 3107 977 2030 3652 Total Load (plf) 1198 1991 2702 1378 2163 3107 1466 3009 4323 Min Bearing (in) 2.0 3.0 4.0 2.5 3.5 5.0 2.5 4.5 6.5 7 Live Load (plf) 616 1278 1985 646 1278 2283 616 1278 2300 Total Load (plf) 881 1382 1985 923 1589 2283 923 1918 3176 Min Bearing (in) 1.5 2.5 3.5 2.0 3.0 4.0 2.0 3.5 5.5 8 Live Load (plf) 412 856 1520 412 856 1541 412 856 1541 Total Load (plf) 619 1058 1520 619 1217 1748 619 1285 2311 Min Bearing (in) 1.5 2.5 6.0 1.5 2.5 3.5 1.5 3.0 4.5 9 Live Load (plf) 290 602 1082 290 602 1082 290 602 1082 Total Load (plf) 434 836 1201 464 902 1381 464 902 1623 Min Bearing (in) 1.5 2.0 3.0 1.5 2.0 3.5 1.5 2.0 4.0 10 Live Load (plf) 211 439 789 211 439 789 211 439 789 Total Load (plf) 317 658 973 317 658 1119 317 658 1183 Min Bearing (in) 1.5 2.0 2.5 1.5 2.0 3.0 1.5 2.0 3.0 11 Live Load (plf) 159 329 593 159 329 593 159 329 593 Total Load (plf) 238 494 804 238 494 889 238 494 889 Min Bearing (in) 1.5 1.5 2.25 1.5 1.5 2.5 1.5 1.5 2.5 12 Live Load (plf) 122 254 457 122 254 457 122 254 457 Total Load (plf) 183 381 675 183 381 685 183 381 685 Min Bearing (in) 1.5 4.5 2.0 1.5 1.5 2.0 1.5 1.5 2.0 13 Live Load (plf) 96 200 359 96 200 359 96 200 359 Total Load (plf) 144 299 539 144 299 539 144 299 539 Min Bearing (in) 1.5 1.5 2.0 1.5 1.5 2.0 1.5 1.5 2.0 14 Live Load (plf) 77 160 287 77 160 287 77 160 287 Total Load (plf) 115 240 431 115 240 431 115 240 431 Min Bearing (in) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 15 Live Load (plf) 63 130 234 63 130 234 63 130 234 Total Load (plf) 94 195 351 94 195 351 94 195 351 Min Bearing (in) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 16 Live Load (plf) 52 107 193 52 107 193 52 107 193 Total Load (plf) 77 161 289 77 161 289 77 161 289 Min Bearing (in) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 17 Live Load (plf) 43 89 161 43 89 161 43 89 161 Total Load (plf) 64 134 241 64 134 241 64 134 241 Min Bearing (in) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Headers are 3.5" thick or 5.5" thick: 2-members 1.181" LVL & 1.138" or 3.125" BASF Neopor Type VIII insulation at 40 F. Table is for simple span headers only (Headers with support at each end). PER12235
KERTO USA page 8/12 ROOF & FLOOR MAXIMUM LOADS IN POUNDS PER LINEAL FOOT ROOF LOAD: LOAD DURATION FACTOR C d = 1.15 SNOW FOR SIMPLE SPAN CONDITIONS Roof Table Live Load Deflection Limit L / 240; Total Load Deflection Limit L /160 2-1.181 x 7-1/4 Live Load (plf) 955 1195 531 531 280 280 165 165 Total Load (plf) 955 1195 693 693 369 369 216 216 2-1.181 x 9-1/4 Live Load (plf) 955 1838 727 1087 581 581 343 343 Total Load (plf) 955 1838 727 1087 585 708 453 453 2-1.181 x 11-1/4 Live Load (plf) 955 1838 727 1412 585 1017 490 618 Total Load (plf) 955 1838 727 1412 585 1017 490 713 FLOOR LOAD: LOAD DURATION FACTOR C d = 1.00 FOR SIMPLE SPAN CONDITIONS May also be used for roof and floor load. Floor Table Live Load Deflection Limit L / 360; Total Load Deflection Limit L /240 2-1.181 x 7-1/4 Live Load (plf) 799 799 354 354 186 186 110 110 Total Load (plf) 954 1040 527 527 275 275 161 161 2-1.181 x 9-1/4 Live Load (plf) 954 1626 726 735 387 387 229 229 Total Load (plf) 954 1626 726 946 577 577 338 338 2-1.181 x 11-1/4 Live Load (plf) 954 1838 725 1322 596 697 412 412 Total Load (plf) 954 1838 726 1356 585 884 612 612 How to use Maximum Load (PLF) Tables: 1. Calculate the live load (PLF). Select a header with equal or greater capacity in the live load row. 2. Calculate the total load (PLF). Select a header with equal or greater capacity in the total load row. The header you select must satisfy both requirements for live and total load. Tables are for simple span headers only - headers with a support at each end. Allowable stresses used to calculate roof values are increased where permitted by a load duration factor of 1.15 for snow loads.
KERTO USA page 9/12 ROOF MAXIMUM SPAN CARRIED Span Carried Rough Opening (Beam Clear Span) ROOF LOAD ONLY: Roof loads include a 2-0 overhang. Roof/Snow: Live Load (PSF) / Dead Load (PSF)= 25/15 2-1.181 x 7-1/4 Span Carried (ft - in) 43-6 55-6 31-6 30-8 14-0 14-0 6-6 6-6 2-1.181 x 9-1/4 Span Carried (ft - in) 43-6 88-0 32-0 50-0 25-0 31-0 18-6 18-6 2-1.181 x 11-1/4 Span Carried (ft - in) 43-6 88-0 32-0 66-0 25-0 46-6 20-0 31-6 Roof/Snow: Live Load (PSF) / Dead Load (PSF)= 30/15 2-1.181 x 7-1/4 Span Carried (ft - in) 38-0 49-0 26-6 26-6 12-0 12-0 2-1.181 x 9-1/4 Span Carried (ft - in) 38-0 77-0 28-0 44-0 22-0 27-0 16-0 16-0 2-1.181 x 11-1/4 Span Carried (ft - in) 38-0 77-0 28-0 57-0 22-0 41-0 17-6 27-6 Roof/Snow: Live Load (PSF) / Dead Load (PSF)= 40/15 2-1.181 x 7-1/4 Span Carried (ft - in) 30-6 39-0 21-0 21-0 9-0 9-0 2-1.181 x 9-1/4 Span Carried (ft - in) 30-6 62-0 22-0 35-0 17-0 21-0 12-0 12-0 2-1.181 x 11-1/4 Span Carried (ft - in) 30-6 62-0 22-0 46-0 17-0 32-6 13-6 21-0 Headers are 5.5" thick: 2-members 1.181" LVL & 3.125" BASF Neopor Type VIII insulation at 40 F. Table is for simple span headers only (Headers with support at each end).
KERTO USA page 10/12 ROOF AND HALF FLOOR MAXIMUM SPAN CARRIED Support Span Carried Rough Opening (Beam Clear Span) ROOF AND HALF FLOOR LOAD: Includes 100 PLF wall load; requires interior support at mid span of floor joists. Floor: Live Load (PSF) / Dead Load (PSF)= 40/12 + Roof/Snow: Live Load (PSF) / Dead Load (PSF)= 25/15 2-1.181 x 7-1/4 Span Carried (ft - in) 28-6 37-6 13-0 13-0 Min Bearing (in) 1.5 3 1.5 3 2-1.181 x 9-1/4 Span Carried (ft - in) 28-6 58-0 20-0 33-0 14-6 14-6 6-0 6-0 2-1.181 x 11-1/4 Span Carried (ft - in) 28-6 58-0 20-0 45-0 15-0 31-0 11-6 16-0 Floor: Live Load (PSF) / Dead Load (PSF)= 40/12 + Roof/Snow: Live Load (PSF) / Dead Load (PSF)= 30/15 2-1.181 x 7-1/4 Span Carried (ft - in) 26-6 34-0 12-0 12-0 Min Bearing (in) 1.5 3 1.5 3 2-1.181 x 9-1/4 Span Carried (ft - in) 26-6 57-0 18-6 31-0 13-6 13-6 5-6 5-6 2-1.181 x 11-1/4 Span Carried (ft - in) 26-6 57-0 18-6 42-0 14-0 28-6 10-6 14-6 Floor: Live Load (PSF) / Dead Load (PSF)= 40/12 + Roof/Snow: Live Load (PSF) / Dead Load (PSF)= 40/15 2-1.181 x 7-1/4 Span Carried (ft - in) 23-0 23-0 10-0 10-0 Min Bearing (in) 1.5 3 1.5 3 2-1.181 x 9-1/4 Span Carried (ft - in) 23-0 49-6 16-0 27-0 11-6 11-6 Min Bearing (in) 1.5 3 1.5 3 1.5 3 2-1.181 x 11-1/4 Span Carried (ft - in) 23-0 49-6 16-0 37-0 11-6 25-0 9-0 12-6 Headers are 5.5" thick: 2-members 1.181" LVL & 3.125" BASF Neopor Type VIII insulation at 40 F. Table is for simple span headers only (Headers with support at each end).
KERTO USA page 11/12 FINNWOOD ENGINEERING SOFTWARE Finnwood is a new single beam sizing software to optimize the application use of Metsä Wood LVL products in floor, wall, and roof applications. Finnwood designs the floor and roof structures according to the valid building codes and national design specifications or standards for wood construction ANSI/AF&PA NDS-2005 National Design Specification for Wood Construction, loads from 2006 ICC International Building Code (IBC) and International Residential Code (IRC) and their supplements for commentaries. FINNCUT MAXIMIZES YIELDS Finncut is an inventory control and management program designed to maximize beam yields and minimizing waste in the cutting process, therefore maximizing profitability of Kerto Plank beam and header LVL. To receive information on Finncut engineering software, and how you may use it to help in specification of Metsä Wood products, call Metsä Wood US at.
KERTO USA page 12/12 SUSTAINABILITY Metsä Wood is a pioneer in implementing the principals of sustainability in its operations. The Group is committed to complying with the ten principles of the UN's Global Compact project, on which our own sustainability principles are based. Metsä Group has updated the policies guiding its operations and composed a Code of Conduct for suppliers of goods and services and for managing the entire supply chain. Metsä Group also defined the key themes for sustainability and composed a strategic sustainability plan with Group Level target based on it. All wood products manufactured by Metsä Wood are made of eco-friendly Norway Spruce veneer from certified forests verified by PEFC. MISSION Metsä Group s vision is to be a focused and profitable Finnish forest products company that operates in the international market, and that integrates customer-orientation, sustainability, and innovations in its products and services in a unique way. To receive more information on Metsä Wood products, and shipping within the US: Metsä Wood US 3071 Commerce Drive, Suite Fort Gratiot, MI 48059 Phone 810 824 4901 Fax