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PROJECT NUMBER:PLOT DATE:757 FREDERICK ROAD
SUITE 202
CATONSVILLE, MD 21228
(410) 461-7763
JSRASSOCIATES.NET
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Professional Certification:
SHANNON D. STROTMAN, PE
REGISTRATION #: PE11300227
STATUS:
REVISION LOG
REV # DATE DESCRIPTION
DRAWN BY:
SHEET NO.
SHEET NAME
BUILDER:12/21/2020 5:07:05 PMGENERAL NOTES AND LEGENDS
29012
CADD
S002 James MilesPERMIT2080 W 106th Street, Carmel, IN 46032WOOD
1. MATERIALS:
A. FRAMING LUMBER:
1. 2 x 8 AND LARGER: NO. 1 GRADE OR BETTER SOUTHERN PINE KILN DRIED.
2. 2 x 4 AND 2 x 6: STUD GRADE OR BETTER SPRUCE PINE FIR KILN DRIED.
3. 4 x 4 AND 6 x 6: NO. 2 GRADE OR BETTER PRESSURE TREATED SOUTHERN PINE.
4. PRESSURE TREATED LUMBER: NO. 1 GRADE OR BETTER SOUTHERN PINE WITH ACQ
(ALKALINE COPPER QUAT), CBA-A, CA-C, CA-B (COPPER AZOLE), OR BORATE
PRESSURE TREATED LUMBER (SILL PLATES ONLY): PRESSURE TREAT TO AWPA USE
CATEGORY UC2 FOR SILL PLATES; UC3B FOR ABOVE GROUND EXTERIOR DECKING,
STAIRS, RAILINGS, ETC.; AND UC4A FOR GROUND CONTACT.
B. SHEATHING & SUBFLOORING:
1. MATERIALS:
a. ROOF SHEATHING: 19/32” APA SPAN RATING 40/20 ROOF SHEATHING EXPOSURE
1. INSTALL PANEL CLIP THAT PRODUCES AN 1/8” SPACE BETWEEN PANELS AT
MIDSPAN OF EACH TRUSS/RAFTER SPACE ALONG UNSUPPORTED SHEATHING
EDGES.
<OR>
ROOF SHEATHING (FIRE RESISTANT TREATED PLYWOOD): 19/32” DRICON SPAN
RATING 32/16 MANUFACTURED BY ARCH. INSTALL PANEL CLIP THAT CREATES AN
1/8” SPACE BETWEEN PANELS AT MIDSPAN OF EACH TRUSS/RAFTER SPACE
ALONG UNSUPPORTED SHEATHING EDGES.
b. WALL SHEATHING: 7/16” APA SPAN RATING 24/16 WALL SHEATHING EXPOSURE 1.
2. CONNECTIONS: ALL SHEATHING SHALL BE NAILED TO WOOD FRAMING WITH 8d
NAILS AT 6" ON CENTER AT PANEL EDGES, 12" ON CENTER AT INTERMEDIATE
SUPPORTS UNLESS NOTED OTHERWISE.
C. ADHESIVE FOR SUBFLOORING: SHALL CONFORM TO PERFORMANCE SPECIFICATION
AFG-01 DEVELOPED BY APA.
D. GLUED LAMINATED TIMBER:
1. MATERIALS, MANUFACTURER AND QUALITY CONTROL SHALL BE IN CONFORMANCE
WITH AITC 117-87 "DESIGN STANDARD SPECIFICATIONS FOR STRUCTURAL GLUED
LAMINATED TIMBER FOR SOFTWOOD SPECIES" AND ANSI/AITC A190.1-1991
"STRUCTURAL GLUED LAMINATED TIMBER", AND ASTM D3737.
2. WOOD SPECIES SHALL BE SOUTHERN PINE.
3. LAMINATION COMBINATION SHALL BE 24F-V3-SP.
4. ADHESIVES SHALL MEET THE REQUIREMENTS FOR WET CONDITION OF SERVICE.
5. APPEARANCE OF MEMBERS SHALL BE PREMIUM GRADE.
6. MEMBERS SHALL BE INDIVIDUALLY WRAPPED.
7. SHOP DETAILS SHALL BE FURNISHED BY THE FABRICATOR AND APPROVAL OBTAINED
FROM THE BUYER BEFORE WORK IS COMMENCED.
8. GLUED LAMINATED MEMBERS EXPOSED TO WEATHER OR HIGH MOISTURE SHALL BE
PRESSURE TREATED PRIOR TO GLUING WITH PENTACHLOROPHENOL IN MINERAL
SPIRITS IN ACCORDANCE WITH AITC 109 “STANDARD FOR PRESERVATIVE TREATMENT
OF STRUCTURAL GLUED-LAMINATED TIMBER.” AND MEMBERS SHALL HAVE (2) COATS
OF FIELD APPLIED SEALER.
9. CONTRACTOR SHALL SUBMIT SHOP DRAWINGS FOR REVIEW BY ENGINEER PRIOR TO
FABRICATION. SHOP DRAWINGS SHALL BEAR THE SEAL OF A PROFESSIONAL
ENGINEER WHO IS REGISTERED IN THE STATE THE PROJECT OCCURS, AND SHALL
SHOW ALL DESIGN AND FABRICATION DATA.
SECTION 061753 - SHOP-FABRICATED WOOD TRUSSES
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. DRAWINGS AND GENERAL PROVISIONS OF THE CONTRACT, INCLUDING GENERAL AND
SUPPLEMENTARY CONDITIONS AND DIVISION 01 SPECIFICATION SECTIONS, APPLY TO
THIS SECTION.
1.2 SUMMARY
A. SECTION INCLUDES:
1. WOOD ROOF TRUSSES.
2. WOOD GIRDER TRUSSES.
1.3 DEFINITIONS
A. METAL-PLATE-CONNECTED WOOD TRUSSES: PLANAR STRUCTURAL UNITS CONSISTING
OF METAL-PLATE-CONNECTED MEMBERS FABRICATED FROM DIMENSION LUMBER AND
CUT AND ASSEMBLED BEFORE DELIVERY TO PROJECT SITE.
1.4 ACTION SUBMITTALS
A. SHOP DRAWINGS: SHOW FABRICATION AND INSTALLATION DETAILS FOR TRUSSES.
1. SHOW LOCATION, PITCH, SPAN, CAMBER, CONFIGURATION, AND SPACING FOR EACH
TYPE OF TRUSS REQUIRED.
2. INDICATE SIZES, STRESS GRADES, AND SPECIES OF LUMBER.
3. INDICATE LOCATIONS OF PERMANENT BRACING REQUIRED TO PREVENT BUCKLING
OF INDIVIDUAL TRUSS MEMBERS DUE TO DESIGN LOADS.
4. INDICATE LOCATIONS, SIZES, AND MATERIALS FOR PERMANENT BRACING REQUIRED
TO PREVENT BUCKLING OF INDIVIDUAL TRUSS MEMBERS DUE TO DESIGN LOADS.
5. INDICATE TYPE, SIZE, MATERIAL, FINISH, DESIGN VALUES, ORIENTATION, AND
LOCATION OF METAL CONNECTOR PLATES.
6. SHOW SPLICE DETAILS AND BEARING DETAILS.
B. DELEGATED-DESIGN SUBMITTAL: FOR METAL-PLATE-CONNECTED WOOD TRUSSES
INDICATED TO COMPLY WITH PERFORMANCE REQUIREMENTS AND DESIGN CRITERIA,
INCLUDING ANALYSIS DATA SIGNED AND SEALED BY THE QUALIFIED LICENSED INDIANA
PROFESSIONAL ENGINEER RESPONSIBLE FOR THEIR PREPARATION.
1.5 INFORMATIONAL SUBMITTALS
A. QUALIFICATION DATA: FOR METAL CONNECTOR-PLATE MANUFACTURER, PROFESSIONAL
ENGINEER, AND FABRICATOR.
B. MATERIAL CERTIFICATES: FOR DIMENSION LUMBER SPECIFIED TO COMPLY WITH
MINIMUM SPECIFIC GRAVITY. INDICATE SPECIES AND GRADE SELECTED FOR EACH USE
AND SPECIFIC GRAVITY.
C. PRODUCT CERTIFICATES: FOR METAL-PLATE-CONNECTED WOOD TRUSSES, SIGNED BY
OFFICER OF TRUSS-FABRICATING FIRM.
D. EVALUATION REPORTS: FOR THE FOLLOWING, FROM ICC-ES:
1. METAL-PLATE CONNECTORS.
2. METAL TRUSS ACCESSORIES.
1.6 QUALITY ASSURANCE
A. METAL CONNECTOR-PLATE MANUFACTURER QUALIFICATIONS: A MANUFACTURER THAT
IS A MEMBER OF TPI AND THAT COMPLIES WITH QUALITY-CONTROL PROCEDURES IN TPI 1
FOR MANUFACTURE OF CONNECTOR PLATES.
1. MANUFACTURER'S RESPONSIBILITIES INCLUDE PROVIDING PROFESSIONAL
ENGINEERING SERVICES NEEDED TO ASSUME ENGINEERING RESPONSIBILITY.
2. ENGINEERING RESPONSIBILITY: PREPARATION OF SHOP DRAWINGS AND
COMPREHENSIVE ENGINEERING ANALYSIS BY A QUALIFIED PROFESSIONAL
ENGINEER.
B. FABRICATOR QUALIFICATIONS: SHOP THAT PARTICIPATES IN A RECOGNIZED QUALITY-
ASSURANCE PROGRAM, COMPLIES WITH QUALITY-CONTROL PROCEDURES IN TPI 1, AND
INVOLVES THIRD-PARTY INSPECTION BY AN INDEPENDENT TESTING AND INSPECTING
AGENCY ACCEPTABLE TO ARCHITECT AND AUTHORITIES HAVING JURISDICTION.
1.7 DELIVERY, STORAGE, AND HANDLING
A. HANDLE AND STORE TRUSSES TO COMPLY WITH RECOMMENDATIONS IN SBCA BCSI,
"BUILDING COMPONENT SAFETY INFORMATION: GUIDE TO GOOD PRACTICE FOR
HANDLING, INSTALLING, RESTRAINING, & BRACING METAL PLATE CONNECTED WOOD
TRUSSES."
1. STORE TRUSSES FLAT, OFF OF GROUND, AND ADEQUATELY SUPPORTED TO
PREVENT LATERAL BENDING.
2. PROTECT TRUSSES FROM WEATHER BY COVERING WITH WATERPROOF SHEETING,
SECURELY ANCHORED.
3. PROVIDE FOR AIR CIRCULATION AROUND STACKS AND UNDER COVERINGS.
B. INSPECT TRUSSES SHOWING DISCOLORATION, CORROSION, OR OTHER EVIDENCE OF
DETERIORATION. DISCARD AND REPLACE TRUSSES THAT ARE DAMAGED OR DEFECTIVE.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. DELEGATED DESIGN: ENGAGE A QUALIFIED PROFESSIONAL ENGINEER LICENSED IN
INDIANA STATE TO DESIGN METAL-PLATE-CONNECTED WOOD TRUSSES.
B. STRUCTURAL PERFORMANCE: METAL-PLATE-CONNECTED WOOD TRUSSES SHALL BE
CAPABLE OF WITHSTANDING DESIGN LOADS WITHIN LIMITS AND UNDER CONDITIONS
INDICATED. COMPLY WITH REQUIREMENTS IN TPI 1 UNLESS MORE STRINGENT
REQUIREMENTS ARE SPECIFIED BELOW.
1. DESIGN LOADS: AS INDICATED.
2. MAXIMUM DEFLECTION UNDER DESIGN LOADS: ROOF TRUSSES VERTICAL
DEFLECTION OF 1/360 OF SPAN.
C. COMPLY WITH APPLICABLE REQUIREMENTS AND RECOMMENDATIONS OF TPI 1, TPI DSB,
AND SBCA BCSI.
D. WOOD STRUCTURAL DESIGN STANDARD: COMPLY WITH APPLICABLE REQUIREMENTS IN
AF&PA'S "NATIONAL DESIGN SPECIFICATIONS FOR WOOD CONSTRUCTION" AND ITS
"SUPPLEMENT."
E. PROVIDED BRACING AS REQUIRED TO TRANSFER HORIZONTAL LOADS TO SHEAR WALLS.
2.2 DIMENSION LUMBER
A. LUMBER: DOC PS 20 AND APPLICABLE RULES OF ANY RULES-WRITING AGENCY CERTIFIED
BY THE AMERICAN LUMBER STANDARD COMMITTEE (ALSC) BOARD OF REVIEW. PROVIDE
LUMBER GRADED BY AN AGENCY CERTIFIED BY THE ALSC BOARD OF REVIEW TO
INSPECT AND GRADE LUMBER UNDER THE RULES INDICATED.
1. FACTORY MARK EACH PIECE OF LUMBER WITH GRADE STAMP OF GRADING AGENCY.
2. FOR EXPOSED LUMBER INDICATED TO RECEIVE A STAINED OR NATURAL FINISH, OMIT
GRADE STAMP AND PROVIDE CERTIFICATES OF GRADE COMPLIANCE ISSUED BY
GRADING AGENCY.
3. PROVIDE DRESSED LUMBER, S4S.
4. PROVIDE DRY LUMBER WITH 15 PERCENT MAXIMUM MOISTURE CONTENT AT TIME OF
DRESSING.
B. MINIMUM CHORD SIZE FOR ROOF TRUSSES: 2 BY 6 INCHES NOMINAL (38 BY 140 MM
ACTUAL) FOR BOTH TOP AND BOTTOM CHORDS.
C. MINIMUM SPECIFIC GRAVITY FOR TOP CHORDS: 0.50.
D. PERMANENT BRACING: PROVIDE WOOD BRACING THAT COMPLIES WITH REQUIREMENTS
FOR MISCELLANEOUS LUMBER.
2.3 WOOD-PRESERVATIVE-TREATED LUMBER
A. PRESERVATIVE TREATMENT BY PRESSURE PROCESS: AWPA U1;
USE CATEGORY UC2 FOR INTERIOR CONSTRUCTION NOT IN CONTACT WITH THE
GROUND, USE CATEGORY UC3B FOR EXTERIOR CONSTRUCTION NOT IN CONTACT WITH
THE GROUND.
1. PRESERVATIVE CHEMICALS: ACCEPTABLE TO AUTHORITIES HAVING JURISDICTION
AND CONTAINING NO ARSENIC OR CHROMIUM.
2. FOR EXPOSED TRUSSES INDICATED TO RECEIVE A STAINED OR NATURAL FINISH, USE
CHEMICAL FORMULATIONS THAT DO NOT REQUIRE INCISING, CONTAIN COLORANTS,
BLEED THROUGH, OR OTHERWISE ADVERSELY AFFECT FINISHES.
B. KILN-DRY LUMBER AFTER TREATMENT TO A MAXIMUM MOISTURE CONTENT OF 19
PERCENT. DO NOT USE MATERIAL THAT IS WARPED OR DOES NOT COMPLY WITH
REQUIREMENTS FOR UNTREATED MATERIAL.
C. MARK LUMBER WITH TREATMENT QUALITY MARK OF AN INSPECTION AGENCY APPROVED
BY THE ALSC BOARD OF REVIEW.
D. APPLICATION: TREAT ALL TRUSSES UNLESS OTHERWISE INDICATED.
2.4 METAL CONNECTOR PLATES
A. FABRICATE CONNECTOR PLATES TO COMPLY WITH TPI 1.
B. HOT-DIP GALVANIZED-STEEL SHEET: ASTM A653/A653M; STRUCTURAL STEEL (SS), HIGH-
STRENGTH LOW-ALLOY STEEL TYPE A (HSLAS TYPE A), OR HIGH-STRENGTH LOW-ALLOY
STEEL TYPE B (HSLAS TYPE B); G60 (Z180) COATING DESIGNATION; AND NOT LESS THAN
0.036 INCH (0.9 MM) THICK.
1. USE FOR INTERIOR LOCATIONS UNLESS OTHERWISE INDICATED.
C. HOT-DIP HEAVY-GALVANIZED-STEEL SHEET: ASTM A653/A653M; STRUCTURAL STEEL (SS),
HIGH-STRENGTH LOW-ALLOY STEEL TYPE A (HSLAS TYPE A), OR HIGH-STRENGTH LOW-
ALLOY STEEL TYPE B (HSLAS TYPE B); G185 (Z550) COATING DESIGNATION; AND NOT LESS
THAN 0.036 INCH (0.9 MM) THICK.
1. USE FOR WOOD-PRESERVATIVE-TREATED LUMBER AND WHERE INDICATED.
2.5 FASTENERS
A. PROVIDE FASTENERS OF SIZE AND TYPE INDICATED THAT COMPLY WITH REQUIREMENTS
SPECIFIED IN THIS ARTICLE FOR MATERIAL AND MANUFACTURE.
1. PROVIDE FASTENERS FOR USE WITH METAL FRAMING ANCHORS THAT COMPLY WITH
WRITTEN RECOMMENDATIONS OF METAL FRAMING MANUFACTURER.
2. WHERE TRUSSES ARE EXPOSED TO WEATHER, IN GROUND CONTACT, MADE FROM
PRESSURE-PRESERVATIVE TREATED WOOD, OR IN AREA OF HIGH RELATIVE
HUMIDITY, PROVIDE FASTENERS WITH HOT-DIP ZINC COATING COMPLYING WITH
ASTM A153/A153M.
B. NAILS, BRADS, AND STAPLES: ASTM F1667.
SECTION 061753 - SHOP-FABRICATED WOOD TRUSSES (CONTINUED)
2.6 METAL FRAMING ANCHORS AND ACCESSORIES
A. ALLOWABLE DESIGN LOADS, AS PUBLISHED BY MANUFACTURER, SHALL COMPLY WITH
OR EXCEED THOSE OF BASIS-OF-DESIGN PRODUCTS. MANUFACTURER'S PUBLISHED
VALUES SHALL BE DETERMINED FROM EMPIRICAL DATA OR BY RATIONAL ENGINEERING
ANALYSIS AND DEMONSTRATED BY COMPREHENSIVE TESTING PERFORMED BY A
QUALIFIED INDEPENDENT TESTING AGENCY. FRAMING ANCHORS SHALL BE PUNCHED
FOR FASTENERS ADEQUATE TO WITHSTAND SAME LOADS AS FRAMING ANCHORS.
B. GALVANIZED-STEEL SHEET: HOT-DIP, ZINC-COATED STEEL SHEET COMPLYING WITH
ASTM A653/A653M, G60 (Z180) COATING DESIGNATION.
1. USE FOR INTERIOR LOCATIONS UNLESS OTHERWISE INDICATED.
C. HOT-DIP HEAVY-GALVANIZED-STEEL SHEET: ASTM A653/A653M; STRUCTURAL STEEL (SS),
HIGH-STRENGTH LOW-ALLOY STEEL TYPE A (HSLAS TYPE A), OR HIGH-STRENGTH LOW-
ALLOY STEEL TYPE B (HSLAS TYPE B); G185 (Z550) COATING DESIGNATION; AND NOT LESS
THAN 0.036 INCH (0.9 MM) THICK.
1. USE FOR WOOD-PRESERVATIVE-TREATED LUMBER AND WHERE INDICATED.
D. STAINLESS STEEL SHEET: ASTM A240/A240M OR ASTM A666, TYPE 316.
1. USE FOR EXTERIOR LOCATIONS AND WHERE INDICATED.
E. TRUSS TIE-DOWNS: BENT STRAP TIE FOR FASTENING ROOF TRUSSES TO WALL STUDS
BELOW, 1-1/2 INCHES (38 MM) WIDE BY 0.050 INCH (1.3 MM) THICK. TIE FASTENS TO ONE
SIDE OF TRUSS, TOP PLATES, AND SIDE OF STUD BELOW.
F. TRUSS TIE-DOWNS (HURRICANE OR SEISMIC TIES): BENT STRAP TIE FOR FASTENING
ROOF TRUSSES TO WALL STUDS BELOW, 2-1/4 INCHES (57 MM) WIDE BY 0.062 INCH (1.6
MM) THICK. TIE FITS OVER TOP OF TRUSS AND FASTENS TO BOTH SIDES OF TRUSS, TOP
PLATES, AND ONE SIDE OF STUD BELOW.
G. TRUSS TIE-DOWNS (HURRICANE OR SEISMIC TIES): BENT STRAP TIE FOR FASTENING
ROOF TRUSSES TO WALL STUDS BELOW, 2-1/2 INCHES (63 MM) WIDE BY 0.062 INCH (1.6
MM) THICK. TIE FITS OVER TOP OF TRUSS AND FASTENS TO BOTH SIDES OF TRUSS,
INSIDE FACE OF TOP PLATES, AND BOTH SIDES OF STUD BELOW.
H. ROOF TRUSS CLIPS: ANGLE CLIPS FOR BRACING BOTTOM CHORD OF ROOF TRUSSES AT
NON-LOAD-BEARING WALLS, 1-1/4 INCHES (32 MM) WIDE BY 0.050 INCH (1.3 MM) THICK.
CLIP IS FASTENED TO TRUSS THROUGH SLOTTED HOLES TO ALLOW FOR TRUSS
DEFLECTION.
I. ROOF TRUSS BRACING/SPACERS: U-SHAPED CHANNELS, 1-1/2 INCHES (38 MM) WIDE BY 1
INCH (25 MM) DEEP BY 0.040 INCH (1.0 MM) THICK, MADE TO FIT BETWEEN TWO ADJACENT
TRUSSES AND ACCURATELY SPACE THEM APART, AND WITH TABS HAVING METAL TEETH
FOR FASTENING TO TRUSSES.
J. DRAG STRUT CONNECTORS: ANGLE CLIP WITH ONE LEG EXTENDED FOR FASTENING TO
THE SIDE OF GIRDER TRUSS.
1. ANGLE CLIP IS 3 BY 3 BY 0.179 BY 8 INCHES (76 BY 76 BY 4.55 BY 203 MM) WITH
EXTENDED LEG 8 INCHES (203 MM) LONG. CONNECTOR HAS GALVANIZED FINISH.
2. ANGLE CLIP IS 3 BY 3 BY 0.239 BY 10-1/2 INCHES (76 BY 76 BY 6.07 BY 267 MM) WITH
EXTENDED LEG 10-1/2 INCHES (267 MM) LONG. CONNECTOR HAS PAINTED FINISH.
2.7 MISCELLANEOUS MATERIALS
A. GALVANIZING REPAIR PAINT: SSPC-PAINT 20, WITH DRY FILM CONTAINING A MINIMUM OF
92 PERCENT ZINC DUST BY WEIGHT.
2.8 FABRICATION
A. CUT TRUSS MEMBERS TO ACCURATE LENGTHS, ANGLES, AND SIZES TO PRODUCE
CLOSE-FITTING JOINTS.
B. FABRICATE METAL CONNECTOR PLATES TO SIZES, CONFIGURATIONS, THICKNESSES,
AND ANCHORAGE DETAILS REQUIRED TO WITHSTAND DESIGN LOADS FOR TYPES OF
JOINT DESIGNS INDICATED.
C. ASSEMBLE TRUSS MEMBERS IN DESIGN CONFIGURATION INDICATED; USE JIGS OR
OTHER MEANS TO ENSURE UNIFORMITY AND ACCURACY OF ASSEMBLY, WITH JOINTS
CLOSELY FITTED TO COMPLY WITH TOLERANCES IN TPI 1. POSITION MEMBERS TO
PRODUCE DESIGN CAMBER INDICATED.
1. FABRICATE WOOD TRUSSES WITHIN MANUFACTURING TOLERANCES IN TPI 1.
D. CONNECT TRUSS MEMBERS BY METAL CONNECTOR PLATES LOCATED AND SECURELY
EMBEDDED SIMULTANEOUSLY IN BOTH SIDES OF WOOD MEMBERS BY AIR OR HYDRAULIC
PRESS.
2.9 SOURCE QUALITY CONTROL
A. SPECIAL INSPECTIONS: OWNER WILL ENGAGE A QUALIFIED SPECIAL INSPECTOR TO
PERFORM SPECIAL INSPECTIONS.
1. PROVIDE SPECIAL INSPECTOR WITH ACCESS TO FABRICATOR'S DOCUMENTATION OF
DETAILED FABRICATION AND QUALITY-CONTROL PROCEDURES THAT PROVIDE A
BASIS FOR INSPECTION CONTROL OF THE WORKMANSHIP AND THE FABRICATOR'S
ABILITY TO CONFORM TO APPROVED CONSTRUCTION DOCUMENTS AND
REFERENCED STANDARDS.
2. PROVIDE SPECIAL INSPECTOR WITH ACCESS TO PLACES WHERE WOOD TRUSSES
ARE BEING FABRICATED TO PERFORM INSPECTIONS.
B. CORRECT DEFICIENCIES IN WORK THAT SPECIAL INSPECTIONS INDICATE DO NOT
COMPLY WITH THE CONTRACT DOCUMENTS.
PART 3 - EXECUTION
3.1 INSTALLATION
A. INSTALL WOOD TRUSSES ONLY AFTER SUPPORTING CONSTRUCTION IS IN PLACE AND IS
BRACED AND SECURED.
B. IF TRUSSES ARE DELIVERED TO PROJECT SITE IN MORE THAN ONE PIECE, ASSEMBLE
TRUSSES BEFORE INSTALLING.
C. HOIST TRUSSES IN PLACE BY LIFTING EQUIPMENT SUITED TO SIZES AND TYPES OF
TRUSSES REQUIRED, EXERCISING CARE NOT TO DAMAGE TRUSS MEMBERS OR JOINTS
BY OUT-OF-PLANE BENDING OR OTHER CAUSES.
D. INSTALL AND BRACE TRUSSES ACCORDING TO TPI RECOMMENDATIONS AND AS
INDICATED.
E. INSTALL TRUSSES PLUMB, SQUARE, AND TRUE TO LINE AND SECURELY FASTEN TO
SUPPORTING CONSTRUCTION.
F. SPACE TRUSSES AS INDICATED; ADJUST AND ALIGN TRUSSES IN LOCATION BEFORE
PERMANENTLY FASTENING.
G. ANCHOR TRUSSES SECURELY AT BEARING POINTS; USE METAL TRUSS TIE-DOWNS OR
FLOOR TRUSS HANGERS AS APPLICABLE. INSTALL FASTENERS THROUGH EACH
FASTENER HOLE IN METAL FRAMING ANCHORS ACCORDING TO MANUFACTURER'S
FASTENING SCHEDULES AND WRITTEN INSTRUCTIONS.
H. SECURELY CONNECT EACH TRUSS PLY REQUIRED FOR FORMING BUILT-UP GIRDER
TRUSSES.
1. ANCHOR TRUSSES TO GIRDER TRUSSES AS INDICATED.
I. INSTALL AND FASTEN PERMANENT BRACING DURING TRUSS ERECTION AND BEFORE
CONSTRUCTION LOADS ARE APPLIED. ANCHOR ENDS OF PERMANENT BRACING WHERE
TERMINATING AT WALLS OR BEAMS.
1. INSTALL AND FASTEN STRONGBACK BRACING VERTICALLY AGAINST VERTICAL WEB
OF PARALLEL-CHORD FLOOR TRUSSES AT CENTERS INDICATED.
J. INSTALL WOOD TRUSSES WITHIN INSTALLATION TOLERANCES IN TPI 1.
K. DO NOT ALTER TRUSSES IN FIELD. DO NOT CUT, DRILL, NOTCH, OR REMOVE TRUSS
MEMBERS.
L. REPLACE WOOD TRUSSES THAT ARE DAMAGED OR DO NOT COMPLY WITH
REQUIREMENTS.
1. DAMAGED TRUSSES MAY BE REPAIRED ACCORDING TO TRUSS REPAIR DETAILS
SIGNED AND SEALED BY THE QUALIFIED PROFESSIONAL ENGINEER RESPONSIBLE
FOR TRUSS DESIGN, WHEN APPROVED BY ARCHITECT.
3.2 REPAIRS AND PROTECTION
A. PROTECT WOOD THAT HAS BEEN TREATED WITH INORGANIC BORON (SBX) FROM
WEATHER. IF, DESPITE PROTECTION, INORGANIC BORON-TREATED WOOD BECOMES
WET, APPLY EPA-REGISTERED BORATE TREATMENT. APPLY BORATE SOLUTION BY
SPRAYING TO COMPLY WITH EPA-REGISTERED LABEL.
B. PROTECT WOOD TRUSSES FROM WEATHER. IF, DESPITE PROTECTION, WOOD TRUSSES
BECOME WET, APPLY EPA-REGISTERED BORATE TREATMENT. APPLY BORATE SOLUTION
BY SPRAYING TO COMPLY WITH EPA-REGISTERED LABEL.
C. REPAIR DAMAGED GALVANIZED COATINGS ON EXPOSED SURFACES ACCORDING TO
ASTM A780/A780M AND MANUFACTURER'S WRITTEN INSTRUCTIONS.
3.3 FIELD QUALITY CONTROL
A. SPECIAL INSPECTIONS: OWNER WILL ENGAGE A QUALIFIED SPECIAL INSPECTOR TO
PERFORM SPECIAL INSPECTIONS TO VERIFY THAT TEMPORARY INSTALLATION
RESTRAINT/BRACING AND THE PERMANENT INDIVIDUAL TRUSS MEMBER
RESTRAINT/BRACING ARE INSTALLED IN ACCORDANCE WITH THE APPROVED TRUSS
SUBMITTAL PACKAGE.
END OF SECTION 061753 Willow Haven Senior Homes08/09/21