|
E. Reapply soil treatment solution to areas disturbed by subsequent excavation, grading, landscaping, or other construction activities
<br />following application.
<br />END OF SECTION 02361
<br />SECTION 03300 - CAST -IN -PLACE CONCRETE
<br />PART 1 - GENERAL
<br />1.1 SUMMARY
<br />A. This Section includes cast -in -place concrete, including reinforcement, concrete materials, mix design, placement procedures, and
<br />finishes.
<br />1.2 SUBMITTALS
<br />A. Product Data: For each manufactured material and product indicated.
<br />B. Design Mixes: For each concrete mix indicated.
<br />C. Shop Drawings: Include details of steel reinforcement placement including material, grade, bar schedules, stirrup spacing, bent
<br />bar diagrams, arrangement, and supports.
<br />D. Material test reports.
<br />1.3 QUALITY ASSURANCE
<br />A. Manufacturer Qualifications: A firm experienced in manufacturing ready -mixed concrete products complying with ASTM C 94
<br />requirements for production facilities and equipment.
<br />B. Comply with ACI 301, "Specification for Structural Concrete," including the following, unless modified by the requirements of
<br />the Contract Documents.
<br />1. General requirements, including submittals, quality assurance, acceptance of structure, and protection of in -place concrete.
<br />2. Formwork and form accessories.
<br />3. Steel reinforcement and supports.
<br />4. Concrete mixtures.
<br />5. Handling, placing, and constructing concrete.
<br />1711"Rlv�0101118140 N
<br />2.1 MATERIALS
<br />A. Formwork: Furnish formwork and form accessories according to ACI 301.
<br />B. Steel Reinforcement:
<br />1. Reinforcing Bars: ASTM A 615/A 615M, Grade 60, deformed.
<br />2. Welded Wire Fabric: ASTM A 185, fabricated from as -drawn steel wire into flat sheets.
<br />C. Concrete Materials:
<br />1. Portland Cement: ASTM C 150, Type I.
<br />2. Normal -Weight Aggregate: ASTM C 33, uniformly graded, not exceeding 1/4-inch nominal size.
<br />3. Lightweight Aggregate: ASTM C 330.
<br />4. Water: Complying with ASTM C 94.
<br />D. Admixtures:
<br />1. Air -Entraining Admixture: ASTM C 260.
<br />2. Water -Reducing Admixture: ASTM C 494, Types A, D, F or G. If "F", see 2.2A.
<br />E. Vapor Retarder: Polyethylene sheet, ASTM D 4397, not less than 10 mils thick.
<br />F. Preformed Joint -Filler: ASTM D 1751, asphalt -saturated cellulosic fiber.
<br />G. Curing Materials:
<br />1. Evaporation Retarder: Waterborne, monomolecular film forming, manufactured for application to fresh concrete.
<br />2. Moisture -Retaining Cover: ASTM C 171, polyethylene film.
<br />3. Water: Potable.
<br />4. Clear, Solvent -Borne, Membrane -Forming Curing Compound: ASTM C 309, Type 1, Class B.
<br />2.2 CONCRETE MIXES
<br />A. Comply with ACI 301 requirements for concrete mixtures.
<br />B. Prepare design mixes, proportioned according to ACI 301, for normal -weight concrete determined by either laboratory trial mix or
<br />field test data bases, as follows:
<br />1. Compressive Strength (28 Days).
<br />2. Slump: 4 inches.
<br />PART 3 - EXECUTION
<br />3.1 INSTALLATION, GENERAL
<br />A. Formwork: Design, construct, erect, shore, brace, and maintain formwork according to ACI 301.
<br />B. Vapor Retarder: Install, protect, and repair vapor -retarder sheets according to ASTM E 1643; place sheets in position with longest
<br />dimension parallel with direction of pour.
<br />1. Lap joints 6 inches and seal with manufacturer's recommended tape.
<br />C. Steel Reinforcement: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforce-
<br />ment.
<br />1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before placing concrete.
<br />D. Joints: Construct joints true to line with faces perpendicular to surface plane of concrete.
<br />1. Construction Joints: Locate and install so as not to impair strength or appearance of concrete, at locations indicated or as
<br />approved by Architect.
<br />2. Isolation Joints: Install preformed joint filler at junctions with slabs -on -grade and vertical surfaces, such as column ped-
<br />estals, foundation walls, grade beams, and other locations, to full width and depth of joint, terminating flush with finished
<br />concrete surface, unless otherwise indicated.
<br />3. Contraction Joints in Slabs -on -Grade: Form weakened -plane contraction joints, sectioning concrete into areas as indicated.
<br />Construct contraction joints for a depth equal to at least one-fourth of the concrete thickness, as follows:
<br />a. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond -rimmed
<br />blades. Cut 1/8-inch- wide joints into concrete when cutting action will not tear, abrade, or otherwise damage surface
<br />and before concrete develops random contraction cracks.
<br />E. Tolerances: Comply with ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."
<br />3.2 CONCRETE PLACEMENT
<br />A. Comply with recommendations in ACI 304R for measuring, mixing, transporting, and placing concrete.
<br />B. Consolidate concrete with mechanical vibrating equipment.
<br />3.3 FINISHING FORMED SURFACES
<br />A. Rough -Formed Finish: As -cast concrete texture imparted by form -facing material with tie holes and defective areas repaired and
<br />patched, and fins and other projections exceeding 1/4 inch in height rubbed down or chipped off.
<br />1. Apply to concrete surfaces not exposed to public view.
<br />B. Smooth -Formed Finish: As -cast concrete texture imparted by form -facing material, arranged in an orderly and symmetrical
<br />manner with a minimum of seams. Repair and patch tie holes and defective areas. Completely remove fins and other projec-
<br />tions.
<br />1. Apply to concrete surfaces exposed to public view or to be covered with a coating or covering material applied directly to
<br />concrete, such as waterproofing, dampproofing, veneer plaster, or painting.
<br />2. Apply grout -cleaned finish, defined in ACI 301, to smooth -formed finished concrete.
<br />C. Related Unformed Surfaces: At tops of walls, horizontal offsets, and similar unformed surfaces adjacent to formed surfaces, strike
<br />off smooth and finish with a texture matching adjacent formed surfaces. Continue final surface treatment of formed surfaces uni-
<br />formly across adjacent unformed surfaces, unless otherwise indicated.
<br />3.4 FINISHING UNFORMED SURFACES
<br />A. General: Comply with ACI 302.1R for screeding, restraightening, and finishing operations for concrete surfaces. Do not wet
<br />concrete surfaces.
<br />B. Screed surfaces with a straightedge and strike off. Begin initial floating using bull floats or darbies to form a uniform and open -
<br />textured surface plane before excess moisture or bleedwater appears on the surface.
<br />C. Scratch Finish: Apply scratch finish to surfaces to receive concrete floor topping or mortar setting beds for ceramic or quarry tile,
<br />Portland cement terrazzo, and other bonded cementitious floor finish, unless otherwise indicated.
<br />D. Float Finish: Apply float finish to surfaces indicated, to surfaces to receive trowel finish, and to floor and slab surfaces to be cov-
<br />ered with fluid -applied or sheet waterproofing, built-up or membrane roofing, or sand -bed terrazzo.
<br />E. Trowel Finish: Apply a hard trowel finish to surfaces indicated and to floor and slab surfaces exposed to view or to be covered with
<br />resilient flooring, carpet, ceramic or quarry tile set over a cleavage membrane, paint, or another thin film -finish coating system.
<br />F. Nonslip Broom Finish: Apply a nonslip broom finish to surfaces indicated and to exterior concrete platforms, steps, and ramps.
<br />Immediately after float finishing, slightly roughen trafficked surface by brooming with fiber -bristle broom perpendicular to main
<br />traffic route.
<br />3.5 CONCRETE PROTECTION AND CURING
<br />A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1
<br />for cold -weather protection, and follow recommendations in ACI 305R for hot -weather protection during curing.
<br />B. Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy conditions occur before and during
<br />finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying
<br />concrete, but before float finishing.
<br />C. Begin curing after finishing concrete, but not before free water has disappeared from concrete surface.
<br />D. Cure formed and unformed concrete for at least seven days as follows:
<br />1. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written
<br />instructions. Recoat areas subjected to heavy rainfall within three hours after initial application. Maintain continuity of
<br />coating and repair damage during curing period.
<br />3.6 FIELD QUALITY CONTROL
<br />A. Testing Agency: Owner will engage a qualified independent testing and inspecting agency to sample materials, perform tests, and
<br />submit test reports during concrete placement. Tests will be performed according to ACI 301.
<br />1. Testing Frequency: One composite sample for each day's pour of each concrete mix exceeding 5 cu. yd., but less than 25
<br />cu. yd., plus one set for each additional 50 cu. yd. or fraction thereof.
<br />END OF SECTION 03300
<br />SECTION 04810 - UNIT MASONRY ASSEMBLIES
<br />1.1 SUMMARY
<br />A. This Section includes unit masonry assemblies consisting of the following:
<br />1. Integral color split -face concrete masonry units with integral water repellant.
<br />1.2 SUBMITTALS
<br />A. Product Data: For each masonry unit, accessory, and other manufactured product indicated.
<br />B. Samples: Showing the full range of colors and textures available for exposed masonry units and colored mortars.
<br />C. Material Test Reports: For each type of masonry unit, mortar, and grout required.
<br />1.3 PROJECT CONDITIONS
<br />A. Cold -Weather Requirements: Do not build on frozen substrates. Remove and replace unit masonry damaged by frost or by freez-
<br />ing conditions. Comply with cold -weather construction requirements in ACI 530.1.
<br />B. Hot -Weather Requirements: When ambient temperature exceeds 100 deg F, or 90 deg F with a wind velocity greater than 8 mph,
<br />do not spread mortar beds more than 48 inches ahead of masonry. Set masonry units within one minute of spreading mortar.
<br />PART 2 - PRODUCTS
<br />2.1 COLORS AND TEXTURES
<br />A. Exposed Masonry Units: As selected from manufacturer's full range.
<br />2.2 MASONRY UNITS
<br />A. Concrete Masonry Units: ASTM C 90.
<br />1. Unit Compressive Strength: 1900-psi minimum, average net -area compressive strength.
<br />2. Weight Classification: Normal weight.
<br />3. Type: II, nonmoisture-controlled units.
<br />f vNormal-weight aggregate, s lit -face finish
<br />4. Exposed Faces o Decorative Units: p
<br />5. Special Shapes: Provide for lintels, corners, jambs, sash, control joints, headers, bonding, and other special conditions.
<br />6. Water Repellant Admixture: In addition to other constituants previously exstablished as suiatble for use in concrete masonry
<br />conforming to ASTM standards, all units shall be manufactured with an integtral water repellant admixture. The integral
<br />water repellant admixture shall be certified, by the admixture manufacturer, with the wall showing no visible water when
<br />tested in accordance with ASTM E514-90.
<br />7. Manufacturers: Subject to compliance with requirements, provide concrete masonry units from the following:
<br />a. Demaco.
<br />2.3 MORTAR AND GROUT MATERIALS
<br />A. Portland Cement: ASTM C 150, Type I, except Type III may be used for cold -weather construction.
<br />B. Hydrated Lime: ASTM C 207, Type S.
<br />C. Mortar Cement: ASTM C 1329.
<br />1. Products:
<br />a. Blue Circle Cement; Magnolia Superbond Mortar Cement.
<br />b. Lafarge Corporation; Lafarge Mortar Cement.
<br />D. Masonry Cement: ASTM C 91.
<br />E. Pigmented Mortar: Colored cement or cement -lime formulation as required to produce the color indicated.
<br />1. Colored Masonry Cement:
<br />a. Products:
<br />1) Blue Circle Cement; Magnolia Masonry Cement.
<br />2) Essroc Materials, Inc.; Brixment-in-Color.
<br />3) Holnam, Inc.; Rainbow Mortamix Custom Color Masonry Cement.
<br />F. Aggregate for Mortar: ASTM C 144; except for joints less than 1/4 inch thick, use aggregate graded with 100 percent passing the
<br />No. 16 sieve.
<br />G. Aggregate for Grout: ASTM C 404.
<br />H. Water: Potable.
<br />2.4 REINFORCING
<br />A. Uncoated Steel Reinforcing Bars: ASTM A 615/A 615M; ASTM A 616/A 616M, including Supplement 1; or ASTM A 617/
<br />A 617M, Grade 60.
<br />B. Masonry Joint Reinforcement: ASTM A 951; mill galvanized, carbon -steel wire for interior walls and hot -dip galvanized, carbon -
<br />steel wire for exterior walls.
<br />1. Single-Wythe Masonry: Use either ladder or truss type with single pair of side rods and cross rods spaced not more than 16
<br />inches o.c.
<br />C. Adjustable Anchors for Connecting to Steel Frame: Two-piece assemblies that allow vertical or horizontal adjustment but resist
<br />tension and compression forces perpendicular to wall.
<br />1. Anchor Section: Crimped 1/4-inch diameter, galvanized steel wire anchor section for welding to steel.
<br />2. Tie Section: Triangular -shaped wire tie, sized to extend within 1 inch of masonry face, made from 0.1875-inch- diameter,
<br />galvanized steel wire.
<br />D. Anchors for Connecting to Concrete: Provide two-piece assemblies that allow vertical or horizontal adjustment but resist tension
<br />and compression forces perpendicular to wall.
<br />1. Anchor Section: Dovetail anchor section formed from 0.0528-inch- thick, galvanized steel sheet.
<br />2. Tie Section: Triangular -shaped wire tie, sized to extend within 1 inch of masonry face, made from 0.1875-inch- diameter,
<br />galvanized steel wire.
<br />2.5 MISCELLANEOUS MASONRY ACCESSORIES
<br />A. Compressible Filler: Premolded filler strips complying with ASTM D 1056, Grade 2A1; compressible up to 35 percent; formu-
<br />lated from neoprene.
<br />B. Preformed Control -Joint Gaskets: Designed to fit standard sash block and to maintain lateral stability in masonry wall. Made from
<br />styrene-butadiene-rubber compound complying with ASTM D 2000, Designation M2AA-805.
<br />C. Bond -Breaker Strips: Asphalt -saturated, organic roofing felt complying with ASTM D 226, Type I (No. 15 asphalt felt).
<br />2.6 MASONRY CLEANERS
<br />A. Job -Mixed Detergent Solution: Solution of 1/2-cup dry measure tetrasodium polyphosphate and 1/2-cup dry measure laundry
<br />detergent dissolved in 1 gal. of water.
<br />PART 3 - EXECUTION
<br />3.1 INSTALLATION, GENERAL
<br />A. Cut masonry units with motor -driven saws. Allow units cut with water-cooled saws to dry before placing, unless wetting of units
<br />is specified. Install cut units with cut surfaces and, where possible, cut edges concealed.
<br />B. Select and arrange units for exposed unit masonry to produce a uniform blend of colors and textures.
<br />C. Comply with tolerances in ACI 530.1/ASCE 6/TMS 602 and the following:
<br />1. For conspicuous vertical and horizontal lines, such as external corners, door jambs, reveals, and expansion and control
<br />joints, do not vary from plumb by more than 1/4 inch in 20 feet, nor 1/2 inch maximum.
<br />3.2 LAYING MASONRY WALLS
<br />A. Lay out walls in advance for accurate spacing of surface bond patterns with uniform joint thicknesses and for accurate location
<br />of openings, movement -type joints, returns, and offsets. Avoid using less -than -half-size units, particularly at corners, jambs, and,
<br />where possible, at other locations.
<br />B. Bond Pattern for Exposed Masonry: Lay exposed masonry in bond pattern indicated; do not use units with less than nominal 4-
<br />inch horizontal face dimensions at corners or jambs.
<br />C. Fill cores in hollow concrete masonry units with grout 24 inches under bearing plates, beams, lintels, posts, and similar items,
<br />unless otherwise indicated.
<br />3.3 MORTAR BEDDING AND JOINTING
<br />A. Lay hollow masonry units as follows:
<br />1. With full mortar coverage on horizontal and vertical face shells.
<br />2. Bed webs in mortar in starting course on footings and in all courses of piers, columns, and pilasters, and where adjacent to
<br />cells or cavities to be filled with grout.
<br />3. For starting course on footings where cells are not grouted, spread out full mortar bed, including areas under cells.
<br />B. Tool exposed joints slightly concave when thumbprint hard, using a jointer larger than the joint thickness, unless otherwise indi-
<br />cated.
<br />3.4 MASONRY JOINT REINFORCEMENT
<br />A. Provide continuous masonry joint reinforcement as indicated. Install with a minimum cover of 5/8 inch on exterior side of walls,
<br />1/2 inch elsewhere. Lap reinforcement a minimum of 6 inches.
<br />B. Provide continuity at corners and wall intersections by using prefabricated "L" and "T" sections.
<br />3.5 ANCHORING MASONRY
<br />A. Anchor masonry to structural members where masonry abuts or faces structural members to comply with the following:
<br />1. Provide an open space not less than 1 inch in width between masonry and structural member, unless otherwise indicated.
<br />2. Anchor masonry to structural members with flexible anchors embedded in masonry joints and attached to structure.
<br />3.6 LINTELS
<br />A. Provide masonry lintels where shown. Provide precast lintels made from concrete matching concrete masonry units in color, tex-
<br />ture, and compressive strength and with reinforcing bars indicated or required to support loads indicated.
<br />3.7 FIELD QUALITY CONTROL
<br />A. Owner will engage a qualified independent testing agency to perform field quality -control testing indicated below.
<br />1. Testing Frequency: Tests and Evaluations listed in these subparagraphs will be performed during construction for each 5000
<br />sq. ft. of wall area or portion thereof.
<br />2. Mortar: Properties will be tested per ASTM C 780.
<br />3. Grout: Sampled and tested for compressive strength per ASTM C 1019.
<br />3.8 PARGING
<br />A. Parge predampened masonry walls, where indicated, with Type S or Type N mortar applied in 2 uniform coats to a total thickness
<br />of 3/4 inch with a steel -trowel finish. Form a wash at top of parging and a cove at bottom. Damp -cure parging for at least 24
<br />hours.
<br />3.9 CLEANING
<br />A. Clean unit masonry by dry brushing to remove mortar fins and smears before tooling joints, as work progresses.
<br />END OF SECTION 04810
<br />SECTION 05120 - STRUCTURAL STEEL - REFER TO STRUCTURAL PLANS
<br />SECTION 05210 - STEEL JOISTS - REFER TO STRUCTURAL PLANS
<br />SECTION 05310 - STEEL DECK - REFER TO STRUCTURAL PLANS
<br />SECTION 05400 - COLD -FORMED METAL FRAMING - REFER TO STRUCTURAL PLANS
<br />SECTION 05500 - METAL FABRICATIONS
<br />PART 1- GENERAL
<br />1.1 SUMMARY
<br />A. This Section includes the following:
<br />1. Steel ladders.
<br />2. Miscellaneous steel framing and supports.
<br />3. Pipe bollards.
<br />1.2 SUBMITTALS
<br />A. Shop Drawings: Include plans, elevations, sections, details of installation, and attachments to other Work.
<br />B. Templates: For anchor bolts.
<br />PART 2 - PRODUCTS
<br />2.1 METALS
<br />A. Metal Surfaces, General: Provide materials with smooth, flat surfaces without blemishes.
<br />B. Ferrous Metals:
<br />1. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M.
<br />2. Stainless -Steel Bars and Shapes: ASTM A 276, Type 304.
<br />3. Rolled -Steel Floor Plate: ASTM A 786/A 786M, rolled from plate complying with ASTM A 36/A 36M or ASTM A 283/
<br />A 283M, Grade C or D.
<br />4. Rolled -Stainless -Steel Floor Plate: ASTM A 793.
<br />5. Steel Tubing: Cold -formed steel tubing complying with ASTM A 500.
<br />6. Steel Pipe: ASTM A 53, standard weight (Schedule 40), unless another weight is indicated or required by structural loads.
<br />7. Slotted Channel Framing: Cold -formed metal channels 1-5/8 by 1-5/8 inches with flange edges returned toward web
<br />and with 9/16-inch- wide slotted holes in webs at 2 inches o.c. Channels made from galvanized steel complying with
<br />ASTM A 653/A 653M, structural quality, Grade 33, with G90 coating; 0.079-inch nominal thickness.
<br />8. Extrusions: ASTM B 221, alloy 6063-T6.
<br />2.2 PAINT
<br />A. Shop Primer for Ferrous Metal: Fast -curing, lead- and chromate -free, universal modified -alkyd primer complying with perfor-
<br />mance requirements in FS TT-P-664 and compatible with finish paint systems indicated.
<br />2.3 FABRICATION
<br />A. Connections, General: Use connections that maintain structural value of joined pieces.
<br />1. Shear and punch metals cleanly and accurately. Remove burrs.
<br />2. Weld corners and seams continuously. Use materials and methods that minimize distortion and develop strength and cor-
<br />rosion resistance of base metals. Obtain fusion without undercut or overlap. Remove welding flux immediately. Finish
<br />exposed welds smooth and blended.
<br />3. Fabricate joints that will be exposed to weather in a manner to exclude water, or provide weep holes.
<br />4. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners where possible. Locate joints
<br />where least conspicuous.
<br />B. Steel Ladders: Comply with ANSI A14.3, unless otherwise indicated.
<br />1. Siderails: Continuous, 1/2-by-2-1/2-inch steel flat bars, with eased edges, spaced 18 inches apart.
<br />2. Bar Rungs: 3/4-inch- diameter steel bars, spaced 12 inches o.c.
<br />a. Fit rungs in centerline of side rails; plug -weld and grind smooth on outer rail faces.
<br />4. Support each ladder at top and bottom and not more than 60 inches o.c. with welded or bolted steel brackets. Size brackets
<br />to support design loads specified in ANSI A14.3.
<br />5. Fabricate ladder safety cages to comply with ANSI A14.3. Assemble by welding or riveting.
<br />6. Galvanize exterior ladders and safety cages.
<br />C. Miscellaneous Framing and Supports: Fabricate steel framing and supports that are not a part of structural -steel framework as
<br />necessary to complete the Work from structural steel of welded construction. Cut, drill, and tap units to receive hardware, hangers,
<br />and similar items.
<br />1. Where indicated to be cast into concrete or built into masonry, equip with integrally welded anchors at 24 inches o.c.
<br />2. Fabricate steel girders for wood frame construction from continuous steel shapes. Where wood nailers are attached to gird-
<br />ers with bolts or lag screws, drill holes at 24 inches o.c.
<br />3. Fabricate steel pipe columns for supporting wood frame construction with steel baseplates and top plates welded to pipe
<br />with fillet welds the same size as pipe wall thickness.
<br />D. Pipe Bollards: Fabricate from Schedule 40 steel pipe.
<br />PART 3 - EXECUTION
<br />3.1 INSTALLATION
<br />A. General: Provide anchorage devices and fasteners for securing metal fabrications to in -place construction. Perform cutting, drill-
<br />ing, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, with edges and surfaces
<br />level, plumb, and true.
<br />1. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construc-
<br />tion.
<br />2. Fit exposed connections accurately together. Weld connections, unless otherwise indicated. Do not weld, cut, or abrade
<br />galvanized surfaces.
<br />B. Set bearing and leveling plates on cleaned surfaces using wedges, shims, or leveling nuts. After bearing members have been posi-
<br />tioned and plumbed, tighten anchor bolts and pack with nonshrink, nonmetallic grout.
<br />END OF SECTION 05500
<br />SECTION 06100 - ROUGH CARPENTRY
<br />PART 1 - GENERAL
<br />1.1 SUMMARY
<br />A. This Section includes the following:
<br />1. Wood blocking.
<br />2. Wood nailers.
<br />3. Wood sheathing.
<br />4. Plywood backing panels.
<br />PART 2 - PRODUCTS
<br />2.1 WOOD PRODUCTS, GENERAL
<br />A. Lumber: DOC PS 20 and applicable rules of lumber grading agencies certified by the American Lumber Standards Committee
<br />Board of Review.
<br />1. Factory mark each piece of lumber with grade stamp of grading agency.
<br />2. For exposed lumber indicated to receive stained or natural finish, mark grade stamp on end or back of each piece.
<br />3. Provide dressed lumber, S4S, unless otherwise indicated.
<br />4. Provide dry lumber with 15 percent maximum moisture content at time of dressing for 2-inch nominal thickness or less,
<br />unless otherwise indicated.
<br />B. Wood Structural Panels:
<br />1. Plywood: DOC PS I.
<br />2. Oriented Strand Board: DOC PS 2.
<br />2.2 WOOD -PRESERVATIVE -TREATED MATERIALS
<br />A. Preservative Treatment by Pressure Process: AWPA C2 (lumber) and AWPA C9 (plywood), except that lumber that is not in con-
<br />tact with the ground and is continuously protected from liquid water may be treated according to AWPA C31 with inorganic boron
<br />(SBX).
<br />B. Application: Treat items indicated on Drawings, and the following:
<br />1. Wood cants, nailers, curbs, equipment support bases, blocking, stripping, and similar members in connection with roofing,
<br />flashing, vapor barriers, and waterproofing.
<br />2. Wood sills, sleepers, blocking, furring, stripping, and similar concealed members in contact with masonry or concrete.
<br />3. Wood framing members less than 18 inches above grade.
<br />4. Wood floor plates that are installed over concrete slabs directly in contact with earth.
<br />2.3 FIRE -RETARDANT -TREATED MATERIALS
<br />A. General: Where fire -retardant -treated materials are indicated, provide materials that comply with performance requirements in
<br />AWPA C20 (lumber) and AWPA C27 (plywood). Identify fire -retardant -treated wood with appropriate classification marking of
<br />UL, U.S. Testing, Timber Products Inspection, or another testing and inspecting agency acceptable to authorities having jurisdic-
<br />tion.
<br />1. Use treatment for which chemical manufacturer publishes physical properties of treated wood after exposure to elevated tem-
<br />peratures, when tested by a qualified independent testing agency according to ASTM D 5664, for lumber and ASTM D 5516,
<br />for plywood.
<br />2. Use treatment that does not promote corrosion of metal fasteners.
<br />3. Use Exterior type for exterior locations and where indicated.
<br />4. Use Interior Type A High Temperature (HT), unless otherwise indicated.
<br />2.4 DIMENSION LUMBER
<br />A. General: Of grades indicated according to the American Lumber Standards Committee National Grading Rule provisions of the
<br />grading agency indicated.
<br />B. Non -Load -Bearing Interior Partitions: Construction, Stud, or No. 2 grade and any of the following species:
<br />1. Mixed southern pine; SPIB.
<br />2. Eastern softwoods; NELMA.
<br />C. Exposed Framing: Hand select material for uniformity of appearance and freedom from characteristics that would impair finish
<br />appearance.
<br />1. Species and Grade: As indicated above for load -bearing construction of same type.
<br />2. Species and Grade: Hem -fir or Hem -fir (north), Select Structural grade; NLGA, WCLIB, or WWPA.
<br />3. Species and Grade: Southern pine, Select Structural No. 1 grade; SPIB.
<br />4. Species and Grade: Spruce -pine -fir or Spruce -pine -fir (south), Select Structural No. 1 grade; NELMA, NLGA, WCLIB, or
<br />WWPA.
<br />2.5 SHEATHING
<br />A. Plywood Wall Sheathing: Exterior, Structural I sheathing.
<br />B. Paper -Surfaced Gypsum Wall Sheathing: ASTM C 79/C 79M, with water-resistant material incorporated into core and with water-
<br />repellent paper bonded to core's face, back, and long edges.
<br />1. Manufacturers:
<br />a. American Gypsum Co.
<br />b. G-P Gypsum Corporation.
<br />C. National Gypsum Company.
<br />d. United States Gypsum Co.
<br />2. Type and Thickness: Regular, 1/2 inch and Type X, 5/8 inch thick as indicated on drawings.
<br />C. Glass -Mat Gypsum Wall Sheathing: ASTM C 1177/C 1177M.
<br />1. Product: Subject to compliance with requirements, provide "Dens -Glass Gold" by G-P Gypsum Corp.
<br />2. Type and Thickness: Regular, 1/2 inch and Type X, 5/8 inch thick as indicated on drawings.
<br />D. Extruded -Polystyrene -Foam Wall Sheathing: ASTM C 578, Type IV, in manufacturer's standard lengths and widths with tongue -
<br />and -groove or shiplap long edges as standard with manufacturer.
<br />1. Manufacturers:
<br />a. DiversiFoam Products.
<br />b. Dow Chemical Company (The).
<br />C. Owens Corning.
<br />d. Tenneco Building Products.
<br />E. Plywood Roof Sheathing: Exterior sheathing.
<br />F. Oriented -Strand -Board Roof Sheathing: Exposure 1 sheathing.
<br />2.6 PLYWOOD BACKING PANELS
<br />A. Telephone and Electrical Equipment Backing Panels: DOC PS 1, Exposure 1, C-D Plugged, fire -retardant treated, in thickness
<br />indicated or, if not indicated, not less than 1/2 inch thick.
<br />2.7 MISCELLANEOUS MATERIALS
<br />A. Fasteners:
<br />1. Where rough carpentry is exposed to weather, in ground contact, or in area of high relative humidity, provide fasteners with
<br />hot -dip zinc coating complying with ASTM A 153/A 153M.
<br />2. Power -Driven Fasteners: CABO NER-272.
<br />3. Bolts: Steel bolts complying with ASTM A 307, Grade A; with ASTM A 563 hex nuts and, where indicated, flat washers.
<br />B. Metal Framing Anchors: Made from hot -dip, zinc -coated steel sheet complying with ASTM A 653/A 653M, G60 coating designa-
<br />tion.
<br />C. Building Paper: Asphalt -saturated organic felt complying with ASTM D 226, Type I (No. 15 asphalt felt), unperforated.
<br />PART 3 - EXECUTION
<br />3.1 INSTALLATION
<br />A. Set rough carpentry to required levels and lines, with members plumb, true to line, cut, and fitted. Fit rough carpentry to other
<br />construction; scribe and cope as needed for accurate fit. Locate [furring,] nailers, blocking, and similar supports to comply with
<br />requirements for attaching other construction.
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