B08-_Attachment_2-Statement_of_Work_Division_02.pdf

VOLUME 2 OF 2

Statement of Work: HVAC Replacement in Death

Valley National Park

PMIS 348795

National Park Service

Death Valley National Park

Inyo County, California

VOLUME 2 OF 2

TABLE OF CONTENTS

DIVISION, SECTION & PARAGRAPH NUMBERING

Numbering and lettering of sections and paragraphs in this Project Manual are merely for identification.

Sections included are listed in this Table of Contents together with the number of pages in each section.

The Contractor shall check their copies of the Project Manual against this Table of Contents and confirm there are no missing pages or sections.

Number Title No. of Pages

00 01 10 Table of Contents 3

DIVISION 02 – EXISTING CONDITIONS

02 05 00 General Site Construction Requirements 2

02 41 00 Demolition & Abandonment 4

02 82 00 Asbestos Remediation 5

DIVISION 03 – CONCRETE (Section not used)

DIVISION 04 – MASONRY (Section not used)

DIVISION 05 – METALS

05 50 00 Metal Fabrications 7

05 50 16 Miscellaneous Metal for Utilities 4

DIVISION 06 – WOOD, PLASTICS, & COMPONENTS

06 10 00 Carpentry 9

DIVISION 07 – THERMAL & MOISTURE PROTECTION

07 52 00 Modified Bituminous Roofing 16

07 90 00 Joint Sealers 5

DIVISION 08 – OPENINGS

08 90 00 Louvers & Vents 7

DIVISION 09 – FINISHES

09 29 00 Gypsum Board Assemblies 7

09 90 00 Paints & Coatings 9

DIVISION 10 – SPECIALTIES (Section not used)

DIVISION 11 – EQUIPMENT (Section not used)

DIVISION 12 – FURNISHINGS (Section not used)

DIVISION 13 – SPECIAL CONSTRUCTION (Section not used)

DIVISION 14 – CONVEYING EQUIPMENT (Section not used)

DIVISION 21 – FIRE SUPPRESSION (Section not used)

DIVISION 22 – PLUMBING

22 05 29 Hangers & Supports for Plumbing Piping & Equipment 11

22 05 53 Identification for Plumbing Piping & Equipment 3

22 07 19 Plumbing Insulation 20

22 13 16 Sanitary Waste & Vent Piping 13

22 13 19 Sanitary Waste Piping Specialties 4

DIVISION 23 – HEATING, VENTILATING, & AIR CONDITIONING (HVAC)

23 01 30.52 Existing HVAC Air Distribution System Cleaning 8

23 05 00 Common Work Results for HVAC 13

23 05 13 Common Motor Requirements for HVAC Equipment 3

23 05 29 Hangers & Supports for HVAC Piping & Equipment 15

23 05 53 Identification for HVAC Piping & Equipment 6

23 05 93 Testing, Adjusting & Balancing for HVAC 12

23 07 00 HVAC Insulation 22

23 23 00 Refrigerant Piping 14

23 31 13 Metal Ducts 17

23 33 00 Air Duct Accessories 6

23 34 16 Centrifugal HVAC Fans 7

23 37 13.13 Air Diffusers 3

23 37 13.23 Registers & Grilles 2

23 74 16 Packaged, Rooftop Air-Conditioning and Heat Pump Units 14

23 81 26 Split System Air-Conditioners 5

DIVISION 25 – INTEGRATED AUTOMATION (Section not used)

DIVISION 26 – ELECTRICAL

26 00 00 Electrical General Requirements 7

26 05 00 Common Work Results for Electrical 7

26 05 19 Low Voltage Electrical Power Conductors & Cables 6

26 05 26 Grounding & Bonding for Electrical Systems 4

26 05 29 Hangers & Supports for Electrical Systems 4

26 05 33 Raceways & Boxes for Electrical Systems 7

26 05 48 Vibration & Seismic Requirements for Electrical Systems 6

26 05 53 Identification for Electrical Systems 4

26 24 16 Panelboards 12

26 27 26 Wiring Devices 5

26 28 13 Fuses 3

26 28 16 Enclosed Switches & Circuit Breakers 5

DIVISION 27 – COMMUNICATIONS (Section not used)

DIVISION 28 – ELECTRONIC SAFETY & SECURITY (Section not used)

DIVISION 31 – EARTHWORK (Section not used)

DIVISION 32 – EXTERIOR IMPROVEMENTS (Section not used)

DIVISION 33 – UTILITIES (Section not used)

DIVISION 34 – TRANSPORTATION (Section not used)

DIVISION 35 – WATERWAY & MARINE CONSTRUCTION (Section not used)

DIVISION 40 – PROCESS INTERCONNECTIONS (Section not used)

DIVISION 41 – MATERIAL PROCESSING & HANDLING EQUIPMENT (Section not used)

DIVISION 42 – PROCESS HEATING, COOLING, & DRYING EQUIPMENT (Section not used)

DIVISION 43 – PROCESS GAS AND LIQUID HANDLING, PURIFICATION, & STORAGE

EQUIPMENT (Section not used)

DIVISION 44 – POLLUTION CONTROL EQUIPMENT (Section not used)

DIVISION 45 – INDUSTRY – SPECIFIC MANUFACTURING EQUIPMENT (Section not used)

DIVISION 46 – WATER AND WASTEWATER EQUIPMENT (Section not used)

DIVISION 48 – ELECTRICAL POWER GENERATION (Section not used)

DIVISION 02

EXISTING CONDITIONS

SECTION 02 05 00

GENERAL SITE CONSTRUCTION REQUIREMENTS

PART 1 - GENERAL

1.1 DESCRIPTION

A. The work of this Section includes the general procedures and requirements for Site Work.

PART 2 - PRODUCTS - NOT USED.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Site Verification of Conditions

1. Contractor shall perform necessary potholing or locating of underground utilities and services. Perform minor, investigative excavations to verify location of various existing underground facilities at sufficient locations to assure that no conflict with the proposed work exists and sufficient clearance is available to avoid damage to existing facilities.

2. Upon discovery of conflicts or problems with existing facilities or construction documents, notify Contracting Officer within twenty-four (24) hours.

3. Existing mapping may be used to approximate locations of existing utilities. Contractor is responsible for determining actual locations of all utilities.

3.2 PREPARATION

A. Protection

1. Spillage -

a. Avoid spillage by covering and securing loads when hauling on or adjacent to public streets or highways.

b. Remove spillage and sweep, wash, or otherwise clean project, streets, and highways.

2. Dust Control: See Division 01 Section 01 57 23 “Temporary Storm Water Pollution

Prevention.”

3. Sediment & Erosion Control: See Division 01 Section 01 57 23 “Temporary Storm Water

Pollution Prevention.”

4. Existing Plants and Features: Do not damage tops, trunks, and roots of existing trees and shrubs on site which are intended to remain. Do not use heavy equipment within branch spread. Interfering branches may be removed only with permission of Contracting

Officer. Do not damage other plants and features which are to remain.

3.3 REPAIR / RESTORATION - NOT USED.

3.4 FIELD QUALITY CONTROL

A. Notify Contracting Officer forty-eight (48) hours before performing excavation or fill work.

B. If work has been interrupted by weather, scheduling, or other reason, notify Contracting

Officer twenty-four (24) hours minimum prior to intended resumption of grading or compacting.

C. NPS reserves right to require additional testing to re-affirm suitability of completed work including compacted soils which have been exposed to adverse weather conditions.

END OF SECTION

SECTION 02 41 00

DEMOLITION & ABANDONMENT

1.1 DESCRIPTION

A. The work of this Section includes all demolition, removal, salvage and disposal of existing structures, piping, pavement and other miscellaneous materials.

1.2 SUBMITTALS

A. As specified in Division 01 Section 01 33 23 “Submittal Procedures.”

B. Certifications and Testing consistent with Division 01 Section 01 33 23 “Submittal

Procedures” and including:

1. Permit for transport and disposal of debris.

2. Proposed method of demolition, proposed schedule, sequence of work, and proposed method and schedule for removing, maintaining, and re-establishing facilities and utilities prior to scheduling the preconstruction meeting.

1.3 SITE CONDITIONS

A. Protection

1. Erect barriers, fences, guardrails, enclosures, chutes, and shoring around all construction activities to protect personnel, structures, and utilities remaining intact.

2. Protect designated trees and plants from damage.

B. Maintaining Traffic

1. Assure minimum interference with roads, streets, driveways, sidewalks, and adjacent facilities.

C. Utility Lines and Services

1. Keep existing structures to remain and adjacent structures intact and in operation.

2. Obtain permission to disrupt any utilities or services temporarily or permanently.

3. Coordinate with utility company for disconnecting existing service on structures to be demolished.

4. Coordinate with Park for services to be disconnected and schedule with utility company.

Schedule and coordinate with Park and utility company far enough in advance so as to not delay work.

D. Prior to demolishing a utility or facility, notify the Contracting Officer three (3) days in advance, and plan the demolition such that the demolition will not create an unsafe condition or interfere with ongoing operations.

E. Where demolition must occur in such a sequence that a portion of this facility must remain operational, coordinate this aspect with the Contracting Officer.

F. Do not burn waste material. All organic material removed from the construction area must be properly chipped and recycled or removed from the Park and properly disposed.

G. Provide adequate fire protection. Keep area clear of hazardous substances and debris.

H. Maintain access to exits at all time.

I. Separate demolition area from building to remain with temporary dustproof partitions.

J. Provide temporary weather protection to prevent damage to structure and interior area.

K. Explosives are not permitted.

PART 2 - PRODUCTS

2.1 BACKFILL MATERIALS

A. Native soils, stone, gravel, or sand, free from debris, frozen materials, and roots and other organic matter may be used for backfill of demolition areas that are not designated for new construction. Pieces of concrete and masonry smaller than one (1) square foot and suitably shaped for compaction may be used in backfill more than one (1) foot below finished grade.

Restrictions to Backfill:

B. See Section 01 11 00 – Summary of Work; Subsection 1.4.C Preservation of Natural Features

Item 4.

A. Verify that areas to be demolished are unoccupied and discontinued in use.

B. Do not commence work until conditions are acceptable to Contracting Officer

3.2 PREPARATION

A. Arrange for and verify termination of utility services to include capping lines.

B. Remove items scheduled to be salvaged and place in designated storage area.

3.3 DEMOLITION/ABANDONMENT

A. All debris from demolition and abandonment shall be removed off the Park and disposed of in a legal manner. Any material which the Contracting Officer may wish to save or reuse shall be stored per the Contracting Officer direction.

B. General

1. Dampen debris and use temporary enclosures as necessary to control dust.

2. Do not use water to the extent it causes flooding, contaminated runoff, or icing.

3. Break concrete and masonry into sections less than three (3) feet in any dimension and dispose of off-site.

4. Repair damage to adjacent structures.

5. Make neat saw cuts around areas of concrete to be removed, where remaining concrete is to be incorporated into new work.

6. Remove existing exposed piping to the extent shown on the Drawings.

7. Remove buried piping to the extent shown on the Drawings.

8. All equipment to be removed or replaced shall be done so in a safe manner and such that the equipment and any associated piping or wiring is not damaged.

9. All debris from demolition and abandonment shall be removed off the Park and disposed of in a legal manner. Any material which the Contracting Officer may wish to salvage shall be cleaned and stored per the Contracting Officer’s direction and requirements of this specification.

3.4 HAZARDOUS MATERIALS

A. If suspected hazardous materials are encountered during demolition of existing facilities, all work is to be stopped immediately and the Contracting Officer is to be immediately notified.

3.5 DISPOSAL

A. Place demolition debris in debris boxes onsite for weekly removal.

B. Dispose of unsuitable and excess material off-site. Contractor shall recycle all recyclable demolished materials. Contractor shall submit names and contact information for proposed recyclers to the Contracting Officer prior to beginning demolition. Only materials not suitable for recycling shall be disposed of in a land fill.

C. Disposal of demolition material shall be in accordance with all EPA, OSHA, and Nevada requirements for materials disposal.

3.6 SALVAGE

A. Carefully remove items to be salvaged and delivered to Contracting Officer’s storage

1. Store and protect items indicated to be salvaged

2. Replace any items damaged through carelessness in removal, storage, or handling with new items of same type.

3. Do not reuse materials or equipment not specifically indicated or specified to be reused.

B. Preparation of Equipment for Storage

1. Identify each component with markings or tags to show its position in the assembly and the assembly of which it belongs.

2. Place small parts in wooden boxes and clearly mark contents on the outside.

3. Thoroughly clean and dry equipment.

4. Coat unpainted surfaces with two (2) coats of rust-preventive compound.

5. Attach unit to suitable crate bottom.

6. Enclose unit in polyethylene film and seal all seams and the film to the base of the unit with tape.

7. Construct crate of wooden slats around top and sides of unit.

8. Attach permanent instruction tag to outside of crate stating "This unit has been prepared for storage.”

DIVISION 05

METALS

SECTION 05 50 00

METAL FABRICATIONS

1.1 SUMMARY

A. Section Includes:

1. Miscellaneous steel framing and supports.

2. Prefabricated building columns.

3. Shelf angles.

4. Miscellaneous steel trim.

5. Metal bollards.

6. Loose bearing and leveling plates.

B. Products furnished, but not installed, under this Section include the following:

1. Loose steel lintels.

2. Anchor bolts, steel pipe sleeves,

3. Retain subparagraph below if weld plates and angles are not specified in same Section as work that is welded to them.

4. Steel weld plates and angles for casting into concrete for applications where they are not specified in other Sections.

1.2

ACTION SUBMITTALS

A. Product Data: For the following:

1. Prefabricated building columns.

2. Paint products.

3. Grout.

B. Shop Drawings: Show fabrication and installation details. Include plans, elevations, sections, and details of metal fabrications and their connections. Show anchorage and accessory items.

2.1 PERFORMANCE REQUIREMENTS

A. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes acting on exterior metal fabrications by preventing buckling, opening of joints, overstressing of components, failure of connections, and other detrimental effects.

1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces

2.2 METALS

A. Metal Surfaces, General: Provide materials with smooth, flat surfaces unless otherwise indicated.

For metal fabrications exposed to view in the completed Work, provide materials without seam marks, roller marks, rolled trade names, or blemishes.

B. Steel Plates, Shapes, and Bars: ASTM A 36.

C. Stainless-Steel Bars and Shapes: ASTM A 276, Type 304

D. Steel Tubing: ASTM A 500, cold-formed steel tubing.

E. Steel Pipe: ASTM A 53, Standard Weight (Schedule 40) unless otherwise indicated.

F. Slotted Channel Framing: Cold-formed metal box channels (struts) complying with MFMA-4.

1. Size of Channels: As indicated on Structural plans.

G. Cast Iron: Gray iron, ASTM A 48.

2.3 FASTENERS

A. General: Unless otherwise indicated, provide Type 304 stainless-steel fasteners for exterior use and zinc-plated fasteners with coating complying with ASTM B 633 or ASTM F 1941, Class

Fe/Zn 5, at exterior walls. Select fasteners for type, grade, and class required.

1. Provide stainless-steel fasteners for fastening aluminum.

2. Provide stainless-steel fasteners for fastening stainless steel.

3. Provide stainless-steel fasteners for fastening nickel silver.

B. Cast-in-Place Anchors in Concrete: Either threaded type or wedge type unless otherwise indicated; galvanized ferrous castings, either ASTM A 47malleable iron or ASTM A 27 cast steel.

Provide bolts, washers, and shims as needed, all hot-dip galvanized per ASTM F 2329.

C. Post-Installed Anchors: Torque-controlled expansion anchors or chemical anchors.

1. Material for Interior Locations: Carbon-steel components zinc plated to comply with

ASTM B 633 or ASTM F 1941, Class Fe/Zn 5, unless otherwise indicated.

2. Material for Exterior Locations and Where Stainless Steel Is Indicated: Alloy Group 2 stainless-steel bolts, ASTM F 593, and nuts, ASTM F 594.

D. Slotted-Channel Inserts: Cold-formed, hot-dip galvanized-steel box channels (struts) complying with MFMA-4, 1-5/8 by 7/8 inches by length indicated with anchor straps or studs not less than

3 inches long at not more than 8 inches o.c. Provide with temporary filler and tee-head bolts, complete with washers and nuts, all zinc-plated to comply with ASTM B 633, Class Fe/Zn 5, as needed for fastening to inserts.

2.4 MISCELLANEOUS MATERIALS

A. Low-Emitting Materials: Paints and coatings shall comply with the testing and product requirements of the Nevada Division of Environmental Protection (NDEP).

B. Shop Primers: Provide primers that comply with Section 09 90 00 "Paints & Coatings".

C. Universal Shop Primer: Fast-curing, lead- and chromate-free, universal modified-alkyd primer complying with MPI#79 and compatible with topcoat.

1. Use primer containing pigments that make it easily distinguishable from zinc-rich primer.

D. Water-Based Primer: Emulsion type, anticorrosive primer for mildly corrosive environments that is resistant to flash rusting when applied to cleaned steel, complying with MPI#107 and compatible with topcoat.

1. Products: Subject to compliance with requirements, available products that may be incorporated into the Work.

E. Epoxy Zinc-Rich Primer: Complying with MPI#20 and compatible with topcoat.

1. Products: Subject to compliance with requirements.

F. Galvanizing Repair Paint: High-zinc-dust-content paint complying with SSPC-Paint 20 and compatible with paints specified to be used over it.

G. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187.

H. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107. Provide grout specifically recommended by manufacturer for interior and exterior applications.

2.5 FABRICATION, GENERAL

A. Shop Assembly: Preassemble items in the shop to greatest extent possible. Use connections that maintain structural value of joined pieces.

B. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges. Remove sharp or rough areas on exposed surfaces.

C. Weld corners and seams continuously to comply with the following:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended.

D. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners or welds where possible. Locate joints where least conspicuous.

E. Fabricate seams and other connections that are exposed to weather in a manner to exclude water.

Provide weep holes where water may accumulate.

F. Where units are indicated to be cast into concrete or built into masonry, equip with integrally welded steel strap anchors not less than 8 inches from ends and corners of units and 24 inches o.c.

2.6 MISCELLANEOUS FRAMING AND SUPPORTS

A. General: Provide steel framing and supports not specified in other Sections as needed to complete the Work.

B. Fabricate units from steel shapes, plates, and bars of welded construction unless otherwise indicated. Fabricate to sizes, shapes, and profiles indicated and as necessary to receive adjacent construction.

C. Fabricate steel girders for wood frame construction from continuous steel shapes of sizes indicated.

1. Where wood nailers are attached to girders with bolts or lag screws, drill or punch holes at 24 inches o.c.

D. Fabricate steel pipe columns for supporting wood frame construction from steel pipe with steel baseplates and top plates as indicated. Drill or punch baseplates and top plates for anchor and connection bolts and weld to pipe with fillet welds all around. Make welds the same size as pipe wall thickness unless otherwise indicated.

2.7 PREFABRICATED BUILDING COLUMNS

A. Fire-Resistance Ratings: Provide prefabricated building columns listed and labeled by a testing and inspecting agency acceptable to authorities having jurisdiction for ratings indicated, based on testing according to ASTM E 119.

1. Fire-Resistance Rating: As indicated.

2.8 SHELF ANGLES

A. Fabricate shelf angles from steel angles of sizes indicated and for attachment to concrete framing.

Provide horizontally slotted holes to receive 3/4-inch bolts, spaced not more than 6 inches from ends and 24 inches o.c., unless otherwise indicated.

B. For cavity walls, provide vertical channel brackets to support angles from backup masonry and concrete.

C. Galvanize shelf angles located in exterior walls.

D. Prime shelf angles located in exterior walls with primer specified in Section 09 90 00 “Paints &

Coatings.”

E. Furnish wedge-type concrete inserts, complete with fasteners, to attach shelf angles to cast-in-place concrete.

2.9 MISCELLANEOUS STEEL TRIM

A. Unless otherwise indicated, fabricate units from steel shapes, plates, and bars of profiles shown with continuously welded joints and smooth exposed edges. Miter corners and use concealed field splices where possible.

B. Provide cutouts, fittings, and anchorages as needed to coordinate assembly and installation with other work.

C. Galvanize exterior miscellaneous steel trim.

D. Prime exterior miscellaneous steel trim with primer specified in Section 09 90 00 “Paints &

Coatings.”

2.10 METAL BOLLARDS

A. Fabricate metal bollards from schedule 80 steel pipe

B. Prime bollards with primer specified in Section 09 90 00 “Paints & Coatings.”

2.11 DOWNSPOUT GUARDS

A. Prime downspout guards with primer specified in Section 09 90 00 “Paints & Coatings.”

B. Provide anchors for embedding units in concrete, either integral or applied to units, as standard

2.12 LOOSE BEARING AND LEVELING PLATES

A. Provide loose bearing and leveling plates for steel items bearing on masonry or concrete construction. Drill plates to receive anchor bolts and for grouting.

2.13 LOOSE STEEL LINTELS

A. Fabricate loose steel lintels from steel angles and shapes of size indicated for openings and recesses in masonry walls and partitions at locations indicated.

B. Galvanize loose steel lintels located in exterior walls.

C. Prime loose steel lintels located in exterior walls with primer specified in Section 09 90 00 “Paints

& Coatings.”

2.14 STEEL WELD PLATES AND ANGLES

A. Provide steel weld plates and angles not specified in other Sections, for items supported from concrete construction as needed to complete the Work. Provide each unit with no fewer than two integrally welded steel strap anchors for embedding in concrete.

2.15 FINISHES, GENERAL

A. Finish metal fabrications after assembly.

2.16 STEEL AND IRON FINISHES

A. Galvanizing: Hot-dip galvanize items as indicated to comply with ASTM A 153/A 153M for steel and iron hardware and with ASTM A 123/A 123M for other steel and iron products.

3.1 INSTALLATION, GENERAL

A. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing metal fabrications. Set metal fabrications accurately in location, alignment, and elevation; with edges and surfaces level, plumb, true, and free of rack; and measured from established lines and levels.

B. Fit exposed connections accurately together to form hairline joints. Weld connections that are not to be left as exposed joints but cannot be shop welded because of shipping size limitations. Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication and are for bolted or screwed field connections.

C. Field Welding: Comply with the following requirements:

1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals.

2. Obtain fusion without undercut or overlap.

3. Remove welding flux immediately.

4. At exposed connections, finish exposed welds and surfaces smooth and blended so no roughness shows after finishing and contour of welded surface matches that of adjacent surface.

D. Fastening to In-Place Construction: Provide anchorage devices and fasteners where metal fabrications are required to be fastened to in-place construction.

E. Provide temporary bracing or anchors in formwork for items that are to be built into concrete, masonry, or similar construction.

3.2 INSTALLING METAL BOLLARDS

A. Fill metal-capped bollards solidly with concrete and allow concrete to cure seven days before installing.

B. Anchor bollards to existing construction with anchor bolts. Provide four 3/4-inch bolts at each bollard unless otherwise indicated.

C. Anchor bollards in concrete with pipe sleeves preset and anchored into concrete in formed or core-drilled holes. Fill annular space around bollard solidly with nonshrink grout.

D. Fill bollards solidly with concrete, mounding top surface to shed water.

3.3 INSTALLING BEARING AND LEVELING PLATES

A. Clean concrete and masonry bearing surfaces of bond-reducing materials, and roughen to improve bond to surfaces. Clean bottom surface of plates.

B. Set bearing and leveling plates on wedges, shims, or leveling nuts. After bearing members have been positioned and plumbed, tighten anchor bolts. Do not remove wedges or shims but, if protruding, cut off flush with edge of bearing plate before packing with nonshrink grout. Pack grout solidly between bearing surfaces and plates to ensure that no voids remain.

3.4 ADJUSTING AND CLEANING

A. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and abraded areas. Paint uncoated and abraded areas with the same material as used for shop painting to comply with SSPC-PA 1 for touching up shop-painted surfaces.

B. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas and repair galvanizing to comply with ASTM A 780.

SECTION 05 50 16

MISCELLANEOUS METAL FOR UTILITIES

PART 1 – GENERAL

1.1 SUMMARY

A. This section contains specifications for miscellaneous metals not specified in other sections including steel used to support piping.

1.2 RELATED WORK

A. Section 09 90 00 – Paints & Coatings

1.3 REFERENCE

A. Applicable provisions of Division 1 shall govern work under this Section.

B. AISC - Specifications and Code of Standard Practice

C. AISC - Structural Shop Drafting Textbook.

D. ASTM A36 - Structural Steel

E. ASTM A307 - Carbon Steel Bolts and Studs, 60,000 psi Tensile Strength

F. ASTM A325 - Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi

Minimum Tensile Strength.

G. ASTM A500 - Cold Formed Welded and Seamless Carbon Steel Structural Tubing in Round and Shapes.

H. ASTM A992 - Steel for Structural Shapes for Use in Building Framing.

I. AWS A2.0 - Standard Welding Symbols

J. AWS D1.1 - Structural Welding Code

1.4 FIELD MEASUREMENTS

A. Take measurements in the field as required to verify or supplement dimensions shown on the drawings and assume responsibility for fit of new work to work in place.

1.5 SUBMITTALS

A. Refer to Division 1 of the Specifications for submittal procedures.

B. Product Data: Submit manufacturer’s product data for pre-manufactured components.

C. Approval will be for the size and arrangements of the principal and auxiliary members. Errors in dimensions shown on shop drawings shall be the responsibility of the Contractor. Contract drawings shall not be used as erection or shop drawings.

D. Except as shown otherwise, structural steel details shall conform to standard practice as illustrated in the Structural Shop Drafting Textbook of the AISC. Design, fabrication, and erection of all shop and field connections by this Contractor.

E. Submit 3 copies for review.

2.1 STRUCTURAL STEEL FOR PIPE, ANCHORS, GUIDES, SUPPORTS, AND STANCHIONS

A. Structural and Miscellaneous Steel: W-shaped members shall conform to ASTM A992 fy = 50

KS1.

B. Structural tubing shall conform to ASTM A500 Grade B.

C. Angle plates and channels shall conform to ASTM A36.

D. Support, guide, and anchor steel for steel piping as shown on drawings.

E. Priming for Steam, Condensate, and Air Pipe: Shop primed painting of structural steel shall be two coats (6 DMils Thickness total) of ethyl silicate inorganic zinc-rich equal to TNEMEC

Tneme-zinc 90E-92. Primer shall be suitable for the temperature of at least 500° F. Shop surface prep shall be SSPC-SP6 Commercial Blast Cleaning.

F. All support steel embed plates shall be hot-dipped galvanized.

G. High strength bolts, nuts, and washers shall be made of heat-treated steel; and shall conform to the requirements of ASTM A325. Provide interference body bearing type where indicated.

H. Headed welded studs shall conform to ASTM A307.

I. Epoxy anchors shall be HIT HY500 as manufactured by Hilti, Inc., or approved equal.

J. All anchor rods, anchor bolts, nuts, and washers shall be 316 stainless steel.

2.2 FRAMES, COVERS, ACCESS HATCHES

A. Furnish manhole entrance covers and frames as shown. Frames shall be installed as shown on the drawings.

B. Cover: 1/4“ thick aluminum diamond plate, 300 psf live load rating, mill finish, lifting mechanism with reinforced composite tubes and electro-coated compression springs, automatic hold-open arm, forged aluminum hinges with stainless steel pins, neoprene gasketed standard slam lock with keyed cylinder lock and underside release knob.

C. Cover and frames shall be Bilco Type J-AL, Halliday Type WIR, or approved equal.

D. Frame: 1/4” thick extruded aluminum channel with continuous concrete anchor, with continuous EPDM debris gasket and 1-1/2” aluminum coupling for the drain.

E. Guarantee: 10-year material.

2.3 DRY PIT/SUMP PUMP GRATE FRAMES

A. Sump pump grate frames shall be hot-dipped galvanized steel.

2.4 MANHOLE LADDERS

A. Construct ladders of 3/8 x 2-1/2" steel bar side rails with 3/4" diameter twisted bar steel rungs, headed into rails, approximately but not over 12" o.c. Ream holes inside rails, plug weld solid and grind smooth.

B. Anchor ladder at bottom and top and intermediate points not over 5'-0" o.c. with brackets secured to the wall with expansion or toggle bolts. Bolts shall be Red Head stainless steel bolts and washers. Ladders shall have a 2” HDPE block under the floor-mounted anchors.

C. Ladders shall be hot-dip galvanized.

2.5 LADDER “SAFETY POST”

A. Manufacturer: Bilco “Ladder up LU-2”, Halliday, Okeeffe’s or approved equal.

B. Provide galvanized assembly with release rod and pull-up loop.

C. The safety post shall be steel. The safety post shall NOT have a twist-type locking mechanism.

3.1 FABRICATION

A. The mechanical contractor shall provide steel embedment plates for steel pipe and anchor bolts for pipe supports, anchors, and guides for General Contractor to install.

B. Work shall be made and erected square, plumb, straight, and true, smooth, accurately fitted joints and intersections. Work shall be reinforced and anchored in place.

C. Shearing and punching shall leave clean, true lines and surfaces. Weld permanent connections.

Insofar as possible, work shall be fitted and shop assembled, ready for erection. At all materials exposed to skin welds shall be ground smooth.

D. Grind off sharp areas of exposed steel including sheared edges.

E. Do cutting, fitting, drilling, welding, tapping, etc., as may be required to complete this work and to join or accommodate work of other trades.

F. Any steel pipe anchors, guides, and supports shall be shop primed and intermediate coat applied following paint requirements of Section 09 90 90 – Paints & Coatings.

G. Welding shall be following the code of the American Welding Society. Before welding, clean surfaces of loose scale, rust, paint, or other foreign matter and properly align. After welding, the brush welds with wire brushes.

H. Welds shall show uniform section, smoothness of weld metal, weather edges without overlaps, and freedom from porosity and clinkers. Where necessary to achieve smooth connections, joints shall be dressed smooth. All welding shall be done by certified welders.

3.2 GENERAL

A. Include fabrication and erection of all metalwork complete, including all required shapes, clip angles, bolts, hangers, and accessories to complete metalwork. Grind off sharp areas of exposed metals including sheared edges.

B. Except as amended herein, materials and workmanship shall be following each applicable and appropriate standard practice issued by the National Association of Architectural Metal

Manufacturers.

C. Fabricate structural steel connections, parts, and accessories following the current edition of

Specifications and Code of Standard Practice adopted by AISC.

D. Metals shall be made with structural properties to safely sustain and withstand stresses and strains to which normally subjected, true to detail, clean, straight, with sharply defined profiles, lines, and angles, and unless otherwise noted, with smooth finished surfaces.

E. The contractor shall be responsible for the location and levels of work of this Section, except for such parts as may be delivered to others and set by them. In such cases, this Contractor shall assist others in properly locating those parts.

F. Coating of aluminum access hatches frames: Coat aluminum frames that contact concrete with a bitumastic or epoxy coating. Where frame coating has been damaged or is missing recoat before pouring concrete.

DIVISION 06

WOOD, PLASTICS, & COMPONENTS

SECTION 06 10 00

CARPENTRY

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of contract, including General Conditions and Division 1

Specification Sections, apply to work of this Section.

1.2 SECTION INCLUDES

A. Rough Carpentry

1.3 REFERENCES

A. All references shall be the latest adopted edition unless noted otherwise.

B. ASTM C 79 - Standard Specification for Gypsum Sheathing Board.

C. AWPA C2 - Lumber, Timbers, Bridge Ties and Mine Ties—Preservative Treatment by

Pressure Processes; American Wood-Preservers' Association.

D. AWPA C20 - Structural Lumber--Fire Retardant Treatment by Pressure Processes; American

Wood-Preservers' Association.

E. PS 20 - American Softwood Lumber Standard.

F. IBC – International Building Code, 2012 Edition.

G. ICC – International Code Council

H. WCLB (GR) - Standard Grading and Dressing Rules No. 17; West Coast Lumber Inspection

Bureau.

I. WWPA G-5 - Western Lumber Grading Rules; Western Wood Products Association.

1.4 SUBMITTALS

A. Refer to Section Division 1 of the specifications for submittal procedures.

1.5 QUALITY ASSURANCE

A. Lumber: Comply with PS 20 and approved grading rules and inspection agencies.

1. Acceptable Lumber Inspection Agencies: WCLB and WWPA.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Cover wood products to protect against moisture and growth of mold/mildew. Support stacked products to prevent deformation and to allow air circulation.

2.1 DIMENSION LUMBER

A. Species: As specified in the General Notes on the Drawings.

B. Grade: As specified in the General Notes on the Drawings.

C. Sizes: Nominal sizes as indicated on drawings, S4S.

D. Moisture Content: Maximum 19 percent, stack or kiln-dried.

E. Backing: 2 x 6 and larger solid lumber, cut from No. 2 Douglas Fir/Larch dimension lumber that is free of large knots, splits or other defects that would reduce the strength of the backing piece.

F. Vent Blocking: 2x lumber cut from No. 2 Douglas Fir/Larch that is free of large knots, splits or other defects that would reduce the strength of the blocking piece.

1. Drill vent holes and attach galvanized wire screen securely over vent openings to prevent entrance of insects and animals.

2.2 TIMBERS

A. Species: As specified in the General Notes on the Drawings.

B. Grade: As specified in the General Notes on the Drawings.

C. Sizes: Nominal sizes as indicated on drawings, S4S.

D. Moisture Content: Maximum 19 percent, stack-dried.

E. Wood Nailers & Insulation Stops For Roofing: Preservative pressure treated wood, No. 2

Hem/Fir or Douglas Fir/Larch.

F. For the wood purlins that are trimmed/ripped and are exposed to view and are to receive a stained/clear finish, make sure no burn marks are exposed to view.

2.3 MANUFACTURED LUMBER

A. Manufactured (Engineered) Parallel-Strand Framing Lumber: Provide as specified in the

General Notes on the Drawings.

2.4 CONSTRUCTION PANELS

A. APA Rated Subflooring: As specified in the General Notes on the Drawings.

B. APA Rated Roof Sheathing: As specified in the General Notes on the Drawings.

C. APA Rated Roof Sheathing under Asphalt Shingles: T&G plywood sheathing meeting the requirements for roof sheathing as specified in the General Notes on the Drawings.

D. APA Rated Wall Sheathing: As specified in the General Notes on the Drawings.

E. Miscellaneous Panels:

1. Electrical /Phone Component Mounting: PS 1, B-C, exterior grade, fire retardant treated.

2.5 ACCESSORIES

A. Fasteners, Anchors and Anchor bolts: As specified in the General Notes on the Drawings for structural applications.

1. Fasteners on Building Exterior, in High Humidity or in Preservative Pressure Treated

Wood: Stainless steel or hot-dipped galvanized.

a. Use only stainless steel fasteners in wood treated with ACZA preservative treatment.2. Anchor For Concrete and Masonry: As specified in the General Notes on the Drawings for structural applications and the following:

b. Concealed Location: Zinc plated steel, expansion type fasteners manufactured by

Rawl or Hilti.

c. Exposed Location: Hot-dipped galvanized or stainless steel.

d. Preservative Pressure Treated Wood: Hot-dipped galvanized or stainless steel.

1) Use only stainless steel anchors in wood treated with ACZA preservative treatment.

B. Die-Stamped Framing Connectors: As specified on the Structural Drawings; hot dipped galvanized steel, ICC approved, Simpson StrongTie or similar.

C. Joist Hangers: As specified on the Structural Drawings; hot dipped galvanized steel, ICC approved, sized to suit framing conditions and loads, Simpson StrongTie or similar.

D. Sill Gasket on Top of Foundation Wall: One-fourth (1/4) inch thick, match width of sill plate, ribbed closed cell plastic foam from continuous rolls; Owens Corning FoamSealR or similar.

E. Construction Adhesive: APA AFG-01, Waterproof, solvent base, air cure type, cartridge dispensed.

F. Metal Screen (Insect Screen): Heavy-duty hot-dipped galvanized steel woven wire mesh, 1/8 inch square opening, supplied in rolls.

1. Staples for Attaching Metal Screen: Galvanized or stainless steel, 16 gauge, 7/16” crown, 1 inch minimum length, power actuated.

G. Weather Resistive Barrier System (WRB): Specified in Division 07 “Thermal & Moisture

Protection.”

H. Building Paper: 30 lb. asphalt saturated felt.

2.6 FACTORY WOOD TREATMENT

A. Fire Retardant Treatment: AWPA Treatment C20, Exterior Type, chemical treatment pressure impregnated.

B. Preservative Pressure Treatment (P.P.T.) of Lumber Above Grade: AWPA Treatment C2 using waterborne preservative to 0.25 percent retention.

1. Kiln dry after treatment to maximum moisture content of 19 percent.

2. Do not incise wood exposed to view in the finish construction.

3. Treat wood in contact with roofing, flashing, or waterproofing.

4. Treat wood in contact with masonry or concrete.

C. Preservative Pressure Treatment (P.P.T.) of Lumber in Contact with Soil: AWPA Treatment

C2 using waterborne preservative designated in AWPA C2 as suitable for ground contact to

0.40 percent retention.

3.1 COORDINATION

A. Review, coordinate and accommodate work of other trades that interface with, affect or are affected by the work of this Section so as to facilitate the execution of the overall Work of this project in a coordinated and efficient manner.

B. Coordinate the layout of wall, floor, ceiling and roof framing to accommodate the location of mechanical and electrical penetrations and recessed items and to minimize cutting framing members and/or framing openings in these assemblies.

C. Coordinate the location of holes in framing and sheathing to assure free flow of attic ventilation air through building framing.

D. Coordinate the layout and location of wall framing and solid two by (2x) wood backing for attachment of wood trim.

E. Coordinate the layout and location of wall framing and solid two by (2x) wood backing required for attachment and support of surface-mounted HVAC items specified in Division 23.

H. Coordinate the layout and location of wall framing and solid two by (2x) wood backing required for attachment and support of surface-mounted electrical items specified in Division 26.

3.2 GENERAL

A. Drilling, Notching & Cutting: Coordinate and control drilling, notching and cutting of all framing members required to admit or install work of other trades, do not violate the structural integrity of any wood framed members, comply with restrictions and requirements of

Contracting Officer, IBC and local Building Official.

B. Nailing: Nailing shall conform to the size and spacing shown on the Drawings; where nailing is not indicated, provide nailing per IBC Table 2304.9.1. Fastener Schedule.

C. Wood In Contact With Concrete & Masonry shall be preservative pressure treated.

1. At ends of beams, behind engineered wood ledgers or at similar situations, separate wood from concrete or masonry with building paper.

3.3 FRAMING INSTALLATION

A. Cut and fit framing members accurately, set members level, plumb, and true to line. Discard crooked or twisted pieces or with defects that would lower required strength or result in unacceptable appearance of exposed members.

B. Wall Plates: Comply with size(s) shown on Structural Drawings.

1. Bottom plates bearing on concrete shall be preservative pressure treated.

2. Bore holes of proper diameter for anchor bolts accurately; oversized or elongated holes are not acceptable.

3. Install continuous sill gasket under bottom plates of exterior walls.

C. Wall Framing: Cull out crooked, twisted or inconsistent width framing, align framing members so that finish walls are straight and free of waviness.

D. Make provisions for temporary construction loads, and provide temporary bracing sufficient to maintain structure in true alignment and safe condition until completion of erection and installation of permanent bracing.

E. Install structural members full length without splices.

F. Comply with member sizes, spacing, and configurations indicated, and fastener size and spacing indicated on Drawings and General Notes, but not less than required by applicable codes.

G. Install horizontal spanning members with crown edge up and not less than 1-1/2 inches of bearing at each end.

H. Provide framing members at all vertical ends/edges of GWB and wall sheathing and at ends of floor sheathing.

I. Construct headers at floor, roof and wall openings required by the design and work of other trades. Where not shown, provide double joist headers; use metal joist hangers unless otherwise detailed.

J. Provide mid-span bridging at joists as shown on the Drawings and at all spans in excess of 8 feet. Fit solid blocking at ends of members and at bearing points.

K. Frame wall openings required by the design and for work of other trades. Where not shown, provide a minimum two or more studs at each jamb; support headers on cripple studs.

L. Provide blocking between framing members wherever required by Drawings, IBC, Building

Official, or good construction practice.

M. Vent Blocking: Install vent blocking in roof framing with batt insulation under the roof deck to allow code required ventilation above the insulation. Coordinate placement and layout of vent holes to permit unrestricted flow of ventilation air from roof eave to roof peak in each roof joist space.

N. Fire Stops: Install solid two by (2x) lumber blocking fire stops (or other approved material) in accordance with the requirements of the IBC and the Building Official including, but not limited to the following locations:

1. In concealed spaces of stud walls and partitions, including furred spaces, at the ceiling and floor levels and at 10-foot intervals both horizontal and vertical.

2. At all interconnections between concealed vertical and horizontal spaces such as occur at soffits, drop ceilings, cove ceilings and suspended lay-in ceilings.

3. Concealed spaces behind combustible trim and finish: Fire stop at intervals not exceeding 10 feet.

4. Concealed spaces behind exterior cornices or other elements: Fire stop at intervals not exceeding 20 feet.

5. In wall framing in line with stair stringers and between stair stringers and wall.

O. Provide additional framing members and/or modifications required to accommodate work of other trades.

P. Provide backing and miscellaneous members as indicated or as required to support work provided by other trades (finishes, fixtures, specialty items, trim, etc.).

3.4 INSTALLATION - WOOD BACKING

A. Provide backing and miscellaneous two by (2x) framing members as indicated or as required to support work provided by other trades (finishes, fixtures, specialty items, trim, etc.).

B. Door Hardware:

1. Provide 2x6 backing for door wall stops.

2. Provide 2x8 solid wood backing for magnetic door hold-opens.

C. Acoustical Treatment: Provide solid two by (2x) wood backing for attachment points that do not occur on framing members to facilitate secure attachment of acoustical treatment edge frame; refer to Division 09 “Finishes” and acoustical treatment manufacturer for installation requirements.

D. Wall-Mounted Adjustable Shelving: Provide solid two by (2x) wood backing for wall- mounted adjustable shelving standards attachment points that do not occur on framing members to provide secure support/attachment.

3.5 INSTALLATION OF ACCESSORIES AND MISCELLANEOUS WOOD

A. Install sill gasket directly on concrete foundation under exterior wall plates. Puncture gasket cleanly and fit tightly to protruding foundation anchor bolts.

B. Coordinate installation of glue laminated structural units, prefabricated wood trusses, and plywood web joists.

C. Construct curbs at roof openings except where prefabricated curbs are provided. Form corners by alternating lapping side members.

D. Backing for Owner Installed Items: Provide backing for Owner installed items indicated on

Drawings.

3.6 INSTALLATION OF CONSTRUCTION PANELS

A. Subflooring: Install panels perpendicular to framing with ends staggered and sheet ends centered over firm bearing. Apply continuous bead of subfloor glue to framing, place panel and nail to framing at spacing indicated on Drawings.

1. Use only full sized panels, cut to fit; do not use cutoff ends pieced together where a full size panel will fit.

2. Edge/End Gap: Install sheathing panels with gap between sheets as recommended by

APA.

B. Roof Sheathing: Secure panels perpendicular to framing members, with ends staggered and sheet ends over firm bearing.

2. Edge/End Gap: Install sheathing panels with gap between sheets as recommended by

APA.

3. Provide solid edge blocking between sheets where shown on Drawings.

4. Nail panels to framing at spacing indicated on Drawings.

5. Provide ventilation holes through sheathing for each roof joist bay or areas as indicated on Drawings and as required for free flow of code required attic ventilation air.

C. Wall Sheathing: Orient sheathing panels with long dimension perpendicular to wall studs and ends over firm bearing, stagger end joints between adjacent panels, securely nail as noted on

Structural Drawings or, where not noted, per code.

2. Edge/End Gap: Install sheathing panels with gap between sheets as recommended by

APA.

3.7 WOOD NAILERS & INSUALTION STOPS FOR ROOFING

A. Install wood nailers & insulation stops for roofing wherever shown or required by roofing system manufacturer.

B. Attach securely to building structure with hot-dipped galvanized fasteners.

3.8 SITE APPLIED WOOD TREATMENT

A. Apply preservative treatment compatible with factory applied treatment at site- sawn cuts, complying with manufacturer's instructions.

B. Allow preservative to dry prior to erecting members.

3.9 DRILLING, CUTTING AND NOTCHING

A. Do not drill, cut, notch or alter any structural framing, except as noted on the Drawings and in this specification, without the approval of the Contracting Officer.

3.10 WORKMANSHIP

A. Carpentry work shall be accomplished using the best workmanship, including the following:

1. Crooked, bowed, twisted or damaged lumber culled out and used for blocking/backing.

2. End cuts at proper angle and length for tight fit.

3. Nailed connections free of splitting or damage.

4. Framing aligned plumb and square.

5. Framing conforming to specified tolerances.

6. Bolt/anchor holes not oversized or misaligned.

7. Panel ends aligned at center of supporting framing member.

8. Panel ends and edges properly gapped.

9. Consistent nail spacing on panels.

B. Any part of the carpentry work installed with improper or poor workmanship shall be removed and replaced at Contractor’s expense.

3.11 TOLERANCES

A. Framing Members: 1/4 inch from true position, maximum, provided other tolerances are met.

B. Wall Plane (Flatness): Maximum of ¼” in 10’-0” out of plane (this equates to no more than

1/8” gap at each end of a 10’-0” long straightedge center on high spot in wall, or no more than

1/8” gap at center of 10’-0” long straightedge centered on low spot in wall).

C. Surface Flatness of Floor: 1/8 inch in 10 feet maximum, and 1/4 inch in 30 feet maximum.

D. Variation from Plane (Other than Floors): 1/8 inch in 10 feet maximum, and 1/4 inch in 30 feet maximum.

DIVISION 07

THERMAL & MOISTURE PROTECTION

SECTION 07 52 00

MODIFIED BITUMINOUS SHEET ROOFING

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Modified bituminous membrane torch applied (heat welded) roofing.

B. Modified bituminous membrane hot mopped applied roofing.

C. Modified bituminous membrane cold adhesive applied roofing.

D. Modified bituminous membrane Self adhered roofing.

E. Modified bituminous membrane mechanically attached.

F. Roof Insulation.

1.2 RELATED SECTIONS

A. Division 05 “Metals”: Decking and decking substrate preparation.

1.3 REFERENCES

A. ASTM C1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal

Insulation Board.

B. ASTM D41 - Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing.

C. ASTM D312 - Standard Specification for Asphalt used in Roofing.

D. ASTM D1970 - Specification for Sheet Materials, Self-Adhering Polymer Modified

Bituminous, Used as Steep Roofing Underlayment for Ice Dam Protection.

E. ASTM D6162 - Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous

Sheet Materials Using a Combination of Polyester and Glass Fiber Reinforcements.

F. ASTM D6163 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified

Bituminous Sheet Materials Using Glass Fiber Reinforcements.

G. ASTM D6164 - Standard Specification for Styrene…