Binder1.pdf

SECTION 4

TECHNICAL SPECIFICATIONS

06E9045

READINESS CENTER REPAIRS

CALIFORNIA NATIONAL GUARD FACILITY

LOCATED AT

5565 EAST AIRWAYS BLVD.

FRESNO, CALIFORNIA

SECTION TITLE NUMBER OF PAGES

DIVISION 1

01016 UNIT PRICE BIDS 1

01600 MATERIAL AND EQUIPMENT 4

01700 CONTRACT CLOSEOUT 3

DIVISION 2

02082 ASBESTOS ABATEMENT 13

REPORT ASBESTOS AND LEAD ANALYSIS 19

DIVISION 6

06110 CARPENTRY 9

DIVISION 7

07500 HIGH IMPACT FLUID APPLIED ROOFING

SYSTEM 8

07536 SBS MODIFIED BITUMEN ROOFING 16

07565 PREPARATION FOR RE-ROOFING 4

07620 SHEET METAL TRIM 7

07631 GUTTERS AND DOWNSPOUTS 7

DIVISION 9

09250 GYPSUM BOARD 9

09511 ACOUSTICAL CEILINGS 6

09650 RESILIANT FLOORING 5

09910 PAINTING 6

DIVISION 15

15010 MECHANICAL REQUIREMENTS 5

15140 HANGERS AND SUPPORTS 4

15420 PLUMBING PIPING 7

15781 PACKAGED GAS-ELECTRIC AIR

CONDITIONING UNITS 9

15783 DIRECT GAS-FIRED MAKE-UP AIR UNIT 7

15800 MECHANICAL VENTILATION 5

15890 DUCTWORK 4

15900 MECHANICAL CONTROLS 4

W91238-10-R-0052 Am-0008

DIVISION 16

16111 CONDUIT 5

16123 BUILDING WIRE AND CABLE 4

16130 BOXES 2

16141 WIRING DEVICES 3

16160 CABINET AND ENCLOSURE 3

16170 GROUNDING AND BONDING 3

16190 SUPPORTING DEVICES 2

16195 ELECTRICAL IDENTIFICATION 2

16510 LIGHTING FIXTURES 6

DRAWINGS 34

SECTION 07500

HIGH IMPACT FLUID APPLIED ROOFING SYSTEM

1.0 GENERAL REQUIREMENTS

The successful application of a polyurethane foam roofing system is dependent upon the experience, technology and common sense of the designer, as well as the experience, integrity and ability of the applicator/contractor.

1.1.� Terms and Conditions

1.1.1 The roofing contractor is the prime

contractor. All subcontractors shall be identified and approved at the time the proposal is submitted. Manufacturer's installation procedures shall be the basis for accepting or rejecting actual workmanship.

1.1.2 Bidders shall be pre-qualified as follows:

a. All bidders shall be contractors who have specifically performed the application of similar sprayed-in-place urethane coating roof systems. Such bidders shall have performed the installation of these systems for not less than ten years under the same company name. Each bidder shall have performed at least fifteen applications of similar size and type totaling no less than one million square feet. Bidders shall submit with the bid a list of projects including date of completion and contact information for verification.

b. The Contractor shall be a current member in good standing with the Spray Polyurethane Foam Alliance and Accreditation Program and shall have successfully completed Accreditation Course 201, Project Management. Completion of Course 101, The Fundamentals of Spray Polyurethane Foam and Coating Systems is the minimum acceptable status in the accreditation program by the supervisor(s) and spray mechanic(s) assigned to the project. A copy of the SPFA membership and the 101 and 201 certifications shall be submitted with the bid.

Amendment 0008

c. Each bidder shall submit a copy of the proposed ten plus ten year guarantee from the manufacturer along with the bid.

d. The contractor shall carry a minimum of $2,000,000 in general liability insurance on a continuing basis. Verification of insurance shall be submitted at the time of bid in the form of a sample insurance certificate.

e. The contractor shall submit with the bid a current license status printout from the Contractors State License Board at http://www.cslb.ca.gov to demonstrate that the license is in good standing.

f. Certification of the Manufacturer: Submit, on corporate letterhead, a letter from both the foam and coating manufacturers stating that the Contractor is a qualified applicator of these products.

g. The contractor shall cooperate as required in performance of the specified inspecting and testing.

h. Failure of the bidder to submit items ‘a’ through ‘f’ in its entirety with the bid will be deemed non-responsive.

1.1.3 Manufacturers shall be pre-qualified as

follows:

a. The manufacturer of the foam and coating shall have been in business for a minimum of ten years and shall have a minimum of 3,000,000 square feet of roofing system installed.

b. The manufacturer shall maintain a minimum of $5,000,000 of product liability insurance on a continuing basis. Verification of insurance shall be submitted at the time of bid in the form of a sample insurance certificate.

c. The foam and coating shall be listed as Class A over existing non-combustible roofing systems by Underwriters Laboratories per UL 790 at the thicknesses intended for use. Submit UL listing, confirming the above, with the bid.

W91238-10-R-0052 http://www.cslb.ca.gov/�

d. Failure of the bidder to submit items ‘a’ through ‘c’ in their entirety will be deemed non-responsive.

1.2 Submittals

1.2.1 Manufacturer's Literature: Submit two

copies of the manufacturer's data sheets regarding specifications, application information and safety information, and safety instructions on each product proposed for use.

1.2.2 Samples: Submit two samples of the proposed

coating system applied on urethane foam. Samples shall be two inches by four inches in size.

1.2.3 Certification of the Manufacturer: Submit, on corporate letterhead, a letter from the roofing material manufacturer stating that the applicator of these products is qualified by the manufacturer.

1.2.4 Similar jobs: The applicator shall submit a

list of five similar sized projects which the contractor has completed in the past five years.

The contractor shall have installed a minimum of 250,000 square feet of the materials proposed for use.

1.2.5 Submit a copy of the manufacturer's sample

warranty.

1.2.6 UL follow up service: The foam and coating

shall be registered under the UL follow up service and bear UL labels.

2.0 MATERIALS AND EQUIPMENT

2.1 Primer: Primer shall be single-component, water-based

primer, black in color or prior approved equal.

2.2 Polyurethane Foam: Polyurethane foam shall be a two-

component polyurethane foam system formulated for use through airless equipment. The product shall meet or exceed the following typical physical properties listed for Ultra-Thane 230 as manufactured by General Coatings, Inc. or prior approved equal:

PROPERTIES VALUE TEST METHOD

Density (sprayed-in-place) 3.0 pcf ASTM D-1622

K Factor Aged 0.17 ASTM C-518

Compressive Strength 50 – 60 psi

ASTM D-1621

Tensile Strength 90 psi ASTM D-1623

Shear Strength 50 – 60 psi

ASTM C-273

Closed Cell Content 95% min. ASTM D-1940

Water Vapor Transmission 1.8 perms ASTM C-355

Water Absorption .017 ASTM D-2842

Flame Spread (ASTM E84) 75 max* ASTM E-84/UL

Roof Deck Classification:

Combustible Deck Class B

ASTM E-84/UL

Non-combustible Deck Class A

ASTM E-84/UL

*This numerical flame spread rating is not intended to reflect hazards presented by this or any other material under actual fire conditions.

2.3 Polyurea Elastomer: Polyurea elastomer shall be a two

component, 100% solids coating formulated for application through heated plural component pumping systems. The product shall meet or exceed the following typical physical properties listed for Ultra-Tuff 2800 as manufactured by General Coatings, Inc. or approved equal:

PROPERTIES VALUE TEST METHOD

Solids by Volume 100% ASTM D-2697

Solids by Weight 100% ASTM D-2369

Hardness Shore D 55 ASTM D-2240

Tensile Strength 2900 psi ASTM D-412

Elongation 430% ASTM D-412

Tear Resistance 420 pli ASTM D-624

Water Absorption <1.5% ASTM D-471

Flash Point >300°F ASTM D-56

Low Temperature Flexibility Pass

180° Bend @ - 40°F

ASTM D-2136

High Temperature >300°F Continuous

Flexibility ASTM D-573

Severe Hail Test Pass FM-4470

2.4 Aliphatic Urethane Surfacing: The top coat shall be

Ultra-Shield 3000, a high build, two component, aliphatic polyurethane elastomer as manufactured by General Coatings, Inc. or prior approved equal, specifically formulated for use as a finish coat over Ultra-Tuff 2800 polyurea membrane roofing system. The coating shall be certified and registered with the Cool Roof Rating Council. Additionally, the coating shall be EPA energy-star rated.

PROPERTIES VALUE TEST METHOD

Solids by Volume 75% ASTM D-2697

Solids by Weight 82% ASTM D-2697

Elongation 450 ± 100 ASTM D-412

Tensile Strength 2200 ±

100 ASTM D-412

Permanent Set at Break

9.0% ASTM D-412

Water Absorption 1.5% ASTM D-471

Duometer Hardness:

Shore A

90 ASTM D-2240

Permeability 0.45 Perms ASTM E-96(B)

Low Temperature Flexibility Pass ASTM D-1737

Solar Reflectance 0.84

Thermal Emitance 0.90

2.5 Equipment: Equipment for spraying polyurethane foam

and polyurea shall be manufactured specifically for the application of these products. The equipment shall be airless, capable of maintaining a 1:1 volume ratio and have primary and hose heaters. The equipment for the application of the acrylic elastomeric shall be an airless type as recommended by the coating manufacturer.

3.0 SURFACE PREPARATION

3.1 Surface Condition: The surface shall be free from

solvent, grease, dust, sediment, dirt, and sticky mastic. All existing rock roofs shall have loose, non-embedded gravel thoroughly removed and cleaned by vacuum, power broom vacuum methods. All extraneous equipment and equipment supports shall be removed from the deck. The existing roofing system shall be power washed as necessary and inspected by the manufacturer’s representative prior to the installation of any primer or new roofing materials.

3.2 All roof mounted equipment such as air conditioning

units, exhaust fans, etc. shall have sufficient clearance beneath them to allow for the proper application of the new roofing system. In the event of insufficient clearance, new curbs shall be constructed of the correct height and size to allow for the proper application of the new roofing system.

The new curbs shall be fitted with a 24 gauge galvanized sheet metal cover with a minimum of a 2 inch 60 degree perimeter flange to counter flash the foam.

3.3 All equipment or areas not intended to receive foam or

coating shall be masked and protected from overspray.

3.4 New 24-gauge galvanized interlocking sheet metal shall

be installed at all perimeter roof edges with a 1-inch rise foam stop and a 4-inch face with a ½-inch hem.

3.5 Install new 24-gauge galvanized sheet metal flashing

where the foam cannot be tapered and terminated properly at all air conditioning units, wall flashings, curbs, etc as necessary.

4.0 APPLICATION OF URETHANE FOAM

4.1 Environmental Conditions

4.1.1 Wind Velocity shall not exceed 12 miles per hour.

4.1.2 Application of spray foam shall not proceed

if ambient temperature is less than 40 deg. F, or if the substrate temperature is less than 50 deg.

F.

4.1.3 Spray foam is not to be applied over moist

substrates or where rain or inclement weather is imminent.

4.1.4 The construction of enclosures and wind

screens will be mandatory to prevent the release of over spray from damaging aircraft, equipment, vehicles, etc.

4.2 Spray Application

4.2.1 The polyurethane foam shall be applied in

minimum ½-inch passes to achieve a thickness of 1-inch.

4.2.2 Only as much area as can be brought to final

thickness should be attempted in a day. Phasing of the foam is strictly forbidden. (Phasing is foam application on one day and coming back the next day or thereafter and applying another layer of foam. This procedure often leads to the development of blisters.) If additional foam must be added after the 24 hour period, the existing foam must be primed and a minimum ½-inch of foam in a single pass can be applied.

4.2.3 The foam shall be free from bumps, pinholes

and ridges. The surface shall exhibit a smooth or orange peel surface texture. Popcorn or tree bark surfaces shall be deemed unacceptable.

4.2.4 The foam thickness shall be checked every

500 square feet prior to coating application.

4.2.5 The polyurethane foam shall be applied in

such a manner to provide for a positive slope to drain.

4.2.6 The Contractor shall maintain a laser level

on the jobsite at all times. The newly applied polyurethane foam shall be surveyed with a laser level to ensure proper slope to drain and absence of ponding.

5.0 APPLICATION OF FLUID APPLIED PROTECTIVE COATING

5.1 General: Sprayed polyurethane foam must be protected

from ultraviolet light in order to avoid degradation of the polymer. Coating also protects the foam from ponding water and adverse weather conditions.

Coatings must be specifically formulated for use over urethane foams.

5.2 Base Coat Application: Ultra-Tuff 2800 polyurea shall

be uniformly applied to the polyurethane foam in one or more uniform passes to achieve a total dry film thickness of 45 mils.

5.3 Aliphatic Top Coating: The base coat must be top

coated with aliphatic urethane coating within a maximum of 24 hours after the base coat membrane application. The Ultra-Shield 3000 aliphatic urethane surfacing shall be applied at the rate of 1½ gallons per square to achieve a total dry film thickness of 15 mils. Foot traffic should not be allowed on the newly installed aliphatic urethane surfacing until it has been allowed to cure for a minimum of 36 hours.

6.0 WARRANTY AND CERTIFICATION

The foam and coating manufacturer shall issue a fifteen year non-depreciating manufacturer's warranty.

7.0 INSPECTION

A representative from the coating manufacturer shall inspect the roof after completion to assure that the detail work at the protrusions, drains, parapets and edges has been completed in conformance with good practice. The inspector shall also check the thickness of the coating with an optical comparator.

7.0 CLEAN UP

Upon completion of all work covered in this specification, the contractor shall remove all equipment, material and debris, leaving the area in an undamaged and acceptable condition.

END OF SECTION

SECTION 07536

SBS MODIFIED BITUMEN ROOFING

I PART 1 GENERAL

I.1 SUMMARY OF WORK

A. Contractor to supply the necessary labor, materials and equipment to provide a Class B, “Cool Roof” roofing system at the roof area as specified herein.

Work shall include, but is not limited to, the following:

1. Remove and dispose of existing roofing system.

Repair approximately 200 S.F. of damaged wood deck as directed by COR. Actual quantities may vary and payment shall be made for the actual square feet of repaired deck, based on square foot costs submitted in the bid, adjusted as per Section 01016.

2. Install a new 2-ply SBS modified bitumen roof system with mineral surfaced cap sheet, torch applied, over 1/2 inch dens-deck board (primed with asphalt primer), adhesive fastened over 1- 1/2 inch polyisocyanurate, mechanically fastened over the existing wood roof deck. New roofing membrane shall then be coated with a 2 part acrylic coating (32 Mil. DFT min.) conforming to “Cool Roof” program. 20 year NDL warranty shall cover complete assembly, including insulation, insulation adherent, and roofing. Coating materials shall have 7 year minimum warranty.

4. Install SBS modified base flashing systems.

Install new vent flues, vent flashings and type “B” vent caps. Vent caps shall be installed at height required by 2007 CMC. Contractor shall modify/install vents, ducts and equipment curbs to maintain a minimum 8" curb height above finished roof surface. Install tapered insulation crickets at all roof curbs.

5. Contractor shall modify or install all utilities and ducting as required to perform work described in this section and on project drawings.

I.2 PRODUCTS INSTALLED BUT NOT FURNISHED UNDER THIS SECTION

A. Section 06110 – Carpentry.

B. Section 07620 - Sheet Metal Flashing and Trim.

I.3 RELATED SECTIONS

A. Section 06110 – Carpentry.

B. Section 07565 - Preparation for Re-Roofing.

C. Section 07620 - Sheet Metal Flashing and Trim: New reglet and flashing.

I.4 REFERENCES

A. ASTM C165 - Test Method for Measuring Compressive

Properties of Thermal Insulations.

B. ASTM C177 - Test Method for Steady-State Thermal

Transmission Properties by Means of the Guarded Hot Plate.

C. ASTM C203 - Test Methods for Breaking Load and

Flexural Properties of Block-Type Thermal Insulation.

D. ASTM D1622 – Density, Overall.

E. ASTM D41 - Asphalt Primer.

F. ASTM D4586 Type 1 – SBS Asphalt Roof Cement

(Asbestos Free).

G. ASTM D5147-91 - Testing Modified Bituminous Sheet

Material.

H. FM (Factory Mutual) - Roof Assembly Classifications.

I. NRCA (National Roofing Contractors Association) -

Roofing and Waterproofing Manual.

J. UL (Underwriters Laboratories, Inc.) - Fire Hazard

Classifications.

K. California Building Code, 2007 Edition.

I.5 SUBMITTALS

A. Submit product data for all materials used in the work for this project under provisions of Section 01015 and 01300.

B. Shop Drawings: Indicate setting plan for densdeck board and polyisocyanurate insulation, mechanical fastener type and layout, joint and termination detail conditions, conditions of interface with vents and other materials, curb modification details, flashing details and deck repair.

C. Product Data: Provide data indicating membrane and bitumen materials, base flashing materials, walk pads, polyisocyanurate insulation, protective covering and decking. Submit one 6" x 6" sample of roof SBS cap sheet, SBS interply, polyisocyanurate insulation, densdeck and SBS base flashing materials to Engineer. Submit one (1) of each type of mechanical fastener to Engineer.

D. Manufacturer's Installation Instructions: Install roofing materials in accordance with manufacturer’s instructions. See item III.6.E.2 below.

E. Manufacturer's Certificate: Certify that Products meet or exceed all ASTM, UL, FM and government requirements specified in Items I.4 and I.8.

F. Manufacturer's Field Reports: Submit under provisions of Section 01300. Indicate procedures to be followed.

G. Manufacturer's Warranty: Submit copy of proposed warranty in accordance with Paragraph I.13.

I.6 QUALITY ASSURANCE

A. Maintain copies of each document on site, in accordance with Section 01700.

B. Perform Work in accordance with NRCA Roofing and

Waterproofing Manual, SMACNA Sheet Metal Fabrication Manual, manufacturer's instructions, the drawings and specifications contained herein. Where the cited references contain more than one detail for a specific purpose, the most stringent condition shall govern.

C. Roof Coating Manufacturer’s representative and ECI shall jointly inspect the finished coating system to resolve any deficiency issues prior to project close out.

I.7 QUALIFICATIONS

A. Contractor/Applicator: Company specializing in performing the work of this section with minimum five years documented experience and two years documented experience with specified materials.

Contractor/Applicator shall provide a certificate issued by the roofing system manufacturer stating that the contractor/applicator has successfully installed a minimum of 500 squares of the proposed manufacturer's system and that the same 500 squares are currently under warranty issued by the roofing system manufacturer. Certification shall be presented with the contractor’s bid package. Failure to provide this certification at the time of the bid opening may be grounds for bid rejection.

1. Manufacturer shall meet with designated COR/ECI representatives prior to the start of the job to inspect the site and clarify any questions that might arise. Provide a work-in-progress inspection at beginning of work, 50%, and at completion of the work. Promptly conduct a final inspection, to certify that materials installed comply in all respects with the requirements of this specification; and were installed in strict accordance with manufacturer’s current requirements for the specified system.

I.8 REGULATORY REQUIREMENTS

A. Manufacturer shall submit proof of the following tests and agency requirements:

1. UL: Class B Fire Hazard Classification.

Material shall pass this test without the use of a mineral surface covering.

2. FM: Roof Insulation Assembly Classification, wind uplift requirement of I90, in accordance with FM Construction Bulletin 1-28.

I.9 PRE-INSTALLATION CONFERENCE

A. Convene one week prior to commencing work of this section.

B. Review requirements for preparation and installation procedures, coordinating and scheduling required with related work and conditions which could possibly interfere with successful performance of the work.

C. Require Manufacturer's Technical Representative to participate in the conference.

I.10 DELIVERY, STORAGE, AND HANDLING

A. Deliver, store, protect and handle products in accordance with provisions of Section 01600.

B. Roofing material shall be delivered to job-site in new, dry, manufacturers original unopened containers with seals and labels intact, clearly showing catalog number, product description approved inspection agency label, where and by whom manufactured and in quantities sufficient to assure continuous work.

C. Store rolled goods on end on pallet supports. Do not double stack membrane. Maintain aisle space between stacks to facilitate fire suppression.

Discard any flattened roll goods.

D. Do not overload structure with building materials.

Do not store materials on finished roof membrane.

E. Protect insulation from direct exposure to sunlight and moisture.

F. Assure that materials are kept clean, and away from excessive heat, cold and moisture; do not remove labels or tear off protective covering until ready for application and inspected by ECI representative;

store in an enclosed area where temperature is above 50 degrees and below 90 degrees Fahrenheit, securely tied with rope.

Material shall not be stored directly on the ground or any improved surface.

I.11 ENVIRONMENTAL REQUIREMENTS

A. Do not apply roofing membrane during unsuitable weather when ambient temperature is below 50 degrees F.

B. Maintain roofing felts above

40 degrees F. for 24 hours prior to application.

C. Do not apply roofing membrane to damp or frozen deck surface or when precipitation is present (rain, mist, dew, frost and or snow).

D. Do not expose materials vulnerable to water or sun damage in quantities greater than can be weatherproofed the same day.

I.12 COORDINATION

A. Coordinate the work of this section with installation of associated counter flashings installed by other sections as the work proceeds.

B. Work shall not begin until other trade work required ahead of membrane application is completed.

I.13 WARRANTY

A. Provide three year applicators performance warranty, which shall cover workmanship and materials and repair or replacement of same at no cost to the Government. Blistering and buckling shall be covered by this warranty.

B. Provide 20 year manufacturers Non-prorated, No

Dollar Limit (NDL), No Penal Sum (NPS) warranty.

Warranty shall cover leaks due to defective material and poor workmanship, and damage to roofing system resulting from failure of roof membrane system to provide a water tight system.

C. Warranty shall be submitted under provisions of

Section 01700.

I.14 SAFETY REQUIREMENTS

A. Contractor shall comply with all building and safety codes and shall report any non compliance of these specifications or manufactured installation procedures to roof manufacturer's representative prior to beginning work.

B. Safety standards set forth by the Occupational

Safety and Health Administration (OSHA) shall be maintained and followed by the Contractor, Sub Contractor(s) and work crews at all times.

C. Contractor shall comply with the California Fire

Code, 2007 Edition. There shall be at least four fire extinguishers of a minimum 20 BC classification, located within the work area.

II PART 2 PRODUCTS

II.1 MEMBRANE MATERIAL

A. Manufacturers – Dual reinforced (polyester and fiberglass) membrane materials installed (Torched) over Dens-Deck board over insulation:

1. MB Technology -I2T-FGFT160CWH

2. Other approved system manufacturers are: Ecology

Roof Systems and Garland. Alternate systems must be approved by the Military Department. The assembly (base and cap) shall weigh a minimum weight of 210 lbs. / sq. and a minimum thickness of 288 mils.

B. Roofing Membrane System: SBS interply, SBS mineral surface cap sheet, edge and base flashings shall be produced by the same manufacturer. All components shall be SBS Modified meeting the following characteristics:

1. SBS Torch Interply Sheet: M.B. Technology

FT160CSA.

a. Thickness: 140 mils min. ± 10%

b. Average Weight: 100 lbs/sq min.

c. Reinforcement: Dual Reinforced.

2. SBS Mineral Surfaced Cap & Flashing Sheet: M.B.

Technology FGFT160CWH.

a. Thickness: 170 mils min. ± 10%

b. Reinforcement: Dual Reinforced.

c. Average Weight: 110 lbs/sq min.

d. Top Surface: Mineral Granules.

C. Roof Coating: Roofing Material Manufacturer’s recommended coating that offers 7 year minimum warranty.

1. Manufacturers: Complying with California “cool-roof” criteria. Materials shall be labeled and EPA/DOE Energy Star Product. Karnak or Approved Equal.

2. Primer: #220AF emulsion roof coating or approved equal conforming to ASTM D-1227 Type II, Class 1;

SS-R-1781 (except asbestos free) and MIL-R-3472A (except asbestos free).

3. Finish Coating: #501 elasto-brite co-polymer elastomeric emulsion exterior protective coating or approved equal.

a. Color: White

b. Solid by Weight: 59%

c. Solids by Volume: 50%

d. Hardness Shore A: 70

e. Elongation: 300%

f. Tensile Strength: 350 psi

g. Permeability: 1.5

II.2 BITUMINOUS MATERIALS

A. Asphalt Primer: ASTM D41.

B. Modified Asphalt Roof Cement: ASTM D4586 (Type I

Asbestos Free) - Elastomeric mastic. Acceptable manufacturers - Gibson Homan, Pro's Choice 1010 or approved equal.

II.3 INSULATION / DENS-DECK

A. Manufacturers:

1. Apache

2. Firestone

3. Manville

4. Georgia Pacific.

B. Polyisocyanurate Insulation – Uniform 1-1/2” thickness. Insulation is authorized as per following characteristics:

1. Insulation shall be ASTM D1622, ASTM D1621, ASTM

E84, ASTM E96, ASTM C209 and ASTM D2126.

a. Thickness 1.5 inch or tapered

b. Density 2.0 lb/cu ft

c. Size 24 x 48 inches min.

d. Compressive Strength 20 psi minimum per ASTM D1621

e. Flame Spread 25 or less

f. Smoke Developed 55 - 215

C. Dens-Deck

Gypsum board is authorized as per following characteristics:

1. Gypsum Board shall be ASTM E84 and ASTM E136.

a. Thickness 1/2 inch

b. Density 52.8 lb/cu ft

c. Size 48 x 96 inches min.

II.4 CANTS

Perlite Cant and Tapered Edge Strips: ASTM C 728-91, Asphalt impregnated perlite. Cants shall be preformed to 45 degree angle with a 4" vertical leg, and 4" horizontal leg, unless noted otherwise.

II.5 ROOF WALKPADS

Walkway Pads: Malarkey (recycled materials), 36" x 48" with 1/2" minimum thickness, compatible with mineral surfaced cap sheet (depending on roof system) of the same material identified in Paragraph II.2 of this section.

II.6 ACCESSORIES

A. Metal discs: Shall be flat discs or caps of zinc coated sheet metal not lighter than 28 gauge and not less than 1-3/8 inches in diameter. Discs shall be formed to prevent dishing. Bell or cup-shaped caps are not acceptable. Minimum withdraw resistance of nails or fasteners shall be as required to obtain a Factory Mutual I90 wind uplift rating.

B. Plumbing Vents and Penetration Flashing: Shall meet or exceed ASTM-B29, 4 lb. sheet lead.

C. Base Flashing Nails: Nails shall be of galvanized steel, except that hard copper nails shall be used with copper: aluminum or stainless steel nails shall be used with stainless steel. Nails and fasteners shall be flush driven through flat metal discs of not less than 1-3/8 inch diameter. Metal discs may be omitted when one piece composite nails or fasteners with heads not less than one inch diameter are used. Unless otherwise specified, minimum withdraw resistance of nails or approved fasteners shall be 40 pounds each in the specific decks, when driven.

D. Caulking Sealant: ASTM C-920, shall consist of a single component, high performance, elastomeric sealant. Acceptable manufacturers:

1. Flexible Seal by AC Products, Inc., Placentia, CA.

2. Sonolastic NP 1 by Sonneborn Building Products, Minneapolis, MN.

3. Other products must be approved in writing by the Project Inspector prior to application.

E. Parapet Wrap: W.R. Grace, Bituthene or equal as approved by roofing system manufacturer.

III PART 3 EXECUTION

III.1 EXAMINATION

A. Verify that surfaces and site conditions are ready to receive work.

B. Verify deck is supported and secured.

C. Verify deck is clean and smooth, flat, free of depressions, waves, or projections, properly sloped towards gutters and ready for installation of roof system. If depressions are discovered, it will be the responsibility of the Contractor to add roofing interplies, as required, to provide proper drainage.

D. Verify deck surfaces are dry and free of debris.

E. Confirm dry deck with moisture meter at 19% moisture maximum.

F. Verify adjacent concrete roof members do not vary more than 1/4 inch in height. Verify grout keys are filled flush.

G. Verify adjacent decks do not vary more than 1/4".

Add taper board to adjust variances and provide for smooth deck transition.

H. Verify roof openings, curbs, pipes, conduit, sleeves, ducts, vents and flues through roof deck are solidly set, modified as required and new cant strips, pressure treated wood nailers and reglets are in place.

I. Verify that wood deck has been repaired in accordance with Section 06110.

J. Verify that roof decking has been inspected in accordance with Section 07565.

III.2 WORKMANSHIP

A. All roofing work shall be accomplished with a foreman and laborers who are thoroughly skilled in the application of specified materials; with all workmanship done in such a manner as to fulfill the requirements of the drawings and specifications.

B. Any specific directions furnished by manufacturer, in writing, on company letterhead, and as published in the manufacturer's manual for built-up roofing systems, regarding the application of roofing materials shall be faithfully followed.

C. All deviations from the manufacturer's published instructions shall be secured in writing on company letterhead from the manufacturer's representative prior to beginning work.

D. The Contractor shall supervise installation of, and be responsible for, seeing that roof mechanical and electrical equipment, and other work is properly set and roof membrane is not damaged; make roof and flashing repairs as necessary; advise Government Inspector, General Contractor, and/or Contracting Officer's Representative in writing of all potential leaks as may be caused by other trades.

E. The Contractor shall maintain a competent foreman, English speaking, to continuously supervise the work, with authority to discard unsuitable materials and remove unsatisfactory workmen from the project.

III.3 ASPHALT HANDLING, HEATING AND APPLICATION

Cutting or alterations of primer and sealants will not be permitted.

III.4 PREPARATION FOR POLYISOCYANURATE INSULATION

APPLICATION

Verify wood deck is clean and ready to accept prior to fastening insulation.

III.5 INSULATION AND DENS-DECK APPLICATION

A. Lay insulation boards with edges in moderate contact without forcing. Cut board to fit neatly to perimeter blocking and around penetrations through roof.

B. Dens-deck shall be secured to insulation with spray foam adhesive (Insta-Stik).

C. Polyisocyanurate insulation in contact with wood decks shall be mechanically fastened with one layer of 1/2 inch dens-deck roofing board adhered over the insulation with foam adhesive (INSTA-STIK). Dens-deck and insulation shall have all joints staggered.

Foam adhesive, fasteners and fastening pattern shall be submitted for review and must meet FM I-90.

D. Do not apply more dens-deck and insulation than can be covered with membrane in same day.

III.6 SBS INTERPLY MEMBRANE

A. Install only as much roofing material as can be completed and covered in accordance with the requirements of this specification and the roofing manufacturer’s requirements in one (1) day.

B. Do not allow traffic, stacked roofing materials or any equipment on completed roofing surfaces without adequate protective walk pads or minimum 1/2 inch plywood.

C. Prior to applying any membrane, the Contractor and his Foreman shall review these specifications and the manufacturer's technical manual with the Manufacturer's Technical Representative to make certain that all aspects of the membrane system application are understood. Certify this requirement to the COR in writing.

D. Application of membrane system shall proceed in strict accordance with specifications, detailed drawings and manufacturer’s technical manual.

E. Smooth Surfaced Interply – Torch Application:

1. Torch weld SBS FT160CSA interply membrane to asphalt primed dens-deck roofing board in half width starter strips along the roof edge with subsequent course applied in full width rolls.

Torch weld allowing 3.5 inch side laps and 6 inch on end laps. End laps shall be staggered with a minimum spacing of 36 inches. Apply to produce a 1/8 inch to ¼ inch outflow of bitumen at all seams. Areas with less than 1/8 inch outflow will be checked with a trowel, heat applied between laps and properly sealed.

2. Turn sheet up a minimum of 2" above cants at all vertical surfaces.

3. Apply membrane smooth, free from air pockets, fish mouths, wrinkles, or tears. Ensure full bond of membrane to substrate.

4. Insure that all fish mouths are cut and objects causing separation between plies are removed.

Do not attempt to walk down fish mouths. Patch areas if the cut is made after the interply has set up.

5. All membranes shall be cut to conform to the nailer spacing. Nail the end lap across the width of the sheet, with the first nail spaced ¾” from the leading edge of the sheet, and the remaining nails spaced approximately 8.5” o.c.

The nails shall be staggered across the width of the nailer to reduce the risk of the sheet tearing along the nail line. Nails must have an integral 1” diameter cap. Where capped nails are not used, fasteners must be driven through caps having a 1” diameter.

F. SBS Reinforcing Strip Application (Base Flashings)

1. The SBS reinforcing strip shall be cut into manageable lengths prior to application. Lay the material out on the roof and allow it to relax and flatten.

2. Torch weld SBS 160 mil reinforcing strip to modified interply and primed vertical surfaces.

Reinforcing strip shall extend from 4 inches above the cant to 4 inches onto field membrane.

3. Course shall be laid with a minimum of 4" end lap.

4. Bitumen run out at side laps shall extend 1/8 inch to ¼ inch onto interply surface, beyond salvage edge.

G. Mineral Surfaced Cap Sheet Application Torch Applied

1. The mineral surfaced SBS cap sheet shall be cut into manageable lengths prior to application.

Lay the material out on the roof and allow it to totally relax and flatten

2. The mineral surfaced membrane shall be applied via torching. The first layer at edges shall be full width. To begin, first preheat the salvage edge of the previously laid membrane. When torching the roll itself, use a steady torching technique, keeping the torch moving to bring the entire surface to the proper temperature prior to bonding.

3. Allow laps to relax as long as possible before fusing. Side laps shall be interply heat fused prior to interply fusing of the end lap of the same sheet. Pressure shall be applied on the top of the lap to ensure solid contact. All laps shall be fused before leaving job for the day.

4. Bitumen run out at side laps shall extend 1/8" to 1/4" onto mineral surface, beyond salvage edge and covered with mineral granules as recommended by material manufacturer.

5. End laps of cap membrane shall be staggered a minimum of 36".

6. Extend mineral surfaced cap membrane a minimum of 4" above all cants. Fuse membrane to face of cant and underlying SBS reinforcement interply.

Apply torch to underside of cap membrane only and press into place.

7. Apply membrane smooth, free from air pockets, fish mouths, wrinkles, or tears. Ensure full bond of membrane to substrate.

8. Install two plies membrane and bitumen glaze coat for cut-off at end of day's operation.

Glaze cut off plies exposed at end of working day. Remove cut-off before resuming roofing.

9. Insure that all fish mouths are cut and objects causing separation between plies are removed.

Do not attempt to walk down fish mouths. Patch areas if the cut is made after the interply mopping has set up.

10. Seal edges and ends permanently waterproof.

H. If moisture penetrates roofing membrane at any location, all wet material will be replaced by contractor at no expense to the Government.

I. All Finished work of others which is damaged in the execution of work under this section shall be replaced or restored to the original condition by Contractor at the Contractor's expense.

J. Install walk pads after roof surface is coated.

Coat walk pads, set joints 6" maximum and 2" minimum distance apart to allow proper roof drainage.

Install walk pads at locations as detailed in project drawings.

III.7 FLASHINGS AND ACCESSORIES

A. Install required cant strips before applying base sheet, field membrane and flashings.

B. Coordinate installation of roof drains and related flashings with roofing and deck repair operations.

C. Base flashings shall be composed of 1 layer SBS mineral surfaced cap sheet over 1 layer 160 mil SBS interply membrane reinforcing strip as shown on

D. Install base flashings at all roof wall junctures, projections and curb per manufacturers requirements.

Special care shall be taken to generously preheat the surface to which the flashing is being applied prior to heating the bottom of flashing membranes.

E. When flashing is installed over a porous surface, apply a coating of asphalt primer at a minimum rate of 1/2 to 3/4 gal. per 100 S.F. of area and allow to completely dry.

F. All metal flanges to be stripped in with 160 Mil.

SBS interply sheet and mineral surfaced cap membrane shall be coated (both sides) with asphalt primer and allowed to dry thoroughly, 24 hours minimum.

G. Mineral surfaced flashing membrane shall be unrolled and cut to desired width and maximum length of 10 feet.

H. The flashing must not remain open at the end of the work day.

I. The contractor and construction inspector shall thoroughly inspect the completed flashing system at the end of each day's work.

J. Mechanically fasten top edge of base flashings with approved fasteners per roofing manufacturer's specifications and project drawing details.

K. The Contractor shall insure that a uniform slope is provided at all roof areas so that water will drain and will not pond at building perimeter. If, upon flood testing, water does pond at any location on this roof area, the roofing shall be removed, re-sloped and repaired at the Contractor's expense.

L. Install 4 lb. lead sleeves on all vent pipe/conduit roof penetrations. Flanges shall extend a minimum of 6 inches in all directions on top of the new interply membrane, and be stripped into the roof membrane with SBS base flashings. The top of the sleeve shall be cut even with the top of the vent and shall have preformed sleeve cap installed.

Pipes and conduit shall have a draw-band seal and rain diverter utilized if the vent pipe extension is too high. Installation procedures shall comply with NRCA, or SMACNA standard details and specifications.

M. Install roofing system manufacturer’s approved parapet wrap material over wood nailer and top of base flashings. Wrap shall extend 1-1/2” minimum below wood/concrete juncture.

III.8 Coating Application

A. Surface must be clean and dry prior to application of coating. Sweep and wash area to remove all dust, dirt and residue. Coatings Manufacturer’s representative shall be present at time of application.

B. The first coat shall be back rolled. Each coat shall be slightly tinted off color from the subsequent coats to allow visual inspection for holidays.

III.9 FIELD QUALITY CONTROL

A. Field inspection will be performed under provisions of Section 01400, and manufacturers requirements.

B. All mineral surfaced cap membrane shall be carefully inspected for construction damage and imperfect heat fusion. Any holes or tears shall be patched with the appropriate mineral surfaced cap membrane. The patch must extend a minimum of 4" in all directions from the edges of the tear or puncture.

C. All mineral cap membrane edges exposed at waste stacks, vent stacks and other similar assemblies shall be caulked with a smooth continuous bead of approved sealant.

D. Where free water is discovered between the plies, the affected area shall be removed and rebuilt in dry conditions. Where insulation is found to be wet, the insulation, and 12 inch perimeter, shall be removed and new built-up roofing and insulation shall be installed at no additional cost to the Government.

E. Deficiencies identified during final inspection shall be corrected within five (5) working days, and will be re-inspected at Final Inspection.

F. All heat weld assembly installations shall be inspected prior to leaving the site to assure that no smoldering or combustible materials are ignited through the night.

G. Require site attendance of roofing and insulation material manufacturers as required by progress scheduling during installation of the Work.

Notification to all concerned parties must be received not less than 48 hours prior to required attendance.

H. No coating shall be applied when roof surface has any moisture occurring in area of coating installation.

I. No coating shall be applied when temperatures are under 55 degrees Fahrenheit.

III.10 CLEANING

A. Remove bituminous markings from finished surfaces.

B. Repair, replace and repaint any items or finishes defaced or disfigured by work under this contract.

C. In areas where finished surfaces are soiled by bitumen or any other source of soiling caused by work of this section, consult bitumen manufacturer for cleaning advice and conform to their documented instructions.

III.11 DEBRIS DISPOSAL

A. Contractor shall make his own arrangements for disposal of debris or other waste material away from job site at his own expense, and assume total responsibility for proper disposal of all materials in accordance with local, State and Federal regulations.

B. Debris from project will be removed daily, and at no time allowed to block any thoroughfare. Premises shall be cleaned to satisfaction of the COR.

III.12 PROTECTION OF FINISHED WORK

Where traffic must continue over finished roof membrane, protect surfaces with temporary walk pads or 1/2" plywood sheeting per manufacturer's requirements.

SECTION 10800

TOILET AND SHOWER ACCESSORIES

1 GENERAL

1.1 SUMMARY

A Section includes toilet and shower accessories to be installed on new partitions at locations where toilet and shower partitions are replaced, as shown on the

1.2 REFERENCES

A ASTM A123 - Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

B ASTM A269 - Seamless and Welded Austenitic Stainless

Steel Tubing for General Service.

C ASTM A653/A653M - Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.

D ASTM A666 - Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar.

E ASTM B456 - Electrodeposited Coatings of Copper Plus Nickel Plus Chromium and Nickel Plus Chromium.

1.3 SUBMITTALS

A Product Data: Submit data on accessories describing size, finish, details of function, attachment methods.

B Samples: Submit two six inch samples of channel, illustrating color and finish.

C Manufacturer's Installation Instructions: Submit special procedures, conditions requiring special attention, and mounting instructions.

COORDINATION

D Coordinate the Work with the placement of internal wall reinforcement and reinforcement of toilet partitions to receive anchor attachments.

2 PRODUCTS

2.1 TOILET AND SHOWER ACCESSORIES

A Manufacturers:

1. Bobrick Washroom Equipment, Inc.

2. American Specialties, Inc.

3. Bradley Corp.

4. Substitutions: Section 01600 - Product

Requirements.

2.2 COMPONENTS

A Accessories - General: Shop assembled, free of dents and scratches and packaged complete with anchors and fittings, steel anchor plates, adapters, and anchor components for installation.

1. Grind welded joints smooth.

2. Fabricate units made of metal sheet of seamless sheets, with flat surfaces.

B Stainless Steel Sheet: ASTM A666 , Type 304.

C Stainless Steel Tubing: ASTM A269, stainless steel.

D Fasteners, Screws, and Bolts: Hot dip galvanized, tamper-proof.

E Expansion Shields: Fiber, lead, or rubber as recommended by accessory manufacturer for component and substrate.

2.3 TOILET ROOM ACCESSORIES

A Toilet Seat Cover / Toilet Paper Dispenser: Double roll, recessed partition mounted type, stainless steel.

Location: in partitions servicing multi stalls.

1. Product: B-347 manufactured by Bobrick Washroom

Equipment, Inc. or equal.

B Multi-Roll Toilet Paper Dispenser: Surface mounted, Multi-Roll type, stainless steel. Location: single stall application.

1. Product: B-2888 manufactured by Bobrick Washroom

C Seat Cover Dispenser: Stainless steel, surface-mounted and partition mounting, hinged front panel. Location:

Unixex latrine – Room 37.

1. Minimum capacity: 250 seat cover.

2. Product: Model No. B-221 manufactured by Bobrick

Washroom Equipment, Inc. or equal.

D Matrix Series Surface-Mounted Waste Receptacle:

Durable, impact-resistant grey polymer with high-gloss of exposed surfaces. Locations: All latrines.

1. Capacity: 13 gallons.

2. Product: Model No. B-5277 manufactured by Bobrick

Washroom Equipment, Inc.

I Grab Bars: Stainless steel, 1-1/4 inch outside diameter, minimum 18 gage satin finish type 304 stainless steel tubing, non-slip grasping surface finish; 1-1/2 inch clearance between wall and inside of grab bar. Location: Unixex latrine – Room 37.

1. Length and configuration: As indicated on drawings and per chapter 11B, Title 24, California Building Code, 2007 edition.

2. Product: manufactured by Bobrick Washroom

2.4 SHOWER AND ACCESSORIES

A Shower Curtain Rod: 18 gauge satin finished stainless steel tube, 1-1/4 inch outside diameter.

1. Product: Model No. B-6047 manufactured by

Bobrick Washroom Equipment, Inc. or equal.

B Shower Curtain: Opaque vinyl .008” thick, matte finish, nickel-plated brass grommets along top, one every 6”, bottom and sides are hemmed, 70” wide x 72” high.

1. Product: Model No.204-3 manufactured by Bobrick

C Stainless Steel Shower Curtain Hooks: 18-8 s, type- 304, 0.09” diameter stainless steel.

1. Product: Model No. 204-1 manufactured by Bobrick

3EXECUTION

3.1 EXAMINATION

A Verify exact location of accessories for installation.

B Verify that field measurements are as indicated on product data and project drawings.

3.2 PREPARATION

A Deliver inserts and rough-in frames to site for timely installation.

B Provide templates and rough-in measurements as required.

3.3 INSTALLATION

A Install plumb and level, securely and rigidly anchored to substrate.

1. Toilet Partition Accessory Mounting Heights:

a) Grab bars: 33 inches A.F.F

b) Toilet Paper Dispenser: 28 inches A.F.F.

c) Seat Cover Dispenser: 40inches Maximum A.F.F.

SECTION 15900

MECHANICAL CONTROLS

I. PART 1 GENERAL.

A. Scope. The scope of the mechanical controls work for this project encompasses replacement of the existing cooling, heating, ventilation system controls with new DDC controls.

Control intent shall be similar to that of the existing control system as indicated on the existing mechanical reference drawing R4. The controls work shall include additional design and installation work as needed in order to have a completely operational cooling, heating and ventilation system in the Fresno California National Guard Office Building.

B. Furnish and install all labor, materials, equipment, actuation devices, apparatus, software, services, permits and supervision and all permanent and temporary facilities necessary to provide complete and proper working Direct Digital Control system as described in the specifications and the As-Built reference drawings, R1,R2,R3 and R4.

Drawings are diagrammatic only. Provide any equipment and labor not specifically referred to herein or on the drawings that are required to meet the functional intent.

This project shall include but not be limited to the following requirements:

1. Remove and dispose of existing control(s) and apparatus back to most economical and reasonable points of connection. Utilize existing control panel and conduit where possible.

2. The new control system shall be capable of providing space conditioning as the load increases or decreases according to the demand.

3. The system shall meet all Title 24 requirements.

4. The new control system shall be equal to or exceed the existing control system that is shown on the existing mechanical drawings.

SECTION 15000

MECHANICAL

5. Shall provide conditioned air according to the ASHRAE building standards for Offices.

Provide new dampers, sensors and fire dampers as needed for a complete operating system.

8. Upon completion of the work listed above, all existing ducting shall be cleaned and checked for duct leaks according to NADCA’s standards for air duct cleaning and NAIMA’s recommended practice for ducts containing fiberglass lining or constructed of fiberglass duct board. All duct leaks shall be repaired as needed.

9. New electrical panels, breakers, disconnects and controls shall have the same electrical characteristics as the existing electrical equipment.

B. Contractor shall perform a pre-bid job walk at the site to fully review all aspects of the existing heating system, including existing ducting, controls, electrical panels, available power supply and furnace equipment.

C. Mechanical work shall include furnishing all labor, materials, equipment and services required for providing a complete heating system.

D. Exact routing of pipes, ducts, etc., and location of equipment is to be governed by structural conditions and obstructions. Equipment requiring maintenance and inspection is to be readily accessible.

E. Roof penetrations shall be flashed and sealed watertight .

II PART 2 SUBMITTALS

A. Product data. A list of materials and equipment to be installed, manufacturer's descriptive data, and such other data as may be requested by the Engineer shall be submitted for approval.

1. Manufacturer's descriptive data shall include complete description, performance data and installation instructions for the materials and equipment specified herein. Control and wiring diagrams and component layout shall be included where applicable.

2. Manufacturer's descriptive data shall be submitted for the following:

SENSORS

CONTROLS DIAGRAM

ENCLOSURES

EQUIPMENT DIAGRAMMATIC LAYOUT

THERMOSTATS

CONTROL PANEL (if needed)

CONTROLS

3. Provide control system working drawings.

III. PART 3 CLOSEOUT SUBMITTALS

A. Comply with the Provision…