18R0018_REVISED_SOW_-_24_AUG.pdf

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STATEMENT OF WORK

HEATING, VENTILATION, AND AIR

CONDITIONING INSULATION

Whiteman Air Force Base, Missouri

16 August 2018

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Table of Contents Section Description Page

TABLE OF CONTENTS 2

1 SECTION 1 GENERAL INFORMATION 3

1.1. Scope of Work 3

2 SECTION 2 General Requirements 4

2.1. General Requirements. 4

2.2. Safety Requirements. 4

2.3. Base Regulations 5

SECTION 3 Solid, Construction, Demolition and Deconstruction Waste Requirements.

4 SECTION 4 Specific Airfield Requirements 6

4.1. Requirements 6

5 SECTION 5 MATERIAL REGULATIONS 7

5.1 Requirements 7

5.2. Fiberglass Insulation 7

5.3. Pipe Fittings 7

5.4. Logging Adhesive 7

5.5. Vapor-Barrier Materials 7

5.6. Caulk 7

5.7. Corner Angles 8

5.8. Tape 8

5.9. Pipe Labeling 8

6 SECTION 6 Execution 8

6.1. Preparation 8

6.2. Installation of Insulation Systems 8

6.3. All HVAC Piping 8

6.4. Refrigerant Suction 9

6.5. Steam and Condensate Piping 9

6.6. Hot Water Heating Converter 9

6.7. Application 9

6.7.1. Type T-1 9

6.7.2. Type T-2 10

6.7.3. Type T-3 10

6.7.4. Type T-4 11

6.7.5. Type T-5 12

6.7.6. Type T-7 12

6.7.7. Type T-9 12

6.7.8. Cover piping system 13

6.7.9. Pipe Insulation Schedule 13

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SECTION 1 – GENERAL INFORMATION

1.1. Scope of Work: The Contractor shall provide all personnel, equipment, vehicles, rental equipment, tools, materials, supervision, and other items and services necessary to perform “HVAC Pipe Insulation” as defined in this Statement of Work (SOW) and as identified in each individual Delivery Order, at Whiteman AFB. The Contractor shall provide all insulation and like materials in their bid price along with submittals based upon the work load estimates. The Contractor shall perform to the standards in this contract. This contract consists of providing and installing of insulation for heating, ventilation, and air conditioning pipes and insulation of existing duct work, to include demolition and disposal of same to install new. The work is located on Whiteman Air Force Base, Missouri. Whiteman AFB is located near Knob Noster, Missouri, approximately 60 miles southeast of Kansas City, Missouri. This work includes providing noncombustible thermal-insulation system materials, as defined by the National Fire Protection Association (NFPA) 220 – Standard on Types of Building Construction. Provide adhesives, coatings, sealants, facings, jackets, and thermal-insulation materials, except cellular elastomers, with a flame-spread classification (FSC) of 25 or less, and a smoke-developed classification (SDC) of 50 or less. Determine these maximum values in accordance with American Society for Testing Materials (ASTM) E84 or NFPA 255 whichever is less. Work also includes exterior duct insulation that will meet ASTM C553 Standard Specifications for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial applications. Meet ASTM C612 Standard Specification for mineral Fiber Block and Board Thermal Insulation. ASTM Specification duct board will be covered with ASTM-D-166-80, Part 15, specifications for woven glass fabrics and cover to waterproof with a minimum of Childers Chil-Perm WB 35 (or equal) coating meeting NFPA Standard 990-A and 90-B 25/50 requirements.

SECTION 2

General Requirements

2.1. General requirements:

1. Work Coordination: The Contractor shall be specifically responsible for the coordination and proper relation of work to the site and to the work of all trades. It is recommended that the Offeror visit the site and thoroughly familiarize themselves with all the details of the work and working conditions prior to submitting a proposal. The successful Contractor shall verify all dimensions in the field and advise the Contracting Officer of any discrepancy before performing any work.

2. Utilities: All reasonable required amounts of water and electricity will be made available to the

Contractor by the Government from Government-owned and operated water and electrical systems without cost to the Contractor. All temporary lines will be furnished, installed, connected and maintained by the Contractor in a workmanlike manner satisfactory to the Contracting Officer or his/her representative and shall be removed by the Contractor at his/her expense prior to final acceptance of the construction.

3. Government Furnished Materials And Tools: No materials or tools will be furnished by the government for this project. CONTRACTOR WILL NOT BE PROVIDED A LOCATION

ON BASE FOR A JOB TRAILER, LAY DOWN/STOCK PILE AREA OR EXTENDED

EQUIPMENT STORAGE.

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4. Warning Signs: The Contractor shall provide and display "Work in Progress" warning signs adjacent to all areas where persons may come into the work area. Signs shall also be posted around all danger areas in accordance with the most current edition of the Manual on Uniform Traffic Control Devices.

5. Disposal of debris: The areas affected by this contract shall be kept in a reasonably tidy condition throughout the construction period. Excess materials and debris resulting from work covered by the contract will be disposed of in a manner approved by the Contracting Officer or his/her representative at no additional cost to the Government. Cleanup shall be accomplished daily. "Notice: The disposal of demolition waste is regulated by the Department of Natural Resources under chapter 260, RSMO. Such waste, in types and quantities established by the department, shall be taken to a demolition landfill or a sanitary landfill for disposal."

6. Standard Product: Reference to particular brand name or manufacturer's catalog number in the specifications or on the drawings is not to be construed as a recommendation for a certain manufacturer's product over others. These references are made solely as a guide to type and quality of products. Any approved or "equal" product is implied in all cases. All new components shall be compatible with the existing equipment and structures and shall be at least as good as those specified.

7. Temporary Toilets: Workmen will not be permitted to use Government toilet facilities in existing buildings. The Contractor will be responsible for providing temporary toilet facilities.

Locations and type of temporary toilets shall be approved by the Contracting Officer or his/her representative.

2.2. Safety Requirements:

1. General Safety: The Contractor is responsible for the erection and maintenance of all safety barricades, shoring, fences, and other devices necessary for safe conditions to protect the work, equipment, workmen, public and others IAW OSHA Law. The Contractor shall erect or construct such devices as conditions may require and shall maintain them to provide safe conditions through the construction period and conform to OSHA Regulations and the EM 385-1-1 Safety and Health Requirements.

2. Fire Protection Requirements: The Contractor shall comply with Air Force and local fire regulations and NFPA requirements. The Contractor shall provide fire extinguishers rated and approved by the National Fire Protection Association, of sufficient size, type, and quantity to cope with all known hazards, at the construction site during the execution of this contract.

3. Ground Fault Circuit: Ground fault circuit interrupters are required on all work on this contract when using extension cords.

2.3. Base Regulations:

1. All activities of the Contractor and his/her employees, and of all subcontractors and their employees while on the base, shall be conducted in strict accordance with all base regulations, including those of the fire marshal.

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2. Work Hours: Normal work hours at Whiteman AFB are 7:00 a.m. through 4:30 p.m., Monday through Friday. Work to be accomplished at other than the above hours shall require approval of the Contracting Officer. The following listed are holidays observed by the Government. Any work accomplished on these days shall require prior approval by the Contracting Officer.

New Year's Day Martin Luther King, Jr's Birthday Presidents Day Memorial Day Independence Day Labor Day Columbus Day Veteran’s Day Thanksgiving Day Christmas Day

3. Entry to Whiteman Air Force Base: Whiteman AFB is a closed base pursuant to Sec. 21, Internal Security Act of 1950, 50 U.S.C. 797 and, as such, only those persons granted permission may enter. Contractor shall supply employee full name, as it appears on their driver’s license, date of birth, Social Security number, driver’s license number and state of issuance, verify that they are U.S. citizen for the creator of an Entry Authorization Letter. This information is solely used for the issuance of a Contractor ID. Contractor ID’s will be issued at the Visitor Center.

4. Identification of Mechanized Equipment: All Contractor's machinery, motor vehicles, and mechanized equipment shall have acceptable identification showing the owner's name and identifying number. This identification shall be posted in a conspicuous location on each piece of equipment as may be required by the Contracting Officer. This requirement applies if the Contractor is performing work in PL1, 2, or 3 Areas.

SECTION 3

SOLID, CONSTRUCTION, DEMOLITION AND DECONSTRUCTION WASTE

REQUIREMENTS:

3.1. Requirements:

a. The Contractor shall comply with, but not limited to: (Executive Order 13423, Strengthening Federal Environmental, Energy, and Transportation Management, dated 26 Jan 07; Executive Order 13514, Federal Leadership in Environmental, Energy, and Economic Performance, dated 7 Oct 09; Office of the Under Secretary of Defense Memo, DoD Integrated (Non-Hazardous) Solid Waste Management Policy, dated 1 Feb 08, and AFI 32-7042, Waste Management.

b. The Contractor shall generate the least amount of solid waste as possible, maximize pollution prevention processes, and maximize landfill diversion efforts through source reduction, reuse of materials, and recycling.

c. The Contractor shall segregate all divertible, reusable, and recyclable materials, but not limited to: wood; green waste; concrete; asphalt; brick; cardboard; metals; paper, plastics, glass, serviceable items, salvageable items, and clean soils so that these items can be diverted off base.

d. The Contractor shall turn in by appointment; all Government purchased serviceable or salvageable items, except for locks, latches, and cylinders to the 509th Logistics Readiness Squadron, Base Supply, and Equipment Management.

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e. The Contractor shall turn in all other serviceable or salvageable items, except for locks, latches, and cylinders to the Defense Logistics Agency Disposition Service (DLADS). The Contractor shall segregate all scrap metal into ferrous and nonferrous metals and cut, dismantle, palletize, test, or prepare documentation as required for acceptance by the DLADS.

f. The Contractor shall only dispose of acceptable municipal solid waste at certified landfills.

g. The Contractor shall not dispose of any hazardous waste, designated waste, radioactive waste, serviceable items, salvageable items, green waste, concrete, or asphalt in municipal solid waste landfills. These shall be properly disposed, diverted, recycled, or reused.

h. The Contractor shall provide contractual proof, upon request of the landfill contractor operator, that the Contractor is authorized to use the municipal solid waste landfill. This allows the government to maintain compliance with landfill record keeping requirements.

i. The Contractor shall provide, for every load destined for the municipal solid waste landfill, a signed “Landfill Access Ticket”. The “Landfill Access Ticket” verifies that the solid waste was generated by a valid 509 BW project and meets the landfill disposal requirements. A Contractor’s signed “Landfill Access Ticket” shall include, but not limited to, the following information: the contract number; prime contractor’s name and phone number; subcontractor’s name and phone number (as applicable); source where the material was generated: project name and facility name or number. The “Landfill Access Ticket” shall be signed by the Government Construction Representative, include name and phone number, or if authorized by the Government, designating the Contractor’s representative the authority to sign the “Landfill Access Ticket”.

j. The Contractor shall submit monthly to the 509th CES/CEAN, Solid Waste Manager, and (660-687-3272), the quantity, and disposal cost of: 1) Municipal Solid Waste; and 2) Construction & Demolition debris disposed on or off-base.

k. The Contractor shall submit monthly to the 509th CES/CEAN, Solid Waste Manager, (660- 687-3272), the quantity, and diversion cost of: 1) Municipal Solid Waste; and 2) Construction & Demolition debris diverted (used as daily cover, reused, or recycled) from disposal at the local permitted landfill. Municipal Solid Waste shall be itemized into the following diversion categories: compost, mulch, recycle, reuse, and donation.

SECTION 4

SPECIFIC AIRFIELD REQUIREMENTS

4.1. Requirements: The contractor is responsible for ensuring airfield Specific requirements are met prior to start of Construction and shall be escorted at all time in the flight line areas.

a. Provide all requested information needed to obtain an airfield area entry which is required prior to start of installation.

b. All vehicle drivers will require an airfield driver’s License.

c. POV access passes are required for each vehicle accessing the construction area.

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d. All contractors entering the flight line will require EAL authorization.

e. Contractor vehicles entering the flight lien area will be marked applicably with company’s identification on all doors.

SECTION 5

MATERIAL REGULATIONS

5.1. Referenced Codes and Standards: Follow these codes and standards unless otherwise noted.

International Plumbing Code (IPC) ASHRAE Standard 90.1, Energy Standard for Buildings except Low-Rise Residential Buildings Midwest Insulation Contractors Association (MICA) American Society for Testing and Materials (ASTM) U.S. Department of Defense (DOD) U.S. General Services Administration (GSA) National Fire Protection Association (NFPA) American National Standards Institute (ANSI) Illuminating Engineering Society of North America (IESNA)

5.2. Fiberglass Insulation:

1. Conform to ASTM C547. Ensure the apparent thermal conductivity does not exceed 0.54 BTU-inch per hour per square foot per degree F at 200 degrees F mean.

2. Fiber glass pipe insulation having an insulating efficiency not less than that of the specified thickness of mineral fiber pipe insulation may be provided in lieu of mineral fiber pipe insulation for aboveground piping.

5.3. Pipe Fittings: Provide molded pipe fitting insulation covering for use at temperatures up to and including 1200 degrees F.

5.4. Lagging Adhesive: Lagging is the material used for thermal insulation, especially around a cylindrical object. This may include the insulation as well as the cloth/material covering the insulation.

To resist mold and mildew, ensure lagging adhesive conforms to ASTM D5590 with 0 growth rating.

Provide nonflammable and fire-resistant lagging adhesives with a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84. Adhesive are MIL-A-3316, Class 1, pigmented white, unless otherwise noted, and suitable for bonding fibrous glass cloth to faced and un-faced fibrous glass insulation board; for bonding cotton brattice cloth to faced and un-faced fibrous glass insulation board; for sealing edges of and bonding glass tape to joints of fibrous glass board; for bonding lagging cloth to thermal insulation; or Class 2 for attaching fibrous glass insulation to metal surfaces. Apply lagging adhesives in strict accordance with the manufacturer’s recommendations for pipe and duct insulation.

5.5. Vapor-Barrier Materials Adhesives: Ensure adhesives conform to the requirements of ASTM C916, Type I, when attaching fibrous-glass insulation to metal surfaces or attaching insulation to itself, to metal, and to various other substrates.

5.6. Caulk: Provide elastomeric joint sealant in accordance with ASTM C920, Type S, Grade NS, Class 25, Use A.

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5.7. Corner Angles: Provide a nominal 0.016 inch thick aluminum 1 by 1 inch corner angle piping insulation with factory applied craft backing. Ensure aluminum conforms to ASTM B209M and ASTM B209, Alloy (3003, 3105, and 5005).

5.8. Tape: Provide a knitted elastic cloth glass lagging specifically suitable for continuous spiral wrapping of insulated pipe bends and fittings that produces a smooth, tight, wrinkle-free surface.

Conform to requirements of SAE AMS 3779, ASTM D579, and ASTM C921 for tape, weighing not less than 10 ounces per square yard.

5.9. Pipe Labeling: Pipe labeling will be done in accordance with the latest Uniform Plumbing Code (UPC) unless otherwise noted. Below is the table for minimum length of color field and size of letters:

Outside Diameter of Pipe or Covering (in)

Minimum Length of Color Field (in)

Minimum Size of Letters (in)

0.5 to 1.25 8 0.5

1.5 to 2 8 0.75

2.5 to 6 12 1.25 8 to 10 24 2.5

SECTION 6 EXECUTION

6.1. Preparation: Submit installation drawings for pipe insulation, conforming to the adhesive manufacturer’s written instructions for installation. Submit installation manual clearly stating the manufacturer’s instructions for insulation materials. Clean surfaces to remove oil and grease before insulation adhesives or mastics are applied. Provide solvent cleaning required to bring metal surfaces to such condition.

6.2. Installation of Insulation Systems: Apply materials in conformance with the recommendations of the manufacturer. Install smooth and continuous contours on exposed work. Smoothly and securely paste down cemented laps, flaps, bands, and tapes. Apply adhesives on a full-coverage basis. Install insulation lengths tightly butted against each other at joints. Where lengths are cut, provide smooth and square and without breakage of end surfaces. Where insulation terminates, nearly taper and effectively seal ends, or finish as specified. Direct longitudinal seams of exposed insulation away from normal view. Use insulation meeting maximum value conductance as tested at any point, do not use an average.

Meet or exceed the specified maximum conductance by adding additional insulation thickness.

6.3. All HVAC Piping: Install a (Mineral fiber with Vapor-Barrier Jacket Type T-1) insulation with a thickness of not less that (1 inch). Insulate above ground pipes, valve bodies, fittings, unions, flanges and miscellaneous surfaces.

1. All HVAC Piping: To include chilled water, hot water, steam, condensation and domestic water.

Install a Mineral Fiber with Vapor-Barrier Jacket Type T-1, with a thickness of 1 inch. Cover surfaces subject to condensation, and provide a vapor-barrier coating and a PVC protective jacket below 7’.

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2. All HVAC Piping: Weather-Exposed: Install a Mineral Fiber with Vapor-Barrier Jacket Type T- 1, with a thickness of not less that (1-1/2 inch). Provide .016 Smooth Aluminum jacketing & fittings over insulation.

3. Provide 0.375 inch mineral fiber insulation with ASJ Jacket, Type T-2, with a thickness of not less than (1 inch). Or install a cellular-elastomer insulation conforming to ASTMC534/C534M, with a water-vapor permeability not exceeding 0.1 grain per square foot per hour per inch mercury pressure-differential for 1 inch thickness. Or provide flexible cellular-elastomeric thermal insulation for cold water piping, Type T-3, with a thickness of (0.375 or 0.5 inch). Use expanded, closed-cell pipe insulation only aboveground, not for underground piping.

6.4. Refrigerant Suction Piping: Install a cellular-elastomer insulation, Type T-3, with a nominal thickness of 0.75 inch. Insulate surfaces, including valve, fittings, unions, and flanges.

6.5. Steam and Condensate Piping, 350 Psig: Install a calcium silicate insulation with ASJ Jacket, Type T-5. Ensure a thickness of not less than (1 inch), based on an 80 degree F ambient temperature in still air with an insulation “K” factor of 0.37 at 200 degrees F mean temperature.

6.6. Hot Water Heating Converter: Install a calcium silicate insulation with glass cloth jacket, Type T-7, with a thickness of 1.5 inches.

1. Low-Pressure Steam and Condensate, Weather-Exposed: Install a calcium silicate insulation with weatherproof jacket, Type T-1, with a thickness of not less than (1 inch). Insulate all system surfaces.

2. Steam and Condensate, Weather-Exposed, 125 Psig: Install a mineral fiber insulation with ASJ Jacket, Type T-1, with a thickness not less than (1 inch). Insulate all system surfaces.

3. Steam and Condensate, Weather-Exposed, 350 Psig: Install a mineral fiber insulation with ASJ Jacket with weatherproof jacket, Type T-1, with a thickness not less than (1 inch). Insulate all system surfaces.

6.7. Application:

6.7.1. Type T-1, Mineral Fiber with Vapor-Barrier Jacket: Apply factory and field attached vapor barrier jacket to piping insulated with miner fiber. Maintain vapor seal. Securely cement jackets, jacket laps, flaps, and bands in place with vapor-barrier adhesive. Provide jacket overlaps not less than 1.5 inches and jacketing bands for butt joints 3 inches in width.

1. Insulate exposed-to-view fittings and valve bodies with preformed mineral-fiber of the same thickness as the pipe-barrel insulation. Temporarily secure fitting insulation in place with light cord ties. Apply a 60-mil coating of white indoor vapor-barrier coating and, while still wet, wrap with glass lagging tape with 50 percent overlap, and smoothly lend into the adjacent jacketing. Apply additional coating as needed with rubber-gloved hands to smooth fillets or contour coating. Allow to fully cure before the finish coating is applied. Field fabricate and install insulation for concealed fittings and special configurations. Build up insulation from mineral fiber and a special mastic consisting of a mixture of insulating

10 | P a g e cement and lagging adhesive diluted with 3 parts water. Where standard vapor-barrier jacketing cannot be used, make the surfaces vapor tight by using coating and glass lagging cloth or tape as previously specified.

2. In lieu of materials and methods previously specified, fittings may be wrapped with a twine-secured, mineral-wool blanket to the required thickness and covered with pre-molded polyvinylchloride jackets. Make seams vapor tight with a double bead of manufacturer’s standard vapor-barrier adhesive applied in accordance with the manufacturer’s instructions.

Hold all jacket ends in place with AISI 300 series corrosion-resistant steel straps, 15-mile thick by 0.5 inch-wide.

3. Set pipe insulation into an outdoor vapor-barrier coating applied intermittently over a minimum length of 6 inches at maximum 12 feet spacing. Seal the ends of the insulation to the jacketing with the same coating material to provide an effective vapor-barrier stop.

4. Do not use staples as a means to apply insulation. Install continuous vapor-barrier materials over all surfaces, including areas inside pipe sleeves, hangers, and other concealment.

5. Provide piping insulation at hangers consisting of 13-pounds per cubic foot density;

fibrous-glass inserts or expanded, rigid, closed-cell, polyvinylchloride. Where required, seal junctions with vapor-barrier jacket, glass-cloth mesh tape, and vapor-barrier coating.

6. Expose white-bleached craft paper side of the jacketing to view.

7. Finish exposed-to-view insulation with not less than a 6-mill dry-film thickness of non-vapor-barrier coating suitable for painting.

6.7.2. Type T-2, Mineral Fiber with Glass Cloth Jacket: Apply factory attached pre-sized, white, glass cloth jacket to piping insulated with mineral fiber. Securely cement jackets, jacket laps, flaps, and bands in place with vapor-barrier adhesive. Provide jacket overlaps not less than 1.5 inches and jacketing bands for butt joints 3 inches wide.

1. Insulate exposed-to-view fittings with preformed mineral-fiber of the same thickness as the pipe insulation. Temporarily secure in place with light cord ties. Install impregnated glass lagging taper with indoor vapor-barrier on 50 percent overlap basis. Blend tape smoothly into the adjacent jacketing. Apply additional coating as needed, using rubber gloved hands to a smooth fillets or contour coatings. Tape ends of insulation to the pipe at valves 2 inches and smaller. Field fabricate and install insulation for concealed fittings and special configurations. Build up insulation from mineral fiber and mixture of insulating cement and lagging adhesive, diluted with 3 parts water. Finish surface with glass cloth or tape lagging.

2. Cover all valves 1 inches and larger and all flanges with preformed insulation of the same thickness as the adjacent insulation. OR Finish exposed-to view insulation with a minimum 6-mil dry-film thickness of non-vapor-barrier coating suitable for painting. OR In lieu of materials and methods specified above, fittings may be wrapped with a twine-secured, mineral-wool blanket to the required thickness and covered with pre-molded polyvinylchloride jackets. Hold all jacket ends in place with AISI 300 series corrosion-resistance steel straps, 15-mnils thick by 0.5 inch wide. Provide fitting insulation, thermally equivalent to pipe-barrel insulation to preclude surface temperatures detrimental to polyvinylchloride.

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6.7.3. Type T-3, Cellular Elastomer: Cover piping-system surfaces with flexible cellular-elastomer sheet or preformed insulation. Maintain vapor seal. Cement insulation into continuous material using a solvent cutback chloroprene adhesive recommended by the manufacturer for the specific purpose. Apply adhesive to both of the contract surfaces on a 100-percent coverage basis to a minimum thickness of 10-mils. Wet or approximately 150 square feet per gallon of undiluted adhesive.

1. Set cold water piping insulation into an outdoor vapor-barrier coating applied intermittently over a minimum length of 6 inches at maximum intervals of 12 feet. At piping supports, ensure insulation is continuous by using outside-carrying type clevis hangers with insulation shield. Install (Cork or Wood dowel) load-bearing inserts between the pipe and insulation shields to prevent insulation compression.

2. Insulate hot-water, cold-water, and condensate drain pipes to the extent shown with nominal (0.375 or 0.5)-inch thick, fire retardant (FR), cellular elastomer, preformed pipe insulation. Seal joints with adhesive.

3. At pipe hangers or supports where the insulation rests on the pipe hanger strap, cut the insulation with a brass cork borer and insert a No. 3 superior grade cork. Seal seams with approved adhesive. Insulate sweat fitting with miter-cut pieces of cellular elastomer insulation of the same nominal pipe size and thickness as the insulation on the adjacent piping or tubing. Join miter-cut pieces with approved adhesive. Slit and snap covers over the fitting, and seal joints with approved adhesive.

4. Insulate screwed fittings with sleeve-type covers formed from miter-cut pieces of cellular elastomer thermal insulation having an inside diameter large enough to overlap adjacent pipe insulation. Lap pipe insulation against fittings, and overlap not less than 1 inch. Use adhesive to join cover pieces and cement the cover to the pipe insulation.

5. Finish surfaces exposed to view or ultraviolet light with not less than a 2-mil minimum dry-film thickness application of polyvinylchloride lacquer recommended by the manufacturer.

Apply in not less than two coats.

6.7.4. Type T-4, Cellular Glass with Vapor-Barrier Jacket: Apply factory and field attached vapor barrier jacket to piing insulated with cellular glass. Maintain vapor seal. Securely cement jackets, jacket laps, flaps, and bands in place with vapor-barrier adhesive. Provide jacket overlaps not less than 1.5 inches. Provide jacket bands for butt joints of not less than 3 inches width. Provide insulation continuous through hangers. Bed insulation in an outdoor vapor-barrier coating applied to all piping surfaces.

1. Insulate flanges, unions, valves, anchors, and fittings with factory pre-molded or prefabricated or field fabricated segments of insulation of the same material and thickness as the adjoining pipe insulation. When segments of insulation are used, provide elbows with not less than three segments. For other fittings and valves, cut segments to the required curvature or nesting size.

2. Secure segments of the insulation in place with twine or copper wire. After the insulation segments are firmly in place, apply a vapor-barrier coating over the insulation in two coats with glass tape imbedded between coats. Vary the tint of the first coat from the expected white color of the second coat to ensure the complete application of the two coats. Apply

12 | P a g e coatings to a total dry-film thickness of 0.0625 inch minimum. Overlap glass tape seams not less than 1 inch and tape ends not less than 4 inches.

3. In lieu of materials and methods specified above, fittings may be wrapped with 0.375 inch thick, vapor-barrier, adhesive-coated strips of cellular elastomer insulation. Install insulation under tension, compressed to 25 percent of original thickness, and wrapped until overall thickness is equal to adjacent insulation. Secure cellular elastomer in place with twine and sealed with vapor-barrier coating applied to produce not less than 0.0625-inch dry-film thickness. Cover fittings with pre-molded polyvinylchloride jackets. Make seams vapor-tight with a double bead of manufacturer’s standard vapor-barrier adhesive applied in accordance with the manufacturer’s instructions. Hold jacket ends in place with AISI 300 series corrosion-resistant steel straps, 15-mils thick by 0.5-inch wide.

4. To prevent condensation, insulate anchors secured directly to piping for not less than 6 inches from the surface of the pipe insulation.

5. Install white-bleached craft paper side of jacket exposed to view.

6. Finish exposed-to-view insulation with not less than a 6-mil dry-film thickness of non-vapor-barrier coating suitable for painting.

6.7.5. Type T-5, Calcium Silicate with Glass Cloth Jacket (Piping): Apply factory attached pre-sized, white glass cloth jacket to piping insulated with mineral fiber. Field apply jackets when required.

Securely cement jackets, jacket laps, flaps, and bands in place with vapor-barrier adhesive. Ensure jacket overlap is not less than 1.5 inches and jacketing bands for butt joints are 4 inches wide.

6.7.6. Type T-7, Calcium Silicate with Glass Cloth jacket (surfaces): Cover surfaces with insulation black bedded in an insulating cement and covered with glass cloth jacketing. Clean surfaces with a chlorinated solvent. Mix general purpose insulating cement with 3 parts water to 1 part non-vapor-barrier adhesive to bring to application consistency. Set block into bedding and joints and fill spaces with a bedding mix and wrap with galvanized chicken wire mesh well laced into an envelope.

Trowel a 0.375 inch thick coatings of bedding mix jacket on the non-vapor-barrier adhesive and glass cloth. Finish surfaces with not less than a 6-mil dry-film thickness of non-vapor-barrier coating. Aluminum sheet jacketing may be used in lieu of glass cloth.

6.7.7. Type T-9, Cellular Elastomer: Clean pump surfaces with solvent. Apply not less than 1 inch of general purpose insulating cement, mixed with non-vapor-barrier adhesive diluted with 3 parts water, to achieve smooth surface and configuration contours. After all water has been removed, cover surfaces with 0.5 inch thick cellular elastomer insulation, attached and joined into a continuous sheet with an outdoor vapor-barrier coating recommended by the insulation manufacturer for the specific purpose. Apply coating to both of the contact surfaces on a 100-percent coverage basis with a minimum thickness of 10 miles wet. Blend coating into the adjacent flange insulation. Cover joint with a band flange cellular elastomer equal to the flange assembly width. Use same coating to seal insulation to the casing at penetrations and terminations. Insulate pumps in a manner that permits insulation to be removed to repair or replace pumps. Finish insulation with a 2 mil minimum dry-film application of a polyvinylchloride lacquer coating recommended by the manufacturer and applied in not less than two coats.

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6.7.8. Cover piping system surfaces with calcium silicate insulation. Cover fittings and valve bodies with preformed insulation of the same material and thickness as the adjoining pipe insulation.

6.7.9. PIPE INSULATION SCHEDULE.

INDOOR PIPE

A. Chilled Water, above 40 Deg F (5 Deg C): Insulation shall be one of the following:

1. Mineral-Fiber, Type T-1: 1-1/2” Thick

OUTDOOR PIPE

B. Chilled Water, above 40 Deg F (5 Deg C): Insulation shall be one on the following:

1. Mineral-Fiber, Type T-1 w/Aluminum Jacket: 2” Thick.