Attachment_12_-_Revised_Specification_Section_23_07_00_dated_15_Aug_18.pdf

DKFX 14-1065 Repair HVAC Combat Camera Fac., Bldg 241

Section 23 07 00 Page 1

SECTION 23 07 00

THERMAL INSULATION FOR MECHANICAL SYSTEMS

02/13

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. At the discretion of the Government, the manufacturer of any material supplied will be required to furnish test reports pertaining to any of the tests necessary to assure compliance with the standard or standards referenced in this specification.

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAE 90.1 - IP (2010) Energy Standard for Buildings Except Low-Rise Residential Buildings

ASTM INTERNATIONAL (ASTM)

ASTM A167 (2011) Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

ASTM A240/A240M (2015b) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A580/A580M (2015) Standard Specification for Stainless Steel Wire

ASTM B209 (2014) Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

ASTM C1136 (2012) Standard Specification for Flexible, Low Permeance Vapor Retarders for Thermal Insulation

ASTM C1710 (2011) Standard Guide for Installation of Flexible Closed Cell Preformed Insulation in Tube and Sheet Form

ASTM C195 (2007; R 2013) Standard Specification for Mineral Fiber Thermal Insulating Cement

ASTM C450 (2008) Standard Practice for Fabrication of Thermal Insulating Fitting Covers for NPS Piping, and Vessel Lagging

Attachment 12 FA4418-18-R-0010

DKFX 14-1065 Repair HVAC Combat Camera Fac., Bldg 2 41

Section 23 07 00 Page 2

ASTM C533 (2013) Standard Specification for Calcium Silicate Block and Pipe Thermal Insulation

ASTM C534/C534M (2014) Standard Specification for Preformed

Flexible Elastomeric Cellular Thermal Insulation in Sheet and Tubular Form

ASTM C547 (2015) Standard Specification for Mineral

Fiber Pipe Insulation

ASTM C552 (2015) Standard Specification for Cellular Glass Thermal Insulation

ASTM C585 (2010) Standard Practice for Inner and Outer

Diameters of Thermal Insulation for Nominal Sizes of Pipe and Tubing

ASTM C592 (2013) Standard Specification for Mineral

Fiber Blanket Insulation and Blanket-Type Pipe Insulation (Metal-Mesh Covered) (Industrial Type)

ASTM C612 (2014) Mineral Fiber Block and Board Thermal

Insulation

ASTM C647 (2008; R 2013) Properties and Tests of Mastics and Coating Finishes for Thermal

ASTM C795 (2008; R 2013) Standard Specification for

Thermal Insulation for Use in Contact with Austenitic Stainless Steel

ASTM C916 (2014) Standard Specification for Adhesives for Duct Thermal Insulation

ASTM C920 (2014a) Standard Specification for Elastomeric Joint Sealants

ASTM C921 (2010) Standard Practice for Determining the

Properties of Jacketing Materials for Thermal

ASTM D2863 (2013) Measuring the Minimum Oxygen

Concentration to Support Candle-Like Combustion of Plastics (Oxygen Index)

ASTM D5590 (2000; R 2010; E 2012) Standard Test Method for Determining the Resistance of Paint Films and Related Coatings to Fungal Defacement by Accelerated Four-Week Agar Plate Assay

ASTM D882 (2012) Tensile Properties of Thin Plastic

Sheeting

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ASTM E2231 (2015) Specimen Preparation and Mounting of Pipe and Duct Insulation Materials to Assess Surface Burning Characteristics

ASTM E84 (2015b) Standard Test Method for Surface

Burning Characteristics of Building Materials

ASTM E96/E96M (2014) Standard Test Methods for Water Vapor Transmission of Materials

FM GLOBAL (FM)

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO )

ISO 2758 (2014) Paper - Determination of Bursting Strength

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-69 (2003; Notice 2012) Pipe Hangers and Supports

- Selection and Application (ANSI Approved American National Standard)

MIDWEST INSULATION CONTRACTORS ASSOCIATION (MICA)

MICA Insulation Stds (1999) National Commercial & Industrial

Insulation Standards

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 90A (2015) Standard for the Installation of Air Conditioning and Ventilating Systems

NFPA 90B (2015) Standard for the Installation of Warm

Air Heating and Air Conditioning Systems

U.S. DEPARTMENT OF DEFENSE (DOD)

MIL-A-24179 (1969; Rev A; Am 2 1980; Notice 1 1987) Adhesive, Flexible Unicellular-Plastic Thermal Insulation

MIL-A-3316 (1987; Rev C; Am 2 1990) Adhesives, Fire-

Resistant, Thermal Insulation

MIL-PRF-19565 (1988; Rev C) Coating Compounds, Thermal Insulation, Fire- and Water-Resistant, Vapor- Barrier

UNDERWRITERS LABORATORIES (UL)

UL 723 (2008; Reprint Aug 2013) Test for Surface

Burning Characteristics of Building Materials

Section 23 07 00 Page 4

UL 94 (2013; Reprint Jul 2015) Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances

1.2 SYSTEM DESCRIPTION

1.2.1 General

Provide field-applied insulation and accessories on mechanical systems as specified herein; factory-applied insulation is spe cified under the piping, duct or equipment to be insulated. Insulation of h eat distribution systems and chilled water systems outside of buildings shal l be as specified in Field applied insulation materials required for use on Government-furnished items as listed in the SPECIAL CONTRACT REQUIREMENT S shall be furnished and installed by the Contractor.

1.2.2 Recycled Materials

Provide thermal insulation containing recycled mate rials to the extent practicable, provided that the materials meet all o ther requirements of this section. The minimum recycled material content of the following insulation are:

Rock Wool 75 percent slag of weight

Fiberglass 20-25 percent glass cullet by weight

Rigid Foam 9 percent recovered material

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for inf ormation only. When used, a designation following the "G" designation i dentifies the office that will review the submittal for the Government.

Submit the three SD types, SD-02 Shop Drawings, SD- 03 Product Data, and SD- 08 Manufacturer's Instructions at the same time for each system.

SD-03 Product Data

Pipe Insulation Systems ; G Duct Insulation Systems ; G Equipment Insulation Systems ; G

SD-04 Samples

Thermal Insulation ; G Display Samples ; G

SD-08 Manufacturer's Instructions

Pipe Insulation Systems ; G Duct Insulation Systems ; G

Section 23 07 00 Page 5

Equipment Insulation Systems ; G

SD-11 Closeout Submittals

Reduce Volatile Organic Compounds (VOC) for Caulking, Sealant and Adhesive Materials; S Recycled Content for Pipe and Ductwork Insulation Materials; S

1.4 QUALITY ASSURANCE

1.4.1 Installer Qualification

Qualified installers shall have successfully comple ted three or more similar type jobs within the last 5 years.

1.5 DELIVERY, STORAGE, AND HANDLING

Materials shall be delivered in the manufacturer's unopened containers.

Materials delivered and placed in storage shall be provided with protection from weather, humidity, dirt, dust and other contam inants. The Contracting Officer may reject insulation material and supplies that become dirty, dusty, wet, or contaminated by some other means. P ackages or standard containers of insulation, jacket material, cements, adhesives, and coatings delivered for use, and samples required for approva l shall have manufacturer's stamp or label attached giving the n ame of the manufacturer and brand, and a description of the material, date codes, and approximate shelf life (if applicable). Insulation packages an d containers shall be asbestos free.

PART 2 PRODUCTS

2.1 STANDARD PRODUCTS

Provide materials which are the standard products o f manufacturers regularly engaged in the manufacture of such products and tha t essentially duplicate items that have been in satisfactory use for at lea st 2 years prior to bid opening. Submit a complete list of materials, incl uding manufacturer's descriptive technical literature, performance data, catalog cuts, and installation instructions. The product number, k-v alue, thickness and furnished accessories including adhesives, sealants and jackets for each mechanical system requiring insulation shall be inc luded. The product data must be copyrighted, have an identifying or publica tion number, and shall have been published prior to the issuance date of t his solicitation.

Materials furnished under this section shall be sub mitted together in a booklet.

2.1.1 Insulation System

Provide insulation systems in accordance with the a pproved MICA National Insulation Standards plates as supplemented by this specification. Provide field-applied insulation for heating, ventilating, and cooling (HVAC) air distribution systems and piping systems that are lo cated within, on, under, and adjacent to buildings; and for plumbing systems . Provide CFC and HCFC free insulation.

2.1.2 Surface Burning Characteristics

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Unless otherwise specified, insulation must have a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84. Flame spread, and smoke developed indexes, shall be determined by ASTM E84 or UL 723 . Test insulation in the same density and installed thickness as the mat erial to be used in the actual construction. Prepare and mount test specim ens according to ASTM E2231.

2.2 MATERIALS

Provide insulation that meets or exceed the require ments of ASHRAE 90.1 - IP . Insulation exterior shall be cleanable, grease r esistant, non-flaking and non-peeling. Materials shall be compatible and shall not contribute to corrosion, soften, or otherwise attack surfaces to which applied in either wet or dry state. Materials to be used on stainles s steel surfaces shall meet ASTM C795 requirements. Calcium silicate shall not be used on chilled or cold water systems. Materials shall be asbestos free. Provide product recognized under UL 94 (if containing plastic) and listed in FM APP GUIDE.

2.2.1 Adhesives

2.2.1.1 Acoustical Lining Insulation Adhesive

Adhesive shall be a nonflammable, fire-resistant ad hesive conforming to ASTM C916, Type I.

2.2.1.2 Mineral Fiber Insulation Cement

Cement shall be in accordance with ASTM C195.

2.2.1.3 Lagging Adhesive

Lagging is the material used for thermal insulation , especially around a cylindrical object. This may include the insulatio n as well as the cloth/material covering the insulation. To resist mold/mildew, lagging adhesive shall meet ASTM D5590 with 0 growth rating. Lagging adhesives shall be nonflammable and fire-resistant and shall have a maximum flame spread index of 25 and a maximum smoke developed in dex of 50 when tested in accordance with ASTM E84. Adhesive shall be MIL-A-3316 , Class 1, pigmented white and be suitable for bonding fibrous glass clo th to faced and unfaced fibrous glass insulation board; for bonding cotton brattice cloth to faced and unfaced fibrous glass insulation board; for sea ling edges of and bonding glass tape to joints of fibrous glass board; for bo nding lagging cloth to thermal insulation; or Class 2 for attaching fibrou s glass insulation to metal surfaces. Lagging adhesives shall be applied in strict accordance with the manufacturer's recommendations for pipe an d duct insulation.

2.2.1.4 Contact Adhesive

Adhesives may be any of, but not limited to, the ne oprene based, rubber based, or elastomeric type that have a maximum flam e spread index of 25 and a maximum smoke developed index of 50 when tested i n accordance with ASTM E84. The adhesive shall not adversely affect, initial ly or in service, the insulation to which it is applied, nor shall it cau se any corrosive effect on metal to which it is applied. Any solvent dispe rsing medium or volatile component of the adhesive shall have no objectionab le odor and shall not contain any benzene or carbon tetrachloride. The d ried adhesive shall not

Section 23 07 00 Page 7 emit nauseous, irritating, or toxic volatile matter s or aerosols when the adhesive is heated to any temperature up to 212 degrees F . The dried adhesive shall be nonflammable and fire resistant. Flexible Elastomeric Adhesive: Comply with MIL-A-24179 , Type II, Class I. Provide product listed in FM APP GUIDE.

2.2.2 Caulking

ASTM C920, Type S, Grade NS, Class 25, Use A.

2.2.3 Corner Angles

Nominal 0.016 inch aluminum 1 by 1 inch with factory applied kraft backing.

Aluminum shall be ASTM B209, Alloy 3003, 3105, or 5005.

2.2.4 Fittings

Fabricated Fittings are the prefabricated fittings for flexible elastomeric pipe insulation systems in accordance with ASTM C1710. Together with the flexible elastomeric tubes, they provide complete s ystem integrity for retarding heat gain and controlling condensation dr ip from chilled-water and refrigeration systems. Flexible elastomeric, fabric ated fittings provide thermal protection (0.25 k) and condensation resist ance (0.05 Water Vapor Transmission factor). For satisfactory performance , properly installed protective vapor retarder/barriers and vapor stops shall be used on high relative humidity and below ambient temperature app lications to reduce movement of moisture through or around the insulati on to the colder interior surface.

2.2.5 Finishing Cement

ASTM C450: Mineral fiber hydraulic-setting thermal insulatin g and finishing cement. All cements that may come in contact with Austenitic stainless steel must comply with ASTM C795.

2.2.6 Fibrous Glass Cloth and Glass Tape

Fibrous glass cloth, with 20X20 maximum mesh size, and glass tape shall have maximum flame spread index of 25 and a maximum smok e developed index of 50 when tested in accordance with ASTM E84. Tape shall be 4 inch wide rolls.

Class 3 tape shall be 4.5 ounces/square yard . Elastomeric Foam Tape: Black vapor-retarder foam tape with acrylic adhesive cont aining an anti-microbial additive.

2.2.7 Staples

Outward clinching type ASTM A167, Type 304 or 316 stainless steel.

2.2.8 Jackets

2.2.8.1 Aluminum Jackets

Aluminum jackets shall be corrugated, embossed or s mooth sheet, 0.016 inch nominal thickness; ASTM B209, Temper H14, Temper H16, Alloy 3003, 5005, or 3105. Corrugated aluminum jacket shall not be used outdoors. Aluminum jacket securing bands shall be Type 304 stainless s teel, 0.015 inch thick, 1/2 inch wide for pipe under 12 inch diameter and 3/4 inch wide for pipe

Section 23 07 00 Page 8 over 12 inch and larger diameter . Aluminum jacket circumferential seam bands shall be 2 by 0.016 inch aluminum matching jacket material. Bands for insulation below ground shall be 3/4 by 0.020 inch thick stainless steel, or fiberglass reinforced tape. The jacket may, at the option of the Contractor, be provided with a factory fabricated P ittsburgh or "Z" type longitudinal joint. When the "Z" joint is used, th e bands at the circumferential joints shall be designed by the man ufacturer to seal the joints and hold the jacket in place.

2.2.8.2 Polyvinyl Chloride (PVC) Jackets

Polyvinyl chloride (PVC) jacket and fitting covers shall have high impact strength, ultraviolet (UV) resistant rating or trea tment and moderate chemical resistance with minimum thickness 0.030 inch .

2.2.8.3 Vapor Barrier/Weatherproofing Jacket

Vapor barrier/weatherproofing jacket shall be lamin ated self-adhesive, greater than 3 plies standard grade, silver, white, black and embossed or greater than 8 ply (minimum 2.9 mils adhesive); with 0.0000 permeability when tested in accordance with ASTM E96/E96M, using the water transmission rate test method; heavy duty, white or natural; and UV resistant. Flexible Elastomeric exterior foam with factory applied, UV Jacket made with a cold weather acrylic adhesive. Construction of laminate designed to provide UV resistance, high puncture, tear resistance and exce llent Water Vapor Transmission (WVT) rate.

2.2.8.4 Vapor Barrier/Vapor Retarder

Apply the following criteria to determine which sys tem is required.

a. On ducts, piping and equipment operating below 80 degrees F or located outside shall be equipped with a vapor barrier.

b. Ducts, pipes and equipment that are located ins ide and that always operate above 100 degrees F shall be installed with a vapor retarder where required as stated in paragraph VAPOR RETARDE R REQUIRED.

2.2.9 Vapor Retarder Required

ASTM C921, Type I, minimum puncture resistance 50 Beach unit s on all surfaces except concealed ductwork, where a minimum puncture resistance of 25 Beach units is acceptable. Minimum tensile stre ngth, 35 pounds/inch width. ASTM C921, Type II, minimum puncture resistance 25 Beach uni ts, tensile strength minimum 20 pounds/inch width. Jackets used on insulation exposed in finished areas shall have white finish s uitable for painting without sizing. Based on the application, insulati on materials that require manufacturer or fabricator applied pipe insulation jackets are cellular glass, when all joints are sealed with a vapor barr ier mastic, and mineral fiber. All non-metallic jackets shall have a max imum flame spread index of 25 and a maximum smoke developed index of 50 whe n tested in accordance with ASTM E84. Flexible elastomerics require (in addition to va por barrier skin) vapor retarder jacketing for high relative hu midity and below ambient temperature applications.

2.2.9.1 White Vapor Retarder All Service Jacket ( ASJ)

Section 23 07 00 Page 9

ASJ is for use on hot/cold pipes, ducts, or equipme nt indoors or outdoors if covered by a suitable protective jacket. The produ ct shall meet all physical property and performance requirements of ASTM C1136, Type I, except the burst strength shall be a minimum of 85 psi . ASTM D2863 Limited Oxygen Index (LOI) shall be a minimum of 31.

In addition, neither the outer exposed surface nor the inner-most surface contacting the insulation shall be paper or other m oisture-sensitive material. The outer exposed surface shall be white and have an emittance of not less than 0.80. The outer exposed surface shal l be paintable.

2.2.9.2 Vapor Retarder/Vapor Barrier Mastic Coati ngs

2.2.9.2.1 Vapor Barrier

The vapor barrier shall be self adhesive (minimum 2 mils adhesive, 3 mils embossed) greater than 3 plies standard grade, silv er, white, black and embossed white jacket for use on hot/cold pipes. P ermeability shall be less than 0.02 when tested in accordance with ASTM E96/E96M. Products shall meet UL 723 or ASTM E84 flame and smoke requirements and shall be UV resis tant.

2.2.9.2.2 Vapor Retarder

The vapor retarder coating shall be fire and water resistant and appropriately selected for either outdoor or indoor service. Color shall be white. The water vapor permeance of the compound s hall be 0.013 perms or less at 43 mils dry film thickness as determined according to proc edure B of ASTM E96/E96M utilizing apparatus described in ASTM E96/E96M. The coating shall be nonflammable, fire resistant type. To res ist mold/mildew, coating shall meet ASTM D5590 with 0 growth rating. Coating shall meet MIL-PRF- 19565 Type II (if selected for indoor service) and be Qu alified Products Database listed. All other application and service properties shall be in accordance with ASTM C647.

2.2.9.3 Laminated Film Vapor Retarder

ASTM C1136, Type I, maximum moisture vapor transmission 0.02 perms, minimum puncture resistance 50 Beach units on all surfaces except concealed ductwork; where Type II, maximum moisture vapor tra nsmission 0.02 perms, a minimum puncture resistance of 25 Beach units is ac ceptable. Vapor retarder shall have a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84. Flexible Elastomeric exterior foam with factory applied UV Jacket. Cons truction of laminate designed to provide UV resistance, high puncture, t ear resistance and an excellent WVT rate.

2.2.9.4 Polyvinylidene Chloride (PVDC) Film Vapor Retarder

The PVDC film vapor retarder shall have a maximum m oisture vapor transmission of 0.02 perms, minimum puncture resist ance of 150 Beach units, a minimum tensile strength in any direction of 30 lb/inch when tested in accordance with ASTM D882, and a maximum flame spread index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84.

2.2.9.5 Polyvinylidene Chloride Vapor Retarder Ad hesive Tape

Section 23 07 00 Page 10

Requirements must meet the same as specified for La minated Film Vapor Retarder above.

2.2.9.6 Vapor Barrier/Weather Barrier

The vapor barrier shall be greater than 3 ply self adhesive laminate -white vapor barrier jacket- superior performance (less th an 0.0000 permeability when tested in accordance with ASTM E96/E96M). Vapor barrier shall meet UL 723 or ASTM E84 25 flame and 50 smoke requirements; and UV resista nt.

Minimum burst strength 185 psi in accordance with ISO 2758 . Tensile strength 68 lb/inch width (PSTC-1000). Tape shall be as specified for laminated film vapor barrier above.

2.2.10 Vapor Retarder Not Required

ASTM C921, Type II, Class D, minimum puncture resistance 50 Beach units on all surfaces except ductwork, where Type IV, maximu m moisture vapor transmission 0.10, a minimum puncture resistance of 25 Beach units is acceptable. Jacket shall have a maximum flame spre ad index of 25 and a maximum smoke developed index of 50 when tested in accordance with ASTM E84.

2.2.11 Wire

Soft annealed ASTM A580/A580M Type 302, 304 or 316 stainless steel, 16 or 18 gauge.

2.2.12 Insulation Bands

Insulation bands shall be 1/2 inch wide; 26 gauge stainless steel.

2.2.13 Sealants

Sealants shall be chosen from the butyl polymer typ e, the styrene-butadiene rubber type, or the butyl type of sealants. Sealan ts shall have a maximum permeance of 0.02 perms based on Procedure B for ASTM E96/E96M, and a maximum flame spread index of 25 and a maximum smok e developed index of 50 when tested in accordance with ASTM E84.

2.3 PIPE INSULATION SYSTEMS

Conform insulation materials to Table 1 and minimu m insulation thickness as listed in Table 2 and meet or exceed the requiremen ts of ASHRAE 90.1 - IP .

Limit pipe insulation materials to those listed her ein and meeting the following requirements:

2.3.1 Aboveground Cold Pipeline ( -30 to 60 deg. F )

Insulation for outdoor, indoor, exposed or conceale d applications, shall be as follows:

2.3.1.1 Cellular Glass

ASTM C552, Type II, and Type III. Supply the insulation fro m the fabricator with (paragraph WHITE VAPOR RETARDER ALL SERVICE JA CKET (ASJ)) ASJ vapor retarder and installed with all longitudinal overla ps sealed and all circumferential joints ASJ taped or supply the insu lation unfaced from the

Section 23 07 00 Page 11 fabricator and install with all longitudinal and ci rcumferential joints sealed with vapor barrier mastic.

2.3.1.2 Flexible Elastomeric Cellular Insulation

Closed-cell, foam- or expanded-rubber materials con taining anti-microbial additive, complying with ASTM C534/C534M, Grade 1, Type I or II. Type I, Grade 1 for tubular materials. Type II, Grade 1, f or sheet materials. Type I and II shall have vapor retarder/vapor barrier sk in on one or both sides of the insulation, and require an additional exteri or vapor retarder covering for high relative humidity and below ambie nt temperature applications.

2.3.2 Aboveground Hot Pipeline (Above 60 deg. F )

Insulation for outdoor, indoor, exposed or conceale d applications shall meet the following requirements. Supply the insulation with manufacturer's recommended factory-applied jacket/vapor barrier.

2.3.2.1 Mineral Fiber

ASTM C547, Types I, II or III, supply the insulation with ma nufacturer's recommended factory-applied jacket.

2.3.2.2 Cellular Glass

ASTM C552, Type II and Type III. Supply the insulation with manufacturer's recommended factory-applied jacket.

2.3.2.3 Flexible Elastomeric Cellular Insulation

Closed-cell, foam- or expanded-rubber materials con taining anti-microbial additive, complying with ASTM C534/C534M, Grade 1, Type I or II to 220 degrees F service. Type I for tubular materials. Type II fo r sheet materials.

2.4 DUCT INSULATION SYSTEMS

2.4.1 Factory Applied Insulation

Provide factory-applied ASTM C552, cellular glass thermal insulation according to manufacturer's recommendations for ins ulation with insulation manufacturer's standard reinforced fire-retardant v apor barrier, with identification of installed thermal resistance (R) value and out-of-package R value.

2.4.1.1 Rigid Insulation

Calculate the minimum thickness in accordance with ASHRAE 90.1 - IP .

2.4.1.2 Blanket Insulation

Calculate minimum thickness in accordance with ASHRAE 90.1 - IP .

2.4.2 Duct Insulation Jackets

Section 23 07 00 Page 12

2.4.2.1 All-Purpose Jacket

Provide insulation with insulation manufacturer's s tandard reinforced fire-retardant jacket with or without integral vapor bar rier as required by the service. In exposed locations, provide jacket with a white surface suitable for field painting.

2.4.2.2 Metal Jackets

2.4.2.2.1 Aluminum Jackets

ASTM B209, Temper H14, minimum thickness of 27 gauge ( 0.016 inch ), with factory-applied polyethylene and kraft paper moistu re barrier on inside surface. Provide smooth surface jackets for jacket outside dimension 8 inches and larger. Provide corrugated surface jackets fo r jacket outside dimension 8 inches and larger. Provide stainless steel bands, minimu m width of 1/2 inch .

2.4.2.2.2 Stainless Steel Jackets

ASTM A167 or ASTM A240/A240M ; Type 304, minimum thickness of 33 gauge (

0.010 inch ), smooth surface with factory-applied polyethylene and kraft paper moisture barrier on inside surface. Provide stainless steel bands, minimum width of 1/2 inch .

2.4.2.3 Vapor Barrier/Weatherproofing Jacket

Vapor barrier/weatherproofing jacket shall be lamin ated self-adhesive (minimum 2 mils adhesive, 3 mils embossed) less than 0.0000 permeability, (greater than 3 ply, standard grade, silver, white, black and embossed or greater than 8 ply (minimum 2.9 mils adhesive), heavy duty white or natural).

2.5 EQUIPMENT INSULATION SYSTEMS

Insulate equipment and accessories as specified in Tables 5 and 6. In outside locations, provide insulation 1/2 inch thicker than specified.

Increase the specified insulation thickness for equ ipment where necessary to equal the thickness of angles or other structural m embers to make a smooth, exterior surface. Submit a booklet containing manu facturer's published installation instructions for the insulation system s. The instructions must be copyrighted, have an identifying or publication number, and shall have been published prior to the issuance date of this s olicitation. A booklet is also required by paragraphs titled: Pipe Insula tion Systems and Duct Insulation Systems.

PART 3 EXECUTION

3.1 APPLICATION - GENERAL

Insulation shall only be applied to unheated and un cooled piping and equipment. Flexible elastomeric cellular insulatio n shall not be compressed at joists, studs, columns, ducts, hangers, etc. Th e insulation shall not pull apart after a one hour period; any insulation found to pull apart after one hour, shall be replaced.

Section 23 07 00 Page 13

3.1.1 Display Samples

Submit and display, after approval of materials, ac tual sections of installed systems, properly insulated in accordance with the specification requirements. Such actual sections must remain acc essible to inspection throughout the job and will be reviewed from time t o time for controlling the quality of the work throughout the construction site. Each material used shall be identified, by indicating on an attac hed sheet the specification requirement for the material and the material by each manufacturer intended to meet the requirement. The Contracting Officer will inspect display sample sections at the jobsite. Ap proved display sample sections shall remain on display at the jobsite dur ing the construction period. Upon completion of construction, the displ ay sample sections will be closed and sealed.

3.1.1.1 Pipe Insulation Display Sections

Display sample sections shall include as a minimum an elbow or tee, a valve, dielectric waterways and flanges, a hanger with pro tection shield and insulation insert, or dowel as required, at support point, method of fastening and sealing insulation at longitudinal la p, circumferential lap, butt joints at fittings and on pipe runs, and termi nating points for each type of pipe insulation used on the job, and for ho t pipelines and cold pipelines, both interior and exterior, even when th e same type of insulation is used for these services.

3.1.1.2 Duct Insulation Display Sections

Display sample sections for rigid and flexible duct insulation used on the job. Use a temporary covering to enclose and prote ct display sections for duct insulation exposed to weather

3.1.2 Installation

Except as otherwise specified, material shall be in stalled in accordance with the manufacturer's written instructions. Insu lation materials shall not be applied until tests specified in other secti ons of this specification are completed. Material such as rust, scale, dirt and moisture shall be removed from surfaces to receive insulation. Insul ation shall be kept clean and dry. Insulation shall not be removed from its shipping containers until the day it is ready to use and shall be returned to like containers or equally protected from dirt and moisture at the end of each workday.

Insulation that becomes dirty shall be thoroughly c leaned prior to use. If insulation becomes wet or if cleaning does not rest ore the surfaces to like new condition, the insulation will be rejected, and shall be immediately removed from the jobsite. Joints shall be staggere d on multi layer insulation. Mineral fiber thermal insulating cemen t shall be mixed with demineralized water when used on stainless steel su rfaces. Insulation, jacketing and accessories shall be installed in acc ordance with MICA Insulation Stds plates except where modified herein or on the draw ings.

3.1.3 Firestopping

Where pipes and ducts pass through fire walls, fire partitions, above gr ade floors, and fire rated chase walls, the penetration shall be sealed with fire stopping materials. The protection of ducts a t point of passage through firewalls must be in accordance with NFPA 90A and/or NFPA 90B. All

Section 23 07 00 Page 14 other penetrations, such as piping, conduit, and wi ring, through firewalls must be protected with a material or system of the same hourly rating that is listed by UL, FM, or a NRTL.

3.1.4 Painting and Finishing

Painting shall be as specified in Section 09 90 00 PAINTS AND COATINGS.

3.1.5 Installation of Flexible Elastomeric Cellul ar Insulation

Install flexible elastomeric cellular insulation wi th seams and joints sealed with rubberized contact adhesive. Flexible elastomeric cellular insulation shall not be used on surfaces greater th an 220 degrees F .

Stagger seams when applying multiple layers of insu lation. Protect insulation exposed to weather and not shown to have vapor barrier weatherproof jacketing with two coats of UV resista nt finish or PVC or metal jacketing as recommended by the manufacturer after the adhesive is dry and cured.

3.1.5.1 Adhesive Application

Apply a brush coating of adhesive to both butt ends to be joined and to both slit surfaces to be sealed. Allow the adhesive to set until dry to touch but tacky under slight pressure before joining the surfaces. Insulation seals at seams and joints shall not be capable of b eing pulled apart one hour after application. Insulation that can be pul led apart one hour after installation shall be replaced.

3.1.5.2 Adhesive Safety Precautions

Use natural cross-ventilation, local (mechanical) p ickup, and/or general area (mechanical) ventilation to prevent an accumul ation of solvent vapors, keeping in mind the ventilation pattern must remove any heavier-than-air solvent vapors from lower levels of the workspaces. Gloves and spectacle-type safety glasses are recommended in accordance w ith safe installation practices.

3.1.6 Welding

No welding shall be done on piping, duct or equipment without written approval of the Contracting Officer. The capacitor discharge welding process may be used for securing metal fasteners to duct .

3.1.7 Pipes/Ducts/Equipment That Require Insulation

Insulation is required on all pipes, ducts, or equipment, except for omitted items as specified.

3.2 PIPE INSULATION SYSTEMS INSTALLATION

3.2.1 Pipe Insulation

3.2.1.1 General

Pipe insulation shall be installed on aboveground h ot and cold pipeline systems as specified below to form a continuous the rmal retarder/barrier, Section 23 07 00 Page 15 including straight runs, fittings and appurtenances unless specified otherwise. Installation shall be with full length units of insulation and using a single cut piece to complete a run. Cut pi eces or scraps abutting each other shall not be used. Pipe insulation shal l be omitted on the following:

a. Pipe used solely for fire protection.

b. Chromium plated pipe to plumbing fixtures. How ever, fixtures for use by the physically handicapped shall have the hot wa ter supply and drain, including the trap, insulated where exposed.

c. Sanitary drain lines.

d. Air chambers.

e. Adjacent insulation.

f. ASME stamps.

g. Access plates of fan housings.

h. Cleanouts or handholes.

3.2.1.2 Pipes Passing Through Walls, Roofs, and F loors

Pipe insulation shall be continuous through the sle eve.

Provide an aluminum jacket or vapor barrier/weather proofing self adhesive jacket (minimum 2 mils adhesive, 3 mils embossed) less than 0.0000 permeability, greater than 3 ply standard grade, si lver, white, black and embossed with factory applied moisture retarder ove r the insulation wherever penetrations require sealing.

3.2.1.2.1 Penetrate Interior Walls

The aluminum jacket or vapor barrier/weatherproofin g - self adhesive jacket (minimum 2 mils adhesive, 3 mils embossed) less than 0.0000 permeability, greater than 3 plies standard grade, silver, white, black and embossed shall extend 2 inches beyond either side of the wall and shall be secure d on each end with a band.

3.2.1.2.2 Penetrating Floors

Extend the aluminum jacket from a point below the b ackup material to a point 10 inches above the floor with one band at the floor and one not more than 1 inch from the end of the aluminum jacket.

3.2.1.2.3 Penetrating Waterproofed Floors

Extend the aluminum jacket rom below the backup mat erial to a point 2 inches above the flashing with a band 1 inch from the end of the aluminum jacket.

3.2.1.2.4 Penetrating Exterior Walls

Continue the aluminum jacket required for pipe expo sed to weather through the sleeve to a point 2 inches beyond the interior surface of the wall.

Section 23 07 00 Page 16

3.2.1.2.5 Penetrating Roofs

Insulate pipe as required for interior service to a point flush with the top of the flashing and sealed with flashing sealant. Tightly butt the insulation for exterior application to the top of f lashing and interior insulation. Extend the exterior aluminum jacket 2 inches down beyond the end of the insulation to form a counter flashing. Seal the flashing and counter flashing underneath with metal jacketing/fl ashing sealant.

3.2.1.2.6 Hot Water Pipes Supplying Lavatories or Other Similar Heated Service

Terminate the insulation on the backside of the fin ished wall. Protect the insulation termination with two coats of vapor barr ier coating with a minimum total thickness of 1/16 inch applied with glass tape embedded between coats (if applicable). Extend the coating out onto the insulation 2 inches and seal the end of the insulation. Overlap glass tape seams 1 inch .

Caulk the annular space between the pipe and wall p enetration with approved fire stop material. Cover the pipe and wall penetr ation with a properly sized (well fitting) escutcheon plate. The escutch eon plate shall overlap the wall penetration at least 3/8 inches .

3.2.1.2.7 Domestic Cold Water Pipes Supplying La vatories or Other Similar Cooling Service

Terminate the insulation on the finished side of th e wall (i.e., insulation must cover the pipe throughout the wall penetration ). Protect the insulation with two coats of weather barrier mastic (breather emulsion type weatherproof mastic impermeable to water and permea ble to air) with a minimum total thickness of 1/16 inch . Extend the mastic out onto the insulation 2 inches and shall seal the end of the insulation. The ann ular space between the outer surface of the pipe insulat ion and caulk the wall penetration with an approved fire stop material hav ing vapor retarder properties. Cover the pipe and wall penetration wi th a properly sized (well fitting) escutcheon plate. The escutcheon plate sh all overlap the wall penetration by at least 3/8 inches .

3.2.1.3 Pipes Passing Through Hangers

Insulation, whether hot or cold application, shall be continuous through hangers. All horizontal pipes 2 inches and smaller shall be supported on hangers with the addition of a Type 40 protection s hield to protect the insulation in accordance with MSS SP-69 . Whenever insulation shows signs of being compressed, or when the insulation or jacket shows visible signs of distortion at or near the support shield, insulatio n inserts as specified below for piping larger than 2 inches shall be installed, or factory insulated hangers (designed with a load bearing cor e) can be used.

3.2.1.3.1 Horizontal Pipes Larger Than 2 Inches at 60 Degrees F and Above

Supported on hangers in accordance with MSS SP-69 , and Section 22 00 00

PLUMBING, GENERAL PURPOSE.

3.2.1.3.2 Horizontal Pipes Larger Than 2 Inches and Below 60 Degrees F

Section 23 07 00 Page 17

Supported on hangers with the addition of a Type 40 protection shield in accordance with MSS SP-69 . An insulation insert of cellular glass, prefabricated insulation pipe hangers, or perlite a bove 80 degrees F shall be installed above each shield. The insert shall c over not less than the bottom 180-degree arc of the pipe. Inserts shall b e the same thickness as the insulation, and shall extend 2 inches on each end beyond the protection shield. When insulation inserts are required in ac cordance with the above, and the insulation thickness is less than 1 inch , wooden or cork dowels or blocks may be installed between the pipe and the sh ield to prevent the weight of the pipe from crushing the insulation, as an option to installing insulation inserts. The insulation jacket shall be continuous over the wooden dowel, wooden block, or insulation insert.

3.2.1.3.3 Vertical Pipes

Supported with either Type 8 or Type 42 riser clamp s with the addition of two Type 40 protection shields in accordance with MSS SP-69 covering the 360-degree arc of the insulation. An insulation in sert of cellular glass or calcium silicate shall be installed between each sh ield and the pipe. The insert shall cover the 360-degree arc of the pipe. Inserts shall be the same thickness as the insulation, and shall extend 2 inches on each end beyond the protection shield. When insulation inse rts are required in accordance with the above, and the insulation thick ness is less than 1 inch , wooden or cork dowels or blocks may be installed be tween the pipe and the shield to prevent the hanger from crushing the insu lation, as an option instead of installing insulation inserts. The insu lation jacket shall be continuous over the wooden dowel, wooden block, or insulation insert. The vertical weight of the pipe shall be supported with hangers located in a horizontal section of the pipe. When the pipe rise r is longer than 30 feet , the weight of the pipe shall be additionally suppor ted with hangers in the vertical run of the pipe that are directly clamped to the pipe, penetrating the pipe insulation. These hangers shall be insula ted and the insulation jacket sealed as indicated herein for anchors in a similar service.

3.2.1.3.4 Inserts

Covered with a jacket material of the same appearan ce and quality as the adjoining pipe insulation jacket, overlap the adjoi ning pipe jacket 1-1/2 inches , and seal as required for the pipe jacket. The ja cket material used to cover inserts in flexible elastomeric cellular i nsulation shall conform to ASTM C1136, Type 1, and is allowed to be of a different mater ial than the adjoining insulation material.

3.2.1.4 Flexible Elastomeric Cellular Pipe Insula tion

Flexible elastomeric cellular pipe insulation shall be tubular form for pipe sizes 6 inches and less. Grade 1, Type II sheet insulation used on pipes larger than 6 inches shall not be stretched around the pipe. On pipes larger than 12 inches , the insulation shall be adhered directly to the p ipe on the lower 1/3 of the pipe. Seams shall be stagg ered when applying multiple layers of insulation. Sweat fittings shal l be insulated with miter-cut pieces the same size as on adjacent pipin g. Screwed fittings shall be insulated with sleeved fitting covers fabr icated from miter-cut pieces and shall be overlapped and sealed to the ad jacent pipe insulation.

Type II requires an additional exterior vapor retar der/barrier covering for high relative humidity and below ambient temperatur e applications.

Section 23 07 00 Page 18

3.2.1.5 Pipes in high abuse areas.

In high abuse areas such as janitor closets and tra ffic areas in equipment rooms, kitchens, and mechanical rooms, stainless st eel, aluminum or flexible laminate cladding (comprised of elastomeric, plasti c or metal foil laminate) laminated self-adhesive (minimum 2 mils adhesive, 3 mils embossed) vapor barrier/weatherproofing jacket, - less than 0.0000 permeability; (greater than 3 ply, standard grade, silver, white, black an d embossed) aluminum jackets shall be utilized. Pipe insulation to the 6 foot level shall be protected.

3.2.1.6 Pipe Insulation Material and Thickness

Pipe insulation materials must be as listed in Tabl e 1 and must meet or exceed the requirements of ASHRAE 90.1 - IP .

TABLE 1

Insulation Material for Piping

Service

Material Specification Type Class VR/VB Req'd

Chilled Water (Supply & Return, Dual Temperature Pi ping, 40 F nominal)

Cellular Glass ASTM C552 II 2 Yes

Heating Hot Water Supply & Return, Heated Oil (Max 250 F)

Mineral Fiber ASTM C547 I 1 No

Flexible Elastomeric Cellular

ASTM C534/C534M I 2 No

Cold Domestic Water Piping, Makeup Water & Drinking Fountain Drain Piping

Flexible Elastomeric Cellular

ASTM C534/C534M I No

Hot Domestic Water Supply & Recirculating Piping (M ax 200 F)

Mineral Fiber ASTM C547 I 1 No

Flexible Elastomeric Cellular

ASTM C534/C534M I No

Refrigerant Suction Piping (35 degrees F nominal) Flexible Elastomeric

Cellular ASTM C534/C534M I No

Section 23 07 00 Page 19

TABLE 1

Insulation Material for Piping

Service

Material Specification Type Class VR/VB Req'd

Note: VR/VB = Vapor Retarder/Vapor Barrier

TABLE 2

Piping Insulation Thickness (inch) Do not use integral wicking material in Chilled wa ter applications exposed to outdoor ambient conditions in climatic zones 1 t hrough 4.

Service

Material Tube And Pipe Size (inch)

<1 1-<1.5 1.5-<4 4-<8 > or = >8

Chilled Water (Supply & Return, Dual Temperature Pi ping, 40 Degrees F nominal) Cellular Glass 1.5 2 2 2.5 3

Heating Hot Water Supply & Return, Heated Oil (Max 250 F)

Mineral Fiber 1.5 1.5 2 2 2

Flexible Elastomeric Cellular 1 1 1 N/A N/A

Cold Domestic Water Piping, Makeup Water & Drinking Fountain Drain Piping

Flexible Elastomeric Cellular 1 1 1 N/A N/A

Hot Domestic Water Supply & Recirculating Piping (M ax 200 F)

Mineral Fiber 1 1 1 1.5 1.5

Flexible Elastomeric Cellular 1 1 1 N/A N/A

Refrigerant Suction Piping (35 degrees F nominal)

Flexible Elastomeric Cellular 1 1 1 N/A N/A

Section 23 07 00 Page 20

TABLE 2

Piping Insulation Thickness (inch) Do not use integral wicking material in Chilled wa ter applications exposed to outdoor ambient conditions in climatic zones 1 t hrough 4.

Service

Material Tube And Pipe Size (inch)

<1 1-<1.5 1.5-<4 4-<8 > or = >8

Condensate Drain Located Inside Building

Flexible Elastomeric Cellular 1 1 1 N/A N/A

3.2.2 Aboveground Cold Pipelines

The following cold pipelines for minus 30 to plus 60 degrees F , shall be insulated in accordance with Table 2 except those p iping listed in subparagraph Pipe Insulation in PART 3 as to be omi tted. This includes but is not limited to the following:

a. Make-up water.

b. Horizontal and vertical portions of interior ro of drains.

c. Refrigerant suction lines.

d. Chilled water.

f. Air conditioner condensate drains.

3.2.2.1 Insulation Material and Thickness

Insulation thickness for cold pipelines shall be de termined using Table 2.

3.2.2.2 Factory or Field applied Jacket

Insulation shall be covered with a factory applied vapor retarder jacket/vapor barrier or field applied seal welded P VC jacket or greater than 3 ply laminated self-adhesive (minimum 2 mils adhesive, 3 mils embossed) vapor barrier/weatherproofing jacket - less than 0. 0000 permeability, standard grade, sliver, white, black and embossed f or use with Mineral Fiber, Cellular Glass, and Phenolic Foam Insulated Pipe. Insulation inside

Section 23 07 00 Page 21 the building, to be protected with an aluminum jack et or greater than 3ply vapor barrier/weatherproofing self-adhesive (minimu m 2 mils adhesive, 3 mils embossed) product, less than 0.0000 permeability, standard grade, Embossed Silver, White & Black, shall have the insu lation and vapor retarder jacket installed as specified herein. The aluminum jacket or greater than 3ply vapor barrier/weatherproofing self-adhesive (m inimum 2 mils adhesive, 3 mils embossed) product, less than 0.0000 permeability, standard grade, embossed silver, White & Black, shall be installed as specified for piping exposed to weather, except sealing of the laps of t he aluminum jacket is not required. In high abuse areas such as janitor clos ets and traffic areas in equipment rooms, kitchens, and mechanical rooms, al uminum jackets or greater than 3ply vapor barrier/weatherproofing self-adhesi ve (minimum 2 mils adhesive, 3 mils embossed) product, less than 0.0000 permeability, standard grade, embossed silver, white & black, shall be pro vided for pipe insulation to the 6 ft level.

3.2.2.3 Installing Insulation for Straight Runs H ot and Cold Pipe

Apply insulation to the pipe with tight butt joints . Seal all butted joints and ends with joint sealant and seal with a vapor r etarder coating, greater than 3 ply laminate jacket - less than 0.0000 perm adhesive tape or PVDC adhesive tape.

3.2.2.3.1 Longitudinal Laps of the Jacket Materia l

Overlap not less than 1-1/2 inches . Provide butt strips 3 inches wide for circumferential joints.

3.2.2.3.2 Laps and Butt Strips

Secure with adhesive and staple on 4 inch centers if not factory self-sealing. If staples are used, seal in accordance w ith paragraph STAPLES below. Note that staples are not required with cel lular glass systems.

3.2.2.3.3 Factory Self-Sealing Lap Systems

May be used when the ambient temperature is between 40 and 120 degrees F during installation. Install the lap system in acc ordance with manufacturer's recommendations. Use a stapler only if specifically recommended by the manufacturer. Where gaps occur, replace the section or repair the gap by applying adhesive under the lap a nd then stapling.

3.2.2.3.4 Staples

Coat all staples, including those used to repair fa ctory self-seal lap systems, with a vapor retarder coating or PVDC adhe sive tape or greater than 3 ply laminate jacket - less than 0.0000 perm adhes ive tape. Coat all seams, except those on factory self-seal systems, w ith vapor retarder coating or PVDC adhesive tape or greater than 3 ply laminate jacket - less than 0.0000 perm adhesive tape.

3.2.2.3.5 Breaks and Punctures in the Jacket Mate rial

Patch by wrapping a strip of jacket material around the pipe and secure it with adhesive, staple, and coat with vapor retarder coating or PVDC adhesive tape or greater than 3 ply laminate jacket - less t han 0.0000 perm adhesive tape. Extend the patch not less than 1-1/2 inches past the break.

Section 23 07 00 Page 22

3.2.2.3.6 Penetrations Such as Thermometers

Fill the voids in the insulation and seal with vapo r retarder coating or PVDC adhesive tape or greater than 3 ply laminate j acket - less than 0.0000 perm adhesive tape.

3.2.2.3.7 Flexible Elastomeric Cellular Pipe Insu lation

Install by slitting the tubular sections and applyi ng them onto the piping or tubing. Alternately, whenever possible slide un -slit sections over the open ends of piping or tubing. Secure all seams an d butt joints and seal with adhesive. When using self seal products only the butt joints shall be secured with adhesive. Push insulation on the pipe , never pulled.

Stretching of insulation may result in open seams a nd joints. Clean cut all edges. Rough or jagged edges of the insulation are not be permitted. Use proper tools such as sharp knives. Do not stretch Grade 1, Type II sheet insulation around the pipe when used on pipe larger than 6 inches . On pipes larger than 12 inches , adhere sheet insulation directly to the pipe on t he lower 1/3 of the pipe.

3.2.2.4 Insulation for Fittings and Accessories

a. Pipe insulation shall be tightly butted to the insulation of the fittings and accessories. The butted joints and en ds shall be sealed with joint sealant and sealed with a vapor retarder coating or PVDC adhesive tape or greater than 3 ply laminate jacket - less than 0.0000 perm adhesive tape.

b. Precut or preformed insulation shall be placed around all fittings and accessories and shall conform to MICA plates except as modified herein:

5 for anchors; 10, 11, and 13 for fittings; 14 for valves; and 17 for flanges and unions. Insulation shall be the same i nsulation as the pipe insulation, including same density, thickness, and thermal conductivity. Where precut/preformed is unavailabl e, rigid preformed pipe insulation sections may be segmented into the shape required.

Insulation of the same thickness and conductivity a s the adjoining pipe insulation shall be used. If nesting size insulati on is used, the insulation shall be overlapped 2 inches or one pipe diameter. Elbows insulated using segments shall conform to MICA Tabl es 12.20 "Mitered Insulation Elbow'.