HomeMy WebLinkAbout23 07 19 - HVAC Piping InsulationBEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 1 OF 18
NOVEMBER 2, 2012
SECTION 230719 HVAC PIPING INSULATION
PART 1 GENERAL
1.1 SUBMITTALS
A. Product Data: Provide for each type of product indicated. Include thermal
conductivity, water3vapor permeance thickness, and jackets (both factory and
field applied if any).
1.2 QUALITY ASSURANCE
A. Installer Qualifications: Skilled mechanics who have successfully completed
an apprenticeship program or another craft training program certified by the
Department of Labor, Bureau of Apprenticeship and Training.
B. Surface3Burning Characteristics: For insulation and related materials, as
determined by testing identical products according to ASTM E 84, by a
testing and inspecting agency acceptable to authorities having jurisdiction.
Factory label insulation and jacket materials and adhesive, mastic, tapes, and
cement material containers, with appropriate markings of applicable testing
agency.
1. Insulation Installed Indoors: Flame3spread index of 25 or less, and
smoke3developed index of 50 or less.
2. Insulation Installed Outdoors: Flame3spread index of 75 or less, and
smoke3developed index of 150 or less.
1.3 DELIVERY, STORAGE, AND HANDLING
A. Packaging: Insulation material containers shall be marked by manufacturer
with appropriate ASTM standard designation, type and grade, and maximum
use temperature.
1.4 COORDINATION
A. Coordinate sizes and locations of supports, hangers, and insulation shields.
B. Coordinate clearance requirements with piping Installer for piping insulation
application.
PART 2 PRODUCTS
2.1 INSULATION MATERIALS
A. Comply with requirements in "Piping Insulation Schedule, General," "Indoor
Piping Insulation Schedule," "Outdoor, Aboveground Piping Insulation
Schedule," articles for where insulating materials shall be applied.
B. Products shall not contain asbestos, lead, mercury, or mercury compounds.
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CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 2 OF 18
NOVEMBER 2, 2012
C. Products that come in contact with stainless steel shall have a leachable
chloride content of less than 50 ppm when tested according to ASTM C 871.
D. Insulation materials for use on austenitic stainless steel shall be qualified as
acceptable according to ASTM C 795.
E. Foam insulation materials shall not use CFC or HCFC blowing agents in the
manufacturing process.
F. Cellular Glass: Inorganic, incombustible, foamed or cellulated glass with
annealed, rigid, hermetically sealed cells. Factory3applied jacket
requirements are specified in "Factory3Applied Jackets" Article.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Pittsburgh Corning Corporation; Foamglas.
2. Block Insulation: ASTM C 552, Type I.
3. Special3Shaped Insulation: ASTM C 552, Type III.
4. Board Insulation: ASTM C 552, Type IV.
5. Preformed Pipe Insulation without Jacket: Comply with ASTM C 552,
Type II, Class 1.
6. Preformed Pipe Insulation with Factory3Applied ASJ: Comply with
ASTM C 552, Type II, Class 2.
7. Factory fabricate shapes according to ASTM C 450 and ASTM C 585.
G. Flexible Elastomeric Insulation: Closed3cell, sponge3 or expanded3rubber
materials. Comply with ASTM C 534, Type I for tubular materials.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Aeroflex USA, Inc.; Aerocel.
b. Armacell LLC; AP Armaflex.
c. K3Flex USA; Insul3Lock, Insul3Tube, and K3FLEX LS.
H. Mineral3Fiber, Preformed Pipe Insulation:
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Fibrex Insulations Inc.; Coreplus 1200.
b. Johns Manville; Micro3Lok.
c. Knauf Insulation; 10003Degree Pipe Insulation.
d. Manson Insulation Inc.; Alley3K.
e. Owens Corning; Fiberglas Pipe Insulation.
2. Type I, 850 deg F (454 deg C) Materials: Mineral or glass fibers bonded
with a thermosetting resin. Comply with ASTM C 547, Type I, Grade A,
with factory3applied ASJ. Factory3applied jacket requirements are
specified in "Factory3Applied Jackets" Article.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 3 OF 18
NOVEMBER 2, 2012
2.2 INSULATING CEMENTS
A. Mineral3Fiber Insulating Cement: Comply with ASTM C 195.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Ramco Insulation, Inc.; Super3Stik.
B. Expanded or Exfoliated Vermiculite Insulating Cement: Comply with
ASTM C 196.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Ramco Insulation, Inc.; Thermokote V.
C. Mineral3Fiber, Hydraulic3Setting Insulating and Finishing Cement: Comply
with ASTM C 449.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Ramco Insulation, Inc.; Ramcote 1200 and Quik3Cote.
2.3 ADHESIVES
A. Materials shall be compatible with insulation materials, jackets, and
substrates and for bonding insulation to itself and to surfaces to be insulated
unless otherwise indicated.
B. Cellular3Glass Adhesive: Two3component, thermosetting urethane adhesive
containing no flammable solvents, with a service temperature range of minus
100 to plus 200 deg F (minus 73 to plus 93 deg C).
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Foster Brand, Specialty Construction Brands, Inc., a business of H. B.
Fuller Company; 81384.
2. For indoor applications, use adhesive that has a VOC content of 50 g/L or
less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
3. Use adhesive that complies with the testing and product requirements of
the California Department of Health Services' "Standard Practice for the
Testing of Volatile Organic Emissions from Various Sources Using Small3
Scale Environmental Chambers," including 2004 Addenda.
C. Flexible Elastomeric Adhesive: Comply with MIL3A324179A, Type II, Class I.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Aeroflex USA, Inc.; Aeroseal.
b. Armacell LLC; Armaflex 520 Adhesive.
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CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 4 OF 18
NOVEMBER 2, 2012
c. Foster Brand, Specialty Construction Brands, Inc., a business of H. B.
Fuller Company; 85375.
d. K3Flex USA; R3373 Contact Adhesive.
2. For indoor applications, use adhesive that has a VOC content of 50 g/L or
less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
3. Use adhesive that complies with the testing and product requirements of
the California Department of Health Services' "Standard Practice for the
Testing of Volatile Organic Emissions from Various Sources Using Small3
Scale Environmental Chambers," including 2004 Addenda.
D. Mineral3Fiber Adhesive: Comply with MIL3A33316C, Class 2, Grade A.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Childers Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; CP3127.
b. Eagle Bridges 3 Marathon Industries; 225.
c. Foster Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; 85360/85370.
d. Mon3Eco Industries, Inc.; 22325.
2. For indoor applications, use adhesive that has a VOC content of 80 g/L or
less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
3. Use adhesive that complies with the testing and product requirements of
the California Department of Health Services' "Standard Practice for the
Testing of Volatile Organic Emissions from Various Sources Using Small3
Scale Environmental Chambers," including 2004 Addenda.
E. ASJ Adhesive, and FSK Jacket Adhesive: Comply with MIL3A33316C,
Class 2, Grade A for bonding insulation jacket lap seams and joints.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Childers Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; CP382.
b. Eagle Bridges 3 Marathon Industries; 225.
c. Foster Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; 85350.
d. Mon3Eco Industries, Inc.; 22325.
2. For indoor applications, use adhesive that has a VOC content of 50 g/L or
less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
3. Use adhesive that complies with the testing and product requirements of
the California Department of Health Services' "Standard Practice for the
Testing of Volatile Organic Emissions from Various Sources Using Small3
Scale Environmental Chambers," including 2004 Addenda.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 5 OF 18
NOVEMBER 2, 2012
2.4 MASTICS
A. Materials shall be compatible with insulation materials, jackets, and
substrates; comply with MIL3PRF319565C, Type II.
1. For indoor applications, use mastics that have a VOC content of 50 g/L or
less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
B. Vapor3Barrier Mastic: Water based; suitable for indoor use on below3ambient
services.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Foster Brand, Specialty Construction Brands, Inc., a business of H. B.
Fuller Company; 30380/30390.
b. Vimasco Corporation; 749.
2. Water3Vapor Permeance: ASTM E 96/E 96M, Procedure B, 0.013 perm
(0.009 metric perm) at 433mil (1.093mm) dry film thickness.
3. Service Temperature Range: Minus 20 to plus 180 deg F (Minus 29 to
plus 82 deg C).
4. Solids Content: ASTM D 1644, 58 percent by volume and 70 percent by
weight.
5. Color: White.
2.5 LAGGING ADHESIVES
A. Description: Comply with MIL3A33316C, Class I, Grade A and shall be
compatible with insulation materials, jackets, and substrates.
1. For indoor applications, use lagging adhesives that have a VOC content of
50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
2. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Childers Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; CP350 AHV2.
b. Foster Brand, Specialty Construction Brands, Inc., a business of H. B.
Fuller Company; 30336.
c. Vimasco Corporation; 713 and 714.
3. Fire3resistant, water3based lagging adhesive and coating for use indoors
to adhere fire3resistant lagging cloths over pipe insulation.
4. Service Temperature Range: 0 to plus 180 deg F (Minus 18 to plus 82
deg C).
5. Color: White.
2.6 SEALANTS
A. Joint Sealants:
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CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 6 OF 18
NOVEMBER 2, 2012
1. Joint Sealants for Cellular3Glass Products, Subject to compliance with
requirements, available products that may be incorporated into the Work
include, but are not limited to, the following:
a. Childers Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; CP376.
b. Eagle Bridges 3 Marathon Industries; 405.
c. Foster Brand, Specialty Construction Brands, Inc., a business of H. B.
Fuller Company; 30345.
d. Mon3Eco Industries, Inc.; 44305.
e. Pittsburgh Corning Corporation; Pittseal 444.
B. FSK and Metal Jacket Flashing Sealants:
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Childers Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; CP376.
b. Eagle Bridges 3 Marathon Industries; 405.
c. Foster Brand, Specialty Construction Brands, Inc., a business of H. B.
Fuller Company; 95344.
d. Mon3Eco Industries, Inc.; 44305.
2. Materials shall be compatible with insulation materials, jackets, and
substrates.
3. Fire3 and water3resistant, flexible, elastomeric sealant.
4. Service Temperature Range: Minus 40 to plus 250 deg F (Minus 40 to
plus 121 deg C).
5. Color: Aluminum.
6. For indoor applications, use sealants that have a VOC content of 420 g/L
or less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
7. Use sealants that comply with the testing and product requirements of the
California Department of Health Services' "Standard Practice for the
Testing of Volatile Organic Emissions from Various Sources Using Small3
Scale Environmental Chambers," including 2004 Addenda.
C. ASJ Flashing Sealants, and Vinyl, PVDC, and PVC Jacket Flashing Sealants:
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Childers Brand, Specialty Construction Brands, Inc., a business of H.
B. Fuller Company; CP376.
2. Materials shall be compatible with insulation materials, jackets, and
substrates.
3. Fire3 and water3resistant, flexible, elastomeric sealant.
4. Service Temperature Range: Minus 40 to plus 250 deg F (Minus 40 to
plus 121 deg C).
5. Color: White.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 7 OF 18
NOVEMBER 2, 2012
6. For indoor applications, use sealants that have a VOC content of 420 g/L
or less when calculated according to 40 CFR 59, Subpart D (EPA
Method 24).
7. Use sealants that comply with the testing and product requirements of the
California Department of Health Services' "Standard Practice for the
Testing of Volatile Organic Emissions from Various Sources Using Small3
Scale Environmental Chambers," including 2004 Addenda.
2.7 FACTORY3APPLIED JACKETS
A. Insulation system schedules indicate factory3applied jackets on various
applications. When factory3applied jackets are indicated, comply with the
following:
1. ASJ: White, kraft3paper, fiberglass3reinforced scrim with aluminum3foil
backing; complying with ASTM C 1136, Type I.
2. FSK Jacket: Aluminum3foil, fiberglass3reinforced scrim with kraft3paper
backing; complying with ASTM C 1136, Type II.
2.8 FIELD3APPLIED JACKETS
A. Field3applied jackets shall comply with ASTM C 921, Type I, unless otherwise
indicated.
B. FSK Jacket: Aluminum3foil3face, fiberglass3reinforced scrim with kraft3paper
backing.
C. PVC Jacket: High3impact3resistant, UV3resistant PVC complying with
ASTM D 1784, Class 163543C; thickness as scheduled; roll stock ready for
shop or field cutting and forming. Thickness is indicated in field3applied
jacket schedules.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Johns Manville; Zeston.
b. P.I.C. Plastics, Inc.; FG Series.
c. Proto Corporation; LoSmoke.
d. Speedline Corporation; SmokeSafe.
2. Adhesive: As recommended by jacket material manufacturer.
3. Color: White.
4. Factory3fabricated fitting covers to match jacket if available; otherwise,
field fabricate.
a. Shapes: 453 and 903degree, short3 and long3radius elbows, tees,
valves, flanges, unions, reducers, end caps, soil3pipe hubs, traps,
mechanical joints, and P3trap and supply covers for lavatories.
D. Self3Adhesive Outdoor Jacket: 603mil3 (1.53mm3) thick, laminated vapor
barrier and waterproofing membrane for installation over insulation located
aboveground outdoors; consisting of a rubberized bituminous resin on a
crosslaminated polyethylene film covered with white aluminum3foil facing.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 8 OF 18
NOVEMBER 2, 2012
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. Polyguard Products, Inc.; Alumaguard 60.
2.9 TAPES
A. ASJ Tape: White vapor3retarder tape matching factory3applied jacket with
acrylic adhesive, complying with ASTM C 1136.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. ABI, Ideal Tape Division; 428 AWF ASJ.
b. Avery Dennison Corporation, Specialty Tapes Division; Fasson 0836.
c. Compac Corporation; 104 and 105.
d. Venture Tape; 1540 CW Plus, 1542 CW Plus, and 1542 CW Plus/SQ.
2. Width: 3 inches (75 mm).
3. Thickness: 11.5 mils (0.29 mm).
4. Adhesion: 90 ounces force/inch (1.0 N/mm) in width.
5. Elongation: 2 percent.
6. Tensile Strength: 40 lbf/inch (7.2 N/mm) in width.
7. ASJ Tape Disks and Squares: Precut disks or squares of ASJ tape.
B. FSK Tape: Foil3face, vapor3retarder tape matching factory3applied jacket
with acrylic adhesive; complying with ASTM C 1136.
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. ABI, Ideal Tape Division; 491 AWF FSK.
b. Avery Dennison Corporation, Specialty Tapes Division; Fasson 0827.
c. Compac Corporation; 110 and 111.
d. Venture Tape; 1525 CW NT, 1528 CW, and 1528 CW/SQ.
2. Width: 3 inches (75 mm).
3. Thickness: 6.5 mils (0.16 mm).
4. Adhesion: 90 ounces force/inch (1.0 N/mm) in width.
5. Elongation: 2 percent.
6. Tensile Strength: 40 lbf/inch (7.2 N/mm) in width.
7. FSK Tape Disks and Squares: Precut disks or squares of FSK tape.
2.10 SECUREMENTS
A. Bands:
1. Products: Subject to compliance with requirements, available products
that may be incorporated into the Work include, but are not limited to, the
following:
a. ITW Insulation Systems; Gerrard Strapping and Seals.
b. RPR Products, Inc.; Insul3Mate Strapping, Seals, and Springs.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 9 OF 18
NOVEMBER 2, 2012
2. Stainless Steel: ASTM A 167 or ASTM A 240/A 240M, Type 304; 0.015
inch (0.38 mm) thick, 1/2 inch (13 mm) wide with wing seal.
3. Aluminum: ASTM B 209 (ASTM B 209M), Alloy 3003, 3005, 3105, or
5005; Temper H314, 0.020 inch (0.51 mm) thick, 1/2 inch (13 mm) wide
with wing seal.
B. Staples: Outward3clinching insulation staples, nominal 3/43inch3 (193mm3)
wide, stainless steel or Monel.
PART 3 EXECUTION
3.1 EXAMINATION
A. Examine substrates and conditions for compliance with requirements for
installation tolerances and other conditions affecting performance of
insulation application.
1. Verify that systems to be insulated have been tested and are free of
defects.
2. Verify that surfaces to be insulated are clean and dry.
3. Proceed with installation only after unsatisfactory conditions have been
corrected.
3.2 PREPARATION
A. Surface Preparation: Clean and dry surfaces to receive insulation. Remove
materials that will adversely affect insulation application.
B. Surface Preparation: Clean and prepare surfaces to be insulated. Before
insulating, apply a corrosion coating to insulated surfaces as follows:
1. Carbon Steel: Coat carbon steel operating at a service temperature
between 32 and 300 deg F (0 and 149 deg C) with an epoxy coating.
Consult coating manufacturer for appropriate coating materials and
application methods for operating temperature range.
C. Coordinate insulation installation with the trade installing heat tracing.
Comply with requirements for heat tracing that apply to insulation.
D. Mix insulating cements with clean potable water; if insulating cements are to
be in contact with stainless3steel surfaces, use demineralized water.
3.3 GENERAL INSTALLATION REQUIREMENTS
A. Install insulation materials, accessories, and finishes with smooth, straight,
and even surfaces; free of voids throughout the length of piping including
fittings, valves, and specialties.
B. Install insulation materials, forms, vapor barriers or retarders, jackets, and
thicknesses required for each item of pipe system as specified in insulation
system schedules.
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CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 10 OF 18
NOVEMBER 2, 2012
C. Install accessories compatible with insulation materials and suitable for the
service. Install accessories that do not corrode, soften, or otherwise attack
insulation or jacket in either wet or dry state.
D. Install insulation with longitudinal seams at top and bottom of horizontal runs.
E. Install multiple layers of insulation with longitudinal and end seams
staggered.
F. Do not weld brackets, clips, or other attachment devices to piping, fittings,
and specialties.
G. Keep insulation materials dry during application and finishing.
H. Install insulation with tight longitudinal seams and end joints. Bond seams
and joints with adhesive recommended by insulation material manufacturer.
I. Install insulation with least number of joints practical.
J. Where vapor barrier is indicated, seal joints, seams, and penetrations in
insulation at hangers, supports, anchors, and other projections with vapor3
barrier mastic.
1. Install insulation continuously through hangers and around anchor
attachments.
2. For insulation application where vapor barriers are indicated, extend
insulation on anchor legs from point of attachment to supported item to
point of attachment to structure. Taper and seal ends at attachment to
structure with vapor3barrier mastic.
3. Install insert materials and install insulation to tightly join the insert. Seal
insulation to insulation inserts with adhesive or sealing compound
recommended by insulation material manufacturer.
4. Cover inserts with jacket material matching adjacent pipe insulation.
Install shields over jacket, arranged to protect jacket from tear or puncture
by hanger, support, and shield.
K. Apply adhesives, mastics, and sealants at manufacturer's recommended
coverage rate and wet and dry film thicknesses.
L. Install insulation with factory3applied jackets as follows:
1. Draw jacket tight and smooth.
2. Cover circumferential joints with 33inch3 (753mm3) wide strips, of same
material as insulation jacket. Secure strips with adhesive and outward
clinching staples along both edges of strip, spaced 4 inches (100 mm)
o.c.
3. Overlap jacket longitudinal seams at least 131/2 inches (38 mm). Install
insulation with longitudinal seams at bottom of pipe. Clean and dry
surface to receive self3sealing lap. Staple laps with outward clinching
staples along edge at 2 inches (50 mm) o.c.
a. For below3ambient services, apply vapor3barrier mastic over staples.
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CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 11 OF 18
NOVEMBER 2, 2012
4. Cover joints and seams with tape, according to insulation material
manufacturer's written instructions, to maintain vapor seal.
5. Where vapor barriers are indicated, apply vapor3barrier mastic on seams
and joints and at ends adjacent to pipe flanges and fittings.
M. Cut insulation in a manner to avoid compressing insulation more than 75
percent of its nominal thickness.
N. Finish installation with systems at operating conditions. Repair joint
separations and cracking due to thermal movement.
O. Repair damaged insulation facings by applying same facing material over
damaged areas. Extend patches at least 4 inches (100 mm) beyond
damaged areas. Adhere, staple, and seal patches similar to butt joints.
3.4 PENETRATIONS
A. Insulation Installation at Roof Penetrations: Install insulation continuously
through roof penetrations.
1. Seal penetrations with flashing sealant.
2. For applications requiring only indoor insulation, terminate insulation
above roof surface and seal with joint sealant. For applications requiring
indoor and outdoor insulation, install insulation for outdoor applications
tightly joined to indoor insulation ends. Seal joint with joint sealant.
3. Extend jacket of outdoor insulation outside roof flashing at least 2 inches
(50 mm) below top of roof flashing.
4. Seal jacket to roof flashing with flashing sealant.
B. Insulation Installation at Aboveground Exterior Wall Penetrations: Install
insulation continuously through wall penetrations.
1. Seal penetrations with flashing sealant.
2. For applications requiring only indoor insulation, terminate insulation
inside wall surface and seal with joint sealant. For applications requiring
indoor and outdoor insulation, install insulation for outdoor applications
tightly joined to indoor insulation ends. Seal joint with joint sealant.
3. Extend jacket of outdoor insulation outside wall flashing and overlap wall
flashing at least 2 inches (50 mm).
4. Seal jacket to wall flashing with flashing sealant.
C. Insulation Installation at Interior Wall and Partition Penetrations (That Are Not
Fire Rated): Install insulation continuously through walls and partitions.
D. Insulation Installation at Fire3Rated Wall and Partition Penetrations: Install
insulation continuously through penetrations of fire3rated walls and partitions.
E. Insulation Installation at Floor Penetrations:
1. Pipe: Install insulation continuously through floor penetrations.
2. Seal penetrations through fire3rated assemblies.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 12 OF 18
NOVEMBER 2, 2012
3.5 GENERAL PIPE INSULATION INSTALLATION
A. Requirements in this article generally apply to all insulation materials except
where more specific requirements are specified in various pipe insulation
material installation articles.
B. Insulation Installation on Fittings, Valves, Strainers, Flanges, and Unions:
1. Install insulation over fittings, valves, strainers, flanges, unions, and other
specialties with continuous thermal and vapor3retarder integrity unless
otherwise indicated.
2. Insulate pipe elbows using preformed fitting insulation or mitered fittings
made from same material and density as adjacent pipe insulation. Each
piece shall be butted tightly against adjoining piece and bonded with
adhesive. Fill joints, seams, voids, and irregular surfaces with insulating
cement finished to a smooth, hard, and uniform contour that is uniform
with adjoining pipe insulation.
3. Insulate tee fittings with preformed fitting insulation or sectional pipe
insulation of same material and thickness as used for adjacent pipe. Cut
sectional pipe insulation to fit. Butt each section closely to the next and
hold in place with tie wire. Bond pieces with adhesive.
4. Insulate valves using preformed fitting insulation or sectional pipe
insulation of same material, density, and thickness as used for adjacent
pipe. Overlap adjoining pipe insulation by not less than two times the
thickness of pipe insulation, or one pipe diameter, whichever is thicker.
For valves, insulate up to and including the bonnets, valve stuffing3box
studs, bolts, and nuts. Fill joints, seams, and irregular surfaces with
insulating cement.
5. Insulate strainers using preformed fitting insulation or sectional pipe
insulation of same material, density, and thickness as used for adjacent
pipe. Overlap adjoining pipe insulation by not less than two times the
thickness of pipe insulation, or one pipe diameter, whichever is thicker.
Fill joints, seams, and irregular surfaces with insulating cement. Insulate
strainers so strainer basket flange or plug can be easily removed and
replaced without damaging the insulation and jacket. Provide a removable
reusable insulation cover. For below3ambient services, provide a design
that maintains vapor barrier.
6. Insulate flanges and unions using a section of oversized preformed pipe
insulation. Overlap adjoining pipe insulation by not less than two times the
thickness of pipe insulation, or one pipe diameter, whichever is thicker.
7. Cover segmented insulated surfaces with a layer of finishing cement and
coat with a mastic. Install vapor3barrier mastic for below3ambient services
and a breather mastic for above3ambient services. Reinforce the mastic
with fabric3reinforcing mesh. Trowel the mastic to a smooth and well3
shaped contour.
8. For services not specified to receive a field3applied jacket except for
flexible elastomeric and polyolefin, install fitted PVC cover over elbows,
tees, strainers, valves, flanges, and unions. Terminate ends with PVC
end caps. Tape PVC covers to adjoining insulation facing using PVC
tape.
9. Stencil or label the outside insulation jacket of each union with the word
"union." Match size and color of pipe labels.
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CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 13 OF 18
NOVEMBER 2, 2012
C. Insulate instrument connections for thermometers, pressure gages, pressure
temperature taps, test connections, flow meters, sensors, switches, and
transmitters on insulated pipes. Shape insulation at these connections by
tapering it to and around the connection with insulating cement and finish with
finishing cement, mastic, and flashing sealant.
D. Install removable insulation covers at locations indicated. Installation shall
conform to the following:
1. Make removable flange and union insulation from sectional pipe insulation
of same thickness as that on adjoining pipe. Install same insulation jacket
as adjoining pipe insulation.
2. When flange and union covers are made from sectional pipe insulation,
extend insulation from flanges or union at least two times the insulation
thickness over adjacent pipe insulation on each side of flange or union.
Secure flange cover in place with stainless3steel or aluminum bands.
Select band material compatible with insulation and jacket.
3. Construct removable valve insulation covers in same manner as for
flanges, except divide the two3part section on the vertical center line of
valve body.
4. When covers are made from block insulation, make two halves, each
consisting of mitered blocks wired to stainless3steel fabric. Secure this
wire frame, with its attached insulation, to flanges with tie wire. Extend
insulation at least 2 inches (50 mm) over adjacent pipe insulation on each
side of valve. Fill space between flange or union cover and pipe insulation
with insulating cement. Finish cover assembly with insulating cement
applied in two coats. After first coat is dry, apply and trowel second coat
to a smooth finish.
5. Unless a PVC jacket is indicated in field3applied jacket schedules, finish
exposed surfaces with a metal jacket.
3.6 INSTALLATION OF CELLULAR3GLASS INSULATION
A. Insulation Installation on Straight Pipes and Tubes:
1. Secure each layer of insulation to pipe with wire or bands and tighten
bands without deforming insulation materials.
2. Where vapor barriers are indicated, seal longitudinal seams, end joints,
and protrusions with vapor3barrier mastic and joint sealant.
3. For insulation with factory3applied jackets on below3ambient services, do
not staple longitudinal tabs. Instead, secure tabs with additional adhesive
as recommended by insulation material manufacturer and seal with vapor3
barrier mastic and flashing sealant.
B. Insulation Installation on Pipe Flanges:
1. Install preformed pipe insulation to outer diameter of pipe flange.
2. Make width of insulation section same as overall width of flange and bolts,
plus twice the thickness of pipe insulation.
3. Fill voids between inner circumference of flange insulation and outer
circumference of adjacent straight pipe segments with cut sections of
cellular3glass block insulation of same thickness as pipe insulation.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 14 OF 18
NOVEMBER 2, 2012
4. Install jacket material with manufacturer's recommended adhesive,
overlap seams at least 1 inch (25 mm), and seal joints with flashing
sealant.
C. Insulation Installation on Pipe Fittings and Elbows:
1. Install preformed sections of same material as straight segments of pipe
insulation when available. Secure according to manufacturer's written
instructions.
2. When preformed sections of insulation are not available, install mitered
sections of cellular3glass insulation. Secure insulation materials with wire
or bands.
D. Insulation Installation on Valves and Pipe Specialties:
1. Install preformed sections of cellular3glass insulation to valve body.
2. Arrange insulation to permit access to packing and to allow valve
operation without disturbing insulation.
3. Install insulation to flanges as specified for flange insulation application.
3.7 INSTALLATION OF FLEXIBLE ELASTOMERIC INSULATION
A. Seal longitudinal seams and end joints with manufacturer's recommended
adhesive to eliminate openings in insulation that allow passage of air to
surface being insulated.
B. Insulation Installation on Pipe Flanges:
1. Install pipe insulation to outer diameter of pipe flange.
2. Make width of insulation section same as overall width of flange and bolts,
plus twice the thickness of pipe insulation.
3. Fill voids between inner circumference of flange insulation and outer
circumference of adjacent straight pipe segments with cut sections of
sheet insulation of same thickness as pipe insulation.
4. Secure insulation to flanges and seal seams with manufacturer's
recommended adhesive to eliminate openings in insulation that allow
passage of air to surface being insulated.
C. Insulation Installation on Pipe Fittings and Elbows:
1. Install mitered sections of pipe insulation.
2. Secure insulation materials and seal seams with manufacturer's
recommended adhesive to eliminate openings in insulation that allow
passage of air to surface being insulated.
D. Insulation Installation on Valves and Pipe Specialties:
1. Install preformed valve covers manufactured of same material as pipe
insulation when available.
2. When preformed valve covers are not available, install cut sections of pipe
and sheet insulation to valve body. Arrange insulation to permit access to
packing and to allow valve operation without disturbing insulation.
3. Install insulation to flanges as specified for flange insulation application.
4. Secure insulation to valves and specialties and seal seams with
manufacturer's recommended adhesive to eliminate openings in insulation
that allow passage of air to surface being insulated.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 15 OF 18
NOVEMBER 2, 2012
3.8 INSTALLATION OF MINERAL3FIBER INSULATION
A. Insulation Installation on Straight Pipes and Tubes:
1. Secure each layer of preformed pipe insulation to pipe with wire or bands
and tighten bands without deforming insulation materials.
2. Where vapor barriers are indicated, seal longitudinal seams, end joints,
and protrusions with vapor3barrier mastic and joint sealant.
3. For insulation with factory3applied jackets on below3ambient surfaces, do
not staple longitudinal tabs. Instead, secure tabs with additional adhesive
as recommended by insulation material manufacturer and seal with vapor3
barrier mastic and flashing sealant.
B. Insulation Installation on Pipe Flanges:
1. Install preformed pipe insulation to outer diameter of pipe flange.
2. Make width of insulation section same as overall width of flange and bolts,
plus twice the thickness of pipe insulation.
3. Fill voids between inner circumference of flange insulation and outer
circumference of adjacent straight pipe segments with mineral3fiber
blanket insulation.
4. Install jacket material with manufacturer's recommended adhesive,
overlap seams at least 1 inch (25 mm), and seal joints with flashing
sealant.
C. Insulation Installation on Pipe Fittings and Elbows:
1. Install preformed sections of same material as straight segments of pipe
insulation when available.
2. When preformed insulation elbows and fittings are not available, install
mitered sections of pipe insulation, to a thickness equal to adjoining pipe
insulation. Secure insulation materials with wire or bands.
D. Insulation Installation on Valves and Pipe Specialties:
1. Install preformed sections of same material as straight segments of pipe
insulation when available.
2. When preformed sections are not available, install mitered sections of pipe
insulation to valve body.
3. Arrange insulation to permit access to packing and to allow valve
operation without disturbing insulation.
4. Install insulation to flanges as specified for flange insulation application.
3.9 FIELD3APPLIED JACKET INSTALLATION
A. Where glass3cloth jackets are indicated, install directly over bare insulation or
insulation with factory3applied jackets.
1. Draw jacket smooth and tight to surface with 23inch (503mm) overlap at
seams and joints.
2. Embed glass cloth between two 0.0623inch3 (1.63mm3) thick coats of
lagging adhesive.
3. Completely encapsulate insulation with coating, leaving no exposed
insulation.
B. Where FSK jackets are indicated, install as follows:
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 16 OF 18
NOVEMBER 2, 2012
1. Draw jacket material smooth and tight.
2. Install lap or joint strips with same material as jacket.
3. Secure jacket to insulation with manufacturer's recommended adhesive.
4. Install jacket with 131/23inch (383mm) laps at longitudinal seams and 33
inch3 (753mm3) wide joint strips at end joints.
5. Seal openings, punctures, and breaks in vapor3retarder jackets and
exposed insulation with vapor3barrier mastic.
C. Where PVC jackets are indicated, install with 13inch (253mm) overlap at
longitudinal seams and end joints; for horizontal applications. Seal with
manufacturer's recommended adhesive.
1. Apply two continuous beads of adhesive to seams and joints, one bead
under lap and the finish bead along seam and joint edge.
D. Where metal jackets are indicated, install with 23inch (503mm) overlap at
longitudinal seams and end joints. Overlap longitudinal seams arranged to
shed water. Seal end joints with weatherproof sealant recommended by
insulation manufacturer. Secure jacket with stainless3steel bands 12 inches
(300 mm) o.c. and at end joints.
3.10 FINISHES
A. Pipe Insulation with ASJ, Glass3Cloth, or Other Paintable Jacket Material:
1. Flat Acrylic Finish: Two finish coats over a primer that is compatible with
jacket material and finish coat paint. Add fungicidal agent to render fabric
mildew proof.
a. Finish Coat Material: Interior, flat, latex3emulsion size.
B. Flexible Elastomeric Thermal Insulation: After adhesive has fully cured, apply
two coats of insulation manufacturer's recommended protective coating.
C. Color: Final color as selected by Architect. Vary first and second coats to
allow visual inspection of the completed Work.
D. Do not field paint aluminum or stainless3steel jackets.
3.11 PIPING INSULATION SCHEDULE, GENERAL
A. Acceptable preformed pipe and tubular insulation materials and thicknesses
are identified for each piping system and pipe size range. If more than one
material is listed for a piping system, selection from materials listed is
Contractor's option.
B. Items Not Insulated: Unless otherwise indicated, do not install insulation on
the following:
1. Drainage piping located in crawl spaces.
2. Underground piping.
3. Chrome3plated pipes and fittings unless there is a potential for personnel
injury.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 17 OF 18
NOVEMBER 2, 2012
3.12 INDOOR PIPING INSULATION SCHEDULE
A. Condensate and Equipment Drain Water below 60 Deg F (16 Deg C):
1. All Pipe Sizes: Insulation shall be one of the following:
a. Cellular Glass: 131/2 inches (38 mm) thick.
b. Flexible Elastomeric: 3/4 inch (19 mm) thick.
c. Mineral3Fiber, Preformed Pipe Insulation, Type I: 1/2 inch (13 mm)
thick.
B. Chilled Water, 40 Deg F (5 Deg C) and below:
1. NPS 3 (DN 80) and Smaller: Insulation shall be one of the following:
a. Cellular Glass: 2 inches (50 mm) thick.
2. NPS 4 (DN 100) to NPS 12 (DN 300): Insulation shall be one of the
following:
a. Cellular Glass: 2 inches (50 mm) thick.
b. Mineral3Fiber, Preformed Pipe, Type I, 2 inches (50 mm) thick.
C. Chilled Water above 40 Deg F (5 Deg C):
1. NPS 12 (DN 300) and Smaller: Insulation shall be one of the following:
a. Cellular Glass: 131/2 inches (38 mm) thick.
b. Flexible Elastomeric: 1 inch (25 mm) thick.
c. Mineral3Fiber, Preformed Pipe, Type I: 131/2 inches (38 mm) thick.
D. Refrigerant Suction and Liquid Piping:
1. All Pipe Sizes: Insulation shall be one of the following:
a. Cellular Glass: 131/2 inches (38 mm) thick.
b. Flexible Elastomeric: 1 inch (25 mm) thick.
c. Mineral3Fiber, Preformed Pipe Insulation, Type I: 1 inch (25 mm)
thick.
E. Refrigerant Suction and Liquid Flexible Tubing:
1. All Pipe Sizes: Insulation shall be the following:
a. Flexible Elastomeric: 1 inch (25 mm) thick.
3.13 OUTDOOR, ABOVEGROUND PIPING INSULATION SCHEDULE
A. Chilled Water:
1. All Pipe Sizes: Insulation shall be one of the following:
a. Cellular Glass: 3 inches (75 mm) thick.
b. Flexible Elastomeric: 3 inches (75 mm) thick.
c. Mineral3Fiber, Preformed Pipe Insulation, Type I: 3 inches (75 mm)
thick.
B. Refrigerant Suction and Liquid Piping:
1. All Pipe Sizes: Insulation shall be one of the following:
a. Cellular Glass: 2 inches (50 mm) thick.
b. Flexible Elastomeric: 2 inches (50 mm) thick.
c. Mineral3Fiber, Preformed Pipe Insulation, Type I: 2 inches (50 mm)
thick.
BEARDSLEY DESIGN ASSOCIATES
CORNELL – NCP HVAC PIPING INSULATION
STANDARD SPECIFICATIONS 23 07 19 – PAGE 18 OF 18
NOVEMBER 2, 2012
C. Refrigerant Suction and Liquid Flexible Tubing:
1. All Pipe Sizes: Insulation shall be the following:
a. Flexible Elastomeric: 2 inches (50 mm) thick.
3.14 INDOOR, FIELD3APPLIED JACKET SCHEDULE
A. Install jacket over insulation material. For insulation with factory3applied
jacket, install the field3applied jacket over the factory3applied jacket.
B. If more than one material is listed, selection from materials listed is
Contractor's option.
C. Piping, Concealed:
1. PVC: 20 mils (0.5 mm) thick.
2. Aluminum, Smooth: 0.020 inch (0.51 mm) thick.
D. Piping, Exposed:
1. PVC: 20 mils (0.5 mm) thick.
3.15 OUTDOOR, FIELD3APPLIED JACKET SCHEDULE
A. Install jacket over insulation material. For insulation with factory3applied
jacket, install the field3applied jacket over the factory3applied jacket.
B. If more than one material is listed, selection from materials listed is
Contractor's option.
C. Piping, Concealed:
1. PVC: 30 mils (0.8 mm) thick.
2. Aluminum, Smooth: 0.032 inch (0.81 mm) thick.
D. Piping, Exposed:
1. PVC: 30 mils (0.8 mm) thick.
2. Painted Aluminum, Smooth with Z3Shaped Locking Seam: 0.032 inch
(0.81 mm) thick.
END OF SECTION 230719