220700.pdf

DCFT #082207

Hanson #03S1408GGB

220700-1 220700

PLUMBING INSULATION

DIVISION 22 – PLUMBING

SECTION 220700 – PLUMBING INSULATION

PART 1 - GENERAL

1.1 WORK INCLUDES

A. Base Bid:

1. Plumbing Contractor Provide:

a. Insulation for Domestic Water Piping.

1.2 RELATED WORK

A. Specified elsewhere:

1. 220523 - General Duty Valves for Plumbing Piping.

2. 221116 – Domestic Water Piping.

3. 221119 - Domestic Water Piping Specialties.

4. 224000 - Plumbing Fixtures.

1.3 SYSTEM DESCRIPTION

A. Definitions:

1. Hot Surfaces: Normal operating temperatures of 100°F (37.8°C). or higher.

2. Dual-Temperature Surfaces: Normal operating temperatures that vary from hot to cold.

3. Cold Surfaces: Normal operating temperatures less than 75°F (23.9°C).

4. Thermal Resistivity: “R values” represent the reciprocal of thermal conductivity (k-value). Thermal conductivity is the rate of heat flow through a homogenous material exactly 1 in. (25.4 mm) thick. Thermal resistivities are express by the temperature difference in °F. between two (2) exposed faces required to cause one Btu to flow through 1 sq. ft of material, in one hour, at a given mean temperature.

5. Density: Is expressed in lb./cu. ft.

1.4 QUALITY ASSURANCE

A. Fire Performance Characteristics: Conform to the following characteristics for insulation including facings, cements, and adhesives, when tested according to ASTM E 84, by UL or other testing or inspecting organization acceptable to the authority having jurisdiction. Label insulation with appropriate markings of testing laboratory:

1. Interior Insulation: Flame spread rating of twenty-five (25) or less and a smoke developed rating of fifty (50) or less.

220700-2 220700

2. Exterior Insulation: Flame spread rating of seventy-five (75) or less and a smoke developed rating of one hundred fifty (150) or less.

1.5 SUBMITTALS

A. Submit in accordance with Section 013300.

B. Product Data:

1. Submit copies of insulation schedule for approval before ordering.

2. Manufacturer’s product data indicating description, location, type and size.

1.6 DELIVERY, STORAGE AND HANDLING

A. Deliver material to site in factory-fabricated containers with manufacturer’s stamp or label, showing fire and smoke hazard ratings of products.

B. Store material in original wrapping and protect from weather and construction traffic.

C. Protect against dirt, water, chemical and mechanical damage.

D. Remove damaged insulation from project site. Do not install.

1.7 SEQUENCING AND SCHEDULING: Schedule insulation application after testing of piping systems.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Subject to compliance with requirements, the following are provided as examples of manufacturers providing products with the salient characteristics to be found in the submitted product. Manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified:

1. Glass Fiber:

a. Certainteed Corporation.

b. Knauf Fiberglass GmbH.

c. Manville.

d. Owens-Corning Fiberglass Corporation.

e. USG Interiors, Inc. - Thermafiber Division.

2. Flexible Elastomeric Cellular:

a. Armstrong Work Industries, Inc. (Armaflex).

220700-3 220700

b. Halstead Industrial Products.

c. IMCOA.

d. Rubatex Corporation.

2.2 GLASS FIBER

A. Material: Inorganic glass fibers, bonded with a thermosetting resin.

B. Jacket: All-purpose, factory-applied, laminated glass-fiber-reinforced, flame-retardant kraft paper and aluminum foil having self-sealing tape.

C. Preformed Pipe Insulation: ASTM C 547.

D. Adhesive: Produced under the UL Classification and Follow-up Service:

1. Type: Non-flammable, solvent-based.

2. Service Temperature Range: Minus 20 (-28.9oC) to 850°F (454.4oC).

E. Vapor Barrier Coating: Waterproof coating recommended by insulation manufacturer for outside service.

F. Thermal Conductivity: 0.26 average maximum at 75°F (23.9oC).

2.3 FLEXIBLE ELASTOMERIC CELLULAR

A. Material: Flexible expanded closed-cell structure with smooth skin on both sides:

1. Tubular Materials: ASTM C 534, Type I.

2. Sheet Materials: ASTM C 534, Type II.

B. Thermal Conductivity: 0.24 average maximum at 75°F (23.9oC).

C. Service Temperature: minus 40°F (-4.4oC) to 220°F (104.4oC).

D. Coating: Water based latex enamel coating recommended by insulation manufacturer.

2.4 ADHESIVES

A. Flexible Elastomeric Cellular Insulation Adhesive: Solvent-based, contact adhesive recommended by insulation manufacturer.

B. Lagging Adhesive: MIL-A-3316C, non-flammable adhesive in the following Classes and

Grades:

1. Class 1, Grade A for bonding glass cloth and tape to unfaced glass fiber insulation, sealing edges of glass fiber insulation, and bonding lagging cloth to unfaced glass fiber insulation.

2. Class 2, Grade A for bonding glass fiber insulation to metal surfaces.

220700-4 220700

2.5 JACKETS

A. General: ASTM C 921, Type 1, except as otherwise indicated.

B. Foil and Paper Jacket: Laminated glass-fiber-reinforced, flame-retardant kraft paper and aluminum foil:

1. Water Vapor Permeance: 0.02 perm maximum, when tested according to TM E 96.

2. Puncture Resistance: 50 beach units minimum, when tested according to ASTM D 781.

C. Aluminum Jacket: ASTM B 209, 3003 Alloy, H-14 temper, factory cut and rolled to indicated sizes.

2.6 HANDICAP LAVATORY INSULATION JACKET

A. Insulation System: Factory-fabricated fitting covers manufactured from high-impact, ultraviolet-resistant PVC; provide pre-molded fittings to completely cover tail-piece, P-trap, trap arm, hot and cold water supply stop valves and exposed supply tubing; include nylon fasteners for all fittings.

B. Install at all handicap accessible lavatories and sinks installed in this project.

C. Acceptable Manufacturers:

1. Truebro, Inc.: Handi Lav-Guard.

2. Brocar Products, Inc.: Trap Wrap.

3. Dearborn Brass: Cover Traps.

2.7 ACCESSORIES AND ATTACHMENTS

A. Bands: 3/4 in. wide, in one of the following materials compatible with jacket:

1. Stainless Steel: Type 304, 0.02 in. (0.5 mm) thick.

2. Galvanized Steel: 0.005 in. (0.1 mm) thick.

3. Aluminum: 0.007 in. (0.2 mm) thick.

4. Brass: 0.01 in. (0.3 mm) thick.

5. Nickel-Copper Alloy: 0.005 in. (0.1 mm) thick.

B. Wire: 14-gage nickel copper alloy, 16-gauge, soft-annealed stainless steel, or 16 gauge, soft-annealed galvanized steel.

C. Corner Angles: 28 gauge, 1 in. (25.4 mm) by 1 in. (25.4 mm) aluminum, adhered to 2 in. (50.8

mm) by 2 in. (50.8 mm) kraft paper.

D. Anchor Pins: Capable of supporting 20 pounds (9.1 kg) each. Provide anchor pins and speed washers of sizes and diameters as recommended by the manufacturer for insulation type and thickness.

220700-5 220700

2.8 SEALING COMPOUNDS

A. Vapor Barrier Compound: Water-based, fire-resistive composition:

1. Water Vapor Permeance: 0.08 perm maximum.

2. Temperature Range: Minus 20 (-28.9oC) to 180°F (82.2oC).

B. Weatherproof Sealant: Flexible-elastomer-based, vapor-barrier sealant designed to seal metal joints:

1. Water Vapor Permeance: 0.02 perm maximum.

2. Temperature Range: Minus 50 (-45.6oC) to 250°F (112.11oC).

3. Color: Aluminum.

PART 3 - EXECUTION

3.1 PREPARATION

A. Surface Preparation: Clean, dry, and remove foreign materials such as rust, scale, and dirt.

B. Mix insulating cements with clean potable water. Mix insulating cements contacting stainless-steel surfaces with demineralized water.

1. Follow cement manufacturer’s printed instructions for mixing and portions.

3.2 INSTALLATION, GENERAL

A. Refer to schedules at the end of this Section for materials, forms, jackets, and thickness required for each plumbing system.

B. Select accessories compatible with materials suitable for the service. Select accessories that do not corrode, soften, or otherwise attack the insulation or jacket in either the wet or dry state.

C. Apply insulation material, accessories, and finishes according to the manufacturer’s printed instructions.

D. Install insulation with smooth, straight, and even surfaces.

E. Seal joints and seams to maintain vapor barrier on insulation requiring a vapor barrier.

F. Seal penetrations for hangers, supports, anchors, and other projections in insulation requiring a vapor barrier.

G. Seal Ends: Except for flexible elastomeric insulation, taper ends at 45 degree angle and seal with lagging adhesive. Cut ends of flexible elastomeric cellular insulation square and seal with adhesive.

H. Apply adhesives and coatings at manufacturer’s recommended coverage-per-gallon rate.

220700-6 220700

I. Keep insulation materials dry during application and finishing.

J. Perform work at ambient and equipment temperatures recommended by adhesive manufacturer.

K. Items Not Insulated: Unless otherwise indicated, do not apply insulation to the following systems, materials, and equipment:

1. Domestic hot water circulation pumps.

2. Testing laboratory labels and stamps.

3. Nameplates and data plates.

4. Sanitary drainage and vent piping.

5. Drainage piping located in crawl spaces, unless indicated otherwise.

6. Below grade piping, unless otherwise indicated.

7. Chrome-plated pipes and fittings, except for plumbing fixtures for the disabled.

8. Piping specialties including air chambers, unions, check valves, plug valves, and flow regulators.

3.3 PIPE INSULATION INSTALLATION, GENERAL

A. Tightly butt longitudinal seams and end joints. Bond with adhesive.

B. Stagger joints on double layers of insulation.

C. Apply insulation continuously over fittings, valves, and specialties, as follows:

1. All fittings and valves smaller than 4 in. (101.6 mm) shall be insulated with fiberglass wool wrapped and packed to fill the entire fitting space, even with the level of the adjoining insulation.

2. All fittings and valves equal in size or larger than 4 in. (101.6 mm) shall be insulated with mitered sections of the sectional pipe insulation glued together with fiberglass adhesive.

D. Apply insulation with a minimum number of joints.

E. Apply insulation with integral jackets as follows:

1. Pull jacket tight and smooth.

2. Cover circumferential joints with butt strips, at least 3 in. (76.2 mm) wide, and of same material as insulation jacket. Secure with adhesive and outward clining staples along both edges of butt strip and spaced 4 in. (101.6 mm) on center.

3. Longitudinal Seams: Overlap seams at least 1-1/2 in. (38.1 mm). Apply insulation with longitudinal seams at bottom of pipe. Clean and dry surface to receive self-sealing lap.

Staple laps with outward clining staples along edge at 4 in. (101.6 mm) on center.

4. Vapor Barrier Coatings: Where vapor barriers are indicated, apply on seams and joints, over staples, and at ends butt to flanges, unions, valves, and fittings.

5. At penetrations in jackets for thermometers and pressure gages, fill and seal voids with vapor barrier coating.

6. Repair damaged insulation jackets, except metal jacket, by applying jacket material around damaged jacket. Adhere, staple, and seal. Extend patch at least 2 in. (50.8 mm) in both directions beyond damaged insulation jacket and around the entire circumference of the pipe.

220700-7 220700

F. Interior Walls and Partitions Penetrations: Apply insulation continuously through walls and partitions. Apply an aluminum jacket with factory-applied moisture barrier over insulation.

Extend 2 in. (50.8 mm) from both surfaces of wall or partition. Secure aluminum jacket with metal bands at both ends. Seal ends of jacket with vapor barrier coating. Seal around penetration with joint sealer.

G. Floor Penetrations: Terminate insulation underside of floor assembly and at floor support at top of floor. Where insulation is subject to damage install an 18 in. (457.2 mm) high x 18 ga.

galvanized metal boot encircling the insulation.

H. Flanges, Fittings, and Valves - Interior Exposed and Concealed: Coat pipe insulation ends with vapor barrier coating. Apply premolded, precut, or field-fabricated segments of insulation around flanges, unions, valves, and fittings. Make joints tight. Bond with adhesive:

1. Use same material and thickness as adjacent pipe insulation.

2. Overlap nesting insulation by 2 in. (50.8 mm) or one (1) pipe diameter, which ever is greater.

3. Apply materials with adhesive, fill voids with mineral fiber insulating cement. Secure with wire or tape.

4. Insulate elbows and tees smaller than 3 in. (76.2 mm) pipe size with premolded insulation.

5. Insulate elbows and tees 3 in. (76.2 mm) and larger with premolded insulation or insulation material segments. Use at least three (3) segments for each elbow.

6. Cover insulation, except for metal jacketed insulation, with PVC fitting covers and seal circumferential joints with butt strips.

I. Hangers and Anchors: Apply insulation continuously through hangers and around anchor attachments. Install saddles, shields, and inserts as specified in Section 221116. For cold surface piping, extend insulation on anchor legs a minimum of 12 in. and taper and seal insulation ends:

1. Inserts and Shields: Cover hanger inserts and shields with jacket material matching adjacent pipe insulation.

3.4 GLASS FIBER PIPE INSULATION INSTALLATION

A. Bond insulation to pipe with lagging adhesive.

B. Seal exposed ends with lagging adhesive.

C. Seal seams and joints with vapor barrier compound.

3.5 FLEXIBLE ELASTOMERIC CELLULAR PIPE INSULATION INSTALLATION

A. Slip insulation on the pipe before making connections wherever possible. Seal joints with adhesive. Where the slip-on technique is not possible, cut one side longitudinally and apply to the pipe. Seal seams and joints with adhesive.

B. Valves, Fittings, and Flanges: Cut insulation segments from pipe or sheet insulation. Bond to valve, fitting, and flange and seal joints with adhesive:

220700-8 220700

1. Miter cut materials to cover soldered elbows and tees.

2. Fabricate sleeve fitting covers from flexible elastomeric cellular insulation for screwed valves, fittings, and specialties. Miter cut materials. Overlap adjoining pipe insulation.

3.6 FLEXIBLE ELASTOMERIC CELLULAR EQUIPMENT INSULATION INSTALLATION

A. Install sheets of the largest manageable size.

B. Apply full coverage of adhesive to the surfaces of the equipment and to the insulation.

C. Butt insulation joints firmly together and apply adhesive to insulation edges at joints.

3.7 JACKETS

A. Foil and Paper Jackets (FP): Install jackets drawn tight. Install lap or butt strips at joints with material same as jacket. Secure with adhesive. Install jackets with 1-1/2 in. (38.1 mm) laps at longitudinal joints and 3 in. (76.2 mm) wide butt strips at end joints:

1. Seal openings, punctures, and breaks in vapor barrier jackets and exposed insulation with vapor barrier compound.

B. Interior Exposed Insulation: Install continuous aluminum jacket to 10 ft (3.1 m) above finished floor.

C. Exterior Exposed Insulation: Install continuous aluminum jackets and seal all joints and seams with waterproof sealant.

D. Install metal jacket with 2 in. (50.8 mm) overlap longitudinal and butt joints. Overlap longitudinal joints to shed water. Seal butt joints with weatherproof sealant recommended by insulation manufacturer. Secure jacket with stainless steel draw bands 12 in. (304.8 mm) on center and at butt joints.

3.8 FINISHES: Flexible Elastomeric Cellular Insulation: After adhesive has fully cured, apply two

(2) coats of protective coating to exposed insulation.

3.9 APPLICATIONS

A. General: Materials and thicknesses are specified in schedules at the end of this Section.

B. Interior, Exposed Piping Systems: Unless otherwise indicated, insulate the following piping systems:

1. Domestic cold water.

2. Domestic hot water and tempered water.

3. Re-circulated hot water and tempered water.

4. Condensate Drain Piping.

C. Interior, Concealed Piping Systems: Unless otherwise indicated, insulate the following piping systems:

220700-9 220700

1. Domestic cold water.

2. Domestic hot water and tempered water.

3. Re-circulated hot water and tempered water.

4. Condensate Drain Piping.

3.10 PIPE INSULATION SCHEDULES

A. General: Abbreviations used in the following schedules include:

1. Pipe Sizes: NPS - Nominal Pipe Size.

B. Provide aluminum jacket for all exposed piping.

C. Provide vapor barrier for all domestic cold water piping.

220700-10 220700

INTERIOR DOMESTIC COLD WATER, HOT WATER, TEMPERED WATER AND

RE-CIRCULATED AND TEMPERED WATER, CONDENSATE DRAIN PIPING

PIPE VAPOR FIELD-

SIZES THICKNESS BARRIER APPLIED

(NPS) MATERIALS IN IN. REQUIRED JACKET

1/2 (12.7 mm)to 2 (50.8 mm) Glass Fiber 1 (25.4 mm) No* None Flexible Elastomeric 1 (25.4 mm) No* None

2-1/2 (63.5 mm) to 4 (101.6 mm) Glass Fiber 1-1/2 (38.1 mm) No* None Flexible Elastomeric 1-1/2 (38.1 mm) No* None

5 (127 mm) to 10 (254 mm) Glass Fiber 1-1/2 (38.1 mm) No* None Flexible Elastomeric 1-1/2 (38.1 mm) No* None

* Required on Domestic Cold Water.

END OF SECTION 020700