pip ineg1000 insulation design and type codes 1999-04

COMPLETE REVISIONApril 1999

Process Industry PracticesInsulation

PIP INEG1000Insulation Design and Type Codes

PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES

In an effort to minimize the cost of process industry facilities, this Practice hasbeen prepared from the technical requirements in the existing standards of majorindustrial users, contractors, or standards organizations. By harmonizing these technicalrequirements into a single set of Practices, administrative, application, and engineeringcosts to both the purchaser and the manufacturer should be reduced. While this Practiceis expected to incorporate the majority of requirements of most users, individualapplications may involve requirements that will be appended to and take precedence overthis Practice. Determinations concerning fitness for purpose and particular matters orapplication of the Practice to particular project or engineering situations should not bemade solely on information contained in these materials. The use of trade names fromtime to time should not be viewed as an expression of preference but rather recognized asnormal usage in the trade. Other brands having the same specifications are equallycorrect and may be substituted for those named. All practices or guidelines are intendedto be consistent with applicable laws and regulations including OSHA requirements. Tothe extent these practices or guidelines should conflict with OSHA or other applicablelaws or regulations, such laws or regulations must be followed. Consult an appropriateprofessional before applying or acting on any material contained in or suggested by thePractice.

Process Industry Practices (PIP), Construction Industry Institute, TheUniversity of Texas at Austin, 3208 Red River Street, Suite 300, Austin,Texas 78705. PIP member companies may copy this practice for their internaluse.

12/97 Issued

4/99 Complete Revision

Not printed with State funds

COMPLETE REVISIONApril 1999

Process Industry Practices Page 1 of 33

Process Industry PracticesInsulation

PIP INEG1000Insulation Design and Type Codes

Table of Contents

1. Introduction...........................................21.1 Purpose............................................21.2 Scope...............................................2

2. References.............................................22.1 Process Industry Practices (PIP).......22.2 Industry Codes and Standards..........2

3. Use of Insulation Type Codes ..............3

4. Insulation Type Codes..........................34.1 Hot Insulation Types.........................34.2 Cold Insulation Types........................44.3 Insulation Types For Traced and

Energy Transfer Jacketed Systems...54.4 AC - Acoustic Control Insulation........64.5 FP - Fire Protection Insulation...........6

5. Ranking of Insulation Materials ...........65.1 Insulation Materials...........................65.2 Ranking of Hot Insulation Material....75.3 Ranking of Cold Insulation Material...7

6. Thickness Tables ..................................86.1 Hot Insulation Thickness Tables........86.2 Cold Insulation Thickness Tables......8

Index of TablesHot Insulation Thickness Tables:INEG1001 - Thickness of Calcium Silicate Insulation for HCINEG1002 - Thickness of Calcium Silicate Insulation for PP

INEG1003 - Thickness of Calcium Silicate Insulation -Combined Table

INEG1004 - Thickness of Cellular Glass Insulation for HCINEG1005 - Thickness of Cellular Glass Insulation for PP

INEG1006 - Thickness of Cellular Glass Insulation -Combined Table

INEG1007 - Thickness of Fiberglass Insulation for HCINEG1008 - Thickness of Fiberglass Insulation for PPINEG1009 - Thickness of Fiberglass Insulation - Combined

TableINEG1010 - Thickness of Mineral Wool Fiber Insulation for

HCINEG1011 - Thickness of Mineral Wool Fiber Insulation for

PPINEG1012 - Thickness of Mineral Wool Fiber Insulation -

Combined TableINEG1013 - Thickness of Expanded Perlite Insulation for

HCINEG1014 - Thickness of Expanded Perlite Insulation for PPINEG1015 - Thickness of Expanded Perlite Insulation -

Combined TableINEG1016 - Thickness of Polyisocyanurate Insulation for

HCINEG1017 - Thickness of Polyisocyanurate Insulation for PPCold Insulation Thickness TablesINEG1051 - Thickness of Cellular Glass Insulation for CCINEG1052 - Thickness of Cellular Glass Insulation for CPINEG1053 - Thickness of Cellular Glass Insulation -

Combined TableINEG1054 - Thickness of Polyisocyanurate Insulation for

CCINEG1055 - Thickness of Polyisocyanurate Insulation for

CPINEG1056 - Thickness of Polyisocyanurate Insulation -

Combined Table

PIP INEG1000 COMPLETE REVISIONInsulation Design and Type Codes April 1999

Page 2 of 33 Process Industry Practices

1. Introduction

1.1 Purpose

The purpose of this Practice is to provide requirements for the design of insulationsystems.

1.2 Scope

1.2.1 This Practice covers the definitions and design requirements for types ofinsulation systems that are indicated by the type code on the Piping andInstrumentation Diagrams (P&IDs), data sheets, and other design documents.

1.2.2 Corrosion protection under insulation is not addressed in this Practice.

2. References

When adopted in this Practice, the latest edition of the following codes, standards,specifications and references in effect on the date of contract award shall be used, except asotherwise specified. Short titles will be used herein when appropriate.

2.1 Process Industry Practices (PIP)

PIP INSC1000 - Requirements for Cold Service Insulation Materials

PIP INSC2000 - Installation of Cold Service Insulation Systems

PIP INSH1000 - Requirements for Hot Service Insulation Materials

PIP INSH2000 - Installation of Hot Service Insulation Systems

2.2 Industry Codes and Standards

American Petroleum Institute (API)

API RP521 - Guide for Pressure-Relieving and Depressuring Systems

American Society of Testing and Materials (ASTM)

ASTM C533 - Standard Specification for Calcium Silicate Block and PipeThermal Insulation

ASTM C547 - Standard Specification for Mineral Fiber Pipe Insulation

ASTM C552 - Standard Specification for Cellular Glass Thermal Insulation

ASTM C591 - Standard Specification for Unfaced Preformed Rigid CellularPolyisocyanurate Thermal Insulation

ASTM C610 - Standard Specification for Molded Expanded Perlite Block andPipe Thermal Insulation

ASTM C680 - Standard Practice for Determination of Heat Gain or Loss andthe Surfaces Temperatures of Insulated Pipe and Equipment Systems by theUse of a Computer Program

COMPLETE REVISION PIP INEG1000April 1999 Insulation Design and Type Codes


North American Insulation Manufacturers Association (NAIMA)

3E PLUS Insulation Thickness Computer Program

3. Use of Insulation Type Codes

3.1 Insulation codes shall be used on P&IDs, data sheets, piping isometrics, and otherproject documents.

3.2 Insulation type codes consist of up to four characters. The first two of which aredefined in Section 4. The second two characters may be used to define additionalrequirements such as combination systems or special requirements.

4. Insulation Type Codes

4.1 Hot Insulation Types

4.1.1 HC - Heat Conservation Insulation

4.1.1.1 Heat conservation insulation shall be designated with the code HC.

4.1.1.2 The primary consideration for using heat conservation insulationshall be economics.

4.1.1.3 Design of heat conservation insulation shall be based on localaverage ambient climatic conditions and project economics.

4.1.1.4 Heat conservation insulation shall be used if normal operatingtemperature exceeds 140 F (60 C), unless loss of heat is desirable.

4.1.2 PS - Process Stability Insulation

4.1.2.1 Process stability insulation shall be designated with the code PS.

4.1.2.2 The primary consideration for using process stability insulationshall be control of process temperatures, including impact due tosudden changes in ambient conditions.

4.1.2.3 Design of process stability insulation shall be based on anticipatedextremes in ambient conditions.

4.1.3 PP - Personnel Protection Insulation

4.1.3.1 Personnel protection insulation shall be designated with the codePP.

4.1.3.2 The primary consideration for using personnel protection insulationshall be to limit the temperature of exposed surfaces.

4.1.3.3 Design of personnel protection insulation shall be based on summerdry bulb temperature and low wind velocity to reflect a worst casecondition.

4.1.3.4 Personnel protection insulation shall be used if normal temperatureof a surface exceeds 140 F (60 C) and if the surface is in an area



that is accessible to personnel. Accessible area is defined as an areain which personnel regularly perform duties other than maintenanceduring plant operation.

4.1.3.5 Personnel protection shall be provided to 7 feet (2.13 m) abovegrade or platforms and 3 feet (0.91 m) horizontally from theperiphery of platforms, walkways, or ladders.

4.1.3.6 Personnel protection shall consist of insulation, shields, guards orbarriers.

4.1.3.7 If corrosion under the insulation is a concern, or if heat loss isdesirable, use of fabricated shields/guards in lieu of insulationshould be considered.

4.1.4 PF - Prevention From Freezing Insulation

4.1.4.1 Freeze prevention insulation shall be designated with the code PF.

4.1.4.2 The primary consideration for the use of this category is protectionfrom freezing.

4.1.4.3 Design of prevention from freezing insulation shall be based onlocal climatic conditions.

4.1.4.4 Prevention from freezing insulation may be combined with othertypes of insulation.

4.2 Cold Insulation Types

4.2.1 CC - Cold Service Insulation

4.2.1.1 Cold service insulation shall be designated with the code CC.

4.2.1.2 The primary consideration for using cold service insulation shall bebased on maximum allowable heat gain.

4.2.1.3 The design of cold service insulation shall be based on control ofheat gain and limiting surface condensation when the operatingtemperature is below ambient.

4.2.1.4 Cold service insulation shall be sealed against atmospheric moistureintrusion and subsequent wetting/icing of the insulation. Sealingnormally involves special consideration for design of equipment andinsulation support details.

4.2.2 CP - Condensation Control Insulation

4.2.2.1 Condensation control insulation shall be designated with the codeCP.

4.2.2.2 The only consideration for use of condensation control insulationshall be control of external surface condensation.

4.2.2.3 Design of condensation control insulation shall be based on thenormal operating temperature and local climatic conditions. In some



humid climates it is impractical to prevent condensation 100% ofthe time.

4.2.2.4 Use of surface finishes to control surface emissivity may beconsidered to reduce insulation thickness.

4.3 Insulation Types For Traced and Energy Transfer Jacketed Systems

4.3.1 General Considerations

4.3.1.1 The primary consideration for using tracing or heat transferjacketing and associated insulation shall be control of processtemperatures.

4.3.1.2 Design of insulation shall be based on the operating temperature,heat transfer jacketing temperature, or the tracer temperature. Thesame insulation thickness as that for heat conservation (HC) or coldservice (CC), as appropriate, shall be used unless designoptimization dictates a different thickness.

4.3.1.3 Optimization of the tracer or heat transfer jacketing design andinsulation thickness shall be required when specified.

4.3.1.4 Oversize insulation shall be considered to accommodate tracer(s) orheat transfer jacketing.

4.3.1.5 Grooving of insulation to accommodate tracing will not be allowedunless specified by the Purchaser.

4.3.2 ET - Electric Traced

Electric tracing and associated insulation shall be designated with the codeET.

4.3.3 ST - Steam Traced

Steam tracing and associated insulation shall be designated with the code ST.

4.3.4 SJ - Steam Jacketed

Steam jacketing and associated insulation shall be designated with the codeSJ.

4.3.5 HT - Hot Fluid Traced

Hot fluid tracing (except steam) and associated insulation shall be designatedwith the code HT.

4.3.6 HJ - Hot Fluid Jacketed

Hot fluid jacketing and associated insulation shall be designated with the codeHJ.

4.3.7 CT - Chilled Fluid Traced

Chilled fluid tracing and associated insulation shall be designated with thecode CT.



4.3.8 CJ - Chilled Fluid Jacketed

Chilled fluid jacketing and associated insulation shall be designated with thecode CJ.

4.4 AC - Acoustic Control Insulation

4.4.1 Acoustic control insulation shall be designated with the code AC.

4.4.2 The primary consideration for use of acoustic control insulation shall becontrol of noise.

4.4.3 Normally, acoustic control insulation shall have a dedicated design for eachapplication.

4.4.4 Special consideration of insulation materials and jacketing is normallyrequired.

4.4.5 Acoustic control insulation may be combined with other types of insulation.

4.5 FP - Fire Protection Insulation

4.5.1 Fire protection insulation shall be designated with the code FP.

4.5.2 The primary consideration for use of fire protection insulation shall be controlof the rate of heat gain in a fire.

4.5.3 Design of fire protection insulation shall be based on maximum allowable heatgain, fire case characteristics, allowable time duration, and processcharacteristics. Refer to API RP521 for materials selection and design criteria.

4.5.4 Fire protection insulation may be combined with other types of insulation.

5. Ranking of Insulation Materials

5.1 Insulation Materials

5.1.1 Insulation materials have been ranked relative to each other in the tables inSections 5.2 and 5.3. Rankings are based on PIP member company consensus,with 1 being the best.

5.1.2 While the categories in which the materials are ranked are design criteria thatmay be important to a project, all possible design criteria cannot be included.This information is supplied to assist the designer in selecting the mostappropriate material type for a projects application. This Practice does notattempt to weigh the various design criteria because criteria vary from projectto project.



5.2 Ranking of Hot Insulation Material

Design Criteria (1 = Best)

InsulationMaterial

Temp.Range

FireProtection

MechanicalAbuse

AbsorptionInstalled

CostTracing Vibration

CalciumSilicate

Ambientto 1200 F(649 C)

1 1 6 4 5 4

CellularGlass


3 3 1 6 6 6

PerliteAmbient

to 1200 F(649 C)

2 2 2 5 2 5

MineralWool


4 5 4 3 3 1

GlassFiber


5 6 5 2 4 2

Polyiso-cyanurate


NR 4 3 1 1* 3

NR = Not Recommended * = Note Temperature Limit

5.3 Ranking of Cold Insulation Material

Design Criteria (1 = Best)

InsulationMaterial

Temp.Range

FireProtection

MechanicalAbuse

AbsorptionInstalled

CostTracing Vibration Permeability

CellularGlass

Ambientto -290 F(-178 C)

1 1 1 2 2 2 1

Polyiso-cyanurate

Ambientto -40 F(-40 C)

NR 2 2 1 1* 1 2

NR = Not Recommended * = Note Temperature Limit



6. Thickness Tables

6.1 Hot Insulation Thickness Tables

6.1.1 Table A design parameters were used to compute the economic and personnelprotection thicknesses shown in the Hot Insulation Thickness Tables.

6.1.2 Table A and the thickness tables are based on Gulf Coast (USA) conditions.Users shall determine if these economic and climatic conditions are applicableto their specific location.

6.1.3 For Hot Insulation Thickness Tables, see Tables INEG1001 throughINEG1017.

6.1.4 Thicknesses alone should not be used to select the insulation material type.

6.2 Cold Insulation Thickness Tables

6.2.1 Table B design parameters were used to compute the thicknesses shown in theCold Insulation Thickness Tables. Heat gain and condensation control wereconsidered.

6.2.2 Table B and the thickness tables are based on Gulf Coast (USA) conditions.Users shall determine if these heat gain and climatic conditions are applicableto their specific location.

6.2.3 For Cold Insulation Thickness Tables, see Tables INEG1051 throughINEG1056.

6.2.4 Thicknesses alone should not be used to select the insulation material type.



Table AHot Insulation Thickness 1998 Design Parameters

Interest Rate 12%Effective Income Tax 30%Annual Insulation Maintenance 2%Annual Physical Plant Maintenance 1%Annual Fuel Inflation Rate 4%

Physical Plant Annual Operating Hours 8320 hr/year

Physical Plant Depreciation Period 10 yearsNew Insulation Depreciation Period 4 years

First Year Cost of Energy 3.00 $/MMBtuIncremental Equipment Investment Rate 3.50 $/MMBtu/hr

Average Annual Ambient Temperature 69 F (21 C)

Average Annual Wind Speed 5 mph

Personnel Protection Design Wind Speed 2 mph

Personnel Protection Design Summer Dry BulbTemperature 95 F (35 C)

Personnel Protection Maximum Surface Temperature140 F (60 C)

Emittance of Existing Surface 0.8Emittance of Jacketing 0.4

Design Factor for Thermal Conductivity 1.0

Design Factor for Piping Complexity 1.2 simpleMinimum Insulation Design Thickness 1.5 in. (3.81 cm)

Labor Rate 38.35 $/hrProductivity Factor 100.00

Horizontal Pipe and Vertical EquipmentInsulation Cost Estimated by Federal Energy Administration (FEA) Method

Materials andAccessories

ASTM2 x 2 PipeInsulation

$/linear foot

2" BlockInsulation$/sq. foot

MaximumService

Temp., FCalcium Silicate C533 Type 1 3.81 3.04 1200Cellular Glass C552 5.62 4.49 800Mineral Wool Fiber C547 Type II 3.11 2.49 1200Expanded Perlite C610 4.06 3.24 1200Polyisocyanurate C591 3.50 2.80 225Fiber Glass C547 Type I 2.35 1.90 850

Reference: ASTM C680, Available from ASTM, Philadelphia, Pa.

3E PLUS Insulation Thickness Computer Program ver. 2.0, Copyright North America Insulation ManufacturersAssociation (NAIMA).

Notes:1. Thickness tables calculated using 3E PLUS Insulation Thickness Computer Program. Data edited to

indicate 1-1/2 in. minimum thickness and to resolve thickness discontinuities.2. Compared to plain aluminum jacketing, the higher emissivity of coated aluminum jacketing will reduce

the surface temperatures on hot insulation systems.



Table BCold Insulation Thickness 1998 Design Parameters

Design Ambient Temperature 85o F (29o C)Design Dew Point Temperature 78o F (26o C)Design Maximum Heat Gain Insulation Surface 10 Btu/hr-ft2

Design Relative Humidity 80%Design Wind Speed 5 mph

Emittance of Existing Surface 0.8Emittance of Jacketing - Cold Service (CC) 0.4Emittance of Jacketing - Condensation Control (CP) 0.4

Design Factor for Thermal Conductivity 1.0

Minimum Insulation Design Thickness 1.5 inches

Horizontal Pipe and Vertical EquipmentMaterials andAccessories

ASTMMinimum Service

Temp., FCellular Glass C552 -450Polyisocyanurate C591 -40

Reference: ASTM C680, Available from ASTM, Philadelphia, Pa.

3E Plus Insulation Thickness Computer Program ver. 2.11, Copyright North America Insulation ManufacturersAssociation (NAIMA)

Notes:1. Thickness tables calculated using 3E PLUS Insulation Thickness Computer Program. Data edited to

resolve thickness discontinuities.2. Minimum thickness of polyisocyanurate for temperatures less than 0 F is 2 to force multi-layer.

3. Compared to plain aluminum jacketing, the higher emissivity of coated aluminum jacketing requires lessinsulation thickness to resist condensation formation.



INEG1001Thickness of Calcium Silicate Insulation for HC

ASTM C533 Type IEconomic Thickness of Insulation - Inches

Operating Temperature, FNominalPipeSize,

Inches

To150

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0

6 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 4.0 4.0

8 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0

10 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

14 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

16 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

18 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

20 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

24 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

30 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

36 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

Flat 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0



INEG1002Thickness of Calcium Silicate Insulation for PP

ASTM C533 Type IMinimum Insulation Thickness

to Limit Maximum Surface Temperature to 140 F


Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.5 4.0

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.5 4.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.5

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.0 5.5 6.0

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.0 6.0 6.5

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.0

8 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.0 7.5

10 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 3.5 4.0 4.5 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.5 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 8.0 8.5

14 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.0 5.5 6.0 6.5 6.5 7.0 8.0 8.5

16 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5

18 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.5 9.0

20 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 7.5 8.5 9.0

24 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0

30 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 9.0 9.5

36 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 7.5 8.0 9.0 10.0

Flat 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 8.0 8.5 9.0 9.5



INEG1003Thickness of Calcium Silicate Insulation Combined Table

ASTM C533 Type IEconomic Thickness Required



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.5 4.0

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.5 4.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.5

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.0 5.5 6.0

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.0 6.0 6.5

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.0

8 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.0 7.5

10 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 3.5 4.0 4.5 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.5 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 8.0 8.5

14 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.0 5.5 6.0 6.5 6.5 7.0 8.0 8.5

16 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5

18 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.5 9.0

20 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 7.5 8.5 9.0

24 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0

30 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 9.0 9.5

36 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 7.5 8.0 9.0 10.0

Flat 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 8.0 8.5 9.0 9.5



INEG1004Thickness of Cellular Glass Insulation for HC

ASTM C552Economic Thickness of Insulation - Inches


Inches

To150

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.5 2.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.0

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0

8 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0

10 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.0 3.0 3.0 4.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 4.0 3.0 4.0

14 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0

16 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.0 3.0 4.0 4.0 4.0

18 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0

20 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0

24 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0

30 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 40.

36 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0

Flat 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0



INEG1005Thickness of Cellular Glass Insulation for PP

ASTM C552Maximum Insulation Thickness



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 3.5 4.0

4 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0

8 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0

10 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 6.0

14 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 3.5 4.0 5.0 5.5 6.0

16 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.0 4.5 5.5 6.0

18 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

20 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

24 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.5

30 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.5 6.0 6.5

36 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 5.0 5.5 6.0 6.5

Flat 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 5.0 5.5 6.0 6.5



INEG1006Thickness of Cellular Glass Insulation Combined Table

ASTM C552Economic Thickness Required



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 3.5 4.0

4 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0

8 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0

10 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 6.0

14 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 4.0 5.0 5.5 6.0

16 1.5 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.5 4.0 4.0 4.5 5.5 6.0

18 1.5 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

20 1.5 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

24 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.5

30 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.5 6.0 6.5

36 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0 5.0 5.5 6.0 6.5

Flat 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0 5.0 5.5 6.0 6.5



INEG1007Thickness of Fiberglass Insulation for HC

ASTM C547 Type IEconomic Thickness of Insulation - Inches


Inches

To150

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

6 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

8 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

10 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

14 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

16 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0

18 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0

20 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0

24 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0

30 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0

36 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0

Flat 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0



INEG1008Thickness of Fiberglass Insulation for PP

ASTM C547 Type IMinimum Insulation Thickness



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5

6 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0

8 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0

10 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5

12 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5

14 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.0 5.0

16 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0

18 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0

20 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0

24 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.0 4.5 5.0

30 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.0 5.0 5.5

36 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5

Flat 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0



INEG1009Thickness of Fiberglass Insulation Combined Table

ASTM C547 Type IEconomic Thickness Required



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 3.0

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.5

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.5

6 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 3.0 3.5 3.5 4.0

8 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 3.0 3.5 3.5 4.0

10 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.5

12 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 3.0 3.5 3.5 4.0 4.5

14 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.0 5.0

16 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.5 5.0

18 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0

20 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0

24 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0

30 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.5 4.0 4.0 5.0 5.5

36 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5

Flat 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.5 5.0



INEG1010Thickness of Mineral Wool Fiber Insulation for HC

ASTM C547 Type II or IIIEconomic Thickness of Insulation - Inches


Inches

To150

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 3.5 4.0 4.0 4.0

8 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 3.5 4.0 4.0 4.0

10 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 3.5 4.0 4.0 4.0 4.0 4.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.0 3.5 4.0 4.0 4.0 4.0 4.0 4.0 4.0

14 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

16 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

18 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 2.5 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

20 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

24 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

30 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

36 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

Flat 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0



INEG1011Thickness of Mineral Wool Fiber Insulation for PP

ASTM C547 Type II or IIIMinimum Insulation Thickness



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.5 4.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.5 3.5 4.0 4.5 5.0

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 5.0 5.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.5 6.0

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 6.0 6.5

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.5 7.0

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.5 8.0

8 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 6.5 8.0 8.5

10 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.0 8.0 9.0

12 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.5 9.0

14 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.0 5.0 5.0 5.5 6.0 6.5 7.0 7.5 8.5 9.5

16 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 9.0 9.5

18 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.0 9.5

20 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.0 10.0

24 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.5 10.0

30 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 3.0 4.0 4.0 4.0 5.0 5.5 5.5 6.0 6.5 7.5 8.0 8.5 10.0 10.5

36 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 10.0 11.0

Flat 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.5 7.0 7.5 8.0 9.0 10.0 11.0



INEG1012Thickness of Mineral Wool Fiber Insulation Combined Table

ASTM C547 Type II or IIIEconomic Thickness Required



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.5 4.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.5 3.5 4.0 4.5 5.0

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 5.0 5.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.5 6.0

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 6.0 6.5

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.5 7.0

6 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.5 8.0

8 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 6.5 8.0 8.5

10 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.0 8.0 9.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.5 9.0

14 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.0 5.0 5.0 5.5 6.0 6.5 7.0 7.5 8.5 9.5

16 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 9.0 9.5

18 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.0 9.5

20 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.0 10.0

24 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.5 10.0

30 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 4.0 4.0 4.0 5.0 5.5 5.5 6.0 6.5 7.5 8.0 8.5 10.0 10.5

36 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 10.0 11.0

Flat 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.5 7.0 7.5 8.0 9.0 10.0 11.0



INEG1013Thickness of Expanded Perlite Insulation for HC



Inches

To150

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0

3 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0

4 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0

6 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 4.0 4.0

8 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0

10 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.5 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0

12 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

14 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

16 1.5 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

18 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

20 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

24 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

30 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

36 1.5 1.5 2.0 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0

Flat 1.5 1.5 2.0 2.0 2.0 2.5 2.5 2.5 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0



INEG1014Thickness of Expanded Perlite Insulation for PP

ASTM C610Minimum Insulation Thickness



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.5 4.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.0

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 6.0 6.0

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.5 6.0 6.5

3 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 7.0 7.5

4 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.5 8.0

6 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 8.0 8.5

8 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 7.5 8.5 9.0

10 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.5 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.0 9.5

12 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.0

14 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.0

16 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.5

18 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10.0 10.5

20 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10.0 10.5

24 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.5 11.0

30 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.5 8.0 8.5 9.0 9.5 11.0 11.5

36 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.0 11.0 12.0

Flat 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 7.0 7.5 8.0 9.0 9.5 10.5 11.5 12.0



INEG1015Thickness of Expanded Perlite Insulation - Combined Table

ASTM C610Economic Thickness Required



Inches>140

151to

200

201to

250

251to

300

301to

350

351to

400

401to

450

451to

500

501to

550

551to

600

601to

650

651to

700

701to

750

751to

800

801to

850

851to

900

901to

950

951to

1000

1001to

1050

1051to

1100

1101to

1150

1151to

1200

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.5 4.5

1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 5.0

1 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.0

1-1/2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 6.0 6.0

2 1.5 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.5 6.0 6.5

3 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 7.0 7.5

4 1.5 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.0 5.5 6.0 6.5 7.5 8.0

6 1.5 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 8.0 8.5

8 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 7.5 8.5 9.0

10 1.5 1.5 1.5 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.5 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 9.0 9.5

12 1.5 1.5 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.0

14 1.5 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.0

16 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.5

18 1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10.0 10.5

20 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10.0 10.5

24 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.5 11.0

30 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.5 8.0 8.5 9.0 9.5 11.0 11.5

36 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.5 4.0 4.0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.5 10.0 11.0 12.0

Flat 1.5 1.5 2.0 2.0 2.0 2.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 7.0 7.5 8.0 9.0 9.5 10.5 11.5 12.0



INEG1016Thickness of Polyisocyanurate Insulation for HC



Inches

To150

151to

200

201to

250

1.5 1.5 1.5

1.5 1.5 1.5

1 1.5 1.5 1.5

1-1/2 1.5 1.5 1.5

2 1.5 1.5 1.5

3 1.5 1.5 1.5

4 1.5 1.5 1.5

6 1.5 1.5 1.5

8 1.5 1.5 1.5

10 1.5 1.5 1.5

12 1.5 1.5 1.5

14 1.5 1.5 1.5

16 1.5 1.5 1.5

18 1.5 1.5 1.5

20 1.5 1.5 1.5

24 1.5 1.5 1.5

30 1.5 1.5 1.5

36 1.5 1.5 1.5

Flat 1.5 1.5 1.5



INEG1017Thickness of Polyisocyanurate Insulation for PP

ASTM C591Minimum Insulation Thickness



Inches>140

151to

200

201to

250

1.5 1.5 1.5

1.5 1.5 1.5

1 1.5 1.5 1.5

1-1/2 1.5 1.5 1.5

2 1.5 1.5 1.5

3 1.5 1.5 1.5

4 1.5 1.5 1.5

6 1.5 1.5 1.5

8 1.5 1.5 1.5

10 1.5 1.5 1.5

12 1.5 1.5 1.5

14 1.5 1.5 1.5

16 1.5 1.5 1.5

18 1.5 1.5 1.5

20 1.5 1.5 1.5

24 1.5 1.5 1.5

30 1.5 1.5 1.5

36 1.5 1.5 1.5

Flat 1.5 1.5 1.5



INEG1051Thickness of Cellular Glass Insulation for CC

ASTM C552Thickness of Insulation

to Limit Heat Gain to 10 Btu/hr-ft2


Inches50

49to25

24to0

-1to-25

-26to-50

-51to-75

-76to

-100

-101to

-125

-126to

-150

-151to

-175

-176to

-200

-201to

-225

-226to

-250

-251to

-275

-276to

-290

1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 3.5 3.5 4.0 4.0

1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 4.5

1 1.5 1.5 2.0 2.0 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.0 4.0 4.5 4.5

1-1/2 1.5 1.5 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.0 5.0

2 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.0 4.0 4.5 4.5 5.0 5.0

3 1.5 1.5 2.0 2.5 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.0 5.0 5.5 5.5

4 1.5 1.5 2.5 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.0 5.5 5.5 6.0 6.0

6 1.5 1.5 2.5 3.0 3.0 3.5 4.0 4.5 4.5 5.0 5.5 6.0 6.0 6.5 6.5

8 1.5 1.5 2.5 3.0 3.0 3.5 4.0 4.5 4.5 5.0 5.5 6.0 6.0 6.5 7.0

10 1.5 1.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 6.5 7.0 7.0

12 1.5 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.0 5.5 6.0 6.5 6.5 7.0 7.0

14 1.5 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 7.5 7.5

16 1.5 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.0 6.5 7.0 7.5 7.5

18 1.5 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 7.5 7.5

20 1.5 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 7.5 8.0

24 1.5 1.5 2.5 3.0 3.5 4.5 5.0 5.5 5.5 6.0 6.5 7.0 7.5 8.0 8.0

30 1.5 1.5 2.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 6.5 7.0 7.5 8.0 8.5

36 1.5 1.5 2.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 7.5 8.0 8.5

48 to Flat 1.5 1.5 2.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0



INEG1052Thickness of Cellular Glass Insulation for CP

ASTM C552Minimum Insulation Thickness for Horizontal Pipe

to Limit Surface Condensation


Inches50

49to25

24to0

-1to-25

-26to-50

-51to-75

-76to

-100

-101to

-125

-126to

-150

-151to

-175

-176to

-200

-201to

-225

-226to

-250

-251to

-275

-276to

-290

1.5 1.5 1.5 2.0 2.0 2.5 2.5 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0

1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.0 4.0

1 1.5 1.5 1.5 2.0 2.0 2.5 3.0 3.5 3.5 3.5 3.5 4.0 4.0 4.5 4.5

1-1/2 1.5 1.5 2.0 2.0 2.0 2.5 3.0 3.5 3.5 4.0 4.0 4.5 4.5 4.5 4.5

2 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.0 5.5 5.5

3 1.5 1.5 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.0 5.5 5.5 6.0 6.0

4 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 4.5 5.0 5.0 5.5 6.0 6.5 6.5

6 1.5 1.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 6.5 7.0 7.0

8 1.5 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 7.5 7.5

10 1.5 1.5 2.5 3.0 3.5 4.0 5.0 5.5 6.0 6.5 6.5 7.0 7.5 8.0 8.0

12 1.5 1.5 2.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 7.5 8.0 8.0

14 1.5 2.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 8.5

16 1.5 2.0 3.0 3.5 4.0 5.0 5.5 6.0 6.0 6.5 7.0 7.5 8.0 8.5 8.5

18 1.5 2.0 3.0 3.5 4.0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.0 8.5 9.0

20 1.5 2.0 3.0 3.5 4.0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.0

24 1.5 2.0 3.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.0

30 1.5 2.0 3.0 4.0 4.5 5.0 5.5 6.0 7.0 7.5 8.0 8.5 9.0 9.5 9.5

36 1.5 2.0 3.0 4.0 4.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 9.5

48 to Flat 1.5 2.0 3.0 4.0 4.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 9.5



INEG1053Thickness of Cellular Glass Insulation - Combined Table

ASTM C552


Inches50

49to25

24to0

-1to-25

-26to-50

-51to-75

-76to

-100

-101to

-125

-126to

-150

-151to

-175

-176to

-200

-201to

-225

-226to

-250

-251to

-275

-276to

-290

1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 3.5 3.5 4.0 4.0

1.5 1.5 1.5 2.0 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 4.5

1 1.5 1.5 1.5 2.0 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.0 4.0 4.5 4.5

1-1/2 1.5 1.5 2.0 2.5 2.5 3.0 3.0 3.5 3.5 4.0 4.0 4.5 4.5 5.0 5.0

2 1.5 1.5 2.0 2.5 2.5 3.0 3.5 4.0 4.0 4.5 4.5 5.0 5.0 5.5 5.5

3 1.5 1.5 2.0 2.5 3.0 3.5 3.5 4.0 4.5 5.0 5.0 5.5 5.5 6.0 6.0

4 1.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 4.5 5.0 5.0 5.5 6.0 6.5 6.5

6 1.5 1.5 2.5 3.0 3.5 4.0 4.0 4.5 5.0 5.5 6.0 6.5 6.5 7.0 7.0

8 1.5 1.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.0 7.5 7.5

10 1.5 1.5 2.5 3.0 3.5 4.0 5.0 5.5 6.0 6.5 6.5 7.0 7.5 8.0 8.0

12 1.5 1.5 2.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 7.5 8.0 8.0

14 1.5 2.0 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 8.5

16 1.5 2.0 3.0 3.5 4.0 5.0 5.5 6.0 6.0 6.5 7.0 7.5 8.0 8.5 8.5

18 1.5 2.0 3.0 3.5 4.0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.0 8.5 9.0

20 1.5 2.0 3.0 3.5 4.0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.0

24 1.5 2.0 3.0 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.0

30 1.5 2.0 3.0 4.0 4.5 5.0 5.5 6.0 7.0 7.5 8.0 8.5 9.0 9.5 9.5

36 1.5 2.0 3.0 4.0 4.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 9.5

48 to Flat 1.5 2.0 3.0 4.0 4.5 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 9.5



INEG1054Thickness of Polyisocyanurate Insulation for CC

ASTM C591Thickness of Insulation

to Limit Heat Gain to 10 Btu/hr-ft2


Inches50

49to25

24to0

-1to-25

-26to-40

1.0 1.0 1.0 1.0 1.5

1.0 1.0 1.0 1.5 1.5

1 1.0 1.0 1.0 1.5 1.5

1-1/2 1.0 1.0 1.0 1.5 1.5

2 1.0 1.0 1.0 1.5 1.5

3 1.0 1.0 1.0 1.5 1.5

4 1.0 1.0 1.5 1.5 1.5

6 1.5 1.5 1.5 1.5 2.0

8 1.5 1.5 1.5 1.5 2.0

10 1.5 1.5 1.5 1.5 2.0

12 1.5 1.5 1.5 1.5 2.0

14 1.5 1.5 1.5 1.5 2.0

16 1.5 1.5 1.5 1.5 2.0

18 1.5 1.5 1.5 2.0 2.0

20 1.5 1.5 1.5 2.0 2.0

24 1.5 1.5 1.5 2.0 2.0

30 1.5 1.5 1.5 2.0 2.0

36 1.5 1.5 1.5 2.0 2.0

48 to Flat 1.5 1.5 1.5 2.0 2.0



INEG1055Thickness of Polyisocyanurate Insulation for CP

ASTM C591Minimum Insulation Thickness for Horizontal Pipe

to Limit Surface Condensation


Inches50

49to25

24to0

-1to-25

-26to-40

1.0 1.0 1.0 1.0 1.0

1.0 1.0 1.0 1.0 1.0

1 1.0 1.0 1.0 1.0 1.0

1-1/2 1.0 1.0 1.0 1.0 1.0

2 1.0 1.0 1.0 1.0 1.0

3 1.0 1.0 1.0 1.0 1.0

4 1.0 1.0 1.0 1.0 1.0

6 1.5 1.5 1.5 1.5 1.5

8 1.5 1.5 1.5 1.5 1.5

10 1.5 1.5 1.5 1.5 1.5

12 1.5 1.5 1.5 1.5 1.5

14 1.5 1.5 1.5 1.5 1.5

16 1.5 1.5 1.5 1.5 1.5

18 1.5 1.5 1.5 1.5 1.5

20 1.5 1.5 1.5 1.5 1.5

24 1.5 1.5 1.5 1.5 1.5

30 1.5 1.5 1.5 1.5 1.5

36 1.5 1.5 1.5 1.5 1.5

48 to Flat 1.5 1.5 1.5 2.0 2.0



INEG1056Thickness of Polyisocyanurate Insulation - Combined Table

ASTM C591


Inches50

49to25

24to0

-1to-25

-26to-40

1.0 1.0 1.0 1.0 1.5

1.0 1.0 1.0 1.5 1.5

1 1.0 1.0 1.0 1.5 1.5

1-1/2 1.0 1.0 1.0 1.5 1.5

2 1.0 1.0 1.0 1.5 1.5

3 1.0 1.0 1.0 1.5 1.5

4 1.0 1.0 1.5 1.5 1.5

6 1.5 1.5 1.5 1.5 2.0

8 1.5 1.5 1.5 1.5 2.0

10 1.5 1.5 1.5 1.5 2.0

12 1.5 1.5 1.5 1.5 2.0

14 1.5 1.5 1.5 1.5 2.0

16 1.5 1.5 1.5 1.5 2.0

18 1.5 1.5 1.5 2.0 2.0

20 1.5 1.5 1.5 2.0 2.0

24 1.5 1.5 1.5 2.0 2.0

30 1.5 1.5 1.5 2.0 2.0

36 1.5 1.5 1.5 2.0 2.0

48 to Flat 1.5 1.5 1.5 2.0 2.0

pip ineg1000 insulation design and type codes 1999-04

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