ASTM C1289-13e1 - 1.5.2013
 
1. Scope

1.1 This specification covers the general requirements for faced thermal insulation boards composed of rigid cellular polyisocyanurate surfaced with other materials. The insulation boards are intended for use at temperatures between −40 and 200°F (−40 and 93°C). This specification does not cover cryogenic applications. Consult the manufacturer for specific recommendations and properties in cryogenic conditions. For specific applications, the actual temperature limits shall be agreed upon by the manufacturer and the purchaser.

1.2 This standard is intended to apply to rigid cellular polyurethane-modified polyisocyanurate thermal insulation board products that are commercially acceptable as non-structural panels useful in building construction. The term polyisocyanurate encompasses the term polyurethane. For engineering and design purposes, users should follow specific product information provided by board manufacturers regarding physical properties, system design considerations and installation recommendations.

Note 1—See Appendix X1 for guidance on determining wind pressure resistance of panels when required for wall sheathing applications.

1.3 The use of thermal insulation materials covered by this specification is typically regulated by building codes, or other agencies that address fire performance. Where required, the fire performance of the material shall be addressed through standard fire test methods established by the appropriate governing documents.

1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Note 2—For conversion to metric units other than those contained in this standard, refer to IEEE/ASTM SI 10.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

D1621-16(2023)

Standard Test Method for Compressive Properties of Rigid Cellular Plastics

D2126-25

Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging

E84-26a

Standard Test Method for Surface Burning Characteristics of Building Materials (Includes all amendments and changes 4/15/2026).

E96/E96M-24a

Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials (Includes all amendments and changes 11/20/2024).

C1763-20(2025)

Standard Test Method for Water Absorption by Immersion of Thermal Insulation Materials

C550-26

Standard Test Method for Measuring Trueness and Squareness of Rigid Block and Board Thermal Insulation

C1303/C1303M-23

Standard Test Method for Predicting Long-Term Thermal Resistance of Closed-Cell Foam Insulation

C1177/C1177M-24

Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing

C1114-06(2019)

Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Thin-Heater Apparatus

C518-21

Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus

C1058/C1058M-10(2023)

Standard Practice for Selecting Temperatures for Evaluating and Reporting Thermal Properties of Thermal Insulation

C1045-19

Standard Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions

C728-17a(2022)

Standard Specification for Perlite Thermal Insulation Board (Includes all amendments and changes 4/4/2022).

C209-20(2026)

Standard Test Methods for Cellulosic Fiber Insulating Board

C208-22

Standard Specification for Cellulosic Fiber Insulating Board

C203-22

Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation

C168-25

Standard Terminology Relating to Thermal Insulation

C390-08(2024)

Standard Practice for Sampling and Acceptance of Thermal Insulation Lots

C1363-24

Standard Test Method for Thermal Performance of Building Materials and Envelope Assemblies by Means of a Hot Box Apparatus

C177-19e1

Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus (Includes all amendments and changes 2/23/2023).

IEEE/ASTM SI 10

Standard for Use of the International System of Units (SI): (The Modernized Metric System)

C303-21

Standard Test Method for Dimensions and Density of Preformed Block and Board–Type Thermal Insulation