This chapter contains material property data related to the thermal-,air-, and moisture-related performance of building assemblies. The informationcan be used in simplified calculation methods as applied in Chapter 27, or insoftware-based methods for transient solutions. Heat transfer understeady-state and transient conditions is covered in Chapter 4, and Chapter 25discusses combined heat, air, and moisture transport in building assemblies.For information on thermal insulation for mechanical systems (includinginsulation used in a range of temperatures), see Chapter 23. For information oninsulation materials used in refrigerant piping systems and cryogenic or low-temperatureapplications, see Chapters 10 and 47 of the 2018 ASHRAE Handbook—Refrigeration. For properties of materials nottypically used in building construction, see Chapter 33 of this volume.

INSULATION MATERIALS ANDINSULATING SYSTEMS
Apparent ThermalConductivity
Materials and Systems
AIR BARRIERS
WATER VAPOR RETARDERS
DATA TABLES
Thermal Property Data
Surface Emissivity andEmittance Data
Thermal Resistance of PlaneAir Spaces
Air Permeance Data
Water Vapor Permeance Data
Moisture Storage Data
Soils Data
Surface FilmCoefficients/Resistances
Codes and Standards

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