ACI-TMS CODE-122.2-24: Thermal Properties of Concrete and Masonry for Use in Determining Energy Code Compliance for Low-Rise Residential Buildings—Code Requirements and Commentary

Currency Display

Your Price:$ 89.00 USD

Member Price: $ 59.00 USD

Save $ 30.00 USD, Become a Member

Choose Product Language

Choose Product Units


Choose Product Format


Description

This Code prescribes minimum design and construction requirements for energy efficiency of building envelopes of new buildings and additions to buildings. It applies to buildings having concrete walls, roofs, or floors; masonry walls; and masonry veneer, including veneer attached to frame walls as part of the building envelope. It also provides minimum thermal properties for these assemblies for code compliance. This Code is applicable to low-rise residential buildings that use either electricity from any generation source or fossil fuel. It can be used with applicable energy codes and standards such as the International Energy Conservation Code (IECC).

Keywords:

energy efficiency; specific heat; thermal conductivity; thermal diffusivity; thermal resistance; thermal transmittance.

 

Document Details

Author: Joint ACI-TMS Committee 122

Publication Year: 2024

Pages: 112

ISBN: 9781641952514

Formats: Protected PDF/Web View

Table of Contents

PREFACE, p. 2

CHAPTER 1—GENERAL, p. 3

1.1—Scope, p. 3

1.2—General, p. 3

1.3—Purpose, p. 3

1.4—Applicability, p. 3

1.5—Interpretation, p. 4

CHAPTER 2—NOTATION AND DEFINITIONS, p. 5

2.1—Code notation, p. 5

2.2—Code definitions, p. 5

CHAPTER 3—REFERENCED STANDARDS, p. 7

3.1—American Concrete Institute (ACI), p. 7

3.2—American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), p. 7

3.3—ASTM International, p. 7

3.4—International Code Council (ICC), p. 8

CHAPTER 4—GENERAL REQUIREMENTS, p. 9

4.1—Material requirements, p. 9

4.2—Climate zones, p. 9

4.3—Building envelope compliance, p. 9

CHAPTER 5—PRESCRIPTIVE METHOD, p. 10

5.1—Concrete and masonry, p. 10

5.2—Other assemblies, p. 12

CHAPTER 6—BUILDING ENVELOPE TRADE-OFF METHOD, p. 13

6.1—Building envelope trade-off method, p. 13

CHAPTER 7—WHOLE BUILDING SIMULATION METHOD, p. 15

7.1—Whole building simulation method, p. 15

CHAPTER 8—THERMAL PROPERTIES FOR DETERMINING COMPLIANCE, p. 16

8.1—U-factors, C-factors, and R-values of assemblies, p. 16

8.2—Thermal conductivity, p. 95

8.3—Thermal inertia including heat capacity and specific heat, p. 96

8.4—Solar reflectance and solar reflectance index, p. 98

COMMENTARY REFERENCES, p. 99

Authored documents, p. 99

Software, p. 100

APPENDIX A—CLIMATE ZONE MAPS, p. 101

APPENDIX B—THERMAL CONDUCTIVITY, p. 102

B.1—Thermal conductivity of concrete, concrete masonry, and clay masonry, p. 102

B.2—Influence of moisture, p. 103

B.3—Thermal conductivity of aggregates and cement paste, p. 103

B.4—Thermal conductivity of concrete used in CMU, p. 104

B.5—Practical thermal conductivity, p. 104

APPENDIX C—THERMAL INERTIA (THERMAL MASS), p. 106

C.1—Thermal mass in walls, p. 106

C.2—Thermal mass in buildings, p. 107

APPENDIX D—THERMAL PERFORMANCE OF WALLS WITH MASONRY VENEER, p. 108

ERRATA INFO

Any applicable errata are included with individual documents at the time of purchase. Errata are not included for collections or sets of documents such as the ACI Collection. For a listing of and access to all product errata, visit the Errata page.

Return/Exchange Policy

Printed / Hard Copy Products: The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. A 20% service charge applies. Return shipping fees are the customer’s responsibility.

Electronic /Downloaded Products & Online Learning Courses: These items are not eligible for return.

Subscriptions These items are not eligible for return.

Exchanges: Contact ACI’s Customer Services Department for options (+1.248.848.3800 – ACICustomerService@concrete.org).