RULE 168.00.04-001 - 2004 Arkansas Energy Code for New Building Construction - Arkansas Supplements and Amendments to the 2003 International Energy Conservation Code

RULE 168.00.04-001. 2004 Arkansas Energy Code for New Building Construction - Arkansas Supplements and Amendments to the 2003 International Energy Conservation Code

OVERVIEW

This document supplements and amends the International Energy Conservation Code (IECC), 2003 Edition. In cases where there are differences between these "Supplements and Amendments" and the IECC 2003 Edition, or with ANSI/ASHRAE/IESNA Standard 90.1-2001, these "Supplements and Amendments" shall take precedence.

Each of the following Chapters of this document associates directly with the corresponding chapters of the IECC 2003.

CHAPTER 1. Administration - Deleted. Replaced with the 2004 Arkansas Energy Code for New Building Construction, Chapter 1, Administration and Enforcement.

CHAPTER 2: Definitions .

CHAPTER 3: Design Conditions . Establishes the design criteria for the entire state of Arkansas and defines Arkansas' four climate zones. The climate zones establish the design conditions for use with Chapters 4, 5, 6 and 8.

This chapter has been modified to include a map of Arkansas with a list of counties and their associated climate zones, and a table identifying the Heating Degree Day (HDD) ranges associated with each zone.

* CHAPTER 4: Pertains to residential building design by systems analysis, as well as the use of renewable resources such as wind, solar, geothermal, etc.

Section 402.2.3.1.3 has been deleted which required windows to have a 0.40 Solar Heat Gain Coefficient (SHGC) in homes located in areas experiencing less than 3,500 HDD.

* CHAPTER 5: Residential compliance by designed component1performance -this analyzes the total building for compliance one component at a time. Assuming each individual component of the building meets the thermal requirements of the code then the entire building is deemed to comply. This chapter offers the use of "trade-offs" to achieve compliance by allowing the builder to substitute or "trade-off" values between building components. A properly executed use of an Arkansas Energy Office approved compliance tool may be used to validate any trade-off.

Section 502.1. 5 has been deleted which required the 0.40 SHGC. The R-values in the Minimum Duct Insulation Table 503.3.3.3 have been changed. Also footnote "b" under that same table has been deleted which stated that insulation on return ducts located in a basement is not required. All references to the International Mechanical Code have been changed to the Arkansas Mechanical Code.

* CHAPTER 6: Offers residential prescriptive compliance via the single step compliance method by selecting an option directly from the charts in the applicable climate zone. The values from the option show the minimum requirements for each component of a residential structure for the specific climate zone. An approved Arkansas Energy Office prescripive compliance tool may be used to validate code compliance.

Section 602.2 has been deleted which required the 0.40 SHGC.

CHAPTER 7: Pertains to building design for commercial buildings, except those that comply with Chapter 8. ANSI/ASHRAE/1ESNA Standard 90.1-2001 is adopted by reference. An approved Arkansas Energy Office compliance tool may be used to validate compliance.

* CHAPTER 8: Pertains to design by acceptable practice for commercial buildings. All references to the International Mechanical Code have been changed to the Arkansas Mechanical Code. An approved Arkansas Energy Office compliance tool may be used to validate compliance.

SUMMARY

Chapters 4, 5 and 6 offer different methods to achieve code compliance for low-rise residential construction, and Chapters 7 and 8 offer different methods to achieve code compliance for commercial and high-rise residential construction.

These amendments have four significant changes:

1) Chapter 1 - Administration, of the IECC 2003 was deleted and replaced with the 2004 Arkansas Energy Code for New Building Construction, Chapter 1, Administration and Enforcement.

2) The requirement of a 0.4 Solar Heat Gain Coefficient in Chapters 4, 5 and 6 was deleted.

3) The residential duct insulation requirement was changed.

4) ANSI/ASHRAE/IESNA 90.1-2001 is referenced for commercial buildings and high-rise residential buildings in Chapters 7 and 8.

ARKANSAS AMENDMENTS

* Revise the 2004 Arkansas Energy Code for New Building Construction (the 2003 Edition of the International Energy Conservation Code), as follows:

CHAPTER 1

ADMINISTRATION

Delete entire CHAPTER 1 ADMINISTRATION. Replace with the 2004 Arkansas Energy Code for New Building Construction, CHAPTER 1, ADMINISTRATION AND ENFORCEMENT as follows.

CHAPTER 1 ADMINISTRATION and ENFORCEMENT

SECTION 101 GENERAL

101.1 Title. These regulations shall be known as the 2004 Arkansas Energy Code for New Building Construction, and shall be cited as such. It is referred to herein as "this code."

101.2 Scope. This code establishes minimum prescriptive and performance-related regulations for the design of energy-efficient buildings and structures or portions thereof that provide facilities or shelter for public assembly, educational, business, mercantile, institutional, storage and residential occupancies, as well as those portions of factory and industrial occupancies designed primarily for human occupancy. This code thereby addresses the design of energy-efficient building envelopes and the selection and installation of energy-efficient mechanical, service water-heating, electrical distribution and illumination systems and equipment for the effective use of energy in these buildings and structures. NOTE: All referenced Chapters, Sections and Tables in this Chapter correspond directly to the International Energy Conservation Code, 2003 Edition.

101.2.1 Exempt buildings. Buildings and structures indicated in Sections 101.2.1.1 through 101.2.1.5 shall be exempt from the building envelope provisions of this code, but shall comply with the provisions for building, mechanical, service water heating and lighting systems.

101.2.1.1 Separated buildings. Buildings and structures, or portions thereof separated by building envelope assemblies from the remainder of the building, that have a peak design rate of energy usage less than 3.4 Btu/h per square foot (10.7 W/m2) or 1.0 watt per square foot (10.7 W/m2) of floor area for space conditioning purposes.

101.2.1.2 Unconditioned buildings. Buildings and structures or portions thereof, which are neither heated nor cooled.

101.2.1.3: Buildings and structures or portions thereof that are exclusively heated or cooled by renewable fuels.

101.2.1.4: Mobile homes

101.2.1.5: Temporary use structures such as hunting and fishing camps, boat houses, remote cabins, etc. that do not meet the definition of "dwelling units" in Section 202; General Definitions.

101.2.2 Applicability. The provisions of this code shall apply to all matters affecting or relating to structures and premises, as set forth in Section 101. Where, in a specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern.

101.2.2.1 Existing installations. Except as otherwise provided for in this chapter, a provision in this code shall not require the removal, alteration or abandonment of, nor prevent the continued utilization and maintenance of, an existing building envelope, mechanical, service water-heating, electrical distribution or illumination system lawfully in existence at the time of the adoption of this code.

101.2.2.2 Additions to Existing Buildings: Additions to existing buildings or structures may be made to such buildings or structures without making the entire building or structure comply. The new addition shall conform to the provisions of this Code as they relate to new construction only.

101.2.2.3 Renovations: Any rehabilitation of an existing building that requires more than 25 percent of the gross floor area or volume of the entire building to be rebuilt shall comply with this Code. Cosmetic work such as painting, wall covering, wall paneling, and floor covering shall not be included.

101.2.2.4 Historic buildings. The provisions of this code relating to the construction, alteration, repair, enlargement, restoration, relocation or movement of buildings or structures shall not be mandatory for existing buildings or structures specifically identified and classified as historically significant by the state or local jurisdiction, listed in The National Register of Historic Places or which have been determined to be eligible for such listing.

101.2.3 Mixed occupancy. When a building houses more than one occupancy, each portion of the building shall conform to the requirements for the occupancy housed therein. Where minor accessory uses do not occupy more than 10 percent of the area of any floor of a building, the major use shall be considered the building occupancy. Buildings, other than detached one- and two-family dwellings and townhouses, with a height of four or more stories above grade shall be considered commercial buildings for purposes of this code, regardless of the number of floors that are classified as residential occupancy.

101.3 Intent. The provisions of this code shall regulate the design of building envelopes for adequate thermal resistance and low air leakage and the design and selection of mechanical, electrical, service water-

heating and illumination systems and equipment which will enable effective use of energy in new building construction. It is intended that these provisions provide flexibility to permit the use of innovative approaches and techniques to achieve effective utilization of energy. This code is not intended to abridge safety, health or environmental requirements under other applicable codes or ordinances.

101.4 Compliance. Compliance with this code shall be determined in accordance with Sections 101.4.1 and 101.4.2.

101.4.1 Residential buildings. For residential buildings the following shall be used as the basis for compliance assessment: a systems approach for the entire building (Chapter 4), an approach based on performance of individual components of the building envelope (Chapter 5), an approach based on performance of the total building envelope (Chapter 5), an approach based on acceptable practice for each envelope component (Chapter 5), an approach by prescriptive specification for individual components of the building envelope (Chapter 5), or an approach based on simplified, prescriptive specification (Chapter 6) where the conditions set forth in Section 101.4.1.1 or 101.4.1.2 are satisfied.

101.4.1.1 Detached one- and two-family dwellings. When the glazing area does not exceed 15 percent of the gross area of exterior walls.

101.4.1.2 Residential buildings, Group R-2, R-4 or townhouses. When the glazing area does not exceed 25 percent of the gross area of exterior walls.

101.4.2 Commercial buildings. For commercial buildings, a prescriptive or performance-based approach (Chapter 7) or as specified by acceptable practice (Chapter 8) shall be used as the basis for compliance assessment.

SECTION 102 MATERIALS, SYSTEMS AND EQUIPMENT

102.1 General. Materials, equipment and systems shall be identified in a manner that will allow a determination of their compliance with the applicable provisions of this code.

102.2 Materials, equipment and systems installation. All insulation materials, caulking and weatherstripping, fenestration assemblies, mechanical equipment and systems components, and water-heating equipment and system components shall be installed in accordance with the manufacturer's installation instructions.

102.3 Maintenance information. Required regular maintenance actions shall be clearly stated and incorporated on a readily accessible label. Such label shall include the title or publication number, the operation and maintenance manual for that particular model and type of product. Maintenance instructions shall be furnished for equipment that requires preventive maintenance for efficient operation.

102.4 Insulation installation. Roof/ceiling, floor, wall cavity and duct distribution systems insulation shall be installed in a manner that permits inspection of the manufacturer's R-value identification mark.

102.4.1 Protection of exposed foundation insulation. Insulation applied to the exterior of foundation walls and around the perimeter of slab-on-grade floors shall have a rigid, opaque and weather-resistant protective covering to prevent the degradation of the insulation's thermal performance. The protective covering shall cover the exposed area of the exterior insulation and extend a minimum of 6 inches (153 mm) below grade.

102.5 Identification. Materials, equipment and systems shall be identified in accordance with Sections 102.5.1, 102.5.2 and 102.5.3.

102.5.1 Building envelope insulation. A thermal resistance (R) identification mark shall be applied by the manufacturer to each piece of building envelope insulation 12 inches (305 mm) or greater in width. Alternatively, the insulation installer shall provide a signed and dated certification for the insulation installed in each element of the building envelope, listing the type of insulation installations in roof/ceilings, the manufacturer and the R-value. For blown-in or sprayed insulation, the installer shall also provide the initial installed thickness, the settled thickness, the coverage area and the number of bags installed. Where blown-in or sprayed insulation is installed in walls, floors and cathedral ceilings, the installer shall provide a certification of the installed density and R-value. The installer shall post the certification in a conspicuous place on the job site.

102.5.1.1 Roof/ceiling insulation. The thickness of roof/ceiling insulation that is either blown in or sprayed shall be identified by thickness markers that are labeled in inches or millimeters installed at least one for every 300 square feet (28 m2) throughout the attic space. The markers shall be affixed to the trusses or joists and marked with the minimum initial installed thickness and minimum settled thickness with numbers a minimum of 1 inch (25 mm) in height. Each marker shall face the attic access. The thickness of installed insulation shall meet or exceed the minimum initial installed thickness shown by the marker.

102.5.2 Fenestration product rating, certification and labeling.U-factors of fenestration products (windows, doors and skylights) shall be determined in accordance with NFRC 100 by an accredited, independent laboratory, and labeled and certified by the manufacturer. The solar heat gain coefficient (SHGC) of glazed fenestration products (windows, glazed doors and skylights) shall be determined in accordance with NFRC 200 by an accredited, independent laboratory, and labeled and certified by the manufacturer. Where a shading coefficient for a fenestration product is used, it shall be determined by converting the product's SHGC, as determined in accordance with NFRC 200, to a shading coefficient, by dividing the SHGC by 0.87. Such certified and labeled U-factors and SHGCs shall be accepted for purposes of determining compliance with the building envelope requirements of this code.

When a manufacturer has not determined product U-factor in accordance with NFRC 100 for a particular product line, compliance with the building envelope requirements of this code shall be determined by assigning such products a default U-factor in accordance with Tables 102.5.2(1) and 102.5.2(2). When a SHGC or shading coefficient is used for code compliance and a manufacturer has not determined product SHGC in accordance with NFRC 200 for a particular product line, compliance with the building envelope requirements of this code shall be determined by assigning such products a default SHGC in accordance with Table 102.5.2(3). Product features must be verifiable for the product to qualify for the default value associated with those features. Where the existence of a particular feature cannot be determined with reasonable certainty, the product shall not receive credit for that feature. Where a composite of materials from two different product types is used, the product shall be assigned the higher U-factor.

TABLE 102.5.2(1) U-FACTOR DEFAULT TABLE FOR WINDOWS, GLAZED DOORS AND SKYLIGHTS

FRAME MATERIAL AND PRODUCT TYPEa

SINGLE GLAZED

DOUBLE GLAZED

Metal without thermal break:

Curtin wall

Fixed

Garden window

Operable (including sliding and swinging glass doors)

Site-assembled sloped/overhead glazing

Skylight

1.22

1.13

2.60

1.27

1.36

1.98

0.79

0.69

1.81

0.87

0.82

1.31

Metal with thermal break:

Curtain wall

Fixed

Operable (including sliding and swinging glass doors)

Site-assembled sloped/overhead glazing

Skylight

1.11

1.07

1.08

1.25

1.89

0.68

0.63

0.65

0.70

1.11

Reinforced vinyl/metal clad wood:

Fixed

Operable (including sliding and swinging glass doors)

Skylight

0.98

0.90

1.75

0.56

0.57

1.05

Wood/vinyl/fiberglass:

Fixed

Garden window

Operable (including sliding and swinging glass doors)

Skylight

0.98

2.31

0.89

1.47

0.56

1.61

0.55

0.84

a. Glass block assemblies with mortar but without reinforcing or framing shall have a U-factor of 0.60.

TABLE 102.5.2(2) U-FACTOR DEFAULT TABLE FOR NONGLAZED DOORS

DOOR TYPE

WITH FOAM CORE

WITHOUT FOAM CORE

Steel doors (1.75 inches thick)

0.35

0.60

  

WITH

STORM

DOOR

WITHOUT

STORM

DOOR

Wood doors (1.75 inches thick)

Hollow core flush

Panel with 0.438-inch panels

Panel with 1.125-inch panels

Solid core flush

0.32

0.36

0.28

0.26

0.46

0.54

0.39

0.40

For SI: 1 inch = 25.4 mm.

TABLE 102.5.2(3) SHGC DEFAULT TABLE FOR FENESTRATION

PRODUCT DESCRIPTION

SINGLE GLAZED

DOUBLE GLAZED

Clear

Bronze

Green

Gray

Clear

+ Clear

Bronze

+ Clear

Green

+ Clear

Gray + Clear

Metal frames Fixed Operable

0.78 0.75

0.67 0.64

0.65 0.62

0.64 0.61

0.68 0.66

0.57 0.55

0.55 0.53

0.54 0.52

Nonmetal frames Fixed Operable

0.75 0.63

0.64 0.54

0.62 0.53

0.61 0.52

0.66 0.55

0.54 0.46

0.53 0.45

0.52 0.44

SECTION 103

ALTERNATE MATERIALS-METHOD OF CONSTRUCTION, DESIGN OR INSULATING SYSTEMS

103.1 General. The provisions of this code are not intended to prevent the use of any material, method of construction, design or insulating system not specifically prescribed herein, provided that such construction, design or insulating system has been approved by the code official as meeting the intent of the code.

Compliance with specific provisions of this code may be determined through the use of deemed to comply computer software, worksheets, compliance manuals and other similar materials when they have been approved by the Arkansas Energy Office.

SECTION 104

CONSTRUCTION DOCUMENTS

104.1 General. Construction documents and other supporting data shall be submitted in one or more sets with each application for a permit. The construction documents and designs submitted under the provisions of Chapter 4 shall be prepared by a registered design professional where required by the statutes of the jurisdiction in which the project is to be constructed. Where special conditions exist, the code official is authorized to require additional construction documents to be prepared by a registered design professional.

Exceptions:

1. The code official is authorized to waive the submission of construction documents and other supporting data not required to be prepared by a registered design professional if it is found that the nature of the work applied for is such that reviewing of construction documents is not necessary to obtain compliance with this code.

2. For residential buildings having a conditioned floor area of 5,000 square feet (465 m2) or less, designs submitted under the provisions of Chapter 4 shall be prepared by anyone having qualifications acceptable to the code official.

104.2 Information on construction documents. Construction documents shall be drawn to scale upon suitable material. Electronic media documents are permitted to be submitted when approved by the code official. Construction documents shall be of sufficient clarity to indicate the location, nature and extent of the work proposed and show in sufficient detail pertinent data and features of the building and the equipment and systems as herein governed, including, but not limited to, design criteria, exterior envelope component materials, U-factors of the envelope systems, U-factors of fenestration products, R-values of insulating materials, size and type of apparatus and equipment, equipment and systems controls and other pertinent data to indicate compliance with the requirements of this code and relevant laws, ordinances, rules and regulations, as determined by the code official.

104.3 Design Professional: Architects and engineers employed to prepare plans and specifications for new buildings shall ensure the plans and specifications comply with the provisions of this Code in a manner consistent with their obligations under Arkansas State law (see also the Arkansas Fire Prevention Code 2002 Edition, Volume I Fire, Volume II Building).

SECTION 105

CONTRACTOR / BUILDER COMPLIANCE

105.1 General: Compliance with this Code shall be the obligation of the licensed builder or contractor.

105.1.1 Compliance: Compliance signifies that the licensed builder or contractor has constructed or will construct or renovate the building in compliance with the requirements of this Code, and that by inspection within a two-year period from the date of completion, if the building fails to meet the Code's specifications, understands that he or she is responsible for bringing the building into compliance with this Code.

105.1.2 Compliance Materials: Compliance materials, instructions and Arkansas Energy Office approved tools and third-party services, are made a part of this Code by reference.

105.1.3 Compliance by Self-Builders: Compliance with this Code by builders who build, or contract to build, single-family buildings for their own occupancy is voluntary.

105.2 Compliance Alternatives

105.2.1 Alternative Compliance Tools: Arkansas Energy Office approved alternative compliance tools may be used to validate code compliance.

105.2.2 Federally Financed Homes: Newly constructed single and multi-family buildings financed through HUD/FHA, VA, and USDA Rural Development programs shall meet the thermal performance requirements of this Code.

SECTION 106

INSPECTIONS

106.1 General. Construction or work that must comply with this code shall be subject to inspection by the Arkansas Energy Office or its agent, or by the code official if a county or municipality elects to adopt this Code.

106.2 Approvals required. No work shall be done on any part of the building or structure beyond the point indicated in each successive inspection without first obtaining the written approval of the code official. No construction shall be concealed without inspection approval from the code official.

106.3 Final inspection. Code officials within a county or municipality who have adopted this Code shall perform a final inspection and approval for buildings when completed and ready for occupancy.

106.4 Reinspection. The Arkansas Energy Office or its agent or code official may cause a structure to be reinspected.

SECTION 107

ENFORCEMENT

107.1 General: Enforcement of this Code shall be the responsibility of the Arkansas Energy Office or local government (if adopted).

107.2 Local Government: Any county or municipality may elect to adopt this Code for new construction, additions and renovation of existing structures. However, the local municipality shall not in any way modify the energy conservation standards in this Code or promulgate or adopt rules or regulations that are less stringent than this Code.

A local government may exercise other administrative and enforcement procedures that it deems necessary to affect the purposes of this Code, including, but not limited to, prior plan approval, building permit requirements, and inspections during the course of construction.

SECTION 108 APPEALS

108.1 Board of Appeals: Any appeal of the energy conservation standards contained in this Code shall be made to the Board of Appeals established by the Arkansas Energy Office, and a decision on an appeal will be made within 45 days of its filing.

108.2 Local Government: In any county or municipality where this Code is adopted, the governing body shall establish a Board of Appeals to adjudicate complaints arising from the application of the Code. When a Board of Appeals is established, the governing body shall prescribe procedures for providing a fair and reasonable hearing of the appeal.

SECTION 109

VALIDITY

109.1 General. If a section, subsection, sentence, clause or phrase of this code is, for any reason, held to be unconstitutional, such decision shall not affect the validity of the remaining portions of this code.

SECTION 110

RESPONSIBILITY

110.1 These minimum standards shall not be construed as relieving the licensed builder or contractor of his or her responsibility for compliance with local ordinances, codes, and regulations.

SECTION 111

REFERENCED STANDARDS

111.1 General. The standards, and portions thereof, which are referred to in this code and listed in Chapter 10, shall be considered part of the requirements of this code to the extent of such reference.

111.2 Conflicting requirements. When a section of this code and a section of a referenced standard from Chapter 10 specify different materials, methods of construction or other requirements, the provisions of this code shall apply.

SECTION 112 EFFECTIVE DATE

112.1 The effective date of this Code for residential buildings, as defined herein, is 10/1/2004. The effective date of this Code for commercial buildings, as defined herein, is 10/1/2004.

CHAPTER 2

DEFINITIONS

* Revise Section 202 GENERAL DEFINITIONS to read as follows:

EFFICIENCY, HVAC SYSTEM. The ratio of useful energy output (at the point of use) to the energy input in consistent units for a designated time period, expressed in percent.

RECOOLING. The removal of heat by sensible cooling of the supply air (directly or indirectly) which has been previously heated above the temperature to which the air is to be supplied to the conditioned space for proper control of the temperature of that space.

RECOVERED ENERGY. Energy utilized which would otherwise be wasted (i.e., not contribute to a desired end use) from an energy utilization system.

RESET. Adjustment of the set point of a control instrument to a higher or lower value automatically or manually to conserve energy.

RESIDENTIAL BUILDING. Detached one- and two-family dwellings.

CHAPTER 3

DESIGN CONDITIONS

TABLE 302.1

EXTERIOR DESIGN CONDITIONS

* Revise footnotes b and c and add footnote d under table 302.1 as follows:

b. The degree days heating (base 60°F) and cooling (base 60°F) shall be selected from NOAA "Annual Degree Days to Selected Bases Derived from the 1961-1990 Normals," the ASHRAE Handbook of Fundamentals, data available from adjacent military installations, or other source of local weather data acceptable to the code official.

c. The climate zone shall be selected from the map provided in Figure 302.1(1) on the following page.

d. Load calculations may be determined by using ACCA Manual J for residential, and ACCA Manual N for commercial.

* Add the following FIGURE 302.1(1) showing the four climate zones in Arkansas with a list of counties and their associated climate zones, and add Table 302.2 Arkansas HDD and zones:

CHAPTER 4

RESIDENTIAL BUILDING DESIGN BY SYSTEMS ANALYSIS AND DESIGN OF BUILDINGS UTILIZING RENEWABLE ENERGY SOURCES

* Delete Section 402.2.3.1.3 FENESTRATION SYSTEM SOLAR HEAT GAIN COEFFICIENT, STANDARD DESIGN without substitution.

CHAPTER 5

RESIDENTIAL BUILDING DESIGN BY COMPONENT PERFORMANCE APPROACH

* Revise Exception 2 in Section 502.1.1 MOISTURE CONTROL as follows:

2. Vapor retarders shall not be required where the county in which the building is being constructed is considered a hot and humid climate area and identified as such in Figure 302.1(1).

* Delete Section 502.1.5 FENESTRATION SOLAR HEAT GAIN COEFFICIENT without substitution.

* Revise Table 503.3.3.3 MINIMUM DUCT INSULATION as follows:

TABLE 503.3.3.3

MINIMUM DUCT INSULATION a

ANNUAL HEATING DEGREE DAYS

Insulation R-value d

Ducts in unconditioned attics or outside building

Ducts in unconditioned basements, crawl spaces, garages, and other unconditioned spaces c

Supply

Return

Supply

Return

< 1,500

8

4

4

0

1,500 to 3,500

5.6

5.6

5.6

5.6

3,501 to 7,500

5.6

5.6

5.6

5.6

> 7,500

11

6

11

2

* Delete footnote b in Table 503.3.3.3 without substitution.

SECTION 503

BUILDING MECHANICAL SYSTEMS AND EQUIPMENT

* Replace the International Mechanical Code with the Arkansas Mechanical Code in Sections 503.3.3.4 DUCT CONSTRUCTION, 503.3.3.4.1 HIGH-AND MEDIUM-PRESSURE DUCT SYSTEMS and 503.3.3.4.2 LOW-PRESSURE DUCT SYSTEMS.

CHAPTER 6

SIMPLIFIED PRESCRIPTIVE REQUIREMENTS FOR DETACHED ONE- AND TWO-FAMILY DWELLINGS AND GROUP R-2, R-4 OR TOWNHOUSE RESIDENTIAL BUILDINGS

* Revise Section 601.2 COMPLIANCE to include deemed to comply tools that are approved by the Arkansas Energy Office.

601.2 Compliance. Compliance shall be demonstrated in accordance with Section 601.2.1 or 601.2.2. Deemed to comply tools that are approved by the Arkansas Energy Office shall be permitted to demonstrate compliance.

* Revise Section 601.3.2.1 DEFAULT FENESTRATION PERFORMANCE as follows:

601.3.2.1 Default fenestration performance. Where a manufacturer has not determined a fenestration product's U-factor in accordance with NFRC 100, compliance shall be determined by assigning such products a default U-factor from Tables 102.5.2(1) and 102.5.2(2).

* Modify Exception in Section 602.1.6 SLAB-ON-GRADE FLOORS as follows:

Exception: Slab perimeter insulation is not required for unheated slabs in areas of moderate to very heavy termite infestation probability as shown in Figure 502.2(7). Where this exception is used, building envelope compliance shall be demonstrated by using Section 502.2.2 or Chapter 4 with the actual "Slab perimeter R-value and depth" in Table 602.1, or by using Section 502.2.4.

* Delete Section 602.2 MAXIMUM SOLAR HEAT GAIN COEFFICIENT FOR FENESTRATION PRODUCTS without substitution.

CHAPTER 7

BUILDING DESIGN FOR ALL COMMERCIAL BUILDINGS

* Revise ASHRAE/IESNA 90.1 to ANSI/ASHRAE/IESNA 90.1-2001 in Section 701.1:

701.1 Scope. Commercial buildings shall meet the requirements of ANSI/ASHRAE/IESNA 90.1-2001.

CHAPTER 8

DESIGN BY ACCEPTABLE PRACTICE FOR COMMERCIAL BUILDINGS

* Replace the International Mechanical Code with the Arkansas Mechanical Code in Sections 803.2.5 VENTILATION, 803.2.6 COOLING WITH OUTDOOR AIR, 803.2.8.1 DUCT CONSTRUCTION, 803.2.8.1.1 HIGH- AND MEDIUM-PRESSURE DUCT SYSTEMS, 803.2.8.1.2 LOW-PRESSURE DUCT SYSTEMS, 803.3.4 REQUIREMENTS FOR COMPLEX MECHANICAL SYSTEMS SERVING MULTIPLE ZONES, and 803.3.8.1 AIR SYSTEM BALANCING.

* Replace ASHRAE/IESNA 90.1 with ANSI/ASHRAE/IESNA 90.1-2001 in Sections 801.2 APPLICATIONS, SECTION 802 BUILDING ENVELOPE REQUIREMENTS, 802.1 GENERAL, and 802.2 CRITERIA.

CHAPTER10 REFERENCED STANDARDS

* Revise Chapter 10 REFERENCED STANDARDS to include the following:

AFC

Arkansas Fire Prevention Code

State Fire Marshal's Office

#1 State Police Plaza Dr

Little Rock, AR 72209

(501) 618-8624

Fax (501) 618-8621

  

Standard

Reference

Number

Title

Referenced

in Code

Section Number

AFC

.........................

104.3

AMC

Arkansas Mechanical Code

Department of Health

Division of Protective Health Codes

4815 West Markham Street, Slot 24

Little Rock, AR 72205-3867

(501) 661-2642

Fax (501) 661-2671

http://www.healthyarkansas.com/phc/

  

Standard

Reference

Number

Title

Referenced

in Code

Section Number

AMC ....

.......................

503.3.3.4, 503.3.3.4.1, 503.3.3.4.2, 803.2.5, 803.2.6, 803.2.8.1, 803.2.8.1.1, 803.2.8.1.2, 803

1 The word "component" for the purposes of this code is defined as being a particular segment of a building such as a wall, ceiling, or floor. Hence, the terms wall component or ceiling component.

(9/13/2004)

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