Current through Register Vol. 49, No. 2, February 2024
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
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 component
1
performance -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 TYPE
a |
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 DATE112.1 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:
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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.
