1. Residential Provisions
2009 IECC TRAINING
Residential Provisions
Energy
Systems
Laboratory

2. Energy Systems Laboratory (ESL)
2009 IECC TRAINING
Presented by:
Energy Systems Laboratory (ESL)
Texas A&M University
Assists municipalities and counties determine the relative impacts of local amendments to the code
Report the status and effect of energy & emissions as impacted by local codes
Provides energy code training

3. 2009 IECC TRAINING Agenda Introductions
Legislative Background Information
SECO Rule Making
Regional Efforts
Chapters 1 to 4, 2009 IECC
International Code Compliance Calculator – IC3
Demonstration of IC3

4. Introductions Me - Ed Dryden 12 Years HVAC Industry Experience
25 years experience in municipal code enforcement
Certified Building Official & other ICC Certifications
IAS Committee Member for 3 Years
Member of North Central Texas Council of Government’s Building & Energy Code Advisory Board
Current Building Official, City in North Texas
Instruct energy code workshops for ESL for 4 years
 You…..

5. American Recovery and Reinvestment Act
General Requirements of ARRA
Target Benchmarks:
2009 IECC for Residential
ASHRAE for Commercial
90% compliance:
Model Energy Codes (state-developed) exceeding 2009 IECC or
SB16 is Texas’ response
(adopted 09 IECC effective 2012)

6. Legislative Background Information
In 2001 (SB 5) the legislature made the finding that an effective building energy code is essential to:
(1)  reducing the air pollutant emissions that are affecting the health of residents of this state;
(2)  moderating future peak electric power demand;
(3)  assuring the reliability of the electrical grid; and
(4)  controlling energy costs for residents and businesses in this state.

7. Legislative Background Information
To accomplish these findings:
1. The energy efficiency chapter of the IRC, (2000/2001 supplement) was adopted as the energy code in this state for single-family residential construction, and
2.  The IECC (2000/2001 supplement) was adopted as the energy code in this state for all other residential, commercial, and industrial construction.

8. Legislative Background Information
 A City shall establish procedures:
(1)  for administration and enforcement; and
(2)  to ensure that code-certified inspectors shall perform energy inspections
A City may establish procedures to adopt local amendments to the energy codes, but
Local amendments may not result in less stringent energy efficiency requirements in nonattainment areas and in affected counties, and
Local amendments must comply with the National Appliance Energy Conservation Act

9. Texas’ Non-attainment and Near Non-attainment Areas

10. Legislative Background Information
If the SECO determines, based on written recommendations from the ESL,
that the energy efficiency provisions of the latest editions of the IRC or the IECC for residential or commercial energy efficiency and air quality are equivalent to or more stringent than the base codes,
SECO may by rule adopt and substitute in the energy code the equivalent or more stringent editions

11. Legislative Background Information
Effective January 1, 2012, the energy efficiency provisions of the International Residential Code as they existed on May 1, 2009, are adopted as the energy code in this state for single-family residential construction
Effective April 1, 2011, the International Energy Conservation Code as it existed on May 1, 2009, is adopted as the energy code for use in this state for all residential, commercial, and industrial construction that is not single-family residential
NOTE: Single family is defined as 1& 2 family detached dwellings and townhomes in the statute

12. Legislative Background Information
ESL, at the request of a City, shall determine the relative impact of proposed local amendments to an energy code, including whether proposed amendments are substantially equal to or less stringent than the unamended code. 
For the purpose of establishing uniform requirements throughout a region, and on request of a council of governments, a county, or a municipality, the laboratory may recommend a climatically appropriate modification or a climate zone designation for a county or group of counties that is different from the climate zone designation in the unamended code.

13. Legislative Background Information
North Central Texas Council of Governments has reviewed and provided “recommended” amendments to the 2009 IECC and the energy provisions of the 2009 IRC
“Recommended” amendments have been reviewed and approved by ESL as not less stringent
Available for viewing and download at:

14. Chapter 1 Administrative Provisions
101.2 Scope.
This code applies to residential and commercial buildings .
101.3 Intent.
This code shall regulate the design and construction of buildings for the effective use of energy. This code is intended to provide flexibility to permit the use of innovative approaches and techniques to achieve the effective use of energy. This code is not intended to abridge safety, health or environmental requirements contained in other applicable codes or ordinances.

15. Chapter 1 Administrative Provisions
101.4 Applicability.
Where, in any specific case, different sections of this code specify different materials, methods of construction or other requirements, the most restrictive shall govern. Where there is a conflict between a general requirement and a specific requirement, the specific requirement shall govern.
Existing buildings.
Except as specified in this chapter, this code shall not be used to require the removal, alteration or abandonment of, nor prevent the continued use and maintenance of, an existing building or building system lawfully in existence at the time of adoption of this code.

16. Chapter 1 Administrative Provisions NCTCOG Recommended Amendment
Historic Buildings. Any building or structure that is listed in the State or National Register of Historic Places; designated as a historic property under local or state designation law or survey; certified as a contributing resource with a National Register listed or locally designated historic district; or with an opinion or certification that the property is eligible to be listed on the National or State Registers of
Historic Places either individually or as a contributing building to a historic district by the State Historic Preservation Officer of the Keeper of the National Register of Historic Places, are exempt from shall comply with all of the provisions of this code.
Exception: Whenever a provision or provisions shall invalidate or jeopardize the historical designation or listing, that provision or provisions

17. Chapter 1 Administrative Provisions
Additions, alterations, renovations or repairs.
Additions, alterations, renovations or repairs to an existing building, building system or portion thereof shall conform to the provisions of this code as they relate to new construction without requiring the unaltered portion(s) of the existing building or building system to comply with this code.
Additions, alterations, renovations or repairs shall not create an unsafe or hazardous condition or overload existing building systems.
An addition shall be deemed to comply with this code if the addition alone complies or if the existing building and addition comply with this code as a single building.

18. Chapter 1 Administrative Provisions 101. 4
Chapter 1 Administrative Provisions Additions, alterations, renovations and repair
4 New Exceptions in 09 IECC
5. Reroofing for roofs where neither the sheathing nor the insulation is exposed. Roofs without insulation in the cavity and where the sheathing or insulation is exposed during reroofing shall be insulated either above or below the sheathing.
6. Replacement of existing doors that separate conditioned space from the exterior shall not require the installation of a vestibule or revolving door, provided, however, that an existing vestibule that separates a conditioned space from the exterior shall not be removed,
7. Alterations that replace less than 50 percent of the luminaires in a space, provided that such alterations do not increase the installed interior lighting power.
8. Alterations that replace only the bulb and ballast within the existing luminaires in a space provided that the alteration does not increase the installed interior lighting power.

19. Chapter 1 Administrative Provisions
Change in occupancy or use.
Spaces undergoing a change in occupancy that would result in an increase in demand for either fossil fuel or electrical energy shall comply with this code. Where the use in a space changes from one use in Table to another use in Table , the installed lighting wattage shall comply with Section
Change in space conditioning.
Any nonconditioned space that is altered to become conditioned space shall be required to be brought into full compliance with this code.
Mixed occupancy.
Where a building includes both residential and commercial occupancies, each occupancy shall be separately considered and meet the applicable provisions of Chapter 4 for residential and Chapter 5 for commercial .

20. Chapter 1 Administrative Provisions
101.5 Compliance.
Residential buildings shall meet the provisions of Chapter 4. Commercial buildings shall meet the provisions of Chapter 5.
Compliance materials.
The code official shall be permitted to approve specific computer software, worksheets, compliance manuals and other similar materials that meet the intent of this code.
Low energy buildings.
The following buildings, or portions thereof, separated from the remainder of the building by building thermal envelope assemblies complying with this code shall be exempt from the building thermal envelope provisions of this code:
1. Those with a peak design rate of energy usage less than 3.4 Btu/h • ft2 (10.7 W/m2) or 1.0 watt/ft2 (10.7 W/m2) of floor area for space conditioning purposes.
2. Those that do not contain conditioned space .

21. Chapter 1 Administrative Provisions NCTCOG Recommended Amendment
Alternative compliance. A building certified by a national, state, or local accredited energy efficiency program and determined by the Energy Systems Laboratory to be in compliance with the energy efficiency requirements of this section may, at the option of the Code Official, be considered in compliance. The United States Environmental Protection Agency's Energy Star Program certification of energy code equivalency shall be considered in compliance.
Reflects the mandate of Texas HB 1365, 78th Legislature

22. Chapter 2 Definitions
Air Barrier - Material(s) assembled and joined together to provide a barrier to air leakage through the building envelope. An air barrier may be a single material or a combination of materials.
Alteration - Any construction or renovation to an existing structure other than repair or addition that requires a permit. Also, a change in a mechanical system that involves an extension, addition or change to the arrangement, type or purpose of the original installation that requires a permit.
High-Efficacy Lamps. Compact fluorescent lamps, T-8 or smaller diameter linear fluorescent lamps, or lamps with a minimum efficacy of:
1. 60 lumens per watt for lamps over 40 watts,
2. 50 lumens per watt for lamps over 15 watts to 40 watts, and
3. 40 lumens per watt for lamps 15 watts or less.

23. Chapter 2 Definitions
Residential Building - For this code, includes R-3 buildings, as well as R-2 and R-4 buildings three stories or less in height above grade.
Roof Assembly - A system designed to provide weather protection and resistance to design loads. The system consists of a roof covering and roof deck or a single component serving as both the roof covering and the roof deck. A roof assembly includes the roof covering, underlayment, roof deck, insulation, vapor retarder and interior finish.
Sunroom - A one-story structure attached to a dwelling with a glazing area in excess of 40 percent of the gross area of the structure's exterior walls and roof.
Thermal Isolation - Physical and space conditioning separation from conditioned space(s) . The conditioned space (s) shall be controlled as separate zones for heating and cooling or conditioned by separate equipment.

24. Chapter 3 Climate Zones

25. Chapter 3 Climate Zones
302.1 Interior design conditions. The interior design temperatures used for heating & cooling load calculations shall be a maximum of 72°F for heating and minimum of 75°F for cooling.
303.1 Identification. Materials, systems and equipment shall be identified…
Building thermal envelope insulation.
Insulation marked with an R -value ; or,
The insulation installers shall provide a certification listing the type, manufacturer and R -value of insulation installed in each element of the building thermal envelope .

26. Chapter 3 Climate Zones 303.1.1 Building thermal envelope insulation.
For blown or sprayed insulation (fiberglass and cellulose):
the initial installed thickness,
settled thickness,
settled R -value,
installed density,
coverage area, and
number of bags
For sprayed polyurethane foam (SPF) insulation:
the installed thickness of the areas covered, and
R- value of installed thickness shall be listed on the certification.
The insulation installer shall sign, date and post the certification in a conspicuous location on the job site.

27. Chapter 3 Climate Zones
Blown or sprayed roof/ceiling insulation.
The thickness of blown-in or sprayed roof/ceiling insulation (fiberglass or cellulose) shall be written in inches on markers that are installed at least one for every 300 square feet throughout the attic space. The markers shall be affixed to the trusses or joists and marked with the minimum initial installed thickness with numbers a minimum of 1 inch in height. Each marker shall face the attic access opening. Spray polyurethane foam thickness and installed R- value shall be listed on certification provided by the insulation installer.
Insulation mark installation.
Insulating materials shall be installed such that the manufacturer's R -value mark is readily observable upon inspection.

28. Chapter 3 Climate Zones 303.1.3 Fenestration product rating.
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.
Products lacking such a labeled U -factor shall be assigned a default U -factor from Table (1) or (2).
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.
Products lacking such a labeled SHGC shall be assigned a default SHGC from Table (3).

29. Chapter 3 Climate Zones
(insert table)

30. DEFAULT GLAZED FENESTRATION SHGC
Chapter 3 Climate Zones
TABLE (3)
DEFAULT GLAZED FENESTRATION SHGC
(insert table)

31. Chapter 3 Climate Zones
(insert table)

32. Chapter 3 Climate Zones NEW in 2009 IECC
Insulation product rating. The thermal resistance (R- value) of insulation shall be determined in accordance with the U.S. Federal Trade Commission R -value rule (CFR Title 16, Part 460, May 31, 2005) in units of h × ft2 × °F/Btu at a mean temperature of 75°F (24°C).

33. Chapter 4 Residential Provisions
RESIDENTIAL ENERGY EFFICIENCY
SECTION 401 – GENERAL
SECTION BUILDING THERMAL ENVELOPE
SECTION 403 – SYSTEMS
SECTION ELECTRICAL POWER AND LIGHTING SYSTEMS
SECTION SIMULATED PERFORMANCE ALTERNATIVE (Performance)

34. Chapter 4 Compliance Options
401.1 Scope - This chapter applies to residential buildings.
401.2 Compliance - Must comply with either prescriptive provisions:
402.1 thru (Insulation & Fenestration),
(Duct Insulation) , and
404 (Lighting)
Or:
405 – Performance provisions
AND……..
8 Mandatory Provisions

35. Chapter 4 Residential Provisions
8 Mandatory Provisions:
401 – Compliance statement
402.4 – Air leakage Requirements
402.5 – Max fenestration U-factor & SHGC (Area weighted averages)
403.1 – Mechanical Systems Controls
–HVAC Duct Sealing
– Building Cavities not used as supply ducts
403.3 thru – Piping insulation, ventilation, complex systems, snow melt, and swimming pools

36. Chapter 4 401.3 Certificate NEW in 2009 IECC
401.3 Certificate - A permanent certificate
Shall be posted on or in the electrical distribution panel
Shall be completed by the builder or registered design professional
Shall list the predominant R -values of insulation installed in or on ceiling/roof, walls, foundation (slab, basement wall, crawlspace wall and/or floor) and ducts outside conditioned spaces; U -factors for fenestration and the solar heat gain coefficient (SHGC) of fenestration
Shall list the types and efficiencies of heating, cooling and service water heating equipment
ID "gas-fired unvented room heater," "electric furnace" or "baseboard electric heater," as appropriate
An efficiency shall not be listed for gas-fired unvented room heaters, electric furnaces or electric baseboard heaters.

37. Chapter 4 Residential Provisions
Simulated Performance
(software)
Prescriptive
Component values from:
Table
Plus Mandatory
Provisions
U-Factor and “UA” Alternatives
U-factor or
Total Building UA
Simulated Performance Alternative
405

38. Chapter 4 Residential Provisions

39. Chapter 4 402.2 Specific insulation requirements (Prescriptive).
Ceilings with attic spaces - Where R38 is required, may be reduced to R30 when raised heel trusses are used. Same trade off if R49 is required - R38 allowed when raised heel trusses are used.
Ceilings without attic spaces - Where insulation levels above R-30 are required and the design of the roof/ceiling assembly does not allow sufficient space for the required insulation, the minimum required insulation for such roof/ceiling assemblies shall be R-30 but only limited to 500 square feet (46 m2) or 20 percent of the total insulated ceiling area, whichever is less.
Neither of these applicable to U-factor alternative approach

40. Chapter 4 Residential Provisions
R- value computation. Insulation material used in layers, such as framing cavity insulation and insulating sheathing, shall be summed to compute the component R -value. The manufacturer's settled R -value shall be used for blown insulation. Computed R -values shall not include an R -value for other building materials or air films.
U -factor alternative. An assembly with a U -factor equal to or less than that specified in Table shall be permitted as an alternative to the R -value in Table
U -factor alternative shall include the thermal bridging effects of framing materials and the SHGC requirements shall be met in addition to UA compliance.

41. Chapter 4 Residential Provisions

42. Chapter 4 - Residential Provisions 402.1.3 - U-Factors Alternative
An assembly (roof, wall, floor) with a U-factor equal to or less than value specified in Table is permitted as an alternative to the R-value specified in Table (prescriptive table)

43. Chapter 4 - Residential Provisions Calculating Assembly U-Factors
An area-weighted average U-factor is calculated for the wall system that takes into account the effects of framing and systems
An R-value must be determined for each different material in the assembly
The R-values are then totaled to determine the total R-value through each thermal path of the assembly
The total R-values are then converted to U-factors by taking the reciprocal of the R-value

44. Sample Calculation - Walls
(Uwl x Awl) + (Uw2 x Aw2) + …
Uow =
Aw1 + Aw2 + …
Where
Uwl = U-factor of opaque wall number 1
Awl = Area of opaque wall number 1
Uw2 = U-factor of opaque wall number 2
Aw2 = Area of opaque wall number 2

45. Total UA Alternative
The building envelope design is permitted to deviate from R-values or U-factors in Tables or , respectively, provided the total thermal transmittance (UA) is the same or less as the very same building envelope geometry designed to code
The calculation shall be done using a method consistent with the ASHRAE Handbook of Fundamentals and shall include the thermal bridging effects of framing materials
SHGC requirements shall be met

46. Access doors from conditioned to unconditioned spaces shall be:
Access Hatches and Doors Specific insulation requirements (Prescriptive)
Access doors from conditioned to unconditioned spaces shall be:
Weather-stripped
Insulated to the equivalent R-value on the surrounding surfaces
A wood framed baffle or retainer is required to be provided when loose fill insulation is installed

47. 402.2.4 Mass Walls Specific insulation requirements (Prescriptive)
For residential purposes above-grade walls are:
Concrete block
Concrete
Insulated concrete form (ICF)
Masonry cavity
Brick (other than brick veneer)
Earth
Adobe
Compressed earth block
Rammed earth
Solid timber/logs

48. 402.2.5 Steel Framing Specific insulation requirements (Prescriptive)
Steel framing ceilings, walls and floors shall meet the insulation requirements of Table or the U-factor requirements in Table
Dietrich Metal Framing

49. 402.2.6 Floors Specific insulation requirements (Prescriptive)
Floor insulation shall be installed to maintain permanent contact with the underside of the subfloor decking

50. 402.2.7 Basement Walls Specific insulation requirements (Prescriptive)
Defined as walls greater than or equal to 50 percent below grade
Insulate from the top of the basement wall down 10 feet below grade or to the basement floor, whichever is less

51. 402.2.8 Slab-on-grade Floors Specific insulation requirements (Prescriptive)

52. 402.2.9 Crawl Space Walls Specific insulation requirements (Prescriptive)
Criteria:
Must be insulated to the R-value specified in the energy code
May not have ventilation openings that communicate directly with outside air
Must be mechanically ventilated or supplied with conditioned air
Exposed earth floors must be covered with an approved vapor retarder material, which extends up the stem wall and is sealed and taped to the wall
Noel’s Green Blog

53. 402.2.11 & 402.3.5 Thermally Isolated Sunroom Specific insulation & fenestration (Prescriptive)
Requirements:
Separate zones for heating and cooling or conditioned by separate equipment
Must maintain thermal isolation
Thermal Isolation – Physical and space conditioning separation from conditioned spaces
Minimum wall R-value shall be R-13 (Section )
Minimum ceiling R-value shall be R-19 in zones 1-4 and R-24 in zones 5-8 (Section )
The glass used must have a maximum U-factor of 0.50 inches and skylights U-factor of 0.75 in climate zones 4-8 (Section )

54. 402.2.11 & 402.3.5 Thermally Isolated Sunroom Specific insulation & fenestration (Prescriptive)

55. 402.3 Fenestration. (Prescriptive) U-factor and SHGC
Area weighted average of fenestration products may be used to satisfy the U-factor requirements
Area weighted average of fenestration products with more than 50 percent glazing may be used to satisfy the SHCG requirements

56. Glazed fenestration & opaque door exemption 402. 3 Fenestration
Glazed fenestration & opaque door exemption Fenestration. (Prescriptive)
Up to 15 ft2 of glazed fenestration per dwelling unit can be exempted from U-factor and SHGC requirements
One side-hinged opaque door assembly up to 24 square feet shall be exempt from U-factor and SHCG requirements
Replacement fenestration. When an existing fenestration unit is replaced with a new fenestration product, including sash and glazing, the replacement fenestration unit shall meet the applicable requirements for U -factor and SHGC in Table

57. Physical Inspection 402.4 Air leakage (Mandatory)
– Building thermal envelope
Durably sealed to limit infiltration
– Air Sealing and Insulation
Building envelope air tightness and insulation shall be demonstrated in one of two ways
Testing option
Visual inspection option
Follows Table and where required by the code official, an approved party independent from the installer of the insulation shall inspect the air barrier and insulation

58. Testing Option 402.4 Air leakage (Mandatory)
Acceptable when tested air leakage is less than seven air changes per hour (ACH) at a pressure of 33.5 psf (50 Pa)
There are seven requirements
1. Exterior windows and doors, fireplaces and stove doors closed, but not sealed
2. Dampers shall be closed but not sealed
3. Interior doors open
4. Exterior openings for continuous ventilation systems and heat recovery ventilators closed and sealed
5. Heating and cooling systems turned off
6. HVAC shall not be sealed
7. Supply and return registered shall not be sealed

59. Blower Door Test 402.4 Air leakage (Mandatory)

60. 402.4.3 Fireplaces 402.4 Air leakage (Mandatory)
New wood-burning fireplaces shall have gasketed doors and outdoor combustion air

61. Recessed Lighting 402.4 Air leakage (Mandatory)
Recessed lighting. Recessed luminaires shall be sealed to limit air leakage between conditioned and unconditioned spaces. All recessed luminaires shall be IC-rated and labeled as meeting ASTM E 283 when tested at 1.57 psf (75 Pa) pressure differential with no more than 2.0 cfm (0.944 L/s) of air movement from the conditioned space to the ceiling cavity. All recessed luminaires shall be sealed with a gasket or caulk between the housing and the interior wall or ceiling covering.

62. 402.5 Maximum U-factor and SHCG
Area-weighted average max U-factor using trade-offs from (Total UA) or 405 shall be
Zones 4 and 5 is 0.48
Zones 6 – 8 is 0.40
Skylights
Zones 4 – 8 is 0.75
Area-weighted average max SHGC from Section 405 (Performance)
Zones 1 – 3 is 0.50

63. SECTION 403, SYSTEMS Controls
403.1 Controls (Mandatory) - At least one thermostat shall be provided for each separate heating and cooling system.
Programmable thermostat - One thermostat per dwelling unit shall be capable of controlling the heating and cooling system
Daily schedule to maintain different temperature set points at different times of the day.
Set back or temporarily operate the system to maintain zone temperatures down to 55°F or up to 85°F
The thermostat shall initially be programmed with a heating temperature set point no higher than 70°F (21°C) and a cooling temperature set point no lower than 78°F (26°C).
Heat pump supplementary heat (Mandatory) - Heat pumps having supplementary electric-resistance heat shall have controls that, except during defrost, prevent supplemental heat operation when the heat pump compressor can meet the heating load.

64. 403.2 Ducts Duct Insulation – New 09 Requirement
Supply ducts in attics shall be R-8 min
All other ducts shall be R-6 min
Exception
Ducts located completely inside the building thermal envelope

65. 403.2 Ducts Duct Sealing – New 09 Requirement
– Sealing (Mandatory)
All ducts, air handlers, filter boxes and building cavities used as ducts shall be sealed in accordance with Section M IRC
Duct tightness shall be verified by testing
Post-construction or rough-in
The test is not required where the air handler and entire duct system are located within conditioned space.

66. 403.2.3 Building cavities 403.3 Mechanical system piping insulation
Building cavities (Mandatory).
Building framing cavities shall not be used as supply ducts.
403.3 Mechanical system piping insulation (Mandatory).
Mechanical system piping capable of carrying fluids above 105°F (41°C) or below 55°F (13°C) shall be insulated to a minimum of R-3. (Suction lines…)

67. 403.4 Circulating Hot Water Insulation Controls
All hot water piping shall be R-2 min
Controls
Automatic controls OR
Readily accessible manual switch

68. Sizing and Multiple Dwelling Units
403.6 Equipment Sizing
Heating and cooling equipment shall be sized in accordance with IRC Section M1401.3
403.7 Systems serving Multiple Dwelling Units
All systems serving multiple dwelling units shall comply with Sections 503 and 504 in lieu of Section 403

69. 403.8 Snow Melt System Controls
Snow and ice-melting equipment controls
Automatic controls capable of shutting down the system when
The pavement temperature is above 50oF and no precipitation is falling AND
An automatic or manual control that will allow shutoff when the outdoor temperature is above 40oF
Heated Driveway Systems

70. Section Pools
Energy conservation requirements are required for pools, including time switches to turn pumps and heaters off and vapor retardant covers.

71. Time Switches
Time switches to automatically turn off and on heaters and pumps according to a preset schedule shall be installed on swimming pool heaters and pumps.
Exceptions
Where public health standards require 24 hour operation
Where the pumps are required to operate solar-waste-heat recovery heating systems

72. Vapor retardant on or at the water surface
Pool Cover
Vapor retardant on or at the water surface
Required on all heated pools
Heated to 90oF or more
Require a minimum R-12
Exception
60% energy for heating from site-recovered or solar energy source

73. 404.1 Lighting Equipment
A minimum of fifty percent of the lamps in permanently installed lighting fixtures shall be high-efficacy lamps.

74. Break
15 minutes

75. 405 Simulated Performance Alternative
An energy estimation tool is used to compare the energy use of the proposed design with that of the standard design building, may meet or exceed the minimum code requirements.

76. 405.1 Scope and 405.2 Mandatory Requirements
Scope – analysis include only
Heating,
Cooling, and
Service water heating
Mandatory requirements
All 8 provisions of 401.2, and
All ducts not inside building envelope insulated to minimum R-6

77. 405.4 Documentation 405.4.1 – Compliance Software Tools
Verifies that methods & accuracy conforms
– Compliance Report
Documents compliance and includes:
Address, inspection checklist, name of person completing report, and name & version of software
– Additional Documentation
Building component characteristics, certification signed by builder, and actual values used in calcs

78. Table (1)
Table (1) - Specifications for the standard reference and proposed designs
Building component
Standard reference design
Proposed design
Footnotes
Table (2) Default Distribution System Efficiencies for Proposed Designs

81. Examples of Performance Tools
Home Energy Rating Systems (HERS) – REMrate
DOE 2 – Department of Energy
Energy Gauge
International Code Compliance Calculator

82. IC3 International Code Compliance Calculator
Developed by ESL w/ cooperative efforts of TCEQ and USEPA
Simple straight forward approach, User friendly – Web Based
Will generate a “Certificate” that demonstrates compliance
Calculates “actual” emissions
Captures above code credits for SIP
Free! Free! Free! Free! Free!

83. International Code Compliance Calculator User Requirements
Need general construction knowledge
Need IECC/IRC code knowledge
Need to be familiar with Windows based PC approaches & using Internet
Need project specific information:
Location: county & street address, orientation
Floor/wall/ceiling areas/heights/dimensions/shading
Window areas, U values & SHGC values
Insulation values
Mechanical efficiencies & hot water heating efficiencies

84. International Code Compliance Calculator
Web browser interface inputs data to 2 main frame based software packages
One to DOE 2- to calculate code compliance
The other to EGRID, electric grid calculation tool
Knows what % of electricity comes from different power plants
Knows the fuel makeup of the power plants
Calculates emissions reductions as compared to code complaint house

85. International Code Compliance Calculator Construction Details
Perform a take off on the house
Information Required:
General information: address, county, builder and any notes unique to project
Wall(s), floor(s), ceiling(s) area(s) & insulation values (area weighted averages)
House orientation
Exterior wall and roof construction materials
Number of sleeping rooms
Roof overhang distances (window shading)
Foundation perimeter of thermal envelope
Window areas and U-factors and SHGC values

86. International Code Compliance Calculator Construction Details (Cont’d)
Information Required (continued):
HVAC size and efficiency rating
Duct insulation (trade offs allowed from R8 to R6)
Location of ducts and equipment (attic or in conditions space)
Duct blaster testing results, estimate; door blower testing option
Water heater efficiency
Radiant barrier used
Fuel source (electricity or natural gas)

87. International Code Compliance Calculator
Let’s Get Started!...
The first thing you need to do is type
in your browser
8787

102. Free download of 2009 IECC available at:
Q & A
Free download of 2009 IECC available at: