# ICC CODES - PUBLIC COMMENT FORM![](media/image1.png){width="1.1319444444444444in" height="1.4430555555555555in"}

## FOR PUBLIC COMMENTS ON THE 2003/2004 "REPORT OF THE PUBLIC HEARINGS" 

***PLEASE SEE INSTRUCTIONS (SUBMITTAL RULES OF PROCEDURES). ALL
SUBMITTALS MUST BE IN COMPLIANCE WITH THESE PROCEDURES.***

> **CLOSING DATE: [All Comments Must Be Received On or Before January
> 14, 2004]{.underline}**

1)  **Indicate the format in which you would like to receive your Final
    Action Agenda (FAA):** (\*Note: A paper copy will not be sent to you
    if you have chosen to download the FAA from the ICC Web Site.)

**2) [PLEASE TYPE OR PRINT CLEARLY]{.underline}: [FORMS WILL BE RETURNED
if they contain unreadable information.]{.underline}**

  ---------------------------------------------------------------------------------------------------------------------------------------------
  Name:                                               Ronald Majette                                                      Date:   January 14,
                                                                                                                                  2004
  ----------------------- --------------------------- -------------- ------------ -------- -------- ------ -------------- ------- -------------
  Jurisdiction/Company:                                              U.S.                                                         
                                                                     Department                                                   
                                                                     of Energy                                                    

  Submitted on Behalf of:                                            U.S.                                                         
                                                                     Department                                                   
                                                                     of Energy                                                    

  Address:                                            1000                                                                        
                                                      Independence                                                                
                                                      Avenue, EE-2J,                                                              
                                                      1J-018                                                                      

  City:                   Washington                                              State:   DC       Zip    20585                  
                                                                                                    +4:                           

  Phone:                  202-586-7935                                            Ext:              Fax:   202-486-4617           

  e-mail:                 ronald.majette@ee.doe.gov                                                                               
  ---------------------------------------------------------------------------------------------------------------------------------------------

**3) \*Signature:**

\*I hereby grant the International Code Council the nonexclusive,
royalty-free rights, including nonexclusive, royalty-free rights in
copyright in this Comment and I understand that I acquire no rights in
any publication of International Code Council (ICC), in which this
Comment in this or another similar analogous form is used. I hereby
attest that I have the authority and I am empowered to grant this
copyright release.

  -------- ------------------------------------------------ ------------------
  **4)**   Indicate the Code Change Proposal \# that is      EC48-03/04 -- IRC
           being addressed by this Public Comment:          portion

  -------- ------------------------------------------------ ------------------

  -------- -------- ------- -- -------- -- -- -- ------- -- -------------------------------------------------
  **5)**   **I      **X**      **do**            **do       agree with the recommendation of the Code
           (we)**                                not**      Committee ** **

  -------- -------- ------- -- -------- -- -- -- ------- -- -------------------------------------------------

**6) [COMMENT]{.underline} -- The Final Action I (we) request on the
indicated Code Change Proposal is: (check BOX):**

  -- -- ------------ -- ------- -- ------------- -- -- -- ------------- -- -- -- -------------- -- -- -- ---------------
        **Approved      **X**      **Approved as          **Approved as          **Approved as           **Disapproved
        as Submitted               Modified** by          Modified** by          Modified** by           (D):**
        (AS):**                    this Public            the Code               Assembly                
                                   Comment                Committee as           Action as               
                                   (AMPC)**:**            Published in           Published in            
                                                          the ROH (AM):          the ROH                 
                                                                                 (AMAA)**:**             

  -- -- ------------ -- ------- -- ------------- -- -- -- ------------- -- -- -- -------------- -- -- -- ---------------

**7)** **Proposed Modification**:

**R408.2 Unvented crawl space**. Ventilation openings in under-floor
spaces specified in Sections R408.1 and R408.2 shall not be required
where:

1\) Exposed earth is covered with a continuous vapor retarder. All
joints of the vapor retarder shall overlap by 6 inches (153 mm) and
shall be sealed or taped. The edges of the vapor retarder shall extend
at least 6 inches (153 mm) up the stem wall and shall be attached and
sealed to the stem wall,

2\) And one of the following is provided for the under-floor space:

> a\. Continuously operated mechanical exhaust ventilation at a rate
> equal to 1 cfm for each 50 ft^2^ of crawl space floor area, including
> ~~a return~~ [an air]{.underline} pathway [to the common
> area]{.underline} (such as a duct or transfer grille ~~to the common
> area~~), and perimeter walls insulated in accordance with Section
> N1102.2.8, or
>
> b\. Conditioned air supply sized to deliver at a rate equal to 1 cfm
> for each 50 ft^2^ of under-floor area, including a return air pathway
> to the common area (such as a duct or transfer grille), and perimeter
> walls insulated in accordance with Section N1102.2.8, or
>
> c\. Plenum complying with M1601.4, if under floor spaces used as a
> plenum.

# 

# CHAPTER 11

# Energy Efficiency

**~~Table N1101.5.~~**

**~~U-Factor Default Table for Windows, Glazed Doors And Skylights~~**

+-------------------------------------------+------------+-------------+
| **~~Frame Material and Product            | **~~Single | **~~Double  |
| Type^a^~~**                               | Glazed~~** | Glazed~~**  |
+-------------------------------------------+------------+-------------+
| ~~Metal without thermal break:~~          | ~~1.22~~   | ~~0.79~~    |
|                                           |            |             |
| ~~Curtain wall~~                          | ~~1.13~~   | ~~0.69~~    |
|                                           |            |             |
| ~~Fixed~~                                 | ~~2.60~~   | ~~1.81~~    |
|                                           |            |             |
| ~~Garden window~~                         | ~~1.27~~   | ~~0.87~~    |
|                                           |            |             |
| ~~Operable (including sliding and         | ~~1.36~~   | ~~0.82~~    |
| swinging glass doors)~~                   |            |             |
|                                           | ~~1.98~~   | ~~1.31~~    |
| ~~Site-assembled sloped/overhead          |            |             |
| glazing~~                                 |            |             |
|                                           |            |             |
| ~~Skylight~~                              |            |             |
+-------------------------------------------+------------+-------------+
| ~~Metal with thermal break:~~             | ~~1.11~~   | ~~0.68~~    |
|                                           |            |             |
| ~~Curtain wall~~                          | ~~1.07~~   | ~~0.63~~    |
|                                           |            |             |
| ~~Fixed~~                                 | ~~1.08~~   | ~~0.65~~    |
|                                           |            |             |
| ~~Operable (including sliding and         | ~~1.25~~   | ~~0.70~~    |
| swinging glass doors)~~                   |            |             |
|                                           | ~~1.89~~   | ~~1.11~~    |
| ~~Site-assembled sloped/overhead          |            |             |
| glazing~~                                 |            |             |
|                                           |            |             |
| ~~Skylight~~                              |            |             |
+-------------------------------------------+------------+-------------+
| ~~Reinforced vinyl/metal clad wood:~~     | ~~0.98~~   | ~~0.56~~    |
|                                           |            |             |
| ~~Fixed~~                                 | ~~0.90~~   | ~~0.57~~    |
|                                           |            |             |
| ~~Operable (including sliding and         | ~~1.75~~   | ~~1.05~~    |
| swinging glass doors)~~                   |            |             |
|                                           |            |             |
| ~~Skylight~~                              |            |             |
+-------------------------------------------+------------+-------------+
| ~~Wood/vinyl/fiberglass:~~                | ~~0.98~~   | ~~0.56~~    |
|                                           |            |             |
| ~~Fixed~~                                 | ~~2.31~~   | ~~1.61~~    |
|                                           |            |             |
| ~~Garden window~~                         | ~~0.89~~   | ~~0.55~~    |
|                                           |            |             |
| ~~Operable (including sliding and         | ~~1.47~~   | ~~0.84~~    |
| swinging glass doors)~~                   |            |             |
|                                           |            |             |
| ~~Skylight~~                              |            |             |
+-------------------------------------------+------------+-------------+

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

[**Table N1101.5(1).**]{.underline}

**[Default Glazed Fenestration U-Factors]{.underline}**

  ----------------------------- --------------------- --------------------- ---------------------------- --------------------------
  **[Frame Type]{.underline}**  **[Single             **[Double             **[Skylight]{.underline}**   
                                Pane]{.underline}**   Pane]{.underline}**                                

                                                                            **[Single]{.underline}**     **[Double]{.underline}**

  [Metal]{.underline}           [1.20]{.underline}    [0.80]{.underline}    [2.00]{.underline}           [1.30]{.underline}

  [Metal with Thermal           [1.10]{.underline}    [0.65]{.underline}    [1.90]{.underline}           [1.10]{.underline}
  Break]{.underline}                                                                                     

  [Non-Metal or Metal           [0.95]{.underline}    [0.55]{.underline}    [1.75]{.underline}           [1.05]{.underline}
  Clad]{.underline}                                                                                      

  [Glazed Block]{.underline}    [0.60]{.underline}                                                       
  ----------------------------- --------------------- --------------------- ---------------------------- --------------------------

[**Table N1101.5(2).**]{.underline}

**[Default Door U-Factors]{.underline}**

  ------------------------------------------------------- ----------------------------
  **[Door Type]{.underline}**                             **[U-factor]{.underline}**

                                                          

  [Uninsulated Metal]{.underline}                         [1.20]{.underline}

  [Insulated Metal]{.underline}                           [0.60]{.underline}

  [Wood]{.underline}                                      [0.50]{.underline}

  [Insulated, non-metal edge, max 45% glazing, any        [0.35]{.underline}
  glazing double pane]{.underline}                        
  ------------------------------------------------------- ----------------------------

**~~Table N1101.5(2)~~**

**~~SHGC Default Table for Fenestration~~**

+-----------------+----+------+-----+-----+-----+------+-----+-----+
| **~~Product     | ** |      |     |     | *   |      |     |     |
| Description~~** | ~~ |      |     |     | *~~ |      |     |     |
|                 | Si |      |     |     | Dou |      |     |     |
|                 | ng |      |     |     | ble |      |     |     |
|                 | le |      |     |     | G   |      |     |     |
|                 | Gl |      |     |     | laz |      |     |     |
|                 | az |      |     |     | ed~ |      |     |     |
|                 | ed |      |     |     | ~** |      |     |     |
|                 | ~~ |      |     |     |     |      |     |     |
|                 | ** |      |     |     |     |      |     |     |
+-----------------+----+------+-----+-----+-----+------+-----+-----+
|                 | *  | **   | *   | **~ | *   | **   | *   | **~ |
|                 | *~ | ~~Br | *~~ | ~Gr | *~~ | ~~Br | *~~ | ~Gr |
|                 | ~C | onze | Gre | ay~ | Cle | onze | Gre | ay~ |
|                 | le | ~~** | en~ | ~** | ar~ | ~~** | en~ | ~** |
|                 | ar |      | ~** |     | ~** |      | ~** |     |
|                 | ~~ |      |     |     |     | *    |     | **~ |
|                 | ** |      |     |     | **~ | *~~+ | **~ | ~+~ |
|                 |    |      |     |     | ~+~ | ~~** | ~+~ | ~** |
|                 |    |      |     |     | ~** |      | ~** |     |
|                 |    |      |     |     |     | *    |     | *   |
|                 |    |      |     |     | *   | *~~C | *   | *~~ |
|                 |    |      |     |     | *~~ | lear | *~~ | Cle |
|                 |    |      |     |     | Cle | ~~** | Cle | ar~ |
|                 |    |      |     |     | ar~ |      | ar~ | ~** |
|                 |    |      |     |     | ~** |      | ~** |     |
+-----------------+----+------+-----+-----+-----+------+-----+-----+
| ~~Metal         | ~~ | ~~0. | ~~  | ~~  | ~~  | ~~0. | ~~  | ~~  |
| frames~~        | 0. | 67~~ | 0.6 | 0.6 | 0.6 | 57~~ | 0.5 | 0.5 |
|                 | 78 |      | 5~~ | 4~~ | 8~~ |      | 5~~ | 4~~ |
| ~~Fixed~~       | ~~ | ~~0. |     |     |     | ~~0. |     |     |
|                 |    | 64~~ | ~~  | ~~  | ~~  | 55~~ | ~~  | ~~  |
| ~~Operable~~    | ~~ |      | 0.6 | 0.6 | 0.6 |      | 0.5 | 0.5 |
|                 | 0. |      | 2~~ | 1~~ | 6~~ |      | 3~~ | 2~~ |
|                 | 75 |      |     |     |     |      |     |     |
|                 | ~~ |      |     |     |     |      |     |     |
+-----------------+----+------+-----+-----+-----+------+-----+-----+
| ~~Nonmetal      | ~~ | ~~0. | ~~  | ~~  | ~~  | ~~0. | ~~  | ~~  |
| frames~~        | 0. | 64~~ | 0.6 | 0.6 | 0.6 | 54~~ | 0.5 | 0.5 |
|                 | 75 |      | 2~~ | 1~~ | 6~~ |      | 3~~ | 2~~ |
| ~~Fixed~~       | ~~ | ~~0. |     |     |     | ~~0. |     |     |
|                 |    | 54~~ | ~~  | ~~  | ~~  | 46~~ | ~~  | ~~  |
| ~~Operable~~    | ~~ |      | 0.5 | 0.5 | 0.5 |      | 0.4 | 0.4 |
|                 | 0. |      | 3~~ | 2~~ | 5~~ |      | 5~~ | 4~~ |
|                 | 63 |      |     |     |     |      |     |     |
|                 | ~~ |      |     |     |     |      |     |     |
+-----------------+----+------+-----+-----+-----+------+-----+-----+

[**Table N1101.5(3).**]{.underline}

**[Default Glazed Fenestration SHGC]{.underline}**

  --------------------- ---------------------- --------------------- ---------------------- --------------------
  [Single                                      [Double                                      [Glazed
  Glazed]{.underline}                          Glazed]{.underline}                          Block]{.underline}

  [Clear]{.underline}   [Tinted]{.underline}   [Clear]{.underline}   [Tinted]{.underline}   

  [0.7]{.underline}     [0.6]{.underline}      [0.6]{.underline}     [0.5]{.underline}      [0.6]{.underline}
  --------------------- ---------------------- --------------------- ---------------------- --------------------

**N1101.5 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[s]{.underline} N1101.5[(1) and N1101.5(2).]{.underline} 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 N1011.5(~~2~~[3]{.underline}).

**N1101.8 Certificate.** A permanent certificate shall be posted
~~inside~~ [on or in]{.underline} the electrical distribution panel. The
certificate shall be completed by the builder or registered design
professional. The certificate 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, where requirements
apply, the solar heat gain coefficient (SHGC) of fenestration. Where
there is more than one value for each component, the certificate shall
list the value covering the largest area. The certificate shall list the
type and efficiency of heating, cooling and service water heating
equipment.

~~**N1102.1.4 Prescriptive tradeoffs.** The tradeoffs specified in Table
N1102.1.4 shall be permitted as an alternative to Table N1102.1.~~

**~~Table N1102.1.4.~~**

**~~HVAC System Tradeoffs~~**

+------+---------------------------------+----------------------------+
| **~  | **~~Required Improvement for    | **~~Allowed Alternatives   |
| ~Cli | HVAC System~~**                 | for                        |
| mate |                                 | Insu                       |
| Zon  |                                 | lation/Fenestration^1^~~** |
| e(s) |                                 |                            |
| ~~** |                                 |                            |
+======+=================================+============================+
| ~    | ~~Ducts & HVAC in conditioned   | > ~~Any fenestration       |
| ~2~~ | space **OR**~~                  | > U-factor~~               |
|      |                                 |                            |
|      | > ~~Ground source heat pump~~   |                            |
+------+---------------------------------+----------------------------+
| ~    | > ~~Ducts & HVAC in conditioned | ~~Double pane window~~     |
| ~3~~ | > space **OR**~~                |                            |
|      | >                               | > ~~with any U-factor~~    |
|      | > ~~Ground source heat pump~~   |                            |
+------+---------------------------------+----------------------------+
| ~~4  | > ~~Ducts & HVAC in conditioned | ~~R-0 unconditioned        |
| or   | > space **OR**~~                | basement~~                 |
| 5~~  | >                               |                            |
|      | > ~~Ground source heat pump~~   | > ~~R-0 slab~~             |
|      |                                 | >                          |
|      |                                 | > ~~R-19 floor~~           |
+------+---------------------------------+----------------------------+
| ~    | > ~~Ducts & HVAC in conditioned | ~~R-13 wall~~              |
| ~5~~ | > space **OR**~~                |                            |
|      | >                               | > ~~R-19 floor~~           |
|      | > ~~Ground source heat pump~~   |                            |
+------+---------------------------------+----------------------------+
| ~    | > ~~Ducts & HVAC in conditioned | ~~R-38 ceiling~~           |
| ~6~~ | > space **OR**~~                |                            |
|      | >                               | > ~~R-13 wall~~            |
|      | > ~~Ground source heat pump~~   |                            |
+------+---------------------------------+----------------------------+
| ~    | > ~~Ducts & HVAC in conditioned | ~~R-38 ceiling~~           |
| ~7~~ | > space **OR**~~                |                            |
|      | >                               | > ~~R-15 wall~~            |
|      | > ~~Ground source heat pump~~   |                            |
+------+---------------------------------+----------------------------+
| ~~   |                                 |                            |
| Note |                                 |                            |
| s:~~ |                                 |                            |
|      |                                 |                            |
| 1.   |                                 |                            |
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| pes, |                                 |                            |
|      |                                 |                            |
|  uni |                                 |                            |
| nsul |                                 |                            |
| ated |                                 |                            |
|      |                                 |                            |
|  air |                                 |                            |
|      |                                 |                            |
| dist |                                 |                            |
| ribu |                                 |                            |
| tion |                                 |                            |
|      |                                 |                            |
|    d |                                 |                            |
| ucts |                                 |                            |
|      |                                 |                            |
|   or |                                 |                            |
|      |                                 |                            |
| elec |                                 |                            |
| tric |                                 |                            |
|      |                                 |                            |
|  hea |                                 |                            |
| ting |                                 |                            |
|      |                                 |                            |
|   ca |                                 |                            |
| bles |                                 |                            |
|      |                                 |                            |
|    i |                                 |                            |
| nsta |                                 |                            |
| lled |                                 |                            |
|      |                                 |                            |
|   wi |                                 |                            |
| thin |                                 |                            |
|      |                                 |                            |
|   or |                                 |                            |
|      |                                 |                            |
|    u |                                 |                            |
| nder |                                 |                            |
|      |                                 |                            |
|  the |                                 |                            |
|      |                                 |                            |
| slab |                                 |                            |
|      |                                 |                            |
|  are |                                 |                            |
|      |                                 |                            |
|  not |                                 |                            |
|      |                                 |                            |
| elig |                                 |                            |
| ible |                                 |                            |
|      |                                 |                            |
|  for |                                 |                            |
|      |                                 |                            |
| this |                                 |                            |
|      |                                 |                            |
| trad |                                 |                            |
| eoff |                                 |                            |
|      |                                 |                            |
|   of |                                 |                            |
|      |                                 |                            |
|    s |                                 |                            |
| lab- |                                 |                            |
| edge |                                 |                            |
|      |                                 |                            |
|    i |                                 |                            |
| nsul |                                 |                            |
| atio |                                 |                            |
| n.~~ |                                 |                            |
+------+---------------------------------+----------------------------+

**N1102.2.2 Ceilings without attic spaces.** Where Section N1102.1 would
require insulation levels above R-30 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. [This reduction of insulation from the requirements of Section
N1102.1 shall be limited to 500 ft^2^ of ceiling area.]{.underline}

**N1102.2.4 Steel-frame ceilings, walls and floors.** Steel-frame
ceilings, walls and floors shall meet the insulation requirements of
Table N1102.2.4 or shall meet the ~~wall~~ U-factor requirements in
Table N1102.1.2. The calculation of the U-factor for a steel-frame
~~wall~~ [envelope assembly]{.underline} shall use a series-parallel
path calculation method.

~~**N1102.3.7 Impact resistant fenestration.** Jurisdictions in zones 1
through 4 that require impact resistant fenestration that meets ASTM
E-1886, ASTM E-1996, or other approved impact standard shall be exempt
from the fenestration U-factor requirement. Fenestration so exempted
shall be listed and labeled by the manufacturer as meeting the approved
impact standard.~~

**N1102.5.1 Maximum fenestration U-factor.** The [area-weighted
average]{.underline} maximum fenestration U-factor permitted using
tradeoffs from Section N1102.1.3 in zones 6 through 8 shall be 0.55.

**Table N1102.1.**

**Insulation and Fenestration Requirements by Component**^(a)^

<table>
<colgroup>
<col style="width: 7%" />
<col style="width: 10%" />
<col style="width: 9%" />
<col style="width: 10%" />
<col style="width: 9%" />
<col style="width: 7%" />
<col style="width: 7%" />
<col style="width: 7%" />
<col style="width: 10%" />
<col style="width: 7%" />
<col style="width: 11%" />
</colgroup>
<tbody>
<tr class="odd">
<td><strong>Climate Zone</strong></td>
<td><strong>Fenestration U‑Factor</strong></td>
<td><p><strong>Skylight<sup>(b)</sup></strong></p>
<p><strong>U-Factor</strong></p></td>
<td><p><strong>Glazed</strong></p>
<p><strong>Fenestration</strong></p>
<p><strong>SHGC</strong></p></td>
<td><p><strong>Ceiling</strong></p>
<p><strong>R-Value</strong></p></td>
<td><p><strong>Wood</strong></p>
<p><strong>Frame Wall</strong></p>
<p><strong>R-Value</strong></p></td>
<td><p><strong>Mass Wall</strong></p>
<p><strong>R-Value</strong></p></td>
<td><p><strong>Floor</strong></p>
<p><strong>R-Value</strong></p></td>
<td><p><strong>Basement<sup>(c)</sup></strong></p>
<p><strong>Wall R‑Value</strong></p></td>
<td><p><strong>Slab<sup>(d)</sup></strong></p>
<p><strong>R-Value &amp; Depth</strong></p></td>
<td><strong>Crawl Space<sup>(c)</sup> Wall R-Value</strong></td>
</tr>
<tr class="even">
<td>1</td>
<td>1.20</td>
<td><del>1.60</del><u>0.75</u></td>
<td>0.40</td>
<td>30</td>
<td>13</td>
<td>3</td>
<td>13</td>
<td>0</td>
<td>0</td>
<td>0</td>
</tr>
<tr class="odd">
<td>2</td>
<td><del>0.80</del> <u>0.75</u></td>
<td><del>1.05</del><u>0.75</u></td>
<td>0.40</td>
<td>30</td>
<td>13</td>
<td>4</td>
<td>13</td>
<td>0</td>
<td>0</td>
<td>0</td>
</tr>
<tr class="even">
<td>3</td>
<td>0.65</td>
<td><del>0.90</del><u>0.65</u></td>
<td>0.40<sup>(e)</sup></td>
<td>30</td>
<td>13</td>
<td>5</td>
<td>19</td>
<td>0</td>
<td>0</td>
<td>5/13</td>
</tr>
<tr class="odd">
<td>4 except Marine</td>
<td>0.40</td>
<td>0.60</td>
<td>NR</td>
<td>38</td>
<td>13</td>
<td>5</td>
<td>19</td>
<td>10 / 13</td>
<td>10, 2 ft</td>
<td>10 / 13</td>
</tr>
<tr class="even">
<td><p>5 and</p>
<p>Marine 4</p></td>
<td>0.35</td>
<td>0.60</td>
<td>NR</td>
<td>38</td>
<td>19 or 13+5<strong><sup>(g)</sup></strong></td>
<td>13</td>
<td><del>25</del><u>30</u><sup>(f)</sup></td>
<td>10 / 13</td>
<td>10, 2 ft</td>
<td>10 / 13</td>
</tr>
<tr class="odd">
<td>6</td>
<td>0.35</td>
<td>0.60</td>
<td>NR</td>
<td>49</td>
<td>19 or 13+5<strong><sup>(g)</sup></strong></td>
<td>15</td>
<td>30<sup>(f)</sup></td>
<td>10 / 13</td>
<td>10, 4 ft</td>
<td>10 / 13</td>
</tr>
<tr class="even">
<td>7 and 8</td>
<td>0.35</td>
<td>0.60</td>
<td>NR</td>
<td>49</td>
<td>21</td>
<td>19</td>
<td>30<sup>(f)</sup></td>
<td><del>15</del><u>10</u> / <del>21</del><u>13</u></td>
<td><del>15</del><u>10</u>, 4 ft</td>
<td>10 / 13</td>
</tr>
<tr class="odd">
<td colspan="11"><p>(a) R-values are minimums. U-factors and SHGC are
maximums. R-19 shall be permitted to be compressed into a 2x6
cavity.</p>
<p>(b) The fenestration U-factor column excludes skylights. The SHGC
column applies to all glazed fenestration.</p>
<p>(c) The first R-value applies to continuous insulation, the second to
framing cavity insulation; either insulation meets the requirement.</p>
<p>(d) R-5 shall be added to the required slab edge R-values for heated
slabs.</p>
<p>(e) There are no SHGC requirements in the Marine zone.</p>
<p>(f) Or insulation sufficient to fill the framing cavity, R-19
minimum.</p>
<p>(g) “13+5” means R-13 cavity insulation plus R-5 insulated sheathing.
If structural sheathing covers 25% or less of the exterior, R-5
sheathing is not required where structural sheathing is used. If
structural sheathing covers more than 25% of exterior, structural
sheathing shall be supplemented with insulated sheathing of at least
R-2.</p></td>
</tr>
</tbody>
</table>

### Table N1102.1.2. 

### Equivalent U-Factors^(a)^

+--------+------+------+-----+------+------+-----+--------+---------+
| **C    | **   | **Sk | **  | **F  | **   | **F | **Base | **Crawl |
| limate | Fene | ylig | Cei | rame | Mass | loo | ment** | Space   |
| Zone** | stra | ht** | lin | Wa   | Wa   | r** |        | Wall    |
|        | tion |      | g** | ll** | ll** |     | **Wall | U-F     |
|        | U‑   | **U‑ |     |      |      | **U | U-Fa   | actor** |
|        | Fact | Fact | **U | **U- | **U- | -Fa | ctor** |         |
|        | or** | or** | -Fa | Fact | Fact | cto |        |         |
|        |      |      | cto | or** | or** | r** |        |         |
|        |      |      | r** |      |      |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| 1      | 1.20 | ~~   | 0.  | 0    | 0    | 0.  | 0.360  | 0.477   |
|        |      | 1.60 | 035 | .082 | .197 | 064 |        |         |
|        |      | ~~[0 |     |      |      |     |        |         |
|        |      | .75] |     |      |      |     |        |         |
|        |      | {.un |     |      |      |     |        |         |
|        |      | derl |     |      |      |     |        |         |
|        |      | ine} |     |      |      |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| 2      | 0.~~ | ~~   | 0.  | 0    | 0    | 0.  | 0.360  | 0.477   |
|        | 80~~ | 1.05 | 035 | .082 | .165 | 064 |        |         |
|        | [75] | ~~[0 |     |      |      |     |        |         |
|        | {.un | .75] |     |      |      |     |        |         |
|        | derl | {.un |     |      |      |     |        |         |
|        | ine} | derl |     |      |      |     |        |         |
|        |      | ine} |     |      |      |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| 3      | 0.~~ | ~~   | 0.  | 0    | 0    | 0.  | 0.360  | 0.136   |
|        | 60~~ | 0.90 | 035 | .082 | .141 | 047 |        |         |
|        | [65] | ~~[0 |     |      |      |     |        |         |
|        | {.un | .65] |     |      |      |     |        |         |
|        | derl | {.un |     |      |      |     |        |         |
|        | ine} | derl |     |      |      |     |        |         |
|        |      | ine} |     |      |      |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| 4      | 0.40 | 0.60 | 0.  | 0    | 0    | 0.  | 0.059  | 0.065   |
| except |      |      | 030 | .082 | .041 | 047 |        |         |
| Marine |      |      |     |      |      |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| 5 and  | 0.35 | 0.60 | 0.  | 0    | 0    | 0.0 | 0.059  | 0.065   |
| Marine |      |      | 030 | .060 | .082 | 3~~ |        |         |
| 4      |      |      |     |      |      | 7~~ |        |         |
|        |      |      |     |      |      | [3] |        |         |
|        |      |      |     |      |      | {.u |        |         |
|        |      |      |     |      |      | nde |        |         |
|        |      |      |     |      |      | rli |        |         |
|        |      |      |     |      |      | ne} |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| 6      | 0.35 | 0.60 | 0.  | 0    | 0    | 0.  | 0.059  | 0.065   |
|        |      |      | 026 | .060 | .0~~ | 033 |        |         |
|        |      |      |     |      | 59~~ |     |        |         |
|        |      |      |     |      | [60] |     |        |         |
|        |      |      |     |      | {.un |     |        |         |
|        |      |      |     |      | derl |     |        |         |
|        |      |      |     |      | ine} |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| 7 and  | 0.35 | 0.60 | 0.  | 0    | 0    | 0.  | 0      | 0.065   |
| 8      |      |      | 026 | .057 | .0~~ | 033 | .0~~41 |         |
|        |      |      |     |      | 53~~ |     | ~~[59] |         |
|        |      |      |     |      | [57] |     | {.unde |         |
|        |      |      |     |      | {.un |     | rline} |         |
|        |      |      |     |      | derl |     |        |         |
|        |      |      |     |      | ine} |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+
| \(a\)  |      |      |     |      |      |     |        |         |
| Non-   |      |      |     |      |      |     |        |         |
| fenest |      |      |     |      |      |     |        |         |
| ration |      |      |     |      |      |     |        |         |
| U-f    |      |      |     |      |      |     |        |         |
| actors |      |      |     |      |      |     |        |         |
| shall  |      |      |     |      |      |     |        |         |
| be     |      |      |     |      |      |     |        |         |
| ob     |      |      |     |      |      |     |        |         |
| tained |      |      |     |      |      |     |        |         |
| from   |      |      |     |      |      |     |        |         |
| measur |      |      |     |      |      |     |        |         |
| ement, |      |      |     |      |      |     |        |         |
| calcu  |      |      |     |      |      |     |        |         |
| lation |      |      |     |      |      |     |        |         |
| or an  |      |      |     |      |      |     |        |         |
| ap     |      |      |     |      |      |     |        |         |
| proved |      |      |     |      |      |     |        |         |
| s      |      |      |     |      |      |     |        |         |
| ource. |      |      |     |      |      |     |        |         |
+--------+------+------+-----+------+------+-----+--------+---------+

  ------- -- ------------------------------------------------------------------
  ** **      Modification Continued (Attach additional sheets as necessary)

  ------- -- ------------------------------------------------------------------

**8)** **[REASON]{.underline} (State reason and provide substantiation
to support the Comment):**

The U.S. Department of Energy (DOE) has worked for the past decade to
promote the International Energy Conservation Code (IECC). In response
to repeated comments that the residential IECC was difficult to
understand and implement, and expensive to enforce, DOE worked
extensively with many interested parties to develop a more usable energy
code. The result was EC48, a revision to the energy code replacing the
first six chapters of the IECC and the energy chapter of the
International Residential Code (IRC). At this fall's Code Development
Hearings (the "first hearing"), this improved energy code was approved
overwhelmingly for both the IECC and the IRC by votes in five ICC
committees. The result of the first hearing is a much more usable energy
code.

Aligning the IECC and IRC was one goal of DOE's original change
proposal. Most of DOE's public comment for the Final Action Code Hearing
(the "second hearing") is designed to realign the IECC and IRC where
floor amendments at the first hearing were made to one I-code and not
the other. Nothing proposed herein makes a substantial modification to
any major part of EC48. A few of the changes here correct editorial
errors.

Because the focus of this public comment is consistency between the IECC
and IRC, the same reason is being submitted for both the IECC and IRC.
The individual changes are discussed roughly in the order they occur in
the code, as approved at the first hearing.

[Default fenestration U-factors and SHGC]{.underline}.

EC48 proposed a more usable and condensed set of fenestration defaults
for U-factor and SHGC. In the first hearing, the EC48 default window
U-factor and SHGC tables for unrated products were replaced by amendment
in both IECC and IRC with the existing 2003 IECC tables. In the IECC
(only), the 2003 IECC default door U-factors were also restored. In
seeking ways to align the I-codes DOE has learned that the proponents of
those amendments desired default tables with more product categories
than EC48 originally proposed. This public comment includes streamlined
default tables that add additional product types not originally in EC48
(thermally broken windows, door table in the IRC), track the existing
defaults more closely for skylights, better cover the range of doors
(originally only covered doors 1.75 inches thick), eliminate some
uncertainty in the SHGC table (dependency on the glass color), and are
formatted to better fit the simplicity of EC48. (Replaces IECC Tables
102.1.3(1), 102.1.3(2), and 102.1.3(3). Replaces IRC Tables N1101.5(1)
and N1101.5(2). Conforming modification made to the text referencing the
table in IRC N1101.5.)

[Efficiency label on HVAC equipment]{.underline}.

The EC48 requirement for a permanent efficiency label on HVAC equipment
probably created a conflict with FTC rules and was eliminated by
amendment in the IRC. DOE's proposed second-hearing change removes the
same requirement from the IECC. (Removes IECC 102.4.)

[Above code program recognition]{.underline}.

The EC48 provision giving explicit authority for a jurisdiction to
recognize above-code energy-efficiency programs was removed in the IECC,
but retained in the IRC. DOE's proposed second-hearing change makes the
IECC and IRC consistent by restoring the explicit option in the IECC.
(Add IECC 103.1.1.)

[Certificate location]{.underline}.

A minor discrepancy on where the certificate on home energy efficiency
features should be posted was introduced by a first-hearing amendments.
The IRC is modified to match the IECC. (Modify IRC N1101.8.)

[Cathedral ceiling exemption]{.underline}.

In EC48 the requirement for ceiling insulation greater than R-30 was
relaxed to R-30 where framing members are too small to fit the full
height of the insulation. In the first hearing this exemption was
removed from the IECC, but retained in the IRC. DOE's proposed
second-hearing change is a compromise that limits the exemption to 500
ft^2^ in both codes. (Add IECC 402.2.2. Modify IRC N1102.2.2)

[Steel framing]{.underline}.

DOE's second-hearing change proposal makes editorial improvements in the
section on steel framing in both the IECC and IRC. (Modify IECC 402.2.4.
Modify IRC N1102.2.4.)

[Impact resistant fenestration]{.underline}.

EC48 exempted impact resistant fenestration from the U-factor
requirements in some zones because commercial products were generally
lacking. A first-hearing amendment removed the exemption from the IECC,
but not the IRC. Because commercial products are now available, DOE
proposes that the exemption be removed from the IRC. (Delete IRC
N1102.3.7.)

[Prescriptive HVAC tradeoffs]{.underline}.

The EC48 prescriptive HVAC tradeoffs were deleted in the IECC and
reduced in the IRC. To make the two codes consistent, DOE proposes that
the remaining table and associated text be deleted from the IRC. (Delete
IRC N1102.1.4 and Table N1102.1.4.)

[Maximum fenestration tradeoffs]{.underline}.

The section is clarified in both codes to require an "area-weighted
average". (Modify IECC 402.5.1. Modify IRC N1102.5.1)

[Heat pump controls text]{.underline}.

Confusing 2003 IECC language on heat pump controls was changed by an
unrelated first-hearing code change (EC17). This had the effect of
resurrecting text that had been deleted as unnecessary in the context of
DOE's first-hearing change proposal. No comparable text was added to the
IRC; therefore the IECC section affected by EC17 should be deleted.
(Delete IECC 403.1.2.)

[Window and Skylight U-factors]{.underline}.

Prescriptive window and skylight U-factor requirements in EC48 were
modified in the south by a first-hearing floor amendment in the IECC.
However, only one table of two that govern the U-factors was modified.
The window U-factor changes were small, designed to better accommodate
aluminum frames. The southern skylight U-factors were lowered,
consistent with DOE's goal of better accommodating cooling concerns in
the energy code. DOE's second-hearing proposal is to make the other IECC
table and the two IRC tables consistent with the first-hearing IECC
floor changes. (Modify fenestration and skylight U-factors in IECC Table
402.1.2; and IRC Tables N1102.1 and N1102.1.2.)

[Southern basement insulation]{.underline}.

A southern climate zone in EC48 was amended to require basement
insulation in the IECC, but not the IRC. Because basement insulation is
of marginal value in much of this zone, DOE is proposing that the IECC
and IRC be made consistent by removing the IECC basement insulation
requirement in zone 3. (Modify zone 3 basement insulation IECC Table
402.1.)

[Insulation values changed]{.underline}.

DOE is proposing a few changes to both the IECC and IRC for reasons of
practicality. The floor insulation requirement in zone 5 of R-25 should
become R-30. This will eliminate the only occurrence of R-25 in the
code. Note that the higher value, per the table footnote, would not be
required if it caused an increase in framing size. (Modify zone 5 floor
values in IECC Tables 402.1 and 402.1.2. Modify zone 5 floor values in
IRC Tables N1102.1 and N1102.1.2.)

R-15 foundation insulation may lead to a thick outside "lip" which is
difficult to protect, so DOE is proposing that basement and slab
insulation requirements be reduced to R-10 in the extreme northern
zones. (Modify zone 7/8 basement and slab R-values in IECC Tables 402.1
and 402.1.2. Modify zone 7/8 basement U-factors in Tables N1102.1 and
N1102.1.2.)

[U-factor table discrepancies]{.underline}.

Unintentional discrepancies were introduced into IECC and IRC tables by
a first-hearing floor amendment, making mass-wall U-factors more
stringent than frame-wall U-factors in northern zones. These mass-wall
U-factors should be set equal to the corresponding frame-wall U-factors.
(Modify mass wall U-factors in IECC Table 402.1.2 and IRC Table
N1102.1.2)

A discrepancy in the U-factor tables for crawl space walls was also
introduced in a first-hearing IECC floor amendment. No discrepancy was
introduced into the IRC. (Modify zone 7/8 crawl space wall U-factor in
IECC Table 402.1.2)

[Performance approach window area]{.underline}.

One element of the EC48 performance calculation (IECC only), the
standard-design window area, was changed by floor amendment in the first
hearing. DOE proposes that the IECC revert to the original proposed
value (18% of conditioned floor area) to maintain consistency with
several beyond-code programs that tend to make use of the same or
similar software as is used for performance-based code compliance.
(Modify IECC Table 404.5.2(1).)

[Unvented crawl space text]{.underline}.

Editorial improvements are proposed to the section on unvented crawl
spaces. (Modify IRC R408.2.)

[Commercial climate zone changes]{.underline}.

Two successful commercial IECC changes (EC37 and EC40) modified text
that included climatic references (HDD). Those two changes should be
translated into the new climate zones, but otherwise unchanged. (Modify
IECC 803.2.5.1 and 803.3.10.)

  --- -- ------------------------------------------------------------------
         REASON Continued (Attach additional sheets as necessary)

  --- -- ------------------------------------------------------------------

**PLEASE USE SEPARATE FORM FOR EACH PROPOSAL**

**SUBMITTAL AS A DOCUMENT ATTACHED TO AN EMAIL IS PREFERRED**

**SEE OTHER SIDE FOR DIRECTIONS ON WHERE TO SEND PUBLIC COMMENTS**

**The following instructions are excerpts from the ICC Code Development
Process for the International Codes. The full procedures can be
downloaded from the ICC website at www.iccsafe.org.**

**PUBLIC COMMENTS SHOULD BE SENT TO THE FOLLOWING OFFICES VIA REGULAR
MAIL OR EMAIL:**

**Code** **Send to:**

IBC

IEBC International Code Council

IECC Chicago Regional Office

IFC Attn: Diane Schoonover

IPMC 4051 West Flossmoor Road

IUWIC Country Club Hills, IL 60478-5795

IPC Fax: 708/799-0320

IPSDC dschoonover@iccsafe.org

IFGC

IZC

ICCEC

ICCPC

IRC International Code Council

IMC Birmingham Regional Office

> Attn: Annette Sundberg
>
> 900 Montclair Road
>
> Birmingham, AL 35213-1206
>
> Fax: 205/592-7001
>
> asundberg@iccsafe.org

**Acronym ICC Code Name**

**IBC** International Building Code

**ICCEC** ICC Electrical Code

**ICCPC** ICC Performance Code

**IEBC** International Existing Buildings Code

**IECC** International Energy Conservation Code

**IFC** International Fire Code

**IFGC** International Fuel Gas Code

**IMC** International Mechanical Code

**IPC** International Plumbing Code

**IPMC** International Property Maintenance Code

**IPSDC** International Private Sewage Disposal Code

**IRC** International Residential Code

**IUWIC** International Urban-Wildland Interface Code

**IZC** International Zoning Code

**6.0 Public Comments**

**6.1** **Intent:** The public comment process gives attendees at the
Final Action Hearing an opportunity to consider specific objections to
the results of the public hearing and more thoughtfully prepare for the
discussion for Final Action Consideration. The public comment process
expedites the Final Action Consideration at the Final Action Hearing by
limiting the items discussed to the following:

> 1.Consideration of items for which a public comment has been
> submitted; and
>
> 2\. Consideration of items which received a successful assembly action
> at the public hearing.

**6.2 Deadline:** The deadline for receipt of a public comment to the
results of the public hearing shall be announced at the public hearing
but shall not be less than 30 days from the availability of the report
of the results of the public hearing (see Section 5.8).

**6.3 Form and Content of Public Comments:** Any interested person,
persons or group may submit a public comment to the results of the
public hearing which will be considered when in conformance to these
requirements. Each public comment to a code change proposal shall be
submitted separately and shall be complete in itself. Each public
comment shall contain the following information:

**6.3.1 Public comment:** Each public comment shall include the name,
title, mailing address and telephone number of the public comment. If a
group, organization or committee submits a public comment, an individual
with prime responsibility shall be indicated. If a public comment is
submitted on behalf of a client, group, organization or committee, the
name and mailing address of the client, group, organization or committee
shall be indicated.

**6.3.2 Code Reference:** Each public comment shall include the code
change proposal number and the results of the public hearing on the code
change proposal to which the public comment is directed.

> **6.3.3 Desired Final Action:** The public comment shall indicate the
> desired final action as one of the following:
>
> 1\. Approve the code change proposal (AS), or
>
> 2\. Approve the code change proposal as modified (AM) by one or more
> specific modifications published in the Results of the Public Hearing
> or published in a public comment, or
>
> 3\. Disapprove the code change proposal (D).
>
> **6.3.4 Supporting Information:** The public comment shall include a
> statement containing a reason and justification for the desired final
> action on the code change proposal. A bibliography of any
> substantiating material submitted with a public comment shall be
> published with the public comment.
>
> **6.3.5 Number:** Two copies of each public comment and two copies of
> all substantiating information shall be submitted. Additional copies
> may be requested when determined necessary by the Secretariat. A copy
> of the public comment in electronic form may be requested.

**6.4 Review:** The Secretariat shall be responsible for reviewing all
submitted public comments from an editorial and technical viewpoint
similar to the review of code change proposals (see Section 4.2).

> **6.4.1 Incomplete Public Comment:** When a public comment is
> submitted with incorrect format or without the required information,
> the public comment shall not be processed. The Secretariat shall
> notify the public commenter of the specific deficiencies and the
> public comment shall be held until the deficiencies are corrected, or
> the public comment shall be returned to the public commenter with
> instructions to correct the deficiencies with a final date set for
> receipt of the corrected public comment.
>
> **6.4.2 Duplications:** On receipt of duplicate or parallel public
> comments, the Secretariat may consolidate such public comments for
> Final Action Consideration. Each public commenter shall be notified of
> this action when it occurs.
>
> **6.4.3 Deadline:** Public comments received by the Secretariat after
> the deadline set for receipt shall not be published and shall not be
> considered as part of the Final Action Consideration.

**6.5 Publication:** The list of public hearing results on code change
proposals that have not been public commented and the code change
proposals with public commented public hearing results shall constitute
the final action agenda. The final action agenda shall be published and
made available at least 30 days prior to Final Action Consideration.

**The 2003/2004 Final Action Hearings will be held May 17-20, 2004 in
Overland Park, KS**