DEPARTMENT OF LICENSING AND REGULATORY AFFAIRS
DIRECTOR'S OFFICE
CONSTRUCTION CODE
Filed with the secretary of state on
These rules become effective 120 days after filing with the secretary of state.
(By authority conferred on the director of
the department of licensing and regulatory affairs by section 4 of the Stille-DeRossett-Hale
single state construction code act, 1972 PA 230, MCL 125.1504, and
Executive Reorganization Order Nos. 2003-1, 2008-4, and 2011-4, MCL
445.2011, MCL 445.2025, and MCL 445.2030)
R 408.31087, R 408.31088a, 408.31093 and R
408.31098c of the Michigan Administrative Code are amended, R 408.31091a
is added, and R 408.31087a, R 408.31087b, R 408.31088, R 408.31090, R 408.31091,
R 408.31092a, R 408.31094, R 408.31095, R 408.31096, R 408.31097, R 408.31098,
R 408.31098a, and R 408.31098b of the Michigan Administrative Code are
rescinded, as follows:
PART 10a. MICHIGAN ENERGY CODE
R 408.31087 Applicable code.
Rule 1087. Rules governing the energy
efficiency for the design and construction of buildings and structures, not
including residential buildings, shall be those contained in the international
energy conservation code, 2015 2021 edition, including appendix
CB, except for sections C104.2 to C104.5, C107.2 to C107.5, C108.2
to C108.4, C109.1 to C109.4, C110.1 to C110.3, C301.2, C301.3,
C302, C401.2.1 to C408.3.2, C502.2 to C502.2.6.2, C503.2 to
C503.6 appendix CA, and appendix CC and the ASHRAE energy standard
for buildings, except low-rise residential buildings, ANSI/ASHRAE/IESNA
standard 90.1-2013 2019 (hereafter, referred to as the
standard in these rules), including appendices A, B, C, D,
E, F and G, H, and I. except for sections
8.4.2,8.4.3 to 8.4.3.2. With the amendments noted, the international energy
conservation code and the standard are adopted by reference in these
rules by reference. The Michigan energy code is available for
inspection at the Lansing office of the Michigan Department of Licensing
and Regulatory Affairs, Bureau of Construction Codes, 611 W. Ottawa Street,
Lansing, Michigan 48933. The code may be purchased from the International Code
Council, through the bureau’s website at www.michigan.gov/bcc,
at a cost as of the time of adoption of these rules of $44.00 $52.00.
The ASHRAE 90.1- 2013 2019 standard is available for inspection
at the Lansing office of the Michigan Department of Licensing and Regulatory
Affairs, Bureau of Construction Codes, 611 West Ottawa Street, Lansing, Michigan
48933. The standard may be purchased from the American Society of Heating,
Refrigeration and Air-Conditioning Engineers, Inc., 1791 Tullie Circle, NE,
Atlanta, Georgia 30329, 180 Technology Parkway North West, Peachtree
Corners, Georgia 30092, or from https://www.ashrae.org
at a cost as of the time of adoption of these rules of $135.00 $177.00
each.
R 408.31087a Scope.
Rescinded.
Rule 1087a.
Section C501.1 of the code is amended to read as follows:
C501.1. Scope. The requirements contained
in this chapter are applicable to commercial buildings, or portions of commercial
buildings. These commercial buildings shall meet the requirements of ASHRAE/IESNA
Standard 90.1, “Energy Standard for Buildings Except for Low-Rise Residential
Buildings, and the requirements contained in this chapter.
R 408.31087b Application.
Rescinded.
Rule 1087b. Section
C401.2 of the code is amended to read as follows:
C401.2. Application. Commercial
buildings shall comply with the requirements of ANSI/ASHRAE/IESNA 90.1-2013.
R 408.31088 Definitions.
Rescinded.
Rule 1088.
The definitions of building and building official in section 202 of the code
are is amended to read as follows:
202. Definitions.
“Building” as defined in the Stille-DeRossett-Hale
single state construction code act, 1972 PA 230, MCL 125.1501 to 125.1531.
"Building official" as defined
in the Stille-DeRossett- Hale single state construction code act, 1972 PA
230, MCL 125.1501 to 125.1531.
R 408.31088a Scope; requirements.
Rule 1088a. Sections C101.1 is
amended to read as follows:
C101.1. Title. This code shall be known and cited as the “Michigan Commercial Energy Code.” It is
referred to herein as “this code.” in these rules.
R 408.31090 Administrative
requirements. Rescinded.
Rule 1090.
Section C104.8 of the code is added to read as follows:
C104.8. Administrative requirements
relating to permits, enforcement, interpretations, and appeals shall be pursuant
to the Stille-DeRossett-Hale single state construction code act, 1972 PA 230,
MCL 125.1501 to 125.1531.
R 408.31091 Existing
buildings.
Rescinded.
Rule 1091.
Sections C502.1, C503.1, C504.1, and C505.1 of the code are amended to read as
follows:
C502.1. Additions. Additions shall comply
with ASHRAE 90.1-2013, section 4.2.1.2.
C503.1. Alterations. Alterations to
any building or structure shall comply with the requirements of ASHRAE 90.1-2013,
section 4.2.1.3.
C504.1. General. Buildings and structures,
and parts thereof, shall be repaired in compliance with section C501.3 and this
section. Work on nondamaged components that is necessary for the required repair
of damaged components shall be considered part of the repair and shall not be
subject to the requirements for alterations in this chapter. Routine maintenance
required by section C501.3, ordinary repairs exempt from permit and abatement of
wear due to normal service conditions shall not be subject to the requirements
for repairs in this section.
Where a building was constructed to
comply with ANSI/ASHRAE/IESNA 90.1, repairs shall comply with the standard.
C505.1. General. 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.
R 408.31091a Lighting systems.
Rule 1091a. Section C503.5 is added to read as follows:
C503.5 Lighting systems. New lighting systems that are part of the alteration shall comply with sections C405 and C408.
Exception: Alterations that replace less than 50% of the luminaries in a space, if these alterations do not increase the installed interior lighting power.
R 408.31092a Inspections.
Rescinded.
Rule 1092a. Section
C104.2 of the code is amended to read as follows:
C104.2. Required energy efficiency
inspections. The code official or his or her designated agent, upon notification,
shall make the inspections set forth in sections C104.2.1 through C104.2.6
R 408.31093 FeesPermits.
Rule 1093.
Section C107.1 C104.1 of the code is
amended to read as follows:
C107.1C104.1. Payment of
feesPermits. The fees
prescribed by the Stille-DeRossett-Hale single state construction code act,
1972 PA 230, MCL 125.1501 to 125.1531 shall be paid to the enforcing agency of the
jurisdiction before a permit to begin work for new construction, alteration,
removal, demolition, or other building operation may be issued. In addition,
an amendment to a permit requiring an additional fee shall not be approved
until the additional fee has been paid. An owner or owner’s authorized agent
who intends to construct, enlarge, alter, repair, move, demolish, or change the
occupancy of a building or structure, or to erect, install, enlarge, alter,
repair, remove, convert, or replace any electrical, gas, mechanical, plumbing,
or solar panel system, the installation that is regulated by this code, or to
cause the work to be performed, shall first apply to the building official and
obtain the required permit.
R 408.31094 Stop
work orders. Rescinded.
Rule 1094.
Section C108.1 of the code is amended to read as follows:
C108.1. Stop work orders. Notice shall
be in accordance with the Stille-DeRossett-Hale single state construction code
act, 1972 PA 203, MCL 125.1501 to 125.1531. A person who is served with a stop
work order, except for work that the person is directed to perform to remove a
violation or unsafe condition, is subject to the penalty provisions prescribed
by the act.
R 408.31095 Board
of appeals. Rescinded.
Rule 1095.
Sections C109.1 and C109.3 of the code are amended to read as follows:
C109.1. Means of appeal. (1) An interested
person may appeal a decision of the enforcing agency to the board of appeals in
accordance with the act.
(2) The decision of a local board of appeals
may be appealed to the construction code commission in accordance with the act and
time frames contained in the act.
R 408.31096 Climate
zones. Rescinded.
Rule 1096. Sections
C301.1, Tables C301.1 and C301.3(2) of the code are amended and Figure C301.1a
is added to the code to read as follows:
C301.1. General. Climate zones from
figures C301.1, C301.1a, or table C301.1 shall be used to determine the applicable
requirements of this code.
Table C301.1
Climate Zones by County
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Key: A – Moist. Absence of moisture designation
indicates moisture regime is irrelevant.
Table C301.3(2)
Climate Zone Definitions
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R 408.31097 Fenestration
product rating. Rescinded.
Rule 1097. Section
C303.1.3 of the code is amended to read as follows:
C303.1.3. Fenestration product rating.
U-factors or 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 a labeled U-factor
shall be assigned a default U-factor from Table C303.1.3(1) or C303.1.3(2).
Exception:
1. Computer simulations by independent
NFRC certified laboratories or approval under the Stille-Derossett-Hale Single
State Construction Code Act, 1972 PA 230, MCL 125.1501 to 125.1531, is considered
in compliance with this section.
2. Where required, garage door U-factors
shall be determined in accordance with either NFRC 100 or ANSI/DASMA 105.
U-factors shall be determined by an
accredited, independent laboratory, and labeled and certified by the manufacturer.
Products lacking a labeled U-factor
shall be assigned a default U-factor from Table C303.1.3(1) or C303.1.3(2). The
solar heat gain coefficient (SHGC) and visible transmittance (VT) 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 or VT shall be
assigned a default SHGC or VT from table C303.1.3(3).
R 408.31098 (C506.1)
Envelope alterations. Rescinded.
Rule 1098. Section
5.1.3 of the standard is amended to read as follows:
(5.1.3). Alterations to the building
envelope shall comply with the requirements of section 5 for insulation, air
leakage, and fenestration applicable to those specific portions of the building
that are being altered.
Exceptions:
1. Installation of storm windows or glazing
panels over existing glazing, provided the storm window or glazing panel contains
a low-emissivity coating. However, a low-emissivity coating is not required where
the existing glazing already has a low-emissivity coating. Installation may be
either on the inside or outside of the existing glazing.
2. Replacement of glazing in existing
sash and frame, provided the U-factor and SHGC will be equal to or lower than before
the glass replacement.
3. Alterations to roof or ceiling, wall,
or floor cavities that are insulated to full depth with insulation having a minimum
nominal value of R-3.0/in.
4. Alterations to walls and floors, where
the existing structure is without framing cavities and no new framing cavities
are created.
5. Roof recovering.
6. Removal and replacement of a roof
membrane where there is existing roof insulation integral to or below the roof
deck.
7. Removal and replacement of a roof
membrane where the insulation is installed entirely above the roof deck, a minimum
of R-20 insulation shall be permitted where the placement of additional
insulation greater than R-20 insulation would require either of the following:
a. Raising the height of parapets, weep
systems, or through wall flashings where roof abuts adjoining walls or parapets.
b. Raising the height of mechanical or
electrical equipment, mechanical curbs, roof hatches, skylight curbs, service
equipment, piping, conduit, duct work, roof platforms, ladders, stairs, guard rails,
expansion joints, roof davits, or door thresholds.
8. Replacement of existing fenestration,
provided that the area of the replacement fenestration does not exceed 25% of
the total fenestration area of an existing building and that the U-factor and
SHGC, will be equal to or lower than before the fenestration replacement.
R 408.31098a (C506.2)
Vestibules. Rescinded.
Rule 1098a.
Section 5.4.3.4 of the standard is amended to reads as follows:
5.4.3.4. Vestibules. Building
entrances that separate conditioned space from the exterior shall be protected
with an enclosed vestibule, with all doors opening into and out of the vestibule
equipped with self-closing devices. Vestibules shall be designed so that in
passing through the vestibule it is not necessary for the interior and exterior
doors to open at the same time. Interior and exterior doors shall have a minimum
distance between them of not less than 7 feet when in the closed positon. The
floor area of each vestibule shall not exceed the greater of 50 feet2
or 2% of the gross conditioned floor area for that level of the building. The exterior
envelope of conditioned vestibules shall comply with the requirements for a conditioned
space. The interior and exterior envelope of unconditioned vestibules shall comply
with the requirements for a semiheated space.
Exceptions:
1. Doors not intended to be used by the
public, such as doors to storage, mechanical, electrical, or equipment rooms.
2. Doors opening directly from a
sleeping unit or dwelling unit.
3. Doors that open directly from a space
less than 3,000 feet2 (298 m2) in area.
4. Revolving doors.
5. Doors used primarily to facilitate
shipping, receiving, or material handling.
6. Doors with no exterior entrance hardware.
7. Doors leading solely to outdoor eating
areas.
8. Overhead doors.
R 408.31098b (C506.3)
System commissioning. Rescinded.
R1098a.
Section 6.7.2.4 of the standard is amended to read as follows:
6.7.2.4. System Commissioning. HVAC control
systems shall be tested to ensure that control elements are calibrated,
adjusted, and in proper working condition. For projects larger than 10,000 ft2,
conditioned area, except warehouses and semiheated spaces, detailed instructions
for commissioning HVAC systems (see informative appendix E) shall be provided
by the designer in plans and specifications.
R 408.31098c (C506.4)
Lighting alterations.
Rule 1098b. Section 9.1.2 of the standard is amended to read as follows:
9.1.2. Lighting alterations. For the
alteration of any lighting system in an interior space, that space shall comply
with the lighting power density, (LPD), requirements
allowances of section 9
9.5.1
or 9.6.1
and
the control requirements of section applicable to that space and the automatic
shutoff requirements of section 9.4.1.1 (a) to (d) and (g) to (i) as
applicable to that space. For the alteration of any lighting system for the in an
exterior of
a
building application, that lighting system shall comply with the LPD lighting power
density (LPD) requirements allowances of section 9 9.4.2 applicable to the
area illuminated by that lighting system and the applicable control requirements
of sections 9.4.1.4(a) and 9.4.1.4(b) and 9.4.2. These alterations
shall include all luminaires that are added, replaced, or removed. This requirement
shall also be met for alterations that involve only the replacement of lamps plus
ballasts. Alterations do not include routine maintenance or repair situations.
Exception: Alterations that involve less
than 50% or
less
of the connected lighting load in a space or area need not comply do not
have to comply with these requirements, provided that such the alterations do not
increase the installed LPD lighting power.