HomeMy WebLinkAboutOrdinance - 2020-O0018 - Adopting The 2015 International Mechanical Code - 02/11/2020 First Reading Second Reading
January 28, 2020 February 11, 2020
Item No. 7.14 Item No. 7.10
ORDINANCE NO. 2020-00018
AN ORDINANCE AMENDING CHAPTER 28 OF THE CODE OF ORDINANCES OF
THE CITY OF LUBBOCK, TEXAS WITH REGARD TO ADOPTION OF THE 2015
' INTERNATIONAL MECHANICAL CODE AND PROVIDING FOR CERTAIN
AMENDMENTS THERETO TO MEET LOCAL CONDITIONS; PROVIDING A
PENALTY; PROVIDING A SAVINGS CLAUSE; AND PROVIDING FOR
PUBLICATION.
WHEREAS the City Council of the City of Lubbock, Texas deems it in the best interest of
the health, safety, and welfare of the citizens of Lubbock to adopt the 2015 International
Mechanical Code for the City of Lubbock with certain amendments thereto to meet local
conditions;NOW THEREFORE:
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF LUBBOCK:
SECTION 1. THAT Chapter 28, Article 28.11 of the Code of Ordinances of the City
of Lubbock is hereby amended as follows:
ARTICLE 28.11 MECHANICAL CODE
Sec. 28.11.001 Adopted
The 2015 edition of the International Mechanical Code, as published by the
International Code Council, Inc., as hereinafter amended, including appendix A, is
hereby adopted as the mechanical code of the City of Lubbock, Texas. A copy of said
code is attached hereto and incorporated herein as though set out herein in detail.
References to the Mechanical Code in this chapter or to "this code"within this article
shall mean and refer to the 2015 edition of the International Mechanical Code as
amended herein. One copy of the 2015 International Mechanical Code shall be filed
with the city secretary and a copy shall be maintained in the office of the city building
official. All such copies, with the amendments thereto, shall be open to public
inspection during the usual hours of business of the offices where they are maintained.
Sec. 28.11.002 Coordination of administrative provisions
The administrative provisions contained in chapter 28,articles 28.01 through 28.08 of
this Code of Ordinances are applicable to this article; however, for purposes of
administering provisions related more specifically to the regulation of mechanical
systems installation, these supplemental administrative provisions have been
provided. Except as amended or supplemented within sections 28.11.002 and
28.11.003, the entire text of chapter 1 of the 2015 International Mechanical Code is
deemed to be incorporated herein as though set out herein in detail. Where a conflict
arises between a provision contained within sections 28.11.002 and 28.11.003 and
articles 28.01 through 28.08 of this Code of Ordinances, it is the intent that the more
specific govern, as determined by the building official.
1
Sec. 28.11.003 Supplemental administrative amendments
(a) Fee schedule. Section 106.5.2 is hereby amended by inserting the following
fee schedule:
n_ MECHANICAL FEE SCHEDULE
$0.06 per sq.ft.of gross floor area under roof,$50.00 minimum.
New Construction: For warehouse and storage occupancies with no more than four(4)
mechanical units without branch ducts are to be installed and
comprise the entire HVAC system,the fee shall be calculated in the
same manner as for alterations and remodeling below.
Additions to floor area,or
remodeling involving As for new construction
complete HVAC system
replacement:
Alterations&remodeling
not involving total HVAC
system replacement(no
change in building area),
including new
installations,replacement
and repair of:Air $2.00 per$1,000.00 valuation,$50.00 minimum(Where more than
handlers,furnaces,air one inspection is required,an additional fee of$15.00 shall be
conditioning and assessed for each additional inspection)
ventilation equipment and
duct systems,grease
hoods,exhaust systems,
boilers,chillers,etc.
requiring inspection
approval:
Miscellaneous"generic"
permits for new
installations,replacement
and repair of: Air
handlers, furnaces,air
conditioning and $50.00(Where more than one inspection is required,an additional
ventilation equipment and fee of$15.00 shall be assessed for each additional inspection)
duct systems,grease
hoods,exhaust systems,
boilers,chillers,etc.
requiring inspection
approval:
Permit fees,work
commencing prior to
permit approval:
Renewal of expired As for building permit fees,except that permit fee calculations shall
permit: be based on this section.
Renewal of involuntarily
terminatedpermit:
Permit transfer fee:
Re-inspection Fees:
(b) Administrative amendments and cross-references to articles 28.01 through
28.08. The following administrative provisions within chapter one of the International
Mechanical Code are hereby stricken,and the corresponding provisions within articles
28.01 through 28.08 of this Code of Ordinances shall govern, as indicated in table
28.11.003 below:
TABLE 28.11.003
ADMINISTRATIVE PROVISIONS CROSS-REFERENCE
2015 International Section Heading/Subject Refer to Lubbock Code
Mechanical Code of Ordinances Chapter
Section Section
106.5.3 Fee refunds 28.05.109
108.4 Violation penalties 28.02.006
108.5 Stop work orders 28.02.007
109.1 through 109.7 Means of appeal 2.03.491 through 2.03.495
Sec. 28.11.004. Technical amendments.
(a) Guards. Section 304.11 is hereby amended to read as follows:
304.11 Guards. Guards shall be provided where various components that require
service and roof hatch openings are located within 10 feet (3048 mm) of a roof
edge or open side of a walking surface and such edge or open side is located more
than 30 inches (762 mm) above the floor, roof, or grade below. The guard shall
extend not less than 30 inches (762 mm) beyond each end of components that
require service. The top of the guard shall be located not less than 42 inches (1067
mm) above the elevated surface adjacent to the guard. The guard shall be
constructed so as to prevent the passage of a 21-inch-diameter (533 mm) sphere
and shall comply with the loading requirements for guards specified in the
International Building Code.
Exceptions:
1. Guards are not required where permanent fall arrest/restraint anchorage
connector devices that comply with ANSI/ASSE Z 359.1 are affixed
for use during the entire lifetime of the roof covering. The devices shall
be re-evaluated for possible replacement when the entire roof covering
is replaced. The devices shall be placed not more than 10 feet (3048
mm)on center along hip and ridge lines and placed not less than 10 feet
(3048 mm) from roof edges and the open sides of walking surfaces.
3
I
2. Guards are not required to be installed upon replacement of legally-
installed pre-existing rooftop appliances and equipment within existing
rough openings that would otherwise be subject to Section 304.11,
provided that a fall hazard warning sign is affixed to the service access
side of the equipment.
(b) Sloped roofs. Section 306.5.1 is hereby amended to read as follows:
306.5.1 Sloped roofs. Where appliances,equipment,fans or other components that
require service are installed on a roof having a slope of six units vertical in 12 units
horizontal (50 percent slope) or greater and having an edge more than 30 inches
(762 mm) above grade at such edge, a level platform shall be provided on each
side of the appliance or equipment to which access is required for service, repair
or maintenance. The platform shall not be less than 30 inches (762 mm) in any
dimension and shall be provided with guards. The guards shall extend not less than
42 inches above the platform, shall be constructed so as to prevent the passage of
a 21-inch diameter sphere and shall comply with the loading requirements for
guards specified in the International Building Code. Access shall not require
walking on roofs having a slope greater than 6 units vertical in 12 units horizontal
i (50 percent slope). Where access involves obstructions greater than 30 inches in
height, such obstructions shall be provided with ladders installed in accordance
with Section 306.5 or stairways installed in accordance with the requirements i
specified in the International Building Code in the path of travel to and from
appliances, fans or equipment requiring service.
(c)Auxiliary and secondary drain systems. Section 307.2.3 is hereby amended to read
as follows:
307.2.3 Auxiliarvad secondary drain systems. In addition to the requirements of
Section 307.2.1,where damage to any building components could occur as a result
of overflow from the equipment primary condensate removal system, one of the
following auxiliary protection methods shall be provided for each cooling coil or
fuel-fired appliance that produces condensate:
1. An auxiliary drain pan with a separate drain shall be provided under the
coils on which condensation will occur. The auxiliary pan drain shall
discharge to a conspicuous point of disposal to alert occupants in the
event of a stoppage of the primary drain.The pan shall have a minimum
depth of 1112 inches (3 8 mm), shall be not less than 3 inches (76 mm)
larger than the unit,or the coil dimensions in width and length and shall
be constructed of corrosion-resistant material. Galvanized sheet steel
pans shall have a minimum thickness of not less than 0.0236 inch
(0.6010 mm) (No. 24 gage). Nonmetallic pans shall have a minimum
thickness of not less than 0.0625 inch(1.6 mm).
4
2. A separate overflow drain line shall be connected to the drain pan
provided with the equipment. Such overflow drain shall discharge to a
conspicuous point of disposal to alert occupants in the event of a
stoppage of the primary drain. The overflow drain line shall connect to
the drain pan at a higher level than the primary drain connection.
3. An auxiliary drain pan without a separate drain line shall be provided
under the coils on which condensate will occur. Such pan shall be
equipped with a water-level detection device conforming to UL 508
that will shut off the equipment served prior to overflow of the pan.The
auxiliary drain pan shall be constructed in accordance with Item I of
this section.
(d) 307.2.4.1 Ductless mini-split system traps. Section 307.2.4.1 is hereby stricken it
its entirety.
(e)Ventilation required. Section 401.2 is hereby amended to read as follows:
401.2 Ventilation required. Every occupied space shall be ventilated by natural means
in accordance with Section 402 or by mechanical means in accordance with Section
403.
(f) Local Exhaust. Section 403.3.2.3 is hereby amended to read as follows:
403.3.2.3 Local exhaust. Local exhaust systems shall be provided in kitchens,
bathrooms and toilet rooms and shall have the capacity to exhaust the minimum
airflow rate determined in accordance with Table 403.3.2.3.
TABLE 403.3.2.3
MINIMUM REQUIRED LOCAL EXHAUST RATES
FOR GROUP R-2r R-3, AND R-4 OCCUPANCIES
AREA TO BE EXHAUSTED EXHAUST RATE CAPACITY
Kitchens 100 cfm intermittent or 25 cfm
continuous
Bathrooms & toilet rooms 50 cfm intermittent or 20 cfm
continuous
Exception: The normal operation of bathroom and toilet room exhaust fans, as
well as kitchen range ho
od fans shall be considered adequate to satisfy the
intermittent exhaust rate requirements without the addition of additional
exhaust fans.
(g) Manicure and 12edicure stations. Section 502.20 is hereby amended to read as
follows:
502.20 Manicure and pedicure stations. Manicure and pedicure stations shall be
provided with an exhaust system in accordance with Table 403.3.1.1, Note h.
5
i
Manicure tables and pedicure stations shall be provided with factory-installed
exhaust inlets.
(h) Exhaust installation. Section 504.4 is hereby amended to read as follows:
504.4 Exhaust installation. Dryer exhaust ducts for clothes dryers shall terminate
on the outside of the building and shall be equipped with a back draft damper.
Screens shall not be installed at the duct termination. Ducts shall not be connected
or installed with sheet metal screws or other fasteners that will obstruct the exhaust
flow. Clothes dryer exhaust ducts shall not be connected to a vent connector, vent
or chimney. Clothes dryer exhaust ducts shall not extend into or through ducts or
plenums.
Exception: Back draft dampers shall not be required for vertical duct
penetrations through roofs.
s
(i) Length identification. Section 504.8.5 is hereby amended to read as follows:
504.8.5._Length identification. Where the exhaust duct is concealed within the
building construction and exceeds a total developed length of 35 feet, the
equivalent length of the exhaust duct shall be identified on a permanent label or
tag. The label or tag shall be located within 6 feet of the exhaust duct connection.
(j) Common exhaust systems for clothes dryers in multi-story structures. Section
5 04.10 is hereby amended to read as follows:
504.10. Common exhaust systems for clothes dryers located in multi-story.
structures. Where a common multistory duct system is designed and installed to
convey exhaust from multiple clothes dryers, the construction of the system shall
be in accordance with all of the following:
1. The shaft in which the duct is installed shall be constructed and fire-
resistance rated as required by the International Building Code.
2. Dampers shall be prohibited in the exhaust duct. Penetrations of the
shaft and ductwork shall be protected in accordance with Section
607.5.5, Exception 2.
3. Rigid metal ductwork shall be installed within the shaft to convey the
exhaust. The ductwork shall be constructed of sheet steel having a
minimum thickness of 0.0187 inch (No. 26 gage) and in accordance
with SMACNA Duct Construction Standards.
4. The ductwork within the shaft shall be designed and installed without
offsets.
5. The exhaust fan motor design shall be in accordance with Section
503.2.
6. The exhaust fan motor shall be located outside of the airstream.
7. The exhaust fan shall run continuously.
6
8. Exhaust fan operation shall be monitored in an approved location and
shall initiate an audible or visual signal when the fan is not in operation.
9. Makeup air shall be provided for the exhaust system.
10. A cleanout opening shall be located at the base of the shaft to proved
access to the duct to allow for cleaning and inspection. The finished
opening shall be not less than 12 inches by 12 inches.
11. Screens shall not be installed at the termination.
(k) Return air openings. Section 601.5 is hereby amended to read as follows:
601.5 Return air openings_ Return air openings for heating, ventilation and air-
conditioning systems shall comply with all of the following:
1. Openings shall not be located less than 10 feet(3 048 mm)measured in
any direction from an open combustion chamber or draft hood of
another appliance located in the same room or space.
2. Return air shall not be taken from a hazardous or insanitary location or
a refrigeration room as defined in this code.
3. The amount of return air taken from any room or space shall be not
greater than the flow rate of supply air delivered to such room or space,
except as necessary to make up air from a space on a common system
where drawing return air is prohibited.
4. Return and transfer openings shall be sized in accordance with the
appliance or equipment manufacturer's installation instructions,
ACCA Manual D or the design of the registered design professional.
5. Return air taken from one dwelling unit shall not be discharged into
another dwelling unit.
6. Taking return air from a crawls ace shall not be accomplished through
a direct connection to the return side of a forced air furnace. Transfer
openings in the crawl space enclosure shall not be prohibited.
7. Return air shall not be taken from a closet, bathroom, toilet room,
kitchen, garage,boiler room, furnace room or unconditioned attic.
Exceptions:
a. Taking return air from a kitchen is not prohibited where such
return air openings serve the kitchen and are located not less
than 10 feet(3 048 mm) from the cooking appliances.
7
Y
b. Dedicated forced air systems serving only the garage shall not
be prohibited from obtaining return air from the garage.
(f)Access port protection. Section 1102.3 is hereby deleted.
SECTION 2. THAT violation of any provision of this ordinance shall be deemed a
misdemeanor punishable as provided by Section 1.01.004 of the Code of Ordinances of the
City of Lubbock,Texas.
SECTION 3. THAT should any paragraph, sentence, clause, phrase or word of this
Ordinance be declared unconstitutional or invalid for any reason, the remainder of this
Ordinance shall not be affected thereby.
SECTION 4.THAT THAT the City Secretary of the City of Lubbock,Texas,is hereby
authorized and directed to cause publication of the descriptive caption of this Ordinance as an
alternative means of publication provided by law.
AND IT IS SO ORDERED.
Passed by the City Council on first reading this 28thday of Janua y , 2020.
Passed by the City Council on second reading this 1 l th day of Feb , 2020.
DAN POPE, MAYOR
I
ATTEST:
,Q.0A
Re t
ca Garza, City Se retary
APP VED AS TO CONTENT:
�i
Greg Zielinski',wCh of Building Official
APPROVED AS TO FORM:
�m , eputy orney