ORD 420 Require Acoustical Specialist Certification for Bldg PermitCITY OF MENDOTA HEIGHTS
DAKOTA COUNTY, MINNESOTA
ORDINANCE NO. 420
AN ORDINANCE AMENDING TITLE 12, CHAPTER 4
OF THE CITY CODE
The City Council of the City of Mendota Heights, Minnesota ordains as follows:
SECTION 1 City Code Title 12 Chapter 4, Zoning Regulations, is hereby amended in the
following respects:
Article 1 -B, subpart 12 -4 -8 is hereby amended to delete the following language:
12 -4 -8: ENFORCEMENT OF PROVISIONS:
The provisions of this chapter shall be enforced pursuant to this section.
A. Plans And Specifications:
1. Required Plans And Specifications:
a. All applicants for a building or occupancy permit shall include with the application all
plans, specifications or other information required by this chapter. The plans and
specifications shall describe in sufficient detail all pertinent features of the building,
building materials, heating and ventilation systems, including, but not limited to, the STC
ratings of exterior roof/ceilings, walls, windows, and doors; and other pertinent data as
may be requested by the city to indicate conformance with the applicable noise reduction
level requirements as specified in the noise compatibility tables. To assure the elimination
of sound leaks, the plans and specifications shall demonstrate compliance with the
following standards:
(1) A mechanical ventilation system shall be installed that will provide the minimum air
circulation and fresh air supply requirements as provided in the state and Uniform
Building Code for the proposed occupancy without the need to open any exterior doors
or windows.
(2) The perimeter of all exterior windows and door frames shall be sealed airtight to the
exterior wall construction.
(3) Fireplaces shall be equipped with well fitted chimney closing devices.
(4) All ventilation ducts, except range hoods, connecting interior space to outdoors shall
be provided with a bend such that no direct line of sight exists from exterior to interior
through the vent duct.
(5) Doors and windows shall be constructed so that they are close fitting. Weather
stripping seals shall be incorporated to eliminate all edge gaps.
(6) All penetrations through exterior walls by pipes, ducts, conduits and the like shall be
caulked airtight to the exterior construction.
b. The city may shall require that plans and specifications be certified by a recognized
acoustical specialist for compliance with this chapter. (Ord. 232, 5 -19 -1987)
SECTION 2 This Ordinance shall be in full force and effect from and after its
publication according to law.
Adopted and ordained into an Ordinance this twentieth day of January, 2009
CITY COUNCIL
Cl'
ATTEST:
been M. Swanson, City Clerk