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FINISHING A BASEMENT

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					                               CITY OF LOUISVILLE
                            BUILDER ASSISTANCE PROGRAM



                           FINISHING A BASEMENT

The City of Louisville "Builder Assistance Program" is intended to help contractors and the
general public understand the requirements for building certain projects within the City and
provide guidelines for obtaining a building permit.

Your submittal information for a Building Permit must include the following information:

1.    Fill out a building permit application as completely and accurately as possible.
Application forms for building permits may be obtained at the Building Division Counter.
Please note if a contractor is to be employed, they must be licensed with the City of Louisville
and noted on the application.

2.    Provide two (2) copies of construction plans or this Building Guide
with the appropriate blanks filled in indicating construction details.


The majority of permit applications
are processed with little delay. The
submitted documents will help
determine if the project is in
compliance with building safety
codes, zoning ordinances and other
applicable laws. The more complete
and accurate the submittal, the easier
and quicker it is to approve plans and
issue a permit. Please note that the
City does not review plans for
compliance        with     subdivision
covenant agreements. You should
contact     your      home       owners
association for specific restrictions.
                                             CITY OF LOUISVILLE
                                       BUILDER ASSISTANCE PROGRAM

                                         FINISHING A BASEMENT
Building permits must be obtained from the City's Building Division prior to starting your project.

Construction plans or the completed Building Guide must be submitted with your permit application for approval
before a building permit may be issued. Approved project plans must be kept on the job site and available to the
inspector for review at the time of inspection and should be followed as closely as possible during the construction of
the project. Any changes or modifications you may wish to make to your plans after they have been reviewed and
approved by the City must be submitted to the Building Division for approval prior to proceeding with your changes.

      Your construction plans must include:
      A floor plan showing room uses, dimensions, ceiling heights, size and location of all doors, windows, and all
      egress window well details (section view), and the location and details of any existing finished areas.

       An electrical plan showing the location of all switches, outlets, light fixtures, and any other appliance or fixture
      requiring electrical power.

      A plumbing plan, if applicable, showing the location of all plumbing fixtures and the size and location of all
      waste, vent, and water piping serving such fixtures.

      A mechanical plan showing furnace and water heater location, supply and return air ducts, required
      combustion air ducts, dryer vents, bath fans and ducts, and any other changes or additions to your heating or
      ventilation system.

      Note: Electrical, plumbing, and mechanical plans may be drawn separately or combined with the floor plan.

With the issuance of a building permit, each permittee will be issued an inspection record card for the City Building
Inspector to enter the results of each required inspection. During the construction of your project, it will be necessary for
you to call the Building Division and request all inspections required for your particular project.

      Basements require the following inspections:
         1. Underground Plumbing
         2. Rough Electrical, Framing, Plumbing and Mechanical
         3. Insulation
         4. Wallboard
         5. Above Ceiling

                                                           IMPORTANT NOTE
  When the valuation of construction work on an existing structure exceeds $1000 the entire structure must be brought into
  compliance with UBC section 310, re: smoke detectors. Install smoke detectors on ceiling as follows:
      One detector in each sleeping room AND one detector centrally located in each corridor or area giving access to
      each separate sleeping area AND one detector on each floor, story, and/or basement.
      In split levels - One detector on upper level, unless lower level contains a sleeping area, then one detector per level.
      In split levels with sleeping room on upper level, place detector on ceiling near stairway.
      If the ceiling height of a room is 24" or more higher than the ceiling of an adjacent hallway which serves a
      sleeping room then a detector must be installed in both hallway and room.
  Smoke detectors must be audible in all sleeping areas. Smoke detectors may be solely battery operated when installed in existing buildings.


                        Our staff is here to assist you in building a safe and durable structure.
                You may contact the City of Louisville Building Safety Division at (303) 666-6565 Ext.154.
                         Appointments for inspections must be scheduled by calling Ext. 153.
                                       Visit our website at www.ci.louisville.co.us
               City of Louisville                                                         BASEMENT FINISH DETAILS
                 Building Safety Division




                            Floor Joist                                                                         Floor Joist



   Typical Soffit                                                         Firestop here with 11/2 inch
                                                                          lumber same depth as joist
Firestop here                                                                         or




                                                                                                                                                     Existing concrete foundation wall
   or here                                                     Firestop here with plywood or gypsum board.
with plywood                                               Firestop concealed spaces of furred walls at 10 foot
or gypsum board.                                            intervals along the length of the wall with 2x4 lumber,
                             Finish material               3/4 inch plywood or gypsum board nailed to wall studs
     or
Firestop here                                              and held tight to concrete foundation wall from floor
with 2x4                                                   to ceiling. Fill remaining gaps at top and bottom with
                                                           mineral wool or fiberglass insulation.



                                                                                           Concealed space of furred wall

                                                                Wall finish material


                                     Typical 2x4 interior partition                  Typical 2x4 perimeter curtain wall

                                          40d nails every 24 inches through bottom plate into floor plate
                                                  Pe-drill holes in bottom plate for 40d nails
                                                                1 1/2 inch void space

                                                       2 x4 floor plate anchored to floor slab
                                                   Spacer - same thickness as wall finish material
            Basement floor slab                                                                                         Basement floor slab




                                                                                                                 EMERGENCY ESCAPE
                    EGRESS WINDOW WELL                                                                           & RESCUE WINDOW
                              Net clear dimensions when fully opened                                           20" clear
                              to provide 9 square feet of opening
    Window well
                                                                                                                                              34 1/8 clear
Ladder or
                                                                           36" min




stair required
                                                                                                   41" clear




                                                                                                                                                                                         24" clear




                                                                                                                 Openable area = 5.7 sq ft.
                                                                 36" min
                              Emergency
                    >44       escape or rescue
                              opening with
                                                          Ladder or stair                         Minimum size window                    Minimum size window
                              finished sill height
                                                          per mitted to                           for 20" clear width                    for 24" clear width
                              below adjacent grade
                                                          encroach a maximum                                                    44"max.
                                                          of 6" into required
                                                          dimensions                                                             Floor
                                  City of Louisville
                                  Building Safety Division


                                                                   BASEMENT SAMPLE FLOOR PLAN




                                                                  30"
                                                                                    9' 6"


                                                              Heat           $                                    3' 1"
          Existing 4"
          rough drain                                                                  26
                                                              n
6' 4"




                                                            Fa




                                                                         Bath



                                                                                                                               5 0 BF
                                                                                                                                                                 Unfinished




                                                                                                                                           5 Shelves
                                                                  t
                                                             gh




                                                                                                                                                                                                                          13' 2"
                                                                         60 sq ft                                 RC
                                                                                                                                                                 251 sq.ft.
                                                           Li




                                                                                                      $$




                                                                             G      Vanity
                                                                             F
                                                                             I        40

                                         Connect to
                                         existing vent                                                                                     H.W.
                  Rod & Shelf




                                                                        26                                   RC
                                                                                                                                                         Provide (lower)
                                                                                                                                                 e
                                                                                                                                            ac



                                              Soffit                                                                                                     combustion air duct
                                                                                                                                          rn




                                                                                            Soffit @ 7' 6"
                                                                              $
                                                                                    $




                                                                                                                                        Fu




                                              @ 7' 6"             SD
                                6 0 BF




                                                                                                                                                                                                    6 0 Bullet Latch
          7' 8"




                                                                                             SD                                                                                                $$
                                                                             Heat




                                                                                                             RC                                        Existing Stair
                                                                                                                                                                              Up                             RC
                                                                                                                          38    Under                  (finished)
                                                                                                                                Stair Storage                                                          Place new
                                          Guest Bedroom




                                                                                                                                                                                                                          14' 0"
                                                                                                                                                                                                       frame to
                                                                                                                                 $
                                             (car pet)                                                                                     Soffit @ 7' 6"                                              accomodate pipes
                                           145 sq ft
  5' 6"




                                                                                                             RC                                                RC                                            RC

                                              30 x 28
                                                                                            Soffit @ 7' 6"




                                                                                                                                        Recreation Room                                         Heat
                                           Egress
                                           W indow                                                           RC                             (car pet)
                                                     30




                                                                                                                                                                              Soffit 7/6" ht




                                                                                                                                           582 sq.ft.
                                              40
 10' 0"




                                                                                                                                                                                                                          4' 0"
                                                                                                                                                                                                            12' 0"
                                    Ladder                                                                   RC                                                RC


                                                                                                                                                        60   Sliding                                Frame for pipes
                                                                                       Heat
                                                                                                                                                             Door       $



                                                         10' 0"                                                                           19' 2"



                                Existing Basement Wall
                                New Frame Wall
            City of Louisville                                               COMBUSTION AIR REQUIREMENTS
                                                                              FOR FUEL BURNING APPLIANCES
            Building Safety Division




SEC. 701.1 AIR SUPPLY. Fuel-burning equipment shall be assured a sufficient supply of combustion air. The methods of providing
combustion air in this chapter do not apply to direct-vent appliances, appliances listed as having separated combustion, listed cooking
appliances, refrigerators and domestic clothes dryers.

Sec. 702.1 LOCATION. One opening shall be located within the upper 12 inches of the enclosure and one opening shall be located
within the lower 12 inches of the enclosure.

                                                            TABLE 7-A
                                 SIZE OF COMBUSTION-AIR OPENINGS OR DUCTS


                           CONDITION                                                SIZE OF OPENING OR DUCTS
                                                                                               x 0.293 for W
                                                                                             x 645.2 for mm2

  Appliance in unconfined space:                                      Provide two openings, each having 1 sq.in. per 5,000 Btu/h
  Obtain combustion air from outdoors or from space freely            input. Ducts admitting outdoor air may be connected to the
  communicating with outdoors.                                        cold-air return.

  Appliance in confined space:                                        1. Provide two vertical ducts or plenums; 1 sq.in. per 4,000
  Obtain combustion air from outdoors or from space freely            Btu/h input each duct or plenum.
  communicating with outdoors.                                        2. Provide two horizontal ducts or plenums; 1 sq.in. per 2,000
                                                                      Btu/h input each duct or plenum.
                                                                      3. Provide two openings in an exterior wall of the enclosure;
                                                                      each opening 1 sq.in. per 4,000 Btu/h input.
                                                                      4. Provide one ceiling opening to ventilated attic and one
                                                                      vertical duct to attic; each opening 1 sq.in. per 4,000 Btu/h
                                                                      input.
                                                                      5. Provide one opening or one vertical duct or one horizontal
                                                                      duct in the enclosure; 1 sq.in. per 3,000 Btu/h input but no
                                                                      smaller than vent flow area.
                                                                      (See Table 7-B, next page)
                                                                      6. Provide one opening in enclosure ceiling to ventilated attic
                                                                      and one opening in enclosure floor to ventilated crawl space;
                                                                      each opening 1 sq.in. per 4,000 Btu/h input.




 Unconfined Space:      A room or space having a volume equal to at least 50 cubic feet per 1,000 Btu/h (4.831 L/W) of the aggregate
 input rating of all fuel-burning appliances installed in that space. Rooms communicating directly with the space in which the
 appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space.

 Confined Space: A room or space having a volume less than 50 cubic feet per 1,000 Btu/h (4.83 L/W) of the aggregate input
 rating of all fuel-burning appliances installed in that space.
          City of Louisville                                         COMBUSTION AIR REQUIREMENTS
                                                                      FOR FUEL BURNING APPLIANCES
           Building Safety Division                                                                            continued




EXCEPTION: When all air is taken from the outdoors for an appliance with a minimum clearance of 1 inch on
the sides and back and 6 inches on the front, one opening shall be permitted and located within the upper 12
inches of the enclosure.

The one opening can be sized per Table 7-A as follows: "5. Provide one opening or one vertical duct or one
horizontal duct in the enclosure; 1 sq. in. per 3000 Btu/h input but no smaller than vent flow area." The
following table shows the required outside air duct size to be used for this type of installation.


                                                      TABLE 7-B



  DUCT SIZE (Round)                        CROSS SECTIONAL AREA                              MAX BTU INPUT

           4"                               12.6 Sq. In.                                       37800 Btu/h


           5"                               19.6 Sq. In.                                       58800 Btu/h


           6"                               28.3 Sq. In.                                       84900 Btu/h


           7"                               38.5 Sq. In.                                       115500 Btu/h


           8"                               50.2 Sq. In.                                       150600 Btu/h


           9"                               63.6 Sq. In.                                       190800 Btu/h


           10"                              78.5 Sq. In.                                      235500 Btu/h

				
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