102-90 Ordinance CORRECTED A
RECORD OF ORDINANCES
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Dayton Legal Blank Co. Form No. 30043
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Ordinance NO.n102__9() JCorrected) (A) Passed.. 19n I
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AN ORDINANCE AMENDING SECTION 1305.02 I
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.' OF THE CODIFIED ORDINANCES OF THE CITY I
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II OF DUBLIN, OHIO - ONE, TWO AND THREE- I
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FAMILY DWELLING CODE; AND DECLARING AN 1
EMERGENCY
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II WHEREAS, the Building Department has conducted research into the regulations!
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\1 WHEREAS, the findings suggest that current regulations need to be enforced
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NOW, THEREFORE, BE IT ORDAINED by the Council of the City of Dublin, State
II of Ohio, ~of the elected members concurring:
Section 1. That Chapter 1305, Section 1305.02(b), be amended to read as
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, follows: The CABO One, Two & Three-Family Dwelling Code, Chapter 2, i
I! Sections R-201.2, Table R-201.2, be amended and changed to add the following!
to Table R-201.2. i
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II Roof Live Load lbs. ft. - 20
II per sq.
II Roof Snow Load lbs. per sq. ft. - 20
II Wind Pressure in lbs. per sq. ft. - 24
II Seismic Condition by Zone - 1
II Subject to Damage from Weathering - Moderate
II Subject to Damage from Weathering - Frost Line Depth 36"
II Subject to Damage from Termite - No
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I Subject to Damage from Decay - No
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II Section 2. That Chapter 1305, Section 1305.02(c), be deleted.
That Chapter 1305, Section 1305.02(c) be added to read as
il Section 3.
follows: The CABO One, Two & Three-Family Dwelling Code, Chapter 2, Section
I, 208.4(5) be amended and add the following: Glazing in shower and bathtub
II doors and enclosures. This includes all glazing within a vertical distance
'I of six (6)feet measured from the bottom of the tub and a horizontal
II distance of three (3) feet.
II Section 4. That Chapter 1305, Section 1305.02(d) be deleted.
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II Section 5. That Chapter 1305, Section 1305.02(d) be added to read as
II follows: The CABO One, Two & Three-Family Dwelling Code, Chapter 2, Section
Ii R-209.2 be amended as follows: The garage shall be completely separated
I from the residence and its attic area by means of five-eighths inch gypsum
I "fire rated" board or equivalent applied to the garage side.
,I Section 6. That Chapter 1305, Section 1305.02(e), be deleted.
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II Section 7. That Chapter 1305, Section 1305.02(e) be added to read as
'I follows: The CABO One, Two & Three-Family Dwelling Code Chapter 2,
I Section R-214.2 be amended and add to the end of the section the following:
Guardrail( s) that form a part of handrails on open side of stairs shall
II have a height of not less than thirty (30) inches and not more than
I thirty-six (36) inches, measured vertically from the nosing of the tread.
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I Section 8. That Chapter 1305, Section 1305.02(f), be deleted.
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I Section 9. That Chapter 1305, Section 1305.02(f) be added to read as
follows: The CABO One, Two & Three Family Dwelling Code, Chapter 2,
Section R-218 be amended as follows: Dwelling Units in two and three-family
dwellings shall be separated from each other by wall and/or floor assemblies
of not less than one hour fire resistance rating when tested in accordance
with ASTME-119 listed in Section S-26.218. Fire-resistance-rated Lloor-
ceiling and wall space assemblies shall extend to and be tight against the
exterior wall, and wall assemblies shall extend to the underside of the
roof sheathing.
RECORD OF ORDINANCES
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Dayton Legal Blank Co. Form No. 30043
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Ordinance No. ut02-90___ Passed 19_ . - J--
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I Section 10. That Chapter 1305, Section 1305.02(g), be amended to read as i
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! follows: The CABO One and Two Family Dwelling Code, Chapters 20, 21, 22 I
23, 24 and 25 are deleted in their entirety.
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Section 11- That Chapter 1305, Section 1305.02(h) be amended to read as
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I follows: Double cylinder dead bolts requiring a key operation on both sides
are prohibited.
(Ord. 20-87. Passed 3-16-87.)
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I Section 12. That Chapter 1305, Section 1305.03, be deleted.
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II Section 13. That this Ordinance be declared an emergency as it is necessary
to regulate the rules and regulations of the Building Department and to
II promote the general health, safety and welfare of the residents.
! Section 14. That this Ordinance will become effective on January 1, 1991.
Passed this 19th day of November , 1990.
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Attest:
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Clerk of C un '1
Sponsor: Peter Lenz, Chief Building Official
J hereby certify that copies of thls Ord:nllllcelRe.!:olufon were posted in the
Gty of Dublin in accordance with Setfion 731.25 of the Ohio Revised Code.
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,I Clerk of Council, Du lin, Ohio
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Part 11- Building Planning ~
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Chapter 2 h
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BUILDING PLANNING !J
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SECilON R.201 - DESIGN CRITERIA ..
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R-201.1 Design: Buildings and structures. and all pans thereof. shall be 11
designed and constrUcted to support safely all loads, including dead loads. ~
without exceeding the allowable stresses (or ultimate strengths when ap- ;;;
propriate load factors are applied) for the materials of constrUction in the ~
structural members and connections. ~
R-201.2 Climatic criteria: Buildings shall be constrUcted in accordance i
with the provisions of this code using the design criteria set forth in Table ~
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No, R-201.2. These criteria shall be established by the jurisdiction based ~
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solely or in part on the climatic and geographic conditions set forth in Ap- -!
pendix A. 's
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Table No. R-201.2 J
CliMATIC AND GEOGRAPHIC DESIGN CRITERIA ~,
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SUB.lECT TO SUBJECT TO J
ROOF UVI! ROOF SNOW WIND SElS..IC O........GE FRO,., O...,....GE FRO"> ~i
~O"'D' ~O"'D' PRESSURE' CONDITION Tonnllo \ ;l
(UlL per (UlL per ~n. UlL BY Froat Une
SQ. Fll SQ.FI.l per $Q. Fl,\ ZONI! W..IIlannq Oootll Ooca, l
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I Rool live and snow loads are not additive. "'t
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'Weathering may require a higj1.r sucngth concrete or grade 01 masonry than neccssatY to satisiy strUctural :1
requirements oi this code. Tne weathering column shall be lilled in WIth the weathering u,dex (i.... ;t
- - -n.giigible. - -moderate- or .scvuci for cancret. as dct.mulled from lhe Weath.ring PrababllilY Maa In \ ,I
- - Appenoix A. The grade of masonry units shall be d.termined frolD ASn.t C34. OS. C62, 03. C90. C145. :i-
016. or C6S2lisled in Section 5.26,201. The irost line d.ptn may reqwrc deeper lootings than indic:ued in cS
- Figure No, R.303, The jurisdiction shall fill in the frost line d.pth column with '"ycs. or -no, - including ",.
lDlnimum depth ai footil1~ below fmisn grad.. --
JThe jurisdiction snail fill in this part ai th. tabl. with '"yes. or -~o - depending on wheth.r th.re has been a :1
history oi loc:al damage, "
'The jurisdiction shall nil in this ponion of the table with WInd design loads determined from the Wind \ I
Probability Map in Appendix A. -:
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R-201.3 Dead load: In estimating the dead load for the purposes of strUc- ::i
rural design. the actual weights of materials and consmlction shall be used :1
with consideration for the dead load of fixed service equipment. ;1-
R-201.4 Live load: The minimum uniformly distributed live load shall be II
as provided in Table No. R-201.4.
R-201.5 Partition load: Interior walls and partitions shall be designed to .~.:
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resist a minimum lateral load of 5 psf. , :!t
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Building Planning
i R-208.2 Louvered windows or jalousies: Regular plate. sheet or patterned
glass in jalousies and louvered windows shall be no thinner than nominal
7(32 inch and no longer than 48 inches. When other glass types are used.
design shall be submitted to the building official for approval. Exposed
glass edges shall be smooth.
Wired glass with wire exposed on longitudinal edges shall not be used
in jalousies or louvered windows.
R-208.3 Human impact loads: Individual glazed areas in hazardous loca-
tions such as those indicated in Section R-208.4 shall pass the test require- I
ments of CPSC 16-CFR, Part 1201 listed in Section S-26.208. or by
comparative test shall be proven to produce at least equivalentperforman-
ces.
Exceptions
1. Polished wire glass for use in fIre doors, fIre windows and view
panels in I-hour fue-resistive walls shall comply with ANSI Z97.1 I
listed in Section S-26.208.
2. The unbacked specimens of plastic materials shall be exposed in
Arizona and Florida to 45 degrees facing south for three years. Ap-
proved plastic materials shall be acceptable if the impact strength
is not reduced by more than 25 percent during exposure when
tested in accordance with Section 1201.4 (c) (2) (ii) of the CPSC \
standard, referenced in this section. Some discoloration is permis-
sible, but defects other than this discoloration shall not be permis-
sible. No bubbles or other noticeable decomposition shall be
permissible in the irradiated portion.
R-208.4 Hazardous locations: The following shall be considered specific
hazardous locations for the purposes of glazing:
1. Glazing in ingress doors except wired glass in required fire doors
and jalousies.
2. Glazing in fIxed and sliding panels of sliding-type doors (patio and
- - mall type).
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- 3, Glazing in storm doors.
4, Glazing in all unframed swinging doors.
5. Glazing in shower and bathtub doors and enclosures.
6. Glazing. operable or inoperable adjacent to a door in all buildings
and within the same wall plane as the door whose nearest vertical
edge is within 12 inches of the door in a closed position and whose
, bottom edge is less than 60 inches above the floor or walking sur-
face.
7. Glazing in fIxed panels having a glazed area in excess of 9 square
feet with lowest edge less than 18 inches above the finished floor
. level or walking surface within 36 inches of such glazing. In lieu
, of safety glazing such glazed panels may be protected with a
: horizontal member not less than 1112 inches in width when located
between 24 and 36 inches abo'.le the walking s~ces.
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One and Two Family Dwelling Code
R-208.6.4 Screens with multiple glazing: When the inboard pane is fully-
tempered. heat-strengthened. or wired glass. a. retaining screen meeting the
requirements of Section R-208.6.6 shall be installed below the glass. ex-
cept for either condition listed in Section R-208,6.5. All other panes in the
multiple glazing may be of ~y type listed in Section R-208.6.2.
R-208.6.5 Screens not required: Screens shall not be required when fully-
tempered glass is used as single glazing or the bottom pane in multiple glaz- .,
ing and either of the following conditions are met:
1. Glass area 16 square feet or less: Highest point of glass not more
than 12 feet above a walking surface or other accessible area. ,
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nominal glass thickness not more than 3/16 inch (5 mm). and (for I
multiple gl3.7.ing only) the other pane or panes fully-tempered. \
laminated or wired glass. i
2. Glass area greater than 16 square feet: Glass sloped 30 degrees or \
less from vertical. and highest point of glass not more than 10 feet
above a walking surface or other accessible area. i
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R-208.6.6 Scr~n characteristics: The screen and its fastenings shall (1) I
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be capable of supporting twice the weight of the glazing. (2) be fIrmly and I
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substantially fastened to the framing members. and (3) have a mesh open- I
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ing of no more than 1 inch by 1 inch. I
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R-208.6.7 Curbs for skylights: All unit skylights installed in a roof with .
a pitch flatter than 3: 12 shall be mounted on a curb extending at least 4 inch- .
es above the plane of the roof.
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SECTION R-209 - AlTACHED GARAGES
R-209.1 Opening protection: Openings from a private garage directly into ,
a room used for sleeping purposes shall not be permitted. Other openings :
between the garage and residence shall be equipped with solid wood doors
not less than 13/8 inch in thickness or equivalent. ;
- - R-209.2 Separation required: The garage shall be completely separated .
- - from the residence and its attic area by means of 1/2-inch gypsum board or
- - equivalent applied to the garage side. \
R-209.3 Floor surface: Garage and carport floor surfaces shall be of ap-
proved noncombustible material. That area of floor used for parking of
automobiles or other vehicles shall be sloped to facilitate the movement of
liquids toward the main vehicle entry doorway, Where approved by the
building official. other means of dispersing spilled liquids from the area
may be used to prevent the flow of liquids through doorways into adjoin-
ing enclosed areas of the dwelling.
SECTION R.21 0 - EXITS
R-210.1 Exit required: Not less than one exit conforming to this chapter
shall be provided from each dwelling unit.
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One and Two Family Dwelling Code
I and the rise shall be no more than 9112 inches. A minimum headroom of 6
feet 6 inches shall be provided.
Figure No. R-213.1 I
STAIRWAYS .
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NOTE: OPEN RISERS OPTlONAI. ~
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SECTION R.214-HANDRAILS AND GUARDRAILS
R-2l4.1 Handrails: Handrails having minimum and maximum heights of
30 inches and 34 inches, respectively, measured vertically from the nosing
of the treads, shall be provided on at least one side of stairways of three or
more risers and shall be continuous the full length of the stairs and shall ex-
tend 6 inches beyond the top and bottom risers. Ends shall be returned or
shall terminate in newel posts or safety terminals.
Open sides of stairs with a total rise of more than 30 inches above the
floor or grade below shall have guardrails.
The handgrip portion of the handrails shall be not more than 25/8 inches
- - in cross-sectional dimension, or the shape shall provide an equivalent grip-
- - ping surface. The handgrip portion of handrails shall have a smooth surface
- with no sharp comers.
Handrails projecting from a wall shall have :l space of not less than 1112
inches between the wall and the handrail.
R-214.2 Guardrails: Porches. balconies or raised floor surfaces located
more than 30 inches above the floor or grade below shall have guardrails
not less than 36 inches in height.
Required guardrails on open sides of stairways, raised floor areas, bal-
conies and porches shall have intermediate rails or ornamental closures
which will not allow passage of an object 6 inches or more in diameter.
SECTION R-21S - SMOKE DETECTORS :
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R-2lS.l Smoke detectors required: Smoke detectors shall be installed
outside of each separate sleeping area in the immediate vic'inity of the ,
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Building Planning . ; ;
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R-2l6.3 Specific approval: Plastic foam not meeting the requirements of .;j
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Sections R-2l6.1 and R-2l6.2 may be specifically approved on the basis of ::j
approved tests such as, but not limited to, a tunnel test in accordance with \
ASTM E84, FM 4880, UL 1040, ASTM E152. or SPI PICC 401, listed in "
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Section S-26.216, or fire tests related to actual end-use configurations. The .,
specific approval may be based on the end use, quantity. location and
similar considerations where such tests would not be applicable or practi-
cal.
Foam plastics which are used as interior fmish shall also meet the flame-
spread requirements for interior finish.
SECTION R.217 - FLAME. SPREAD AND SMOKE DENSITY
R-2l7.l Wall and ceiling: Wall and ceiling fmishes shall have a flame-
spread classification of not greater than 200.
Exception: Flame-spread requirements for finishes shall not apply to .-.;
trim defmed as picture molds, chair rails, baseboards and handrails; to
doors and windows or their frames; nor to materials which are less than . ..
I/2S-inch in thickness cemented to the surface of walls or ceilings if these ..
materials have a flame-spread characteristic no greater than paper of this
thickness cemented to a noncombustible backing. ..
R-2l7.2 Insulation: All exposed insulation materials. including facings. ..
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such as vapor barriers or breather papers installed within the floor-ceiling
assemblies. roof-ceiling assemblies, wall assemblies. crawl spaces orattics,
shall have a flame-spread rating not to exceed 25.
Exception: When such materials are installed in concealed spaces. the
flame-spread and smoke development limitations do not apply to the ..
facings, provided that the facing is installed in substantial contact with "
the unexposed surface of the ceiling. floor or wall finish. ...-
R-2l7.3 Smoke density: The smoke density shall be not greater than 450. .0
- - R-2l7.4 Testing: Tests shall be made in accordance with ASTM ES4listed
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- in Section S-26.2l7.
SECTION R-218 - DWEWNG UNIT SEPARATION
Dwelling units in two-family dwellings shall be separated from each
other by wall and/or floor assemblies of not less than I-hour fire-resistive ;
rating when tested in accordance with ASTM E119 listed in Section S- I
26.21S. Fire-resistive-rated floor-ceiling and wall assemblies shall extend ,-
to and be tight against the exterior wall, and wall assemblies shall extend
to the underside of the roof sheathing. -
SECTION R-219 - RAMPS ..
All egress ramps shall have a maximum slope of 1 in S.
Handrails shall be provided on at least one side of all ram'ps exceeding
a I in 12 slope,
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'0 Chapter 1
See. R-llS, page 5. Add definition as follows (R2-89):
Hollow masonry: Load-bearing or nonload-bearing construction using
masonry units where the net cross-sectional area of each unit in any plane
'r:. parallel to the bearing surface is less than 75 percent of its gross cross-sec-
"\.-...'" tional area. Hollow masonry units shall conform to ASTM C90. C129 or
C652 listed in Section 5-26.115.
Chapter 2
-r\ Table No. R-201.2, page 9. Revise Footnote 2 to read as follows (R3-89):
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- Weathering may require a higher strength concrete or grade of masonry than
necessary [0 satisfy structural requirementS of this code. The weathering column
shall be filled in with the weathering index (j,e.. "negligible:' "moderate" or
"0 "severe') for concrete as determined from the Weathering Probability Map in
Appendix A. The grade of masonry unitS shall be determined from ASTM CJ4.
C55. C62. C73. C90. C129. C145. <:116. or C652 listed Section S-26.201. The
frost line depth may require deeper footings than indicated in Figure No. R-303.
The jurisdiction shall fill in the frost line depth column with "yes" or "no:'
-A including minimum depth of footing below tinish grade.
......, Sec. R-214.1, page 20. Revise section to read as follows (R14-89):
R-214.1 Handrails: Handrails having minimum and maximwn heights of
30 inches and 34 inches. respectively, measured vertically from the nosing
of the treads. shall be provided on at least one side of stairways of three or
more risers and shall be continuous the full length of the stairs. Ends shall
.'''' be returned or shall terminate in newel posts or safety terminals.
~ Open sides of stairs with total rise of more than 30 inches above the floor
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- - or grade below shall have guardrails.
- - The handgrip portion of the handrails shall not be more than 25;8 inches
in cross-sectional dimension. or the shape shall provide an equivalent
gripping surface, The hand grip portion of handrails shall have a smooth
-- surface with no sharp comers.
-; ~ Handrails projecting from a wall shall have a space of not less than Ill!
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inches between the wall and the handrail.
See. R-214.2, page 20. Revise section to read as follows (R16-89):
R-214.2 Guardrails: Porches. balconies or raised floor surfaces located
more than 30 inches above the floor or grade below shall have guardrails
not less than 36 inches in height.
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1990 Amendments
Required guardrails on open sides of stairways. raised floor areas. bal-
conies and porches shall have intermediate rails or ornamental closures
which will not allow passage of an object 4 inches or more in diameter. 0
Exception: TIle triangular openings formed by the riser. tread and
bottom rail of a guard at the open side of a stairway may be of such a
size that a sphere 6 inches in diameter cannot pass through,
Sec. R-2IS.I, page 20. Revise section to read 3S follows (R17-89):
R-2IS.1 Smoke detectors required: Smoke detectors shall be installed t:)
outside of each separate sleeping area in the immediate vicinity of the I
bedrooms and on each additional story of the dwelling. including basements
and cellars but not including crawl spaces and uninhabitable attics. In
dwellings or dwelling units with split levels. a smoke detector need be
installed only on the upper level. provided the lower level is less than one
full story below the upper level. except that if there is a door between levels.
then a detector is required on each level. All detectors shall be intercon-
nected such that the actuation of one alarm will actuate all the alarms in the 0,
individual unit and shall provide an alarm which will be audible in all
sleeping areaS. All detectors shall be approved and listed and shall be
installed in accordance with the manufacturer's instructions.
When altemtions. repairs or additions requiring a permit occur. or when 0,
one or more sleeping rooms are added or created in existing dwellings. the
entire building shall be provided with smoke detectors located as required
for new dwellings; the smoke detectors are not required to be intercon-
nected unless other remodeling considerations require removal of the
appropriate wall and ceiling coverings to facilitate concealed intercon- 0:
nected wiring.
- - Sec. R-21S.2, page 21. Revise section to read as follows (RI8-89):
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- R-21S.2 Power source: Required smoke detectors shall receive their
primary power from the building wiring when such wiring is served from
a commercial source. and when primary power is interrupted. shall receive
power from a battery. Wiring shall be pennanent and without a disconnect- 0
ing switch other than those required for overcurrent protection, Smoke
detectors may be battery operated when installed in buildings without
commercial power.
Sec. R-216.1, page 21. Revise fourth paragr3ph to read as follows
(R19-89): QJ
TIle thermal barrier shall be installed in such a manner that it will remain
in place for the duration of the particular test used. the procedures outlined
in either UL 1715. FM 4880 or UL 1040 listed in SectionS-26.216 and meet
the acceptance criteria thereof.
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