HomeMy WebLinkAbout1989/06/19 Board of Appeals & Advisors Agenda Packet
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Item 2B
Page One
CITY OF CHULA VISTA
BUILDING AND HOUSING DEPARTMENT
APPLICATION FOR A CODE MODIFICATION OR USE OF
AN ALTERNATE MATERIAL OR METHOD OF CONSTRUCTION
1.
a. The Board of Appeals ;s legally empowered to (1) investigate and advise
on the suitability of alternate materials and types af construction,
(2) provide reasonable interpretations of the building laws where the
meaning may be obscure, and (3) recommend new legislation to the City
Council. The Board may recommend approval of minor deviations of the
building laws in certain cases.
b. The Director (Building Official) is authorized to permit code modification
and to approve the use of alternate materials and methods of construction.
2. All Appeals must be within the scope of authority described above. Only
those items requested in writing in this appeal will be considered.
3. Board of Appeals hearings are open for public attendance. You wi 11 be
notified of the hearing date.
4. Address all communications to: Director, Building and Housing Department,
P.O. Box 1087, Chula Vista, California 92012.
APPLICANT FILL IN BELOW THIS LINE, THIS SIDE ONLY - PLEASE PRINT OR TYPE
Job Address :!¿,Ol J\ED JIILI LIi).lE Lot
OWnerl s Name Owner sMall i n9
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0 F !f/JIYK KO:zAf( 'to) RED )JILL
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~ Designer s Name Te ephone No. Job Status
'" 0 Proposed [] Existing Bldg.
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- Existing Use Proposed Use lan Fl e No. ~ Under Construction
PI! TJ,!? [] Complete New Building
Clearly define all items requested in the appeal. Submit Other Documents 0 Yes
plans and other documents as necessary to explain and Submitted With ø No
su art re uest. Re uest
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State why it is necessary or desirable that this request be approved and what
arran ement, device or construction is ro osed as e uivalent to that re uired.
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THIS SIDE FOR DEPARTMENT'S USE ONLY
Case Number
5-89
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1601 Red Hill lane
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Addit10nal
Invest'gated by: ,t e Date
Kenneth G. Larsen, C.B.O. Director of Bldg & Hsg June 12, 1989
0'" Patio cover constructed under permit no. 69645, issued on January 16, 1989. During
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«8 frame inspection. the header height was observed to be approximately 6'3".
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zu Per City Patio Cover Specifications adopted in July, 1980, (Form 8-416) defined a
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"' >- Reference to Appendix Section 4901, the established height criteria for patio covers
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ow are a maximum height of 12'0" and also implies a minimum clearance of 6'8'1 for light
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>->- and ventilation requirements for the dwellin~ unit.
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ww Staff recommends that the Board of Appeals and Advisors direct the department to
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>.: prepare a revlsed Patio Cover Specification sheet with a recommended header height
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u20 at 6'8". Staff will also incorporate changes to rafter span and support column
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"'0 tables for simplified application by the permit applicants.
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6-419 (Revised 8(79)
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Item 2 B
Page Two
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,.. , Item 2B
Page Three
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Item 28
Page Four
CITY OF CHULA VISTA BUILDING DEPARTMENT
TYPICAL LIGHTWEIGHT PATIO COVERS
TYPICAL FRAMING DETAIL
/ ROOF LlVELOAO . 10 psf
"''';'-::.-
ROOF DEAOLOAD . 7 psf
MIN. 18 Ga.
JOIST HANGER ALL LUMBER TO BE DOUGLAS FIR/LARCH NO. 2
OR BETTER.
LEOGER TO HOUSE \
ATTACHMENT
SEE NOTES MINIMUM RAFTER SIZES
a ter ae n en er 0 enter
x
7 2 x 4
8 2 x 4
9 2 x 4**
10 2 x 4**
x
12 2 x 4**
13 2 x 6
14 2 x 6
15 2 x 6
x
~ , 17 2 x 6
18 2 x 6
¡ 19 2 x 6
, 20 2 x 8
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,l'J- PI ER FOOTI NGS Post MINIMUM BEAM SIZES
Spae- a ter an t.
Continuous loI1d blockinCj1 betw..n joists ing
mort than 8 i~ depth Ft. 18
x
LATERAL BRACING DETAILS 414
416
I"X. 4MX3Q" ~..,. .,,''''
Broce /1.,.--
6..8d noil.
each end
Ye" II: 2" stet I liT" .trap
IOd noill at 2" Q.C. max. MI
~. Plywood 24M wid. 2"" 4'" or
x 16" lonq 4........
IOd at S"O.c. BracI 24" fOnQ
18 20 22 24 24 27 27 30
4"'6" ðß" 20 20 24 24 27 27 30 30
on~8$ 3" lon9 . See paragraph on post anchorage
, (Specifications on other side.)
'12".10" /11i' ~I
.. After prolonged periods of time 2 x 4 rafters
anchor bolts -:--; J,.,"! /' '\ 7'"' spanning over 8 feet may deflect permanently
, '~ '
1..::-" --- .: -.' j'/, and give an objectionable appearance. It is
...... 1 ",' metal ... )- J,, ¡ therefore recommended that for rafter spans
.. ~~ bose plotl! ~"'......! ~~..~ exceeding 8 feet a minimum rafter size of
where wood ... ·..1.... 2 x 6 be used.
contacts masonry ~..
or concr.t. See dimension "A" on "Anchor and Footing
...
ANCHOR AND FOOTI NG DETAILS Details"
Fo,,,, B- 416 Aev.7-80)
PATIO COVER - SPECIFICATIONS
GENERAL: Patio covers Ire one-story structures not exceeding 12' above grade and used only for recreational, outdoor
living purposes and not as carports. garages, storeroom or habitable areas. i
,
FOR INFORMATION CONCERNING AREA PERMITTEO TO BE
ENCLOSED AND TYPE OF MATERIALS ALLOWED, CONTACT e
THE BUILDING DEPARTMENT.
Patio covers may be attached or detached. and are permitted only as accessory to single-family dwellings or to indi-
vidual dwelling units in multi-dwelling unit buildings.
LOCATION: When a patio cover is located within 3' of a property line, the patio cover shall have an area separation
wall (i.e. stucco) on the property line side; such wall shall extend to the roof sheathing. No openings are allowed
on the side facing the property line.
CONCRETE: Concrete shall consist of 1 pirt cement. 3 parts sand. and 4 parts gravel, volumetric measure. with not
more than 7~ gallons of water per sack of cement.
LUMBER: Shall be Douglas Fir/Larch No. 2 or better. ALL LUMBER SHALL BE GRADE STAMPED.
POST ANCHORAGE AND BRACING: Posts shall be anchored at the lower end by any of the methods noted. They sha 11 be
braced at the upper end using any of the optional methods shown. Decorative type bracing may be substituted for the
above if the same amount of structur.l br.cing is rellized.
FOOT! NGS : When the load on supporting posts does not exceed 750 pounds per post, a minimum ~" thick slab on grade may
be substituted for the pad footings shown on the typical framing details. Post anchorage to slabs must be the same as
to footings.
BEAM TO HOUSE ATTACHMENT: When it is desired to connect and support one side of the structure by attaching it directly
to the house. the rafter spins and main beam sizes will remain as shown in the table. However, the main beam may be
replaced on the side attached to the house with a ledger the same size as the rafters and fastened to the studs with
;" x 5" lag screws spaced at 32" center to center. Lag screws may be spaced at 4B" center to center when the rafter
span does not exceed 10'. If a ledger is not used, it is recommended that the patio cover rafters be placed directly
on the top wall plate of the house. The rafters may be attached to the existing facia provided the facia is first
provided with a positive connection to the house roof rafters. One method of providing this connection is shown below.
ROOF COVERING: If covered with nominal one-inch sheathing, the roof shall have rafters spaced not more than 32" center
to center. Plastic roof coyerings, when used, shall be installed according to the manufacturer's recommendations. The
minimum roof slope shill be 1¡" in on. foot. The typical framing details and span tables are not applicable to roofs
exceeding 7 psf. Such roofs (i... tile) must be designed to withstand the additional dead load.
1_- L All nails a other metal
connlctors to be ..
.- lIght w.igM cO't.rint _u corrosion resistant , "
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it ~. ~ ",,"'~r:-'" 18 I 16 mesh Ins.et ·1 ·
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i» roof supports . , f!4;j....r .cro.nin~ 0' < c
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illY? rlmo'tab.' plastic .. E ..
/ ..t,nd to cone. I · .;¡ c
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foundation S 6~ e¡. of .och of two sid. op.n · E ~
bllow "-811 or 30" max. wall I 0 . ·
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nonb'orino wall only E
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b,twlln roof SUpportl - IØ I ". min lloø.
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2"1 8" plotl -
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3/8)1, 4· 1001 - 2' o.c. for 'ov.s ov.r 18·
... 'f 8"
~/ 3/8 II: 4 1091 - 40.c or eo 'lei I or tUI
~~.. dWlllino roof
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grout cIIII lolid dw.Uing wall
under po.
optional ALTERNATE ROOF CONNECTION
block wall