HomeMy WebLinkAbout10096 ORD - 02/10/1971Y
AN ORDINANCE
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF CORPUS CHRISTI, TEXAS:
a
16096
AMENDING SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE, 1958,
AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE NOS. 9915
9975, PASSED AND APPROVED BY THE CITY COUNCIL ON SEPTEMBER
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1AND
9, 1970 AND OCTOBER 23, 1970, RESPECTIVELY, BY AMENDING THE
SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, WITH 1970 REVISION,
'
AND THE TABLE AND APPENDICES THERETO, BY AMENDING SECTION 101 OF
'+ CHAPTER I BY ADDING THERETO A SUBSECTION NU•IEERED 101.6 RELATING
TO HURRICANE PRECAUTIONS; AMENDING SUBSECTION 103.4 OF CHAPTER
SO AS TO INCLUDE UNDER UNSAFE BUILDINGS A STRUCTURE OR BU14DING
THAT WOULD CONSTITUTE WINDSTORM HAZARD; AMENDING SECTION 105 OF
CHAPTER 1 SO AS TO ACD TO SUBSECTION 105.3 A NEW SUBPARAGRAPH,
PLACING TOTAL BUILDING DESIGN RESPONSIBILITY ON THE DESIGN
ARCHITECT OR THE DESIGN ENGINEER; ADDING TO SECTION 108 OF
CHAPTER I A NEW SUBSECTION, 104.3, PROVIDING FOR SPECIAL HURRICANE
INSPECTIONS; ADDING TO CHAPTER VIII, SUBSECTION 402.1 -B, SUBPARA-
GRAPH (A) SETTING FORTH REQUIREMENTS AS TO DESIGN, ANCHORING AND
SUPPORT WITH SPECIAL ATTENTION TO WIND REQUIREMENTS, AND RENUMBER -
ING THE PRESENT SUBPARAGRAPHS (A) THROUGH (r) ACCORDINGLY; ADDING
TO SECTION 120 OF CHAPTER XII AN-ITEM TO FOLLOW PRESENT SUBSEC-
TION 1203.1 (A, PROVIDING FOR DESIGNS OF CANTILEVERED PROJECTIONS;
AMENDING THE TABLE UNDER SUBSECTION 1205.1 OF CHAPTER XII SO AS
TO INCREASE THE DESIGN PRESSURE, FOR SOUTHERN COASTAL REGION, OF
k BUILDINGS OR STRUCTURES UNDER 30 FEET, UP FRCM 25 TO 30 POUNDS
PER SQUARE FOOT HORIZONTAL LOAD, AND OF BUILDINGS 31 TO 50 FEET,
UP FROM 35 TO 40 POUNDS PER SQUARE FOOT HORIZONTAL LOAD; AMENDING
SUBSECTION 1205.5 (A) OF CHAPTER XII BY DELETING THE FIRST ' .
SENTENCE AND IN LIEU THEREOF ADDING A NEW SENTENCE PROVIDING
FOR SIGNS TO CONFORM TO WIND DESIGN PRESSURE LOADS STATED AND LISTED;
AMENDING PARAGRAPH (A) OF SUBSECTION 1446.1 OF CHAPTER XIV TO PROVIDE
THAT PARAPET WALLS SHALL BE DESIGNED TO WITHSTAND ALL.APPLICABLE
LOADING AS SPECIFIED IN THE CODE; ADDING TO CHAPTER XVI OF THE
SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, SECTION 1601,
REGULATION OF PRE -CAST CONCRETE; ADDING TO - 'JAPTER XVII OF THE
SOUTHERN STA1!.„R`- ti•.R, BUILDING CODE, 1 °69 EDITION, ADDITIONAL
WOOD- LU4I8ER REGULATIONS IN SUBSECTION 1700.3 (A); ADDING TO
CHAPTER XVII OF THE SOUTHERN STANDARD BUILDING CODE, 1969
EDITION, IN SECTION 1706, IN A NEW SUBSECTION (o), ADDITIONAL
RAFTER, JOIST, PLATE AND STUD ANCHORAGE REQUIREMENTS; ADDING
TO CHAPTER XXV OF THE SOUTHERN STANDARD BUILDING CODE, 1969
EDITIOIq, A NEW SECTION, NO. 2506, PERTAINING TO MOBILE HOME AND
TRAVEL TRAILER STANDARDS, AND ADDING TO THE AFORESAID APPENDICES
A NEW APPENDIX I; DELETING THE PRESENT SUBSECTION 1707.9 OF
'
CHAPTER XV11 AND IN LIEU THEREOF ADOPTING A NEW SUBSECTION
1707.9 PERTAINING TO ROOF COVERINGS, MATERIALS, SPECIFICATIONS '
AND CONSTRUCTION; PROVIDING FOR FILING OF THIS ORDINANCE IN
THE OFFICE OF THE CITY SECRETARY AS A PART OF AND THE OFFICIAL;
AUTHENTICATED AF:c:Gi - ".E1T OF THE SAID CITY - SOUTHER; STANDARD
BUILDING COZE FCR ALL PUR =CSES; REPE,�Ll%] ALL ORDINANCES It!
CONFLICT HEREWITH; PROVIDING FOR SEVERANCE; AND PROVIDING FOR
PUBLICATION.
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF CORPUS CHRISTI, TEXAS:
a
16096
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1
SECTION 1. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 AND
9975, BE AND THE SAME IS HEREBY AMENDED BY AMENDING SECTION 101 OF
CHAPTER I OF THE SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, BY
ADDING A SUBSECTION, TO BE DESIGNATED AS 101.61 READING AS FOLLOWS:
"101.6 HURRICANE PRECAUTIONS: DURING SUCH PERIODS OF TIME
AS ARE DESIGNATED BY THE UNITED STATES WEATHER CENTER AS
BEING A HURRICANE WARNING OR ALERT, THE OWNER, OCCUPANT
OR USER OF A PROPERTY SHALL TAKE PRECAUTION FOR THE SECUR-
ING OF BUILDINGS AND EQUIPMENT. CANVAS. AWNINGS AND SWING
SIGNS SHALL BE LASHED TO RIGID CONSTRUCTION, TENTS SHALL BE
TAKEN DOWN AND STORED OR LASHED TO THE GROUND, AND SUCH OTHER
PRECAUTIONS SHALL BE TAKEN FOR THE SECURING OF BUILDINGS OR
STRUCTURES OR MATERIAL OR EQUIPMENT AS MAY BE REASONABLY
REQUIRED."
SECTION 2. THAT SECTION 11-5 OF•THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 AND
99751 BE AND THE SAME IS HEREBY AMENDED BY ADDING TO SUBSECTION 103.4
OF CHAPTER I OF THE SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, THE
SECOND LINE THEREOF, THE WORDS "OR WINDSTORM" BETWEEN THE WORDS "FIRE"
AND "HAZARD ", THE SAID SECOND LINE TO HEREAFTER READ: "NOT PROVIDED WITH
ADEQUATE EGRESS, OR WHICH CONSTITUTE A FIRE OR WINDSTORM HAZARD."
SECTION 3. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
19581 AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE NOS. 9915 AND
9975, BE AND THE SAME IS HEREBY AMENDED BY ADDING TO SUBSECTION 105.3 OF
CHAPTER I OF THE SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, A SUB-
PARAGRAPH (0), READING AS FOLLOWS:
• "105.3(D) IN ALL BUILDINGS REQUIRING THE DESIGNER TO BE AN
ARCHITECT OR AN ENGINEER AS SET FORTH IN PARAGRAPH
105.3(0) ABOVE, SAID ARCHITECT OR ENGINEER SHALL
ASSUME TOTAL BUILDING DESIGN RESPONSIBILITY."
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SECTION 11. THAT SECTION'11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE NOS. 9915 AND
9975, BE AND THE SAME IS HEREBY AMENDED BY ADDING TO SECTION 1O8 OF CHAPTER
I OF THE SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, A NEW SUBSECTION,
ENTITLED 108.3, READING AS FOLLOWS:
"108.3 SPECIAL HURRICANE INSPECTION'S.
(A) DURING SUCH PERIODS OF TIME AS ARE DESIGNATED BY THE UNITED
STATES WEATHER CENTER AS BEING A HURRICANE WARNING OR ALERT, ALL FURNITURE,
DISPLAY RACKS, MATERIAL AND SIMILAR. LOOSE OBJECTS IN EXPOSED OUTDOOR
LOCATIONS, SHALL BE LASHED TO RIGID CONSTRUCTION OR STORED IN BUILDINGS.
ORDERS SHALL BE ORAL OR WRITTEN AND SHALL BE GIVEN TO THE PERSON ON THE
PREMISES RESPONSIBLE FOR THE CUSTODY, OR MANAGEMENT OR CARE OR MAINTENANCE
OF SAID PREMISES, OR HIS EMPLOYEE OR AGENT, AND SUCH ORDERS SHALL BE
CARRIED OUT BEFORE WINDS OF HURRICANE VELOCITY ARE ANTICIPATED.
(B) AFTER WINDS OF HURRICANE VELOCITY ARE EXPERIENCED AND
HAVE SUBSIDED, THE BUILDING OFFICIAL SHALL INVESTIGATE TO DETERMINE IF ANY
DAMAGE HAS•OCCURRED TO BUILDINGS OR OTHER STRUCTURES.
(C) NO BUILDING OR OTHER STRUCTURE OR ASSEMBLY OR PART THEREOF
WHICH 15 STRUCTURALLY UNSAFE FOR HUMAN OCCUPANCY, OR DANGEROUS TO ADJACENT
PREMISES, BUILDINGS, STRUCTURES, ASSEMBLIES, OR PARTS THEREOF, OR COLLAPSED
SHALL BE REPAIRED OR ALTERED OR OTHERWISE RETURNED TO ITS ORIGINAL POSITION
WITHOUT INSPECTION AND APPROVAL BY THE BUILDING OFFICIAL."
SECTION �. THAT SECTION 11 =5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 AND
9975, BE AND THE SAME IS HEREBY AMENDED BY ADDING TO CHAPTER VIII, SUB-
SECTION 802.1 —B OF THE SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, .A
SUBPARAGRAPH TO BE NUMBERED (A), READING AS FOLLOWS:
"(A) CHIMNEYS SHALL BE DESIGNED, ANCHORED, AND SUPPORTED AS
SET FORTH HEREIN AND TO CONFORM TO REQUIREMENTS OF CHAPTERS 12,
A, 15, 16, 17 WITH SPECIAL ATTENTION TO WIND REQUIREMENTS."
THE PRESENT SUBPARAGRAPHS (A) THROUGH (F) SHALL BE RENUMBERED ACCORDINGLY.
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SECTION 6. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 AND
9975, BE AND THE SAME IS HEREBY AMENDED BY ADDING TO SECTION 1203 OF
CHAPTER XII, SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, THE FOLLOWING
7TEM.FOLLOWING PARAGRAPH 1203.1:
"OTHER: CANTILEVERED PROJECTIONS, INCLUDING BUT NOT LIMITED TO
EXTERIOR BALCONIES, ON THE EXTERIOR OF BUILDINGS SHALL BE DESIGNED FOR NOT
LESS THAN 60 POUNDS PER SQUARE FOOT LIVE LOAD OR 200 POUNDS PER LINEAR FOOT
LIVE LOAD APPLIED AT THE OUTER EDGE."
SECTION 7. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 AND
9975, BE AND THE SAME IS HEREBY AMENDED BY AMENDING THE TABLE UNDER
SECTION 1205.1- MINIMUM DESIGN LOADS OF CHAPTER XII OF THE SOUTHERN STANDARD
BUILDING CODE, 1969 EDITION, SO AS TO INCREASE THE DESIGN PRESSURE AS FOLLOWS:
"HEIGHT ZONE LB./SD. FT.
.FT. HORIZONTAL LOADS
FOR SOUTHERN FOR SOUTHERN
INLAND REGIONS COASTAL REGION*
LESS THAN 30 ... . . . . . . . . 10 30
31 To 50. . . . . . . . . ... 20 4o "
EXCEPT AS EXPRESSLY HEREINABOVE CHANGED HEREBY, THE REMAINDER OF THE PROVI-
SIONS IN THE TABLE SHALL REMAIN IN FULL FORCE AND EFFECT.
SECTION 8. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 Am
99751 BE AND THE SANE IS HEREBY AMENDED BY DELETING THE FIRST ' SENTENCE':
OF PARAGRAPH 1205.5(A) OF CHAPTER XII, BEING IN 1205.5 - SIGNS, OF THE SOUTHERN
STANDARD BUILDING CODE, 1969 EDITION, AND IN LIEU THEREOF, INSERTING THE
FOLLOWING SENTENCE:
"ALL SIGNS SHALL CONFORM TO THE WIND DESIGN PRESSURE
LOADS LISTED IN 1205.1 AND AS AMENDED AND ALL ORDINARY
SOLID SIGNS ERECTED ON GROUND LEVEL SHALL BE CAPABLE
OF WITHSTANDING A LOAD OF THIRTY (30) POUNDS PER SQUARE
FOOT FOR HEIGHT ZONE OT LESS THAN 30 FEET."
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SECTION '9. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE NOS. 9915 AND
99751 BE AND THE SAME IS HEREBY AMENDED BY AMENDING SUBPARAGRAPH (A) OF
.SUBSECTION 1406.1 OF CHAPTER XIV OF THE SOUTHERN STANDARD BUILDING CODE,
1969 EDITION, SAID SUBPARAGRAPH (A) TO HEREAFTER READ AS FOLLOWS:
"(A) PARAPET WALLS MAY BE OF PLAIN SOLID MASONRY, HOLLOW
MASONRY UNITS, CAVITY WALL DESIGN OR REINFORCED MASONRY AS
PROVIDED IN THIS SECTION AND SHALL BE DESIGNED TO WITHSTAND
ALL APPLICABLE LOADING, INCLUDING BUT NOT LIMITED TO WIND
LOAOS, AS SPECIFIED IN THIS CODE."
SECTION 10. THAT SECTION 11-5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE NOS. 9915 AND
99751 BE AND THE SAME IS HEREBY AMENDED BY ADDING TO SECTION 1601 OF
CHAPTER XVI OF THE SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, THE WORDS
AND PRE -CAST CONCRETE" AFTER THE WORDS "PRESTRESSED CONCRETE ", SAID
SECTION 1601 TO HEREAFTER READ AS FOLLOWS:
"1601 - GENERAL.
ALL STRUCTURES OF REINFORCED CONCRETE, INCLUDING PRESTRESSED
CONCRETE AND PRE -CAST CONCRETE, SHALL BE DESIGNED AND CONSTRUCTED IN
ACCORDANCE WITH THE PROVISIONS OF 'BUILDING CODE REQUIREMENTS FOR REINFORCED
CONCRETE,' ACI 318 -63."
SECTION 11• THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 AND
9975., BE AND THE SAME IS HEREBY AMENDED BY ADDING TO SUBSECTION 1700.3(A)
OF SECTION 1700 OF CHAPTER XVII OF THE SOUTHERN STANDARD BUILDING CODE,
1969 EDITION, THE FOLLOWING SENTENCES:
"ALL LUMBER USED FOR JOISTS, RAFTERS, STRINGERS, AND/OR BEAMS
SHALL BE OF A STRESS GRADE NOT LESS THAN 1200 P.S.I. EXTREME FIBRE STRESS
IN BENDING AND PARALLEL TO THE GRAIN. .
"THE BUILDING OFFICIAL SHALL REQUIRE THE SPECIES AND GRADE OF
ALL WOOD USED FOR LOAD - BEARING PURPOSES, THE DESIGN OF WHICH IS BASED ON
STRESSES IN EXCESS OF 1200 P.S.I. STRESS•GRADE LUMBER, TO BE SHOWN ON THE
PLANS SUBMITTED WITH APPLICATIONS FOR BUILDING PERMITS."
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SECTION 12. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE NOS. 9915 AND
9975, BE AND THE SAME IS HEREBY A:•:E:JDED EY ADDI..G TO SECTION 1705 OF
CHAPTER XVII, OF THE SOUTHERN STANDARD BUILDING CODE, 1969 EDITION, THE
FOLLOWING PARAGRAPH:
"f D\ CONTINUOUS ANCHORING: METAL STRAP ANCHORS, OR OTHER
APPROVED AN`CHIORING DEVICES DESIGNED TO RESIST HURRICANE UPLIFT AN6 OVER-
TURNING LOADS, SHALL BE USED TO SECURE RAFTERS OR JOISTS TO TOP PLATES
AND TOP AND BOTTOM PLATES TO STUDS IN ORDER TO ACHIEVE A POSITIVE CON-
TINUOUS ANCHORAGE FROM ROOF STRUCTURE TO THE FOUNDATION; ANCHORAGE SHALL
BE AT A SPACING OF 118" ON CENTER OR AT EVERY THIRD STUD, WHICHEVER IS THE
LESSER.IN DISTANCE.`
SECTION 13. THAT SECTION 11 -5 OF THE CORPUS CHRISTI CITY CODE,
1958, AS AMENDED, AND PARTICULARLY AS AMENDED BY ORDINANCE Nos. 9915 AND
9975, BE AND THE SAME IS HEREBY AMENDED BY ADDING TO CHAPTER XXV OF THE
SOUTHERN BUILDING CODE, 1969 EDITION, A NEW SECTION, TO BE DESIGNATED AS
SECTION 25o6, READING AS FOLLOWS: .
"SECTION 2506 - MOBILE HOMES
SEE NEW APPENDIX I FOR MOBILE HOME STANDARDS."
APPENDIX I - MOBILE HOMES STANDARDS SHALL READ AS FOLLOWS:
"APPENDIX I
MOBILE HOMES STANDARDS
- 1. PURPOSE, APPLICATION AND 'SCOPE
(A) THE REQUIREMENTS SET FORTH IN THIS APPENDIX SHALL APPLY
SPECIFICALLY TO ALL NEW MOBILE HOMES, AND SHALL PROVIDE MINIMUM STANDARDS
FOR CONSTRUCTION OF MOBILE HOMES; PROVIDED, HOWEVER, MOBILE HOMES AS
HEREIN DEFINED INSTALLED UPON OR CONNECTED TO UTILITIES ON LAND WITHIN THE
CORPORATE LIMITS AND APPROVED FOR OCCUPANCY BY THE CITY AS OF THE EFFECTIVE
DATE OF THIS ORDINANCE SHALL BE REQUIRED TO COMPLY ONLY WITH THE PROVISIONS,
AS TO THIS APPENDIX, OF I -6, SUBSECTIONS 1T 'HROUGH 5.*
1 -2. GENERAL
j.
MOBILE HOMES SHALL COMPLY WITH THE STANDARD FOR MOBILE HOMES,
USAS OR ANSI STANDARDS A119.1,:1969 AND THE AMENDMENTS HEREIN.
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I - 3. STRUCTURAL DESIGN
ALL MOBILE HOMES SHALL BE DESIGNED TO MEET LOADING CONDITIONS AS
SPECIFIED IN PART 1 OF USAS OR ANSI STANDARDS A119.1. UNITS NOT FACTORY -BUILT
AND ASSEMBLED MUST MEET THE SOUTHERN BUILDING CODE REQUIREMENTS FOR SMALL
STRUCTURES AND AS SPECIFIED AND APPLICABLE ELSEWHERE IN THIS CODE.
I - 4. DEFINITIONS
MOBILE HOME - A VEHICULAR, PORTABLE STRUCTURE BUILT ON A CHASSIS
AND DESIGNED TO BE USED WITHOUT A PERMANENT FOUNDATION AS A DWELLING FOR
YEAR -ROUND LIVING WHEN CONNECTED TO INDICATED UTILITIES (PER ANSI STANDARDS
A110.1). IT MAY CONSIST OF ONE OR MORE UNITS THAT CAN BE.TELESCOPED WHEN
TOWED AND EXPANDED LATER FOR ADDITIONAL CAPACITY, OR OF TWO OR MORE-UNITS,
SEPARATELY TOWABLE BUT DESIGNED TO BE JOINED INTO ONE INTEGRAL UNIT.
I - 5. IDENTIFICATION
A MOBILE HOME UNIT MAY BEAR THE LABEL Oft SEAL OF COMPLIANCE WITH
'THE STANDARD FOR MOBILE HOMES A119.1, OF A RECOGNIZED INDEPENDENT, ENGINEER-
ING TESTING LABORATORY AND/OR AGENCY HAVING FOLLOW -UP INSPECTION SERVICES,
OR A SEAL OF CERTIFICATION BY THE BUREAU OF LABOR STATISTICS ISSUED PURSUANT
TO THE UNIFORM STANDARDS CODE FOR MOBILE HOMES, CHAPTER 656 (s.B. 153) 61ST
LEGISLATURE OF TEXAS - REGULAR SESSION. SUCH LABEL OR SEAL SHALL BE
DEEMED TO BE IN FULL COMPLIANCE WITH THE STANDARDS FOR MOBILE HOMES
PRESCRIBED BY THE SOUTHERN BUILDING CODE CONGRESS WITHIN THE GOVERNMENTAL
JURISDICTION WHICH HAS APPROVED SUCH INDEPENDENT RECOGNIZED TESTING
LABORATORY FOR THIS SERVICE. '
ALL MOBILE HOME UNITS BEARING SUCH LABEL OR SEAL SHALL BE ACCEPTABLE
WITHIN SUCH CITY, COUNTY, AND STATE JURISDICTION, WHICH HAS APPROVED SUCH
LABELING SERVICE.
ANY MOBILE HOME UNIT NOT BEARING SUCH LABEL OR SEAL OF INDEPENDENT
TESTING LABORATORY APPROVED BY THE GOVERNMENTAL JURISDICTION WHEREIN THE
UNIT IS TO BE ERECTED IS SUBJECT TO INSPECTION AND APPROVAL REQUIREMENT IN
THE SAME MANNER AS OTHER STRUCTURES SUBJECT TO THIS CODE.
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ALL MOBILE HOMES SHALL BE ANCHORED AND TIED DOWN IN A MANNER EQUIVA-
LENT TO OR BETTER THAN THE FOLLOWING ON OR BEFORE JUNE li. 197'Iy AS FOLLOWS:
I — 6. ANCHORAGE - MINIMUM HURRICANE TIE —DOWN REQUIREMENTS
APPROVED BLOCKING AND ANCHORAGE IS ILLUSTRATED IN
THIS APPENDIX)
1. NUMBER OF TIES
A. UP TO 301 MOBILE HOME LENGTH — 2 FRAME TIES PER SIDE
B. 30' TO 50' MOBILE HOME LENGTH — 3 FRAME TIES PER SIDE
C. 50' TO 70' MOBILE HOME LENGTH — 4 FRAME TIES PER SIDE
D. OVER 70! MOBILE HOME LENGTH — 5 FRAME TIES PER SIDE
E. PLUS — OVER— THE —HOME TIES AS CLOSE TO EACH END AS POSSIBLE WITH
STRAPS AT STUD AND RAFTER LOCATION.
2. ANCHORS
SOIL TEST TO ASSURE THAT FOLLOWING WILL WITHSTAND 3750 LBS. OF PULL
PER 10' OF MOBILE HOME.
A. AUGER OR DEAD MAN, 611 IN DIAMETER — ARROWHEAD 811
B. AUGER OR ARROWHEAD DEPTH 41 — DEAD MAN 5'. ALL AUGERS MUST BE SCREWED
INTO THE EARTH THE FULL FOUR —FOOT DEPTH.
C. ANCHOR ROD 5/8" DIAMETER WITH WELDED EYE AT TOP. MUST BE HOOKED
INTO CONCRETE WHEN USED IN DEAD MAN ANCHORS.
D. ANCHORS TO SLABS MUST EQUAL ABOVE IN PULL RESISTANCE.
3. CONNECTORS
A. GALVANIZED OR STAINLESS STEEL
�� CABLE — 3/8" (7 X 7 — 7 WIRES EACH), OR
B. GALVANIZED AIRCRAFT CABLE 1 /`+" (7 X 19 — 7 STRANDS OF 19 WIRES EACH) OR
C. STEEL STRAP — 1 -1/4" X .035^ — GALVANIZED, WITH TENSIONING DEVICE.
D. CABLE ENDS SECURED BY 2 U —BOLT CLAMPS.
E. STEEL RODS — 5/8° WITH ENDS WELDED CLOSED TO FORM AN EYE.
F. TURNBUCKLE 5/8° DROP FORGED — CLOSED EYES. OTHER TENSIONING.
DEVICES OF SIMILAR STRENGTH APPROVED.
4. PIERS AND FOOTINGS
A. SPACED AT 10' INTERVALS ON BOTH FRAME RAILS WITH END ONES NO
FURTHER THAN 5' FROM END OF MOBILE HOME.
B. FOOTINGS OF SOLID CONCRETE 16" X 16° X 4" , OR
C. PIERS OF STANDARD 8" X 8„ X 16° SOLID CONCRETE BLOCK.
_ CiFc' •' w,A''_�, ,
D. WOOD BLOCKS USED FOR LEVELING SHALL NOT EXCEED A MAXIMUM THICKNESS
N
OF FOUR (Ri,1 INCHES. SUCH BLOCKS MUST BE OF NOMINAL S" X 16"
DIMENSIONS./ '
E. OTHER EQUIVALENT PIERS ACCEPTED. AN ADJUSTABLE SCREW- ANCHOR -TYPE
COLUMN FASTENED TO BOTH FRAME RAIL AND TO A CONCRETE PAD OF 4"
THICKNESS EXTENDING THE LENGTH AND WIDTH OF THE MOBILE HOME IS
ESPECIALLY RECOMMENDED.
5. PATIO AWNINGS AND CABANA ROOFS
A. TWO ROWS OF VERTICAL SUPPORT BARS - SPACING 121. SECOND ROW TO
BE DOWN MIDDLE OR AT MOBILE HOME EDGE, ANCHORED TO CONCRETE FLOOR
OR EQUIVALENT FOOTINGS.
B. OTHER STRUCTURES ON LOT MUST BE SECURED*
C. TIP -OUT ROOMS TO BE HELD BY OVER- THE -HOME TIE AT OUTER EDGE,
D. CLERESTORY ROOF REQUIRES OVER - THE -HOME TIE AT END OF EACH RAISED
SECTION.11 _
6. TRAVEL TRAILERS (LOCAL RULE)
TRAVEL TRAILERS TO BE LEFT, OR LEFT, AT PARKING SITE DURING
'UNITED STATES WEATHER CENTER HURRICANE WARNING OR ALERT PERIODS ,
SHALL BE LASHED TO RIGID CONSTRUCTION AND LASHED TO THE GROUNDS OR
STORED SECURELY IN PERMANENT BUILDINGS, CONFORMABLE AS PRACTICABLE
TO THE TERMS AND CONDITIONS OF SECTIONS l0l.6 AND 108.3 OF THIS
CODE. A "TRAVEL TRAILER II IS A VEHICULAR PORTABLE STRUCTURE
BUILT ON A CHASSIS AND DESIGNED TO BE USED WITHOUT A PERMANENT
FOUNDATION AS A DWELLING, PRIMARILY AND INDEPENDENTLY OF UTILITY
CONNECTIONS AT THE PARKING SITE.
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Cable - Min. diam. galv. steel cable - 3/811 (.7 x 7 )
Min. diam. galv. "Aircraft" cable mm- 1/411 ( 7 x 19 )
L-2 cable clamps
required
C
Thimble
recommended
Drop forged
closed eye
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APPROVED
Minimum
Recommended blocking
(— diameter 5/8"
Use steel or wood blocks
Drop
to distribute pressure,
J
forged
E– turnbuckle
Minimum
diameter 5/811
/
a
v
Jaw \Y:/
t=
OAuger
type
0
f-- -2 -beam frame
anchor
Wood shims
Top of anchor
{�
A
1IIU��i�l
,--Solid concrete
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blocks
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rin
1 Ya� �l IS�h►Rn nit u 1 u 1 1��I I
(-.Footer - 16" x 1611
x 4"
APPROVED
Approved blocking
SECTION 14. That Section 11 -5 of the Corpus Christi City Code,
1958, as amended, and particularly as amended by Ordinance Nos. 9915 and 9975,
be and the same is hereby amended by deleting Sub - Section 1707.9 of Chapter XVII
of the Southern Standard Building Code, 1969 Edition, and in lieu thereof
adopting a new Sub - Section 1707.9, reading as follows:
"1707.9 - ROOF COVERINGS
170,7.9(a) General
PERMITS: (a) A permit shall be required for the erection, construction,
fabrication, application, or repair of any roof covering as set forth in fkis -.--
-CODE'.
INSPECTIONS: (a) The Building Official, upon notification from the
permit holder, shall make a roofing inspection and shall either approve that portion
of the work completed or order correction for compliance.
(b) On new roof construction, where the sheathing is exposed from below
and for architectural appearance, the roofing nails are not driven through the
sheathing, the permit holder shall notify the Building Official eight hours before
the time that tin capping will be nearly completed, so that inspection may be made
before the roof is mopped or covered.
(c) On replacement of roof coverings on existing buildings, the permit
holder shall notify the Building Official eight hours before the time that tin
capping will be nearly completed, so that inspection may be made before the roof is
mopped or covered.
(d) On tile roofs, in addition to other inspections, the permit holder
shall notify the Building Official eight hours before the time that tile laying will
be nearly completed, so that inspection may be made during the process of laying
-the tile.
"1707.9(b) - FIRE- RETARDANT ROOF COVERINGS REQUIRED:
(a) Roof coverings for all buildings of Type I or Type II construction
and all buildings of other than Group A occupancy shall be fire - retardant. A fire -
retardant roof covering shall be any roof or any roof covering which meets the re-
quirements of any one of the following or shall be any roof assembly bearing the
label of the Underwriters` Laboratories, Inc., for Class A or B roofing. For except-
ion, see Sub - Section 706.6.
(1) Any built -up composition roofing consisting of materials whose
fire - retardant values as set forth in Table 1707.9 equal not less than 15 points
including a top covering selected from parts (b), (c), and (d) of said Table.
(2) Hydraulic compressed rigid shingles not less than one eighth inch
thick, composed of Portland cement and asbestos fibres, laid over a layer of
saturated felt weighing not less than 30 pounds to 100 square feet, or hydraulic
compressed rigid sheets not less than seven thirty- seconds -inch thick.
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(3) Asphalt- saturated mineral- surfaced prepared composition shingles
laid so there are mt less than two thicknesses at any point. The combined weight
of such shingles shall be not less than 200 pounds to 100 square feet.
(4) Concrete slab constructed as specified in Chapter 25 without ad-
ditional roof covering.
(5) Steel roof covering.
(6) Aluminum roof covering.
(7) Concrete or clay roof tile.
(8) Glass fibred felts may be substituted for the inorganic felts
set forth in Table 1707.9 subject to ruling of acceptability by the Building Official
of the results of tests on such glass fibre felts, based upon guidelines of equivalence
to be disclosed by the Building Official to the permittee upon request.
(b) Fire - retardant roofs shall comply with all other requirements of
this Chapter.
TABLE 34 -A —FIRE- RETARDANT VALUES OF ROOFING MATERIALS
•
Mincral- Surfaced Split Sheets (minimum 2 layers)—
Min. WL
Per 100
Fire
8111PPING
Sq. Ft. of
Roof Area
Retardant
Value
WEIGHT
(Pounds)
TYPES OF MATERIALS
(Pound.)
68
• ( ■) Base Sheet. 16
Asphalt- Saturated Felt
14
3
30
Asphalt - Saturated Felt _._._.__.._
28
6
' 20
Asphalt - Saturated and Coated Dampcourse._.._
18
4
40
Asphalt- Smooth Surfaced Roofing
37
6
16
Asphalt - Saturated Asbestos Felt _.
14
6
20
Asphalt - Saturated Asbestos Felt
18
6
(h) Bare or Cep Shasta 46 .
Asphalt - Saturated Asbestos Felt (Black Top)
41
9
66
Asphalt- Saturated Asbestos Felt (Black Top).__—
60
10
16
Asphalt - Saturated Asbestos Felt (minimum 2 layers)_ 28
10
(e) Cap Shoats Only 66
Mincral- Surfaced Split Sheets (minimum 2 layers)—
106
12
90
Mineral- Surfaced Asphalt Cap Sheet____......__
83
10
_
76
Smooth - Surfaced Cap Sheet ._.__._ ._..-
68
9
66
Smooth - Surfaced Cap Sheet._
60
1
66
Smooth - Surfaced Cap Sheet
60
6
39
Asphalt - Saturated Asbestos Roofing (White top)_.-
37
9
66
Asphalt - Saturated Asbeslus Roofing (White top) — —
62
10
(d) Gravel and Tile
Gravel, 'A" to y" in site
400
0
Concrete or clay the _
Soo
4
"1707.9(c) - EXISTING ROOFS: (a) Not more than 25 percent of the roof
covering of any building or structure shall be replaced in any 12 -month period
unless the entire roof covering is made to conform to the requirements of this Code.
(b) Roofing felts, roll -slate roofing, asbestos- cement shingles and slate
or composition shingles shall not be applied over existing roofs where the roof sheath-
ing will not permit suitable grip for nailing, where old roofing is water - soaked or
deteriorated so that suitable bond for additional plies is not possible or where the
existing roof surface is of corrugated or standing -seam metal. Such additional
materials may be applied over existing roofs only when the following conditions are
satisfied:
(1) Where water blisters or air blisters exist in old roofing, blisters
shall be removed and remopped before applying additional roofing.
(2) Where the existing roofing surface is gravel, existing gravel shall
be completely removed before applying additional roofing.
(3) Where the existing roofing is on spaced sheathing, shingles shall be
removed and the roof shall be solid sheathed, with tongue -and- groove sheathing, and
fXller strips between spaced sheathing shall not be permitted.
(4) Under no circumstances shall roofing felts, roll -slate roofing or
shingles be applied over existing shingles or any other surfaces more uneven than
solid wood sheathing. Asphalt shingles or 90 -roll roofing may be applied over exist-
ing asphalt shingles having not more than one - eighthinch difference in pre- existing
roof surface level.
(c) Additional layers of roofing felt and other materials may be applied
over existing roofs as follows:
(1) Unless it can be shown, to the satisfaction of the Building Official,
that the existing roofing is sufficiently anchored within the guidelines of applicable
or related provisions of this Code, be tin - capped at 12 -inch centers before additional
layers of roofing are applied.
(2) If two or more layers of 15 -pound felt or 30 -pound felt are applied'
over an existing roof on a concrete gypsum or steel deck, all layers of additional
felt shall be solidly mopped to the existing roof.
_12-
(3) Tile shall not be applied over an existing roof where the added weight
may increase stresses in the supporting structure to be greater'than the allowable
stresses set forth in this Code.
"1707.9(d) - BUILT -UP FELTS AND GRAVEL
General: (a) ;Preparation of surface: Before starting the application
of all roofing membranes, all roof decks shall be broom - cleaned; parapet walls,
vertical walls, penthouses, and similar structures above the roof level shall have
been completed; and all flat roof decks shall have been provided with a cant -strip
where the roof deck joins a vertical surface. Cant - strips shall be of nailable material
and shall extend at least four inches up the vertical surfaces. Wood roof decks shall
be solidly sheathed. Concrete roof decks shall be smooth and free from liatance.
Portland cement roof decks shall be thoroughly dry. Gypsum decks shall be surface
dry, before starting application of roofing. All eave facias shall be completed before
starting application of roofing.
(b) Materials: Mineral- surfaced cap sheets, asphalt shingles, and smooth -
surface cap sheets shall bear the label of the Underwriters' Laboratories, Inc., for
Class A, B, or C roofing. All materials shall be delivered in original packages bear-
ing the manufacturer's label.
(c) Anchoring: Roofing felts,'sheets, plys and shingles shall be attached
to the roof deck by mopping or mechanical fastening as set forth herein. Attachment
to the deck shall provide resistance of not less than 80 pounds per fastener or fasten-
ing device.
(d) Nailing: (1) Nails securing roofing to nominal one -inch lumber or
to plywood 3/4 inch or more in thickness shall be untumbled hot - dipped galvanized wire
NAILS NOT SMALLER THAN IG GAUGE, NOT LESS THAN ONE k1J INCH IN LENGTH ADD WITH
HEADS NOT LESS THAN 3/8 INCH DIAMETER.
(2) Nails securing-roofing to plywood less than 3/4 inch in thickness shall
be 12 gauge wire ring - shanked nails having not less than 20 rings per inch and of not
less length than will penetrate the plywood plus 3/16 inch and with heads not less
than 3/8 inch diameter.
(3) Nails in gypsum concrete or other nailable concrete shall be hot - dipped
galvanized nails not less than one and 3/4 inches in length.
(4) Nails securing shingles over felts may substitute in quantity for the
number of nails required for the attachment of the felts.
(5) Nails securing felts shall be applied through tincaps not less
than 1 and 5/8 inch nor more than 2 inch diameter not less in thickness than 32 gauge
sheet metal.
(6) The spacing of nails along the lap of sheets and both ways in the
field between laps shall not exceed the following, based on height above grade:
HEIGHT ABOVE GRADE CENTER -TO- CENTER SPACING
0
to 20'
12"
20'
30,
11"
30'
50'
10"
50'
so,
9"
Over
80'
6"
-t3-
(7) Exception: Other mechanical methods or devices for attaching the
anchor sheet or sheets to the decking may be approved providing such fastenings
are spaced not to exceed 12 inches on centers and provided it can be demonstrated
that the attachment is capable of resisting not less than 80 pounds per fastener
or fastening device pull -out at the roof deck nor less than 88 pounds per fastener
or fastening device pull- through of the anchor sheet, with proportionate increase
for heights exceeding 20 feet above grade.
(8) Exception: Where the underside of sheathing is to be exposed
mechanical attachment shall be: (aa) 1 1/4 inch long, untumbled hot - dipped galvanized -
wire nails or 1 1/4 inch ring shanked nails 12 inches on center driven through tincaps
along the rafters and with ring - shanked nails that do not penetrate the sheathing
spaced as set forth in Sub - paragraph 1707.9(d) (d) (6) in the field between rafters,
or (bb) the rafters nailing may be omitted and ring - shanked nails that do not pen-
etrate the sheathing spaced to provide twice the number of nails set forth in Sub-
paragraph 1707.9(d) (d) (6).
(9) Where nailing or other mechanical fasteners are used the anchor sheet
shall be not less than one 30 -pound felt each sheet lapped 2 inches over the pre-
ceding sheet; or the attachment shall provide resistance to pull- through of the
anchor sheet as set forth in Sub - paragraph 1707.9(d) (d) (7).
(e) Mopping: (1) Each additional sheet above the anchor sheet shall be
thoroughly mopped between layers with a bituminous compound, or other approved
adhesive providing the attachment set forth in Paragraph 1707.9(d) (c), so that in
no place shall felt touch felt. Sheets shall be embedded without wrinkles or buckles.
On new work, each felt sheet above the anchor sheet may be perforated felt.
(2) Bituminous compounds shall be air - refined asphalt or coal tar pitch.
(3) Hot asphalt shall be applied in a quantity of not less than 20 pounds
per square per ply and 40 pounds per square for the flood coat and at a temperature
of not less than 350 nor more than 400 degrees Fahrenheit (425° to 475° in kettle).
(4) Coal tar pitch shall be applied in a quantity of not less than 25
pounds per square per ply and 50 pounds per square for the flood coat and at a
temperature of not less than 275 nor more than 350 degrees Fahrenheit (350° to 400°
in kettle).
(5) Adhesive compounds other than bitumen may be approved upon standards
promulgated by the Building Official within the guidelines of the applicable or related
provisions of this Code and shall be applied subject to the conditions of approval.
(f) Weight: Roofing felts, plys, adhesives and surface minerals and
materials shall be designated by the weight per 100 square feet, herein termed a square.
"1707.9(e) - WOOD, GYPSUM, AND OTHER NAILABLE DECKS:
(a) Over decks of gypsum or similar material attachment of the anchor
sheet shall be by nailing as set forth in Paragraph 1707.9(d) (d) or by strip - mopping
as set forth in Sub- Section 1707.9(f) and may be required to be demonstrated to pro-
vide the attachment set forth in Paragraph 1707.9(d) (c) and further provided that
only dead level asphalt or coal tar pitch shall be used as the bonding agent for
strip- mopping on gypsum.
(b) Each sheet shall be lapped 2 inches over the preceding sheet and
turned up vertical surface 4 inches.
(c) Sheathing paper shall be used on wood decks under tarred felts.
-14-
(d) Where the incline of the roof exceeds 2 inches per foot the only
bitumen cementing material used shall be steep asphalt or steep coal tar pitch.
((BITUMOUS = BITUMINOUS))
"1707.9(f) - PORTLAND CEMENT CONCRETE DECKS: (a) (1) Where felts are to
be anchored to Portland- cement concrete decks with bitumous compounds, the deck
shall be strip- mopped with continuous moppings of hot bitumous compound 2 feet
wide with one -foot spacing between strips. Felts over concrete shall be applied
lapping each sheet immediately behind the mop to insure a uniform coating of
bituminous compound.
(2) Where approved felts or other approved membranes are to be anchored
to Portland- cement concrete decks with approved adhesives other than bituminous
compounds, the material and method shall comply with the condition of approval
and shall provide anchorage not less than set forth in the standard in Paragraph
1707.9(d) (c) .
(b) Where four layers of 15 -pound felt are used, each sheet shall be
lapped 27 1/2 inches over the preceding sheet..
(c) Where the incline of the roof deck exceeds two inches per foot,
the only bit-ominous compound used shall be steep asphalt or steep coal tar pitch.
(d) Where the incline of the roof deck exceeds three inches per foot,
wood nailer strips, treated with an approved preservative, shall be cast in the
concrete.
111707.9(g) - GRAVEL OR SLAG SURFACING: Gravel or slag surfacing shall not
be used on inclines of more than four inches per foot and where used shall be
applied over base sheets as set forth in Sub - Section 1707.9(e) and 1707.9(f). A
flood coat of hot asphalt or pitch shall be uniformly applied into which, while
hot, shall be embedded not less than 400 pounds of gravel or 300 pounds of slag
per 100 squre feet and such gravel or slag shall authentically average approximately
one- fourth to five - eights - inches in size, dry and free from dirt.
"1707.9(h) - MINERAL SURFACED ROOFING: (a) Mineral surfaced roofing
shall be•applied over only the base felts set forth in Sub - Section 1707.9(e),
except that where the incline is one-half inch or less per foot mineral surfaced
roofing shall not be permitted. The edges of sheathing at eaves and gable ends
shall be covered and protected with non - corrosive metal as set forth in Section
1707.9(0) or with rolled -edges of the mineral surfaced roofing. Where used under
tile roofs or where incline exceeds 5 inches per foot, slate shall be back nailed
18 inches on centers. Mineral surfaced felts of glass or asbestos composition are
not limited to slope requirements.
(b) Mineral surfaced roof may be two layers of 55 -pound split sheet
roofing, each layer lapped 19 inches and fastened to the deck with two rows of
tincaps, spaced not more than eight inches staggered on center and nailed through
the unsurfaced portion of the sheet.
°1707.9(1) - MEMBRANE BASE FLASHINGS
1. Felt used in the construction of the built -up roof shall be carried
over the cant strips or turned up the wall. When the layers of felt are.carried
over the cant strips they shall be nailed every 12 inches along a line one and
one -half inches down from•the top edge of the cant strip.
2. Each layer of felt base flashing shall be uniformly mopped with hot
bitumzin or plastic cement and asphalt shall be steep asphalt, applied at the rate
of not less than 20 pounds per 100 square feet for each mopping.
3. There shall be not less than one 30 -pound felt starting at a point
one inch out from the cant strip and carried up the wall three inches plus one
mineral surfaced felt starting at a point two inches out from the cant strip and
carried up the wall five inches.
Roofing felts wrapping parapet walls shall be as follows: The built -up
roofing felts plus one 30 -pound felt shall start at a point two inches out from the
cant strip and shall be carried up the face and over the top of the parapet to the
center line, and nailed on 12 -inch centers, two inches from the top of the wall. _
The mineral surfaced felt shall step out two inches beyond the 30 -pound felt and be
carried up and over the wall to a point three inches from the outside edge of the
wall and be nailed on six -inch centers two inches from the top of the wall. The
top edge is then stripped with a three -inch wide strip of membrane set in plastic
cement and painted with aluminum paint.
EXCEPTION: Membrane base Flashing other than felt or adhesive, other than
bituminous compounds, may be used, provided the membrane and adherent is approved
under standards promulgated by the Building Official within the guidelines of the
applicable or related provisions of this Code and provided the attachment and applica-
tion complies with the conditions of approval.
"1707.9(1) - ROOF TILE
Roof tile shall not be applied to the surface of roofs having an incline
of less than two - and - one -half in 12.
1. MATERIAL: Tile shall be of Portland cement concrete or of clay of
various sizes and shapes, and shall be laid in accordance with manufacturer's direc-
tions where not conflicting with minimum building code requirements. In event of
conflict, the requirements of this Code shall apply.
2. QUALITY: (a) Portland cement concrete used for roof tile shall be of
not less strength than 2,000 pounds per square inch in 28 days. Except for an over-
lapping lip, tile shall have a minimum thickness of not less than one -half inch
for barrel tile and three - eights inch for shingle tile.
(b) Roof tile shall comply with the physical test requirements as
follows:
(1) Barrel tile shall be'test loaded by being supported on sand two
inches deep in a sand box four inches wider than the width of the tile. Shingle
tile and Spanish "S" tile shall be test loaded by being supported on sand - filled
cloth tubes parallel to the edge of the tile. Sand tubes shall be 10" long two -
inch diameter loosely filled with dry 40 -60 silica sand and shall be placed under
the edges of the tile with center -to- center distance equal to the laid width of
the tile.
(2) A test load shall be applied on a three -inch- square steel plate
bearing on a sand bag at the center of the tile.
(3) The breaking load of any individual shingle tile shall be not less
than 200 pounds and the average breaking load of five shingle tile shall be not
less than 250 pounds. The breaking load of any individual barrel tile shall be
not less than 250 pounds and the average breaking load of five barrel tile shall be
not less than 300 pounds.
3. ABSORPTION: Roof tiles shall absorb not more than 12 percent of the
dry weight of the tile during a 24 -hour immersion test.
4. MORTAR BED: (a) All tile shall be set in a bed of mortar and mortar
shall be sandwiched in between all laps at the butt of shingle, pan and barrel tile
and along the sides of barrel tile.
(b) Mortar of bedding roof tile shall be Type M or S.
-td-
5. LAYING: (a) Tile shall be laid on only mineral surfaced roofing
as set forth in Sub - section 1707.9(h) applied over one layer of 30 -pound felt as
set forth in Sub - section 1707.9(e). Mica surfaced roofing shall not be considered
acceptable to bond tile mortar.
(b) Tile shall be applied wet, having been thoroughly wet with a hose
and excess water allowed to drain off.
(c) Tile shall have a headlap of not less than two and one -half inches,
and, for barrel tile, not less than one and one -half inches lap at the sides.
(d) Tiles shall extend beyond the roof sheathing, at the eave, not less
than three- fourths inch nor more than two inches.
The tile used for any one roof shall be stacked on that roof for a period
of seven days before laying in setting bed.
6. NAILING: Where the incline of the roof is four in 12 or more but
less than seven in 12, the bottom three courses of tile and every fourth course
thereafter shall be nailed to the sheathing with non - corrosive nails; and where
the incline of the roof is seven in 12 or more, each tile shall be so nailed. In
addition to nailing, tile shall be laid in a mortar bed as specified in Sub- section
1707.9(j)4.
Where tile is laid on roofs having an incline of more than 3 inches in
12, the 90 pound slate shall be back - nailed except that such back- nailing will not
be required where all the tile are nailed.
7. RESISTANCE TO UPLIFT: ROOF TILE SHALL BE SECURED TO THE ROOF
SURFACE TO RESIST UPLIFT FORCES AS CALCULATED IN CHAPTER XII OF THE CODE.
. 8. WEEP HOLES: The eave ends of roof tile shall be cemented with weep
holes provided for adequate drainage, considering the area of roofing, authentically
averaged roof grade, the 10 year authentically averaged rainfall in the City per
U. S. Weather records, the type and material specifications of the tile used and the
authentically averaged design clearance, as laid, of the highest exterior point of
the tile and the nearest underlying roof surface.
"1707.9(k) - ASBESTOS- CEMENT SHINGLES
1. Asbestos- cement shingles conforming to the "Standard Specifications,"
ASTM Designation: C222 of the American Society of Testing Materials, may be applied
over roofs having an incline of four in 12 or more.
2. Asbestos - cement shingles may be applied over existing roofs, except
as prohibited in Sub - section 1707.9(c), provided such existing roof is in good con-
dition, or may be applied over a 30 -pound felt nailed with tin -caps 18 inches apart,
both ways.
3. Asbestos - cement shingles shall be nailed with not less than two nails in
each shingle and nails shall be non - corrosive and penetrating not less than three -
fourths inch into solid wood deck. Corners shall be tabged as required for com-
position shingles.
4. Asbestos- cement shingles shall project not more than one -half inch at
the eave or gable ends.
5. All intersections shall be flashed with non - corrosive metal not less
than 26 U. S. Standard gauge.
"1707.9(L) - SLATE AND COMPOSITION SHINGLES
Slate Shingles: (a) Slate shingles shall not be applied over roofs
having an incline of less than three and one -half in 12.
(b) Slate shingles may be applied over existing roofs, except as pro-
hibited in Sub - section 1707.9(c), provided such existing roof is in good watertight
condition, or may be applied over two 30 -pound felt shingled in and mopped and fully
nailed, as set forth in Section 1707.9(d).
(c) Slate shingles shall be nailed with not less than two nails in each
shingle, and nails shall be non - corrosive and shall penetrate not less than three -
fourths inch into solid wood sheathing.
(d) Base sheets shall be mopped over with hot steep asphalt and shingles
laid in hot mop except that where the incline is five inches per foot or more, the
mopping may be omitted.
(e) The edges of sheathing at eaves and gable ends shall be covered and
protected and all intersections shall be flashed with non - corrosive metal not less
than 26 U. S. Standard gauge.
COMPOSITION SHINGLES: Composition shingles of 12 -inch x 36 -inch three -
tab square butt strip shall not be applied on roofs having an incline of less than
two and one -half inches per foot and where an incline of two and one -half
inches per foot or more prevails shall be as follows:
(a) Felts shall be applied as set forth in Sub- section 1707.9(e).
(b) Composition shingles shall be applied with not more than five
inches exposed to the weather and with not less than four nails
per strip. _
(c) All butts of shingles shall be'tabbed with a spot of quick setting
plastic cement as follows:
(1) Under the center of the exposed portion of each tab there
shall be a spot of plastic cement not less than 2 inches x
4 inches square in size. The tab shall be pressed firmly
into the cement.
(2) The shingles at eaves and gable edges shall be set in a
solid coating of plastic cement eight inches from all
edges.
"1707.9(M) - METAL SHINGLES
1. Galvanized sheet metal shingles, not less than 27 gauge, and aluminum
shingles, not less than .040 inch in thickness, may be applied over roofs having an
incline of not less than five in 12.
2. Metal shingles may be applied over any existing roof, provided it is
in good watertight condition and provided the deck below is solid sheathed.
3. All roof decking shall be covered with a rosin sheet free from tar or
acid. The felt shall be well lapped and nailed securely to the decking. Gutters shall
be applied before the laying of any shingles. Shingles shall be laid in courses, the
first course to a chalk line running horizontally from gable to gable. Shingles shall
extend not more than one inch at the eave. Each shingle shall be nailed with not less
than three- non - corrosive nails.
-18-
"1707.9(n) - WOOD SHINGLES
1. Wood shingles shall be of clear vertical grain, all heartwood, not
less in thickness than five shingles to two inches at the butt, laid with the
following exposure:
Total Length of Shingle Permissible Exposed Length
16 "- - - - - -- —5 11
-------------------
18"----- -------------------- - - - - -5 1/2"
24"-------------------------- - - - - -7 112"
32"-------------------------- - - - - -9 1/2"
36"------------------------- - - --11 It
2. All wood shingles shall be nailed firmly with copper, zinc, zinc -
coated, aluminum, or commercially -pure iron nails of at least 14 B. and S. gauge
and not less than one and one -half inches long. Each shingle shall be nailed
with two nails driven substantially into the supporting roof construction so as
to securely press said shingle and all its parts to the supporting roof construction.
"1707.9(0) - ROOF INSULATION
Where insulation is applied over roof decks, such insulation and the
roofing shall be as herein set forth.
1. Vapor Barrier: To prevent moisture absorption from a roof deck
to the insulation applied above a roof deck, a vapor barrier may be installed and, if
so such vapor barrier shall be as follows:
(a) A vapor barrier applied over wood and gypsum decks shall be not
less than two 15 -pound felts lapped 19 inches or one 30 -pound
felt lapped four inches and shall be solidly mopped, at laps
between plys, with hot bitumin and nailed each 12 inches along
the lapped edge through tin -caps and both plys of felt. Where
tarred felts are used on wood decks, the felts shall be applied
over one layer of sheathing paper lapped two inches.
(b) A vapor barrier applied over concrete roof decks shall be not
less than two 15 -pound felts, lapped 19 inches and shingled in
and solidly mopped with hot bitumin.
2. Insulation: (a) Where insulation is attached with solid mopping it
shall be mopped with not less than 30 pounds of hot bitumin for each 100 square
feet of roof area. Where insulation is attached with solid mopping it shall be
pressed into position while the bitumin is hot and shall be laid with staggered joints.
(b) When more than one layer of insulation is used, each successive
layer shall be mopped in with hot bitumin and joints shall be staggered.
(c) Insulation applied to roofs with incline of three in 12 or more,
shall be nailed or screwed or bolted with tin -caps so that fastenings are spaced
not more than 12 inches apart, both ways, and only steep roofing asphalt and steep
coal tar pitch shall be used.
3. Water Cut -Offs: Water cut -offs shall be installed in accordance
with manufacturer's instructions.
4. Attachment: Roof insulation may be applied under or over the anchor
sheet but the attachment of the insulation and all membranes shall satisfy, or
shall be attached in such manner as to satisfy, the standards set forth in Section
1707.9(d).
-a9-
"1707.9(P) - METAL ACCESSORIES
1. General: Metal accessories for roofs shall be of non - corrosive metal
not less in thickness than 26 U. S. Standard gauge galvanized iron, 16 -ounce copper
or 0.025 -inch aluminum.
2. Gravel Stop: Gravel stop for gravel roofs shall be as follows:
(a) The deck flange shall be not less than a 3 inch width.
(b) The face minimum shall be 1 1/2 inches.
(c) The face shall extend down not less than 1/2 inch below the
sheathing or other member immediately contiguous thereto.
(d) The metal shall be attached to the sheathing each 6 inches on
center with 12 gauge ring - shanked nails one -inch in length.
(e) Gravel stop shall be installed after all of the roof felts have
been applied.
(f) The deck flange shall be covered with a 6 -inch wide strip of
membrane or 15 -pound asbestos felt applied in a bed of plastic roofing compound
covering all nail heads and extending over onto mopped felts or stripped with one
6 =inch and one 9 -inch felt and mopped with bitumen or approved adhesive.
(g) Joints shall be one of the following: (1) Joints shall be lapped
a minimum of 6 inches and the entire interior of the joint where metal fits to
metal shall be coated with mastic from the lower drip edge to the edge of the roof
flange. There shall be a minimum of 3 nails through the deck flange at the joint.
(2) Joints shall be butted (not lapped) with a 1/16 inch gap. The gap
shall be covered with a 6 inch long cover plate centered over the gap. The cover
plate shall be 20 gauge sheet metal or 24 oz. copper or .064 inch aluminum. The
material of the cover plate shall be the same as that of the gravel stop and drip.
The cover plate shall have holes punched in the deck flange section for nailing.
The cover plate shall have a deck flange not less than 2 1/2 inches in width and shall
be precisely profiled to fit over the gravel stop with mastic from the lower drip
edge hi the edge of the roof flange and then nailed with 6 ring - shanked nails
symmetrically spaced about the butt -joint of the gravel stop described, except
that where the roof incline is one or more in 12 the gable drip shall be lapped
not less than 2 inches and a cover plate shall not be used.
(3) Eave and Gable Drip: (a) Eave and gable drip for tile roofs, asbestos
shingle roofs, composition roofs and mineral surface roofs shall be applied with
not less than 1/2 inch flange on the roof.
(b) The drip shall be nailed 6 inches on center into sheathing with three -
quarter inch, ring - shanked nails.
(c) The joints shall be lapped not less than 3 inches.
(d) The drip shall be installed between layers of felt.
(e) The face shall be a minimum of 1 1/2 inches but not less than 1/2 inch
below the sheathing.
4. Valleys: (a) Metal valleys shall be of corrosion - resistant metal
not less than 12 inches in width.
(b) Metal valleys shall be installed on top of the sub -roof, set in hot
asphalt or plastic cement, stripping edges of valley with not less than one layer of
15 -pound felt with 4 inch minimum width and scaling edges with plastic cement before
-20-
laying of the finished roof of tile, quarry slate, asbestos shingles, composition
shingles or similar materials.
(c) Valley metal shall have a minimum 4 inch end lap.
5. Rake and Cap Flashings: Rake and cap flashings shall be installed
in the same manner as metal counter flashings in Sub - section 1707.9(P)8.
6. Crickets and Saddles: Crickets and saddles shall be installed to top
of the sub -roof and stripped into the sub -roof with not less than one layer of
30 -pound felt sealed with plastic cement. Crickets and saddles joining vertical
surfaces shall be flashed in the same manner as metal counter flasings in Sub-
section 1707.9(P)8.
7. Metal Base Flashings: Metal base flashings shall be installed after
the 15 -pound roofing felts have been laid and turned up the vertical surfaces. Felts
shall be imbedded in and mopped over with hot bitumin. The metal base flashing shall
then be set to extend not less than eight inches up the vertical surface and six
inches on the roof, being nailed to the roof deck on three• -inch centers. Where the
roof deck is not nailable, a wood nailing strip shall be installed. The roof flange
shall be stripped with one 15 -pound felt not less than six inches wide completely
covering the first. The end lap of flashing shall be locked and /or soldered.
8. Metal Counter Flashings: Metal counter flashing shall be turned down
over base flashing not less than four inches and shall be set into a reglet one -
half inch deep. The reglet shall be from nine to twelve inches above the roof
deck or above in- the -wall metal counter flashing, or above stucco shoulder metal
counter flashing. Reglet block or metal form flashings shall be built into the wall
and the base felt flashing shall be thoroughly caulked into flashing joints.
9. Vent Pipe Flashings: All vent pipes shall be properly flashed with
approved lead, sleeve -type flashing, pitch pans or other approved methods as pro-
mulgated by the Building Official within the guidelines of the applicable or related
provisions of this Code. Where vent pipes extend more than 12 inches above the roof, a
collar or draw band may be installed around the top of the lead flashings and thoroughly
caulked into place.'
10. Overflow Scuppers and Outlets: Overflow scuppers and roof outlets
shall be lined with metal and installed not more than 2 inches above the low point
of the roof.
11. Gutters and Downspouts: Gutters and downspouts shall be constructed
of metal with lapped or soldered or caulked joints and shall be securely fastened
to the building with a standard type of fastening device."
SECTION 15. Wherever in Section 11 -5 of the Corpus Christi City Code,
1958, as amended, or in the Southern Standard Building Code, 1969 Edition, and
its 1970 Appendices, as adopted and as amended by this City, reference is made
to "approved" materials or devices, unless otherwise expressly provided for in
said City Code, the said Southern Standard"Building Code, the said Appendices, or
this ordinance; such "approved" materials or devices shall be those as officially
filed from time to time by the Building Official in the written "Approved Materials
and Devices File" of the office of the Building Official, available during all
-21-
regular hours of business of said office for public inspection, promulgated
conformable to all applicable State laws and the Charter and ordinances of the
city. Unless other guidelines are set forth in the said City Code, the said
Southern Standard Building Code, the American Society of Testing Materials, or
the Underwriters' Laboratories, Inc., or the periodic Bulletins, Letters, Announce-
ments, and Recommendations of the Southern Standard Building Code Congress,
in which events the City Building Official shall be guided by the same, the
Building Official is hereby directed to establish such approved materials and
devices, rules and standards in accord,.with the guidelines of the generally
accepted, safe, and proven materials and devices recommended by the City Board
of Building Code Appeals and approved by the City Manager.
SECTION 16.. It is hereby directed that the original of this ordinance,
upon final passage, shall be filed in the office of the City Secretary as a part
of and as the authenticated amendment of the aforesaid Corpus Christi City Code,
1958, as amended, of the aforesaid Southern Standard Building Code, 1969 Edition
as amended, with the 1970 Revision, and of the Appendices thereto, for all pur-
poses, and shall be integral to the "Building Code" of the City, commonly called.
SECTION 17• All ordinances or parts of ordinances in conflict herewith
shall be and are hereby repealed to the extent of such conflict.
SECTION 18. If for any reason any section, paragraph, subdivision,
clause, phrase, or provision of this ordinance shall be held invalid by final
judgment of a court of competent jurisdiction, it shall not affect any valid
provisions of this or any other ordinance of the City of Corpus Christi to which
these rules and regulations relate.
SECTION 19. Publication hereof shall be made one time in the official
publication of the City of Corpus Christi, by publishing the•caption of this
ordinance, stating in substance the purpose of the ordinance.
d
41,
That the foregoing ordinance was read for t e first time and
passed to its second reading on this the a day of
19 171 , by the following vote:
Jack R. Blackmon
Gabe Lozano, Sr.
V. A. "Dick" Bradley, Jr.
Eduardo E. de Ages
Ken McDaniel
W. J. "Wrangler" Roberts
Ronnie Sizemore
That the foregoing ordinance was rea for) the second time and passed
to its third reading on this the Li day of 19
by the following vote:
Jack R. Blackmon
Gabe Lozano, Sr.
V. A. "Dick" Bradley, Jr.
Eduardo E. de Ages
Ken McDaniel
W. J. "Wrangler" Roberts
Ronnie Sizemore
%That the foregoing ordinance was rea for the third time and passed
finalLy on this the day of by the following
vote:
Jack R. Blackmon
Gabe Lozano, Sr.
V. A. "Dick" Bradley, Jr. '
Eduardo E. de Ages
Ken McDaniel
W. J. "Wrangler" Roberts
Ronnie Sizemore
PASSED AND APPROVED, this the day of , 19 .
A7 F /OF OP �c Al �n
City Secreta MAYOR
/ THE CITY OF CORPUS CHRISTI, TEXAS
APPROVED AS TO LEGAL )FORM IS THE
DAY OF 4- , 19 L:
Ey Attorney
M
PUBLISHER'S AFFIDAW"M"J�-�
STATE OF TEXAS,
County of Nueees.
Before me, the undersigned, a Notary public, this day personally came ............_......_...:.._._.
Bann. .* ............. . ............... who being first duly sworn, according to law, says that he is the
..01assif iad.-.Manag;er ------- - ---------------------------- of the Corpus Christi Caller and The Corpus Christi Times,
Daily Newspapers published at Corpus Christi, Texas, in said County and State, and that the publication of
...........assn e__ of Ordinance Np.t ... gg
of the C. C. City Code, 1958� ' to Hurricane precautions - --
of which the annexed is a true copy, was published in ....... limea ..... . .......................... . .............. . ..
on th422.nd-- day of. .............. A-pri-1 ............ 1973-_*"-eaee-&neh ............................ thauesuen-for ... . ...... . ......
-eenfieetAi*4 t----...._ .................................... . .......
...................... lInies.
4
....................
_...Levan " dv. Pdgir.—
Subscribed and sworn to before me this *...A. Pri - L
Louise Vick