The Richmond Virginian. (Richmond, Va.) 1910-1920, 1920-03-08
AN OEDIN ANCE.

In relation to the use of hollow tile
or terra Gotta in the construction
of buildings of certain kinds in the
City Of Richmond.
&c 1t ordained by the Council of the
CITY of Richmond
/ That hollow tile may be used for
the exterior walls of detached and
semi detached dwellings private
stables and garages, three stories or
forty feet or less in height. also cur
tain walls Of fireproof. buildings, pent
houses and huikheads.
2. Hollow building blocks of terra
Gotta shall be sound, hard and vel.
burned and shall develop an ultimate
crushing strength per square inch Of
gross area of not less than 1,2oa
pounds when tested with the cells
the cells placed horizontally. This
allowable working stress on such
books tested with cells placed Ve-l-
ca,iy shall not exceed 30 pounds pe-
square inch, and with cells placed
horizontally shall not exceed fifty
rounds per square inch.
Tiles shall have outer sholl er wall
not less than seven-eigh.s inche s
in thickness in its least dimension
All interior webs shall have not less
than three-fourths inches in thick
HEE<e lies SHSAii bG CpILSLE utLtd VIII ii
at least forty-five per cent solid ma.
terial. It used for foundation work
shall have an absorption of not NOR.
than eight per cent. IL used exposed
without stucco, shall have an absorp.
tion of not more than ten per cent
II used with a veneer on the outside
they shall have an average abso-p-
Alton of not greater than twelve PEI
cent, but no individual tile shall have
an absorption greater than fifteen pei
cent
The Building Inspector may re
quire a test to be made OF such blocks
before allowing same to be placed Ii
| the walls II in his judgment there b.
any doubt as to whether such block
| proposed to be used meet the re
| quirements above specified.
| ). No hollow tile or terra Gotta wal
| or partition shall be supported in par
or entirely by any wooden or othe
| conabustibIe beam. girder or post. NJ
chimney shall be constructed of hol
| low tile Or terra Gotta. unless SAT-
| chimney is lined from one end to tn
other with hard burned terra cotti
| ffue lining which is to be surrounde'
with not less than four inches of hol
low tile block on the interior side o
| the building and eight inches of hol
law tila block on the exterior side @
the building, Flue lining to be lal
! in a solid bed OF mortar. pointed In
side and out Fiue lining to he sc
one joint ahead of the tile and I
break joints with the the. All space
except the fiue and the fire place t
be filled solid with masonry
T. Hollow tile exterior walls sha'
be the same thickness as now re
CURED for brick walls. unless a spe
cial tile of no greater absorption tina
ten per cent is used it shall be veneer
ed on the outside with three-fourth
inches thick Portland cement nortal
A veneer of four inches OF hrickwor
4 may be figured as part of the thick
mess OF the wall provided the brick
bond with the terra Gotta block ever
twelve inches. and special terra tett
bonding block Is used.
Architectural terra Gotta or ston
bonded or tied with metal wall tie
twenty -four inches on center, vert
cally and horizontally may be use
as a veneer in place OF the Portlan
cement mortar. but may not be col
! sidered as part of the thickness Of tn
! wall
Hollow tile may be used for il
| terror partitions in the above mer
toned buildings; however. such PAL
! titions shall be at least three inchs
| thick II twelve fecS IN hefght, Iol
inches thick IL twelve to sixteen fe'
in height and at least six inches thie
when sixteen to twenty feet in heigh
and at least eight inches thick whe
! twenty to twentysix feet in heigh
! thickness OF partitions of height e,
, ceeding Is feet to be as may be al
proved by the Building Inspector, hl
when the length OF any partition e
ceeds fifty feet, they shall be sufi
ciently strengthened by cross wall
, partitions. piers and buttresses. SUI
!, iect to the approval of the Ruildif
, Inspector
a. All opening over three feet
l width In hollow tile walls shall ha'
iintels composed of steel reinforc,
3 concrete, or reinforced tile OF suf
9 cient strength to carry the load In
r posed.
! Z. When the floor or roof load
: applied to said bearing or exteri
walls on concentrations OF two
more tons at one place, solid pier
brick, reinforced concrete. or ca
crete filled tile shall be used und