The Richmond Virginian. (Richmond, Va.) 1910-1920, 1920-03-11
WANTS
ORDINANCES.
AN ORDINANCE.

or terra Gotta in the construction
of buildings of certain kinds in the
City OF Richmond.
Be it ordained by the Council of the
City of Richmond
1. 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 bulkheads.
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 1900
pounds when tested with the cells
placed vertically, and 800 pounds with
the cells placed horizontally. The
allowable working stress on such
blocks tested with cells placed verti-
cAaly shall not exceed 100 pounds per
square inch. and with cells placed
horizontally shall not exceed City
rounds per square inch.
Tiles shall have outer shell or wall
not less than seven-eigh.s inches
tn thickness in its least dimension
All interior webs shall have not less
than three-fourths inches in thick
ness Tiles shall be constructed with
at least forty-five per cent solid ma
terial. II used for founda ton work
shall have an absorption of not more
than eight per cent. If used expos I'd
without stucco, shall have an absorp-
ton of not more than ten per cent
II used with veneer on the outside
they shall have an average absocp-
ftion OF not greater than twelve per
cent. but no individual tile shall have
an absorption greater than fifteen per
cent.
The Building inspector may re-
quire test to be made Of such blocks
before allowing same to be placed in
the walls IL in his judgment there be
any doubt as to whether such blocks
proposed to be used meet the re-
quirements above specified
8. NO hollow tile or terra Gotta wall
or partition shall be supported In part
or entirely by any wooden or other
combustibie beam, girder or post No
chimney shall be constructed OF hol-
low tile or terra Gotta. unless said
chimney is lined from one end to the
other with hard burned terra Gotta
due lining which is to be surrounded
with not less than four inches of hoI-
low tile block on the interior side of
the building and eight inches Of ho1-
low tile block on the exterior side OF
the building. Flue lining to be laid
In a solid bed OF mortar, pointed in
side and out. Flue lining to be set
one joint ahead of the tile and to
break joints with the the. All spaces
except the flue and the fire place to
be filled solid with masonry
d. Hollow tile exterior wallis shall
be the same thickness as now re-
auired for brick walls, unless a spe-
ten per cent is used it shall be veneer
sd tina outside with fhro eft n a
inches thick Portland cement mortar.
A veneer OF four inches OF brickwork
may be figured as part of the thick
ness OF the wall provided the bricks
bond with the terra Gotta block every
twelve inches and a special terra totta
bonding block is used
Architectural terra Gotta, or stone
bonded or tied with metal wall ties
twenty -four inches on center, verti-
cally and horizontally may be used
as a veneer in place of the Portland
cement mortar. but may not be con-
sidered as part of the thickness OF the
wall
Hollow tile may be used for In
terror partitions in the above men,
toned buildings; however, such par.
tftions shall be at least three inches
thick if twelve feet in height, four
inches thick II twelve to sixteen feet
in height and at least six inches thick
when sixteen to twenty feet In height,
and at least eight inches thick when
twenty to twenty-six feet in height
thickness OF partitions of height ex-
ceeding rs feet to he as may he APP
proved by the Building Inspector. but
when the length of any partition OK
ceeds fifty feet. they shall be suffi-
GENTLY strengthened by cross walls.
partitions. piers and buttresses. sub
iect to the approval of the Building
Inspector
s. All opening over three feet In
, width in hollow tile walls shall have
.intels composed of steel. reinforced
concrete. or reinforced tile OF suffi
cient strength to carry the load i'm
posed.
7. When the floor or roof load is
applied to said bearing or exterior
walls on concentrations OF two or
more tons at one place, a solid pier of
brick. reinforced concrete. or con-
crete filled tile shall be used under
each concentration, each OF said piers
to be not less than twice the thick
ness of the wall OF which 1t is a part,
and no pier shall be loaded in excess
of 100 pounds per square inch of its
area.
Whenever the floor slab or joists
rest on hollow terra Gotta wall COM
posed OF tile, with voids set verti-
cally. or wherever change in tho
thickness of the wall occurs, the
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