The Richmond Virginian. (Richmond, Va.) 1910-1920, 1920-03-10
ORDINANCES.
AN ORDINANCE.
tApproved March !. is20)

fAppToSed MafCn q, IS2U1
In relation TO the use OF hollow tile
or terra Gotta in the construction
of buildings of certain kinds In tht
City of Richmond.
Be II ordained by the Council OF the
City of Richmond
l. Thai hollow tile may be used for
the exterior walls of detached and
semi-detached dwellings. private
stables and garages. three stories OF
forty feet or less in height. also cur
tain walls OF freproof buildings, pent
houses and bulkheads
2. Hollow building blocks OF terra
Gotta shall be sound. hard and vel.
burned and shall develop IN ultimate
crushing strength per square inch OF
gross area Of not less than 1900
pounds when tested with the cells
paced vertically. and 500 pounds with
the cells placed Horizontally The
allowable working stress on such
blocks tested with cells placed te~ti-
ca'iy shall not exceed fa0 porufs per
sG!nre inch and with eels placsd
horizontally shall not exceed ffts
lftands per square inch.
Tiles shall have outer"shcli or wall
rot less than seven ei-h.s Inches
IN 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. If used for foundation work
shall have an absorption nj not n,are
than eight per cent. II used expos ID
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 ahsosp-
Htion Of not greater than twelve per
cent. hut no individual tile shall have
an absorption greater than fifteen per
cent.
The Building Inspector may re-
uuire a test To he made Of such blocks
before allowing same to be placed in
the walls 1t In his Judgment there be
any doubt as to whether such blocks
proposed to be used meet the re-
qnirements above specified
3. No hollow tile or terra Gotta wall
or partition shall be supported In. par
.or entirely by any wooden or other
cnmhustihle beam. girder or post No
chimney shall be constructed of hoI-
low tile or terra Gotta. unless said
chimney liz lined from one end TO the
other with hard burned terra Gotta
fine lining which is ia he surrounded
with not less than four inches OF hol-
low tile block ON the interior side Of
the building and eight inches OF hol-
low tile block on the exterior side OF
the building. Flue lining TO be laid
Ia a solid bed of mortar. pointed in
side and out, F'lue lining To be set
one Joint ahead OF the tile and to
break joints with the the. All spaces
except the Hue aud the fire place to
be flIed solid with masonry
I. Hollow tile exterior walls shall
be ths same thickness as now re-
quired for brick walls, unless a spe-
cial tile Of no greater absorption than
ten per cent rs used It shall he veneer
ed on the outside with three-fourths
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 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-