The Detroit times., 1911-02-21


inches Ia thickness for each add
tional one hundred (loo) feet or
fraction thereof.
Curtain Walls supported st In
tervals OF not over fifteen (lb)
feet may be twelve (i2) inches
thick THE for the a upper 1,, one hun hundred
height and Increased four ca
inches I'm thickness for each one
hundred tloe) feet or fraction
thereof.
In buildings OF reinforced con-
crete where the columns are built
reinforced and OF full strength and
carrying capacity, as called for I'm
THIS ordinance. the walls between
built as called for in this section.
Sec. -. APRON WALLS. Apron
walls may be built eight (S) inches
thick n not more than twelve QO
feet long. nor more than fivs go
feet high. otherwise they shall be At
least twelve (l2o inches thick and In
all cases they must be bonded into
the piers at each end.
Sec. IA RESIDENCE PARTI-
TON WALLS. In residences eight
inch masonry interior partition walls
may be built two stories high and
permitted to carry Joists and beams
above. II the length between cross
"
coed so feet. and II the clear span OF
the beams or Joists supported shall
not be over 20 feet long. Otherwise
the brick or concrete partition
walls must be IL inches thick. or
shall have piers or buttresses OF
such size or capacity as the De-
partment may deem necessary.
should the clear span OF the
supported beams exceed thirty
eight feet. the supporting, partition
l. H. Nn0
or twelve inches thick. with ample
piers and buttresses.
Sec. Is. PIERS-BUTrRESS
Piers or walls with buttresses may
be used In place OF continuous
material called for In this ordi-
nance for these walls In used In
the piers or walls with buttresses:
All such piers shall be built or
good. hard brick. laid In cement and
sand mortar. with uniform joints
OF sufficient size 20 safely carry
the load intended for them.
The joints shall not exceed one
half (h) OF an inch In thickness.
sucn piers may be built OF rein
a. called for IN this ordinances.
All piers shall be bonded as
used. different In size from the
backing brick. the same regula-
U All face fac. S sPiok In piers must b.
laid to have full bearing OF mortar
under the entire surface OF sscn
The laying Of face brick IN piers
outer edge of the brick II prohibit
All isolated brick piers shall
have bond stones at least hve lel
inches thick, or steel plates AZ
inch thick. ana Of full size Of piers
and spaced at intervals Of not more
than four .(p times the least di-
mension OF the piers.
Cap stones not less than five
I'D Inches In thickness. or steer
plates. proportioned in either case
the full size OF e the pier. shall be
set under all columns or girdsrs
bearing on piers.
In the case OF an external brick
pier, the metal plate may De re-
four as inches Of brickwork to
intervene between the edge or the
plate and the face OF the pier sx-
posed to the weather.
Isolated piers shall not exceed
In height ten tlo) times their least
Sec is' STONE PIERS UNDER
INTERIOR COLUMNS. Stone piers
for the support OF posts or columns
above. shall not be used In the In
terror Of any 6TildinS rx,srrNo
WALLS. In case II Is desired TO IN
crease the height OF existing walls
which are less in thickness than re-
quirsd under this Ordinances. the
masonry to form combined
thickness with the old wall OF not
less than four 90 inches more than
the thickness required for . new
wall under this Ordinance.
The new lining shall be support
ed on proper foundations
No lining shall be less than eight
(s) inches in thickness, and all I'm
ing shall be laid up In cement NOR
tar and thoroughly anchored TO the
old wall with suitable wrought
iron anchors. spaced not over two
CD feet apart. vertically and horf-
zontally and properly fastened or
driven into the old walls In stag
gered rows. the old walls being
first cleaned OF all plaster and all
other coatings.
All Innings to q basement Wall
thick and must project at least
four CD inches beyond lining or
wall OF the story above.
There may also be used to In
crease the height of buildings. steel
skeleton construction With ample
Sec Is. EXISTING PARTY
WALLS. Walls heretofore built or
used as party walls. whose thick
ness at the time OF their erection
was In accordance with the then
existing laws. but which are not In
accordance with the requirements
OF this Ordinance. may be USED. IL
in good condition. for the ordinary
use OF party walls, providing the
and provided further that the con-
dillon OF stability required by this
Ordinance are complied with.
Sec. 10. HOLLOW WALLS. For
ell walls built hollow. the same
shall be used in their construction
as II they were built solid, and no
hollow wall shall be built unless
the different parts are connected
by proper ties, either. OF brick.
Sns 0 mets s Rne aSSsa apart po 0I No
hollow wall shall have any bear
ing part less than eight CD inches
All hollow walls must be finished
'O Sec. az 60 the mellow eSp TILE WALLS.
Eight (s). six (6), four co and
three (s) inch hollow tile or hard
burnt clay or porous terra Gotta or
Portland cement block, non bearing
partitions may be built not exceed
Ing in their height a measurement
OF thirty (30). twenty-five (2D,
eighteen (1s) and twelve CAD feet
respectively and in length not ex-
ceeding seventy-five (75) feet, UNI
less strengthened by proper cross
walls, piers OF buttresses or built
in iron or steel frame work. when
the latter In Undecided in or tnsu-
lated by the same material. OF
which the partition 10 constructed.
Sec. II. TILE WALL LININQS.
Where hollow tile or porous terra
Gotta blocks are used as lining or
turing for walls. they shall not be
included in the measurement OF the
thickness OF such walls, except In
curtain walls not over one Cd
story or fifteen (15) feet high, or
in apron walls.