The Detroit times., 1911-02-20

should any story exceed the
heights here given. such story
must be considered as two CD or
more stories In height.
having q ground moor area OF not
over one thousand u,OOO) SO. II.
having nat roofs, may have eight
eD inch outside masonry walls
on a twelve C2) inch thick foun-
dalton wall up TO the nrst moor
level. provided. however. that said
outside walls do not exceed NIFTY
800 feet In length.
One story buildings having no
one wall more than twelve tl2)
feet high above the grade. nor
more than twenty -iye C25) feet
long. may have walls OF brick
concrete or hollow blocks, eight
such walls must have twelve Q2)
inch thick foundations up 10 the
first floor level and should these
buildings have sloPing roofs the
eight (s) Inch walls must have
sec 3. BONDING. For all com
mon brick walls and piers. the
brick work shall be bonded by
once every sixth course In height,
Where pressed or other brick
than common Is used for facing,
this facing brick shall DO
thoroughly bonded into the back
ing
bondS the 'n face brick shall be
bonded with metal wall ties spac-
ed not over eighteen (lS inches
either way, or the face brick split
and a continuous row or full head
ers behind.
II the face brick and the
backing brick are OF different
thickness, they must have brick
bond at least every tenth course.
otherwise the four ca inches OF
part OF the thickness OF the wall
as required under this ordinance.
II brick walls are laid In
Flemish" or English" bond, at
least every fourth head must be a
full header. IL the face brick and
the backing OF brick are OF such
different thicknesses that this
cannot be done. the four CD
inches OF face brick shall not DO
counted as part OF the thickness
All intersecting walls shall be
thoroughly bonded at the intersec-
lions with regular brick bond
when possible, otherwise Win
less than S-sxl 1-2x24 inches. and
spaced not over ave CD feet
apart.
Sec 4. TERRA Gotta FACING,
Where Terra Gotta facing Is used
for walls. this Terra Gotta must not
be counted as part of the regular
thickness OF the wall, unless this
Terra Gotta Is bonded with con-
tinuous brick bond TO the wall
backing at least every twelve (12)
inches in height. and provided no
course OF Terra Gotta shall exceed
In height three times it's bed, and
provided that all hollows for the
full extent OF bearing shall be
filled In solid with brick In
cement or with concrete.
All projecting courses OF Ter
ra Gotta must have sufficient
bearing on the wall TO bring the
center of gravity at least four (D
ample steel frame anchors APPROX
ed by the department OF buildings.
Sec. S. AsHLAR stone used
for the facing of any building,
and known as Ashlar shall not be
less than four ca inches thick.
Stone Ashlar shall be anchor
ed to the backing, and the backing
shall be OF such thickness as 10
make the walls, independent OF
Ashlar. conform In thickness with
the requirements OF this ordi-
should the Ashlar be not less
that eight (s) inches thick and
bonded into the backing. IL may
be counted as part OF the thick
Iron Ashlar plates used In
Imitation of Stone Ashlar on the
face of the wall. shall be backed
M. with the same thickness OF
brickwork as required for a brick
wall without Ashlar.
All projecting courses OF
stone must have sufficient bear
ing on wall to bring center OF
gravity at least four ca inches
&C. wATrc AVN Drrpc or,
CoURsED STONE. Where walls or
outside piers are built OF coursed
stone with dressed level beds and
vertical joints, such walls or piers
may be built OF a less thickness than
the specified brickwork. provided the
crushing strength OF the stone is
greater than the brick. but in no
case shall walls or piers be less than
three-quarters ca OF the thickness
provided for brick work
Sec. Z. LEDGES. In buildings
OF Glasses !. and when. OF ord
nary" or NH construction bear
ing walls sixteen U6) inches OF less
In thickness shall have corbelled
brick lodges projecting at least four
ca inches TO carry the ends OF joints
or beams.
In buildings OF Glasses and
and OF similar construction. and hav-
ing twelve U2) inch bearing walls
the joists and beams shall not ex-
tend more than four 90 inches into
the wall.
Sec. s. PARTY WALLS. Party
walls between buildings belonging TO
different owners shall be at least
four 90 inches more I'm thickness
than required for bearing walls.
Party walls between buildings be-
longing TO the same owner and
erected at the same time shall not
be less In thickness than required
for external bearing walls.
All openings In party walls shall
have regular underwriters standard
IRE resisting doors on each side OF
Sec. 9. DIVISION WALLS. In
buildings OF Class /. division walls
will be required as follows: When
In ordinary construction" any In
dividual floor space exceeds 5000
square feet, I'm mill construction"
''nre-proof construction $4,000
square feet. The walls when re-
quired shall be OF the thickness
given In the table. and all openings
In the walls shall have regular un-
derwriters' standard fire resisting
Buildings so divided shall be treated
in regard 10 stairs and fire escapes
as TWO or more separate buiidings.
Sec. 10. PARAPET WALLS.
Parapet walls of brick. not less than
IL inches thick. covered with wealth
er proof coping OF incombustible ma
terial and extending at least one
foot six inches above the roof OF
buildings not over three stories high
and three feet for buildings more
than three stories high shall be
built on all buildings where such
roofs are fiat. where the roofs abut
against other buildings, or the
building stands on any lot line: also
over division walls between separate
buildings or over division walls OF
the same building, on street or alley
lines. Parapet walls may be dispensed
with on street and alley lines lf the
main walls are finished with incom-