, 1922-05-20

- NaAA1
shall rest on concrete or masonry
footing not less han s inches in
thickness and II inches in width;
provided, that width Of footing shall
be proportioned so that loads on soil
shall not exceed the bearing capaci-
ties stated in Section 3 of Article IL.
No footing shall rest on a dirt fill
or rubbish. Concrete foundation
walls shall not be less than 8 inches
in thickness.
All concrete shall be mixed one
part Portland cement. three parts of
sand, and five parts of coarse agyre
gate, properly graded. All founda.
zion walls shall start not less than
n foot below ground level
ARTICLE XVI.
Chimneys and Firepiaces.
Se-fion I. Except as herein pro
vided. all chimneys in every building
hereafter erected. and all chimneys
hereafter altered OF rebuilt. shat be
constructed Of brick. Casper asbestos
chimney blocks. stone. reinforced con.
crete. or other materials approved by
the Board of Underwriters. All nues
shall be laid with s-inch walls or shall
be laid with finch walls and lined
with sound. hard burned. stiff mud
nrc-clay rue-lining from a point is
inches below lowest thimble, continu.
ously to a point > inches above top Of
chimney. Chimneyu containing more
than two Tues shall have tho vithe-
walls not less than 4 Inches in thick.
ness.
Where no nuo lining Is used. all
brick shall be aid in cement mortar
showed joints, and inside Joints shall
be trowel struck.
No chimney in any building shall
have wooden supports OF any kind:
supports shall be -incombustible and
shall rest upon the ground or founda-
ton. All chimneys which arc dangerous
trum any cause shall he repaired and
made safe or taken down. All chin
neys shall protect throe feet above fla
roofs and two feet shove ridge or
pitched roofs. No brick chimney shall
be corbelled put more thar s inches.
Flues Of greater area than 500 sd.
inches shall be lined with fire brick
from a point two feet below the low.
est thimble to a point 20 feet above
the crates.
Section 2. The flreback Of every
fireplace hereafter erected shall be not
less than 5 inches in thickness OF solid
wall, or 1e-inches of stone lined with
tire-brick. When crate IL set in a fire
place. a lining Of friedrich at least .
al in thickness shall be added to
the fireback; or a lining OF soapstone.
tue, or cast iron may be used. No
wooden beams or Joists shall be placed
within l inch of the outside face OF n
chimney or flue. whether the same be
for smoke air. or any other purpose:
no woodwork shall be within 4.inches
OF the back wall of any fireplace; all
spaces between the chimney and the
wooden beams shall be solidly filled
with mortar. mineral wool. asbestos. or
other incombustible materiai. The
header beam. carrying the all beams
OF the floor and supporting the trim.
mer arch in front of the fireplace,
shall not be less thar 20 inches from
the chimney breast.
ARTICLE XVII.
Stovepipes and Metal SmokastacIxs
Section 1. 1t shall not be lawful fol-
the owner. lessee. agent, or any Other
person having the control of any saw
mill or planning mill. factory OF any
kind or any foundry or machine shop
or any other establishment where
steam power shall be used. to use, con.
tinue the use of. maintain or erect any
smokestack or chimney in connection
with any such establishment OF less
height than twenty feet above the
buildings adjoining or adjacent there.
TO.
Section 2--Metal smokestacks and
pipes may be used for boilers. fur.
naces. and similar apparatus. provided
they have a clearance from all com.
bustible material OF not less than one.
half the diameter of the pipe.
Partitions, ceilings or roofs made of
combustible material shal be provided
with a standard ventilated thimble. as
approved by the Fire Underwriters,
where pipes or flues pass through
same as provided by Sections 2 and 3.
Section 3. Small gas stoves and
gas heaters may be ventilated by
means of flue OF metal or other in.
combustible material extending through
the roof provided that they are prop.
erly protected where they pass through
floors and roofs or near any wood
work or other. combustible material.
ARTICLE XVIII.
Heating system.
Section 1. Hereafter all heating
plants installed in any building in this
city shall be subject TO the approval OF
tho Building Inspector. and a permit
granted before any plant is installed.
Section 2.-All hot air pipes, stacks,
heads. elbows. tees. angles and fittings
of all kinds. including boots or foot
pieces, connection around the base.
ment hot air single pipes to stacks or
outlets shall be made of bright coke
tin. There shall be n continuous, uni.
form air space OF not less thar sic OF
an inch. which must be maintained.
between h outer and inner walls of
all pipes and fittings of All kinds
styles, and descriptions, except the
Easement pipes and boot or fov. pieces.
Such pipes. heads and other fittings
shall be n of the several makes ac.
cepted and approved by the National
Board Of Fire Underwriters. or their
equal. as determined by the building
inspector. Cold-air ducts for hot-air
furnaces shall be of incombustible ma
terial. Every hot-air furnace shall