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thereof an area properly paved and effectually drained
and at least four feet wide in every part thereof, provided
that the width of such area may not be less in any part
than three feet, if the mean width of the area be not
less than four feet; provided also, that in the area there
may be placed steps necessary for access to the room,
and over and across such area there may be steps
necessary for access to any buildings above the room,
if the steps are so placed in such case as not to be over
or across any external window of the room.
(d) The space, if any, beneath the floor of such room shall
be provided with adequate means of ventilation.
(e) Every drain passing under any such room shall be
perly constructed of a gas-tight pipe.
(f) Such room shall be effectually protected against the rising
of any effluvia or exhalation by means of a layer of
good cement concrete at least six inches thick laid upon
the soil of the site of the entire room, or by some other
equally effective means.
(g) Every such room which is without a fireplace and a flue
properly constructed and properly connected with such
fireplace, shall be provided with special and adequate
means of ventilation by a sufficient aperture or air-shaft
which shall provide an unobstructed sectional area of
100 square inches at the least.
(h) Such room shall have one or more windows opening
directly into the external air, with a total area clear
of the sash frames equal to at least one-tenth of the
floor area of the room, and so constructed that one-half,
at least, of every such window can be opened, and that
the opening may be in every case extend to the top
of the window.
These regulations shall come into force [on the Second day of
October, 1911,