Alexandria gazette, commercial and political. [volume] (Alexandria [Va.]) 1812-1817, 1817-05-08

be laid, in the contrary direction to the
Ijoists, that is TO say at right angles with
Them, and so as to fll up the intervals
between them, close together in row, Sc
as to touch each other without tapping
lover each other-their ends resting upon
he fillets, and well bedded in the plas'
;er-no nails are to be used in fastening
these short pieces Of lath down.
These short pieces Of lath ought then
to be covered with one thick ccat Of the
rough plaster, which sloald be spread all
over them, and brought with troweil to
be about level with the tops Of the jolsts
but not above them. In day Or that Is
before it gets too dry to yield TO- the
the plaste. should be carefully
trowelled all over close home to the sides
fof he ioists, so as to leave no vacnlty
crack. or crevice; bat no part Of the plas
ter is TO be left on, or above the level oil
the tops of the joists
DOUBLE UNDERFLooRING--is IN the
first part Of it exactly the same as that
Ihr.t described, only the coat OF rough
plaster ought to be but little more than
half as thick and as last as that coat OF
rough plaster is !ai, on, some more OF the
short pieces of hath must be laid in the
same direction as the Others upon the
|paster. one after tie other, bedded deep
and quite sound aud firm in it, While il is
soft. and close to each other as the first
l!aver. A coat Of the same kind of p!as.
ter should then be sp.ead over this second
Iiayer. and treated in all respects like the
oiher.
When the rough plaster work between,
the ioists has got thoroughly dry, 1t ought
| to be observed whether or not there be
any SINAI! cracks in it, particularly next
TO the ioists. If there be any, wash them
over with brush wet with mOrtSr wasi
lib which will etfectuaiIy close them
but there will never be any cracks at all
If the instructions in A be properly at
tended 70.
Before the flooring boards are laid,
small quantity of very dry common
sand should be strewed over the rough
plaster work, but not on the tops OF the
|ioist. The sand should be struck smooth
with hollow rule, which ought to be
about the length of the distance irom ioist
70 ioi,t. AMI cs about one eighth Of An
Inch curvature which rule passing over
The sand in the direction with the joists
will cause the sand to lay rather round
ling he middle OF the interval between
each pair OF joists II" flooring board.
may then be laid and fastened Down in
the usual manner-but very particular
attention must be paid TO the rough pias-
ter work aud to the sand being u,ost per-
fectly dry before the boards are laid, for
fear of the dry rot Of which however,
there is no kind OF danger, when Ibis PIE.
caution is made use ot.
The methed of uude. flooring, ] have
also applied with the utmost success TO
a wooden stair case. Il is made TO fol
low the shape OF the stcPs-but no sand
is laid upon the rough plaster " crk.
I'd. ExrRA.LATHING.
This NAY be applied to CEILING jnists.
to sLopINu ROOFS, and 20 WOODEN PAR
rlrIoSs. Ii is simply this
rs The laths are gong TO be nailed on,
Spr cad some OF the rcugh plaster between
these laths and the jcists, or timbers
agaiust which they are to be called
nail the laihs as close as possible to each
Jther. When either of the ends of any
of the iaths lap over other laths, it ought
20 be attended TO that these ends be
bedded Sound in some of the same kind
Of rcu.h plaster. This attention is equal
" necessary for The second layer of
isths hereafter mentioned.
The first layer c: laths ought to be CO.
veTcd with pretty thick ccat of the
plaster. A second layer OF laths ought
then to be nailed on, each lath being. as
il is put on, well squeezed and beddcd
sound into the soft rough plaster. For this
reason. nG more Vt the trst ccat OF rough
plaster ought to be laid Oh at time Tran
what can be Immediately FOLLOWED with
the second layer OF laths.
The laths of the second layer ought tol
be laid As close to each other as they cauI
be, to allow props, clench Tor The rough
plaster, The !aihs of the second layer
may then be plsstered over with a coat Of
the same kind Of rough plaster, or it ma
be plastered in the usual manner.
Sd. lSTER.sEcURING,
Is applicable to the same parts Of al
building as the EXTRA LATHINe, and isl
similar IN most respects TO that of under
ilosring; but no sand is to laid upon it.
Ii is not often necessary to be made use
Of.
tA.I
Tie Recipe for makiRs the Rough Pas