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Патент USA US2112936

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April s, 1938.
H, SWAY
2,112,936
SHEET METAL FLASHING
Filed Dec. ll, 1936
INVENTOR.
Afa/ffy Sway
Patented Apr. 5, 1938
2,112,936
UNITED STATES PATENT OFFICE
2,112,936
SHEET METAL FLASHING
Henry Sway, Cincinnati, Ohio
Application December 11, 1936, Serial N0. 115,307
8 Claims.
’I‘his invention relates to an improved sheet
surface of the wooden panel I, then extends
metal flashing formed so as to make a new type
down around the end or side of the wooden panel,
stucco guard such as may be used by the build
to the sheathing 2, thence at right angles away
from the wooden panel flush with, and across
ing trades for securing a Weathertight joint
wherever it is desired or necessary to have stucco,
or similar cementitious material, tightly abut
wooden surfaces.
Another object of this invention is to provide
an improved type of flashing which will prevent
the shrinkage of stucco away from abutting
wooden structures as the stucco dries out, and/or
prevent the cracking which occurs when wood
(green) dries out and pulls away from the abut
ting stucco.
Another object of this invention is to provide
a new means of conducting away moisture which
the sheathing 2 for a short distance. A key ef
fect is obtained by an outwardly extending rib
33 formed or bent in the sheet metal and pro
r.
jecting at an angle to the sheathing and dis
posed substantially parallel to the wooden panel I.
The sheet metal is then extended angularly back lí)
lto the sheathing 2 and thence along for a short
distance flush with the sheathing. The end of
the metal flashing 3 may abut the lath 4, which
is fastened to the sheathing 2 in any manner
common in the art.
The metal flashing may be fastened to the
wooden panel I or to the sheathing 2, or to both,
would otherwise be absorbed by the stucco mass
as well as the wooden paneling, and which
oftimes will seep into the inner plaster of a room
by means of nails or small screws.
spoiling it as well as the wallpaper on it.
The ease with which this new type flashing
it will completely lill up the space outside the., 20
metal flashing as well as the space in and around
may be adapted to fit any shape opening or other
type of flt where stucco and wood are to abut
will be readily seen.
The foregoing and other objects are attained
by the means described herein and disclosed in
the lath, so that when'drying occurs a key ar
the accompanying drawing, in which:
Due to the design of the metal flashing, the
stucco on drying will be tightly wedged and held
Fig. l is a perspective view of a gable embody
ing the present invention.
Fig. 2 is a cross-sectional view taken on the
line 2_2 of Fig. 1.
Fig. 3 is a View similar to Fig. 2 and showing a
modified form of .the invention.
Fig. 4 is a View similar to Fig. 2 and showing
another modified form of the invention.
The present invention is directed to improving
the methods employed by the building trade in
butt joining stucco panels with Wooden panels
by means of an improved sheet metal flashing.
Referring to Fig. 2, character I represents a
cross-sectional view of a wooden panel, character
2 indicates the wooden sheathing used by the
building trade as a base for the exterior surface
of a building. It is to be understood that the
- customary weatherproof paper, furring and metal
or other lath may be used beneath and for affix
ing the stucco, however, same are not shown in
detail inasmuch as they are but incidental and
commonly understood factors, the illustration of
which is not necessary for understanding the
present invention.
Character 3 represents the sheet metal flash
ing in position as a guard and comprises base 3D,
outside flange 3I and side or intermediate sec
tion 32. Said metal guard is ñtted over the outer
When plastic stucco is applied to this surface,
rangement will be formed with the metal flash
ing. It is .to be understood that the rib 33 may
be perforated to thus provide a key for the¿_ 25
plastic.
in place by the key elïect of the bottom part of
the flashing, and therefore the usual tendencyy 30
of the stucco to pull away will be greatly lessened,
and further, the usual shrinkage of stucco from
wood will be greatly diminished because by the
use of this flashing the stucco is placed in con
tact with sheet metal for which it has great. .
aflinity, instead of in contact with the wood pan
eling itself.
Attention is directed to the fact that should
some shrinkage occur between the stucco and the
tight
metallic
weatherproof
surface of seal
the around
flashing,
thethere
wooden
is still
panel
extending down around the side of the panel,
around under .the stucco over to the lath. There
fore, should moisture or any of the other ele
ments be driven into this opening, the injuriousy
action of said elements is stopped by the metal
flashing.
In the event that rain would come in through
.the opening between the metal flashing and the
stucco, it will be conducted away by means of
the trough formed by the metal ñashing and
thereby it will afford an effective means of drain
age for the abutting stucco paneling.
Fig. 3 shows a modification of the metal flash
ing guard just described. 'I‘he modification liesI` 55
2
2,112,936
in the method of anchorage to the wooden panel
Having thus described the invention, what is
I I, as well as to the method of anchoring the end
of the flashing guard abutting the latch. A lip
I6 is bent along the edge of the sheet metal
flashing which ñts into groove I1 which is cut
into the wooden panel to accommodate it. The
metal ñashing is then brought across the outer
face of the wooden panel and thence down at
claimed is:
1. 'I'he combination with a building comprising
sheathing, means of the class of lath for sup
right angles flush against the side of the sheath
ing I8, thence for a short distance across on the
sheathing before being bent back over itself at
an angle approximating l35 degrees with the
sheathing, where it is terminated. This end is
securely held in place by means of a metal cleat,
I9 which abuts the lath 20. The advantage of
this type flashing guard lies in the fact that
there is a positive lock formed between the ñash
ing and the outer surface of the wooden paneling.
Fig. 4 illustrates another modification of the
20 two flashing guards just described, the distinc
tion being primarily in that the metal flashing
is anchored in the side of the wooden panel 2|,
below the surface of the stucco when put on. In
this manner the flashing is concealed from sight,
25 and cannot be detected from the outside. The
metal flashing 23 is bent so as to form a lip 24
which fits into groove 25 which is cut in the side
of panel 2|. This groove is cut so as to be below
the outer surface line of the stucco in its com
30 pleted form. The metal flashing guard is then
bent at right angles so as to be flush with the
side of panel 2I and continued down to the
sheathing 22. It is then bent at right angles
back so as to» fit flush with the sheathing for a
short distance to the key formation 26 which is
formed by bending the flashing back over itself
at an angle approximating 135° with the sheath
ing, but it is not terminated here as in Fig. 3,
but is then bent back on itself down to the
40 sheathing 22 which it parallels and is iiush with
a short distance to abut the lath, where it
terminates.
In use the ends of these metal flashing guards
will be so connected at the joints as to make a
45 weather-proof seal, and although kthe building
trade has for a number of years been accustomed
to provide water-tables wherever water would
soak in over door frames, window frames, etc.,
this metal flashing guard provides a water-table
50 effect all around the joints wherever stucco and
wooden paneling are to butt, and further it
provides a tight mechanical bond on all surfaces
heretofore unprotected.
In those instances where the metal flashing is
55 exposed to the elements, it may be made of cop
per or of galvanized sheet metal or other sheet
metal and painted.
Wherever the term “wooden panel” is used, it
60 is meant to include and embrace all instances
where stucco, or similar building substances, is
to abut wood trim or wooden work such as is
found around Window frames, door frames` and
the like and also to include, all cases where deco
65 rative paneling (wooden) is to abut stucco work.
Whether the wooden panels are flush with the
stucco panels, or whether they extend out from
the stucco panels a short distance is immaterial.
By carefully considering the description in
70 connection with the drawing, a clear under
standing of the construction and application will
be obtained.
Changes in shape, size and rearrangement of
details coming within the field of invention may
be resorted to in actual practice if desired.
porting a cementitious mass over the sheathing, 5
and trim exposed in part to the elements and
having a portion disposed adjacent the sheath
ing whereby to there provide a joint, of metal
flashing extending over said joint, the edge of
the iiashing adjacent the trim having element
excluding contact with the trim and the portion
of the flashing adjacent its otherv edge having a
key forming rib therein for locking cementitious
material to the iiashing.
2. In a building comprising sheathing, means
of the class of lath for receiving and supporting
a cementitious covering material for the sheath
ing, and trim exposed in part to the elements and
so related to the sheathing whereby to provide a
joint along the trim, the combination with the
trim and the sheathing of fiashing extending
along the trim and having one of its longitudi
nal edges in contact with the trim and extending
over said joint for excluding the elements from
said joint, the opposite longitudinal edge of the 25
flashing being secured to the sheathing, said
flashing having a key forming rib extending be
tween its said edges and disposed over the sheath
ing for receiving and locking cementitious ma
terial over that portion of the iiashing extending 30
over said joint.
,
3. The combination with a building compris
ing sheathing, means of the class of lath for re
ceiving and supporting a cementitious mass over
the sheathing, and trim exposed in part to the
elements and having a portion disposed adjacent
the sheathing whereby to there provide a joint, of
a sheet metal iiashing having an external trim
contacting flange ‘and internal sheathing con
tacting flange which houses a key forming rib 40
whereby cementitious material is locked relative
to the flashing, and an intermediate leg extend
ing between the trim contacting ñange and
sheathing contacting ñange whereby an element
excluding joint is obtained between the trim, 45
cementitious mass and sheathing.
4. In combination with a building comprising
sheathing, means of the class of lath for receiv
ing and supporting a cementitious mass over the
sheathing, and trim exposed in part to the ele
ments and so related to the sheathing whereby
to provide a joint along the trim, the combina
tion with the trim and sheathing of flashing com
prising a base element which houses a key form
ing rib extending over the sheathing for receiv 55
ing and locking cementitious material over that
portieri of the iiashing adjacent said joint, a side
element disposed at right angles to said base ele
ment and separating the cementitious material
from the trim along the line of jointure, and an 60
outer member bent at right angles to the side
member over the trim terminating in contact
therewith whereby a weather excluding joint is
formed between the trim, cementitious material
and sheathing.
65
5. 'I'he combination with a building comprising
sheathing, means of the class of lath for sup
porting a cementitious mass over the sheathing
and trim exposed in part to the elements and
having a portion disposed adjacent the sheathing 70
whereby to there provide a joint, of a sheet metal
flashing comprising an outer face flush with the
exposed face of the trim boards, a central portion
having a configuration in similitude'of the joint
between the trim and cementitious material and 75
_ 2,112,936
extending therebetween, and a base member iiush
with the sheathing adjacent the joint under the
cementitious material housing a key forming rib
for receiving and locking cementitious material
in place relative to the joint formed with the
trim.
6. The combination with a building comprising
sheathing, means of the class of lath for sup
porting a cementitious mass over the sheathing
and trim exposed in part to the elements and
having a portion `disposed adjacent the sheathing
whereby to there provide a joint, of a sheet metal
flashing formed to lap over the outer side of the
trim board, extend inward to the sheathing be
tween the trim and cementitious material adja~
cent thereto, thence at right angles extending
across ñush with the sheathing under the ce
mentitious material, and means whereby the ce
3
between the trim and cementitious material a dis
tance less than the thickness of trim boards, and '
a trim locking lip bent at right angles to said
side member engaging a complementary groove
cut in the end face of the trim whereby a Weather
excluding joint is secured between the trim, ce
mentitious material and sheathing.
8. The combination with a building comprising
sheathing, means of the class of lath for sup
porting a cementitious mass over the sheathing
and trim exposed in part to the elements and
having a portion disposed adjacent the sheath
ing whereby to there provide a joint, of a sheet
metal flashing having a trim contacting flange
terminating in a trim locking lip bent at right
angles to the ñange face and engaging a com
plementary groove cut into the outer face of the
trim, an intermediate member disposed at right
mentitious material is locked in place relative to
angles to the trim contacting flange extending
the joint and supporting sheathing.
inwardly between the end face of the trim and 20
cementitious material down to the sheathing, a
base member disposed at right angles to said in
termediate member extending across-and flush
with the sheathing under the cementitious materia] adjacent the joint and terminating in a 25
lip to receive and lock the cementitious material
'7. In combination with a building comprising
sheathing, means of the class of lath for receiv
ing and supporting a cementitious mass over the
sheathing, and trim exposed in part to the ele
ments and so related to the sheathing whereby
to provide a joint along the trim, the combination
with the trim and sheathing of ñashing compris
ing a base element which houses a key forming
rib extending over the sheathing for receiving
30 and locking cementitious material over that por
tion of the flashing adjacent said joint, a side
member disposed at right angles to said base
member extending outward from the sheathing
formed by bending.back the base member on it- ’
self at an angle greater than a right angle, and
means for anchoring said lip to the sheathing
whereby a weather-tight joint is secured be- ,
tween the trim, Vcementitious material and
sheathing.
HENRY SWAY.
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