U.S. patent number 3,740,911 [Application Number 05/130,908] was granted by the patent office on 1973-06-26 for brick veneer wall construction.
Invention is credited to James D. O'Leary.
United States Patent |
3,740,911 |
O'Leary |
June 26, 1973 |
BRICK VENEER WALL CONSTRUCTION
Abstract
A brick wall construction formed of a series of panels secured
to a wall surface. Each panel including a backing strip of open
construction, such as expanded metal mesh, and a series of rows of
thin bricks are bonded to the mesh by a resin adhesive. Ends of
bricks in alternate rows project beyond the side edge of the
backing strip while the corresponding ends of bricks in rows
between the alternate rows are positioned generally flush with the
side edge of the strip so that the area between the projecting
alternate bricks provide a space to receive the projecting end of a
brick of the next adjacent panel. The panels are secured to the
wall surface by fasteners which extend through the backing strip
between the bricks, and after installation, the joints between the
bricks are filled in with grout.
Inventors: |
O'Leary; James D. (Mequon,
WI) |
Family
ID: |
22446921 |
Appl.
No.: |
05/130,908 |
Filed: |
April 5, 1971 |
Current U.S.
Class: |
52/388;
52/391 |
Current CPC
Class: |
E04F
13/0862 (20130101) |
Current International
Class: |
E04F
13/08 (20060101); E04f 013/14 () |
Field of
Search: |
;52/388,389,390,391,314,315 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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|
|
|
|
291,256 |
|
May 1928 |
|
GB |
|
367,392 |
|
Jan 1939 |
|
IT |
|
Primary Examiner: Perham; Alfred C.
Claims
I claim:
1. A building panel, comprising a flexible backing strip having a
series of openings therein, an adhesive bonded to a surface of the
backing strip and disposed within the openings in the strip, and a
plurality of bricks bonded to the adhesive and located in a series
of spaced, generally parallel rows, the spaces between the bricks
in adjacent rows being substantially free of adhesive to thereby
provide flexibility for the panel to conform to wall surfaces, a
brick in each row having an extremity that projects outwardly
beyond the corresponding side edge of the backing strip, said strip
being elongated and the longitudinal dimension of the strip being
disposed normal to the longitudinal dimension of the bricks and the
longitudinal dimension of the bricks being substantially greater
than the width of the strip.
2. The panel of claim 1, wherein said bricks have a thickness in
the range of 1/2 to 1 1/8 inches.
3. The panel of claim 1, wherein the corresponding ends of the
bricks in alternate rows project outwardly beyond side edges of the
backing strip and the corresponding ends of the bricks in
intermediate rows between said alternate rows terminate in general
alignment with said side edge of the backing strip.
4. The panel of claim 1, wherein each row is composed of a single
brick and one end of each brick projects laterally outward beyond
the corresponding side edge of the backing strip and the other end
of each brick is disposed in general alignment with the opposite
side edge of the backing strip.
5. The panel of claim 4, wherein the ends of bricks in alternate
rows project outwardly beyond a side edge of the backing strip and
the opposite ends of bricks in intermediate rows project outwardly
beyond the opposite side edge of the backing strip.
6. The panel of claim 1, wherein the backing strip is formed of
expanded metal.
7. The wall construction of claim 1, wherein the corresponding ends
of bricks in said rows project outwardly beyond the corresponding
side edge of the backing strip and said projecting ends are
disposed in alignment, whereby the panel can be applied to an
exterior corner of a wall.
Description
BACKGROUND OF THE INVENTION
Brick and stone veneer walls are normally supported by footings
which extend down beneath the frost level and the brick or stones
are laid up with mortar joints. This type of wall construction is
relatively expensive because of the requirements for footings and
due to the necessity of individually laying up each brick or stone
with mortar. In the past pre-cast panels having exposed stone or
aggregate surfaces have been used for exterior or interior walls,
and while the precast panels can be used without footings, the
panels are generally set into a horizontal mortar bed and after
setting of the mortar the panel is erected. Due to the weight of
the pre-cast panels, expensive erecting equipment is required to
erect and secure the panels to the existing walls.
Attempts have also been made to provide brick veneer walls without
the use of supporting footings. For interior use, simulated brick
panels including lightweight molded plastic bricks have been
utilized. However, panels of this type are limited to interior use
and do not present the attractive appearance of authentic brick.
Attempts have also been made to fabricate panels utilizing thin
clay-type bricks, but for the most part these panels have been
relatively large, having a width of perhaps 4 to 8 feet, and
normally require mechanical erecting equipment to install and
secure the panels to the existing walls.
The walls of any building are not precisely plumb, and while
individual bricks can be laid by conventional masonry techniques to
compensate for the irregularities in the plumb of the wall, with
the use of large, pre-formed brick panels any deviation from plumb
in the wall surface is readily apparent at the joints between the
panels.
SUMMARY OF THE INVENTION
The present invention is directed to a wall construction for either
exterior or interior use which is composed of a series of
interlocking brick panels. Each of the panels includes a backing
strip of foraminous material, such as expanded metal mesh, and a
series of rows of thin bricks are bonded to the backing strip by a
resin adhesive. The ends of bricks in every other row project
beyond the side edge of the backing strip, while the corresponding
ends of bricks in intermediate rows are generally flush with the
side edge of the strip so that areas are provided between the
alternate projecting bricks which receive the projecting ends of
bricks in the next adjacent panel.
The panels are secured to the wall surface by fasteners, such as
nails or screws, which extend through the backing strip in the
joint between bricks, and after installation of a series of panels
on the wall surface, the joints between the bricks are filled in
with grout so that the resulting structure is virtually
indistinguishable from a conventional brick veneer wall.
The wall construction can be applied to a vertical wall surface
without the requirement for expensive footings. Moreover, the
completed wall construction is relatively light in weight compared
to a normal brick veneer wall. The installation of the decorative
wall of the invention is a comparatively fast operation as compared
to traditional masonry methods of wall construction and this
results in a substantial time and labor savings.
The wall construction of the invention can be used on either
interior or exterior walls and can be applied to concrete block
walls, poured concrete walls, plaster walls, wood panelled walls,
wood or metal stud walls, and has particular application in
covering existing porcelain enamel walls during remodeling of
service stations.
As the bricks have a thickness generally about three-fourths inch,
the wall provides a true three-dimensional effect which has the
appearance of a conventional brick veneer wall.
Other objects and advantages will appear in the course of the
following description.
The drawing illustrate the best mode presently contemplated of
carrying out the invention.
In the drawings:
FIG. 1 is a plan view of a wall utilizing the construction of the
invention with parts broken away in section;
FIG. 2 is a plan view of a portion of a wall having a brick panel
applied thereto;
FIG. 3 is a vertical section taken along line 3--3 of FIG. 2;
FIG. 4 is a plan view of an end butt panel in which the panel is
butted against a frame member; and
FIG. 5 is a plan view showing the manner of fabricating a brick
panel.
The drawings illustrate a wall construction fabricated in
accordance with the invention and including a vertical wall 1 which
can be composed of a series of spaced vertical studs 2 and
wallboard or sheathing 3 is nailed or otherwise attached to the
studs 2. While the drawings illustrate the wall 1 as being formed
of a stud and wallboard construction, it is contemplated that the
wall can be formed of other materials, such as poured concrete,
concrete block, plastic, wood panelling, porcelain enamel panels,
or the like.
According to the invention, a series of panels 4 are secured to the
wall 1 and each panel includes a backing strip 5 of perforated or
foraminous material. A series of thin bricks 6 are secured to the
backing strip 5 in a series of rows by a layer of adhesive 7.
The backing strip 5 is preferably formed of expanded metal lath or
mesh with the maximum dimension of the holes of the lath being less
than one inch and preferably in the range of one-fourth to
three-fourths inch. Expanded metal lath having diamond-shaped
openings with the size of 1/4 .times. 5/8 inch provides a very
satisfactory backing strip 5.
The bricks 6 are preferably standard clay-type bricks having a
thickness generally in the range of 1/2 to 11/8 inches with a
thickness of about three-fourths inch being preferred. While the
wall construction is preferably utilized to fabricate a brick
veneer wall, other objects can be substituted for the bricks, such
as pieces of marble, slate, glass, metal, stone, or the like.
The adhesive layer 7 is a mixture of cured polyester resin, a
granular or finely divided filler and asbestos fibers as disclosed
in U.S. Pat. No. 3,435,577. In general, the adhesive composition
has the following formulation in weight per cent:
Polyester resin 20 to 60% Filler 35 to 75% Asbestos fibers 3 to
15%
The filler can be any conventional finely divided material such as
sand, clay, granulated marble, pearlite, sawdust, or the like,
The abestos fibers provide reinforcement and lubricity for the
adhesive and generally have a length less than one-half inch and
preferably in the range of one-eighth to one-fourth inch.
As shown in the drawings, each brick 6 has a length substantially
greater than the width of the strip 5 so that the ends of the
bricks in each alternate row project outwardly beyond the
corresponding side edge of the backing strip, while the
corresponding ends of the bricks in intermediate rows are generally
flush with the side edge of the backing strip 5. Thus, the
projecting ends of the bricks in alternate rows provide pockets or
spaces to receive the projecting ends of bricks of adjacent panels.
When the panels are applied in this manner to the wall 1 the
overall appearance is that of a continuous brick veneer wall.
Extending the ends of bricks in alternate rows beyond the
corresponding side edge of the backing strip enables the panel to
be more readily cut to the desired size and installed. The
projecting ends of the bricks can be cut with a masonry saw or
brick chisel without interference from either the backing strip or
the adhesive layer and this enables the panel to be readily trimmed
to fit around doors, windows, or other obstructions.
As shown in FIGS. 2 and 3, the adhesive layer 7 does not extend
continuously between adjacent bricks, so that the mesh or backing
strip 5 is exposed between the adjacent bricks. This is an
important feature in that the exposed lath or mesh between adjacent
bricks provides flexibility for the panel, enabling the panel to
conform to irregularities in the wall surface. If the adhesive
layer extended continuously throughout the length of the backing
strip 5, the adhesive layer, being of a hard inflexible nature,
would restrict the flexibility of the panel. Furthermore, the panel
is secured to the wall by nails or screws 8 which extend within the
openings in the strip 5 and are located in the joints between
adjacent bricks 6, as shown in FIG. 2.
While the drawings illustrate the panels 4 being composed of single
bricks in each vertical row, it is contemplated that each row may
contain one or more bricks and be several feet in width. The use of
a single brick in each row, as illustrated in FIG. 2, has an
advantage in that it enables the joints between bricks in adjacent
panels to be more readily adjusted or varied in order to compensate
for irregularities in plumb of the wall surface. Using panels
having a substantial width, in the neighborhood of 4 to 8 feet,
would mean that any variations in plumb would have to be
compensated for at the joints between panels and any large
variation in the joint size between panels would be readily
apparent to an observer. Moreover, panels composed of a single
brick in each row, or two or three bricks in each row, are lighter
in weight and can be carried and installed by a single workman.
After the panels 4 have been installed on the wall 1 by the
fasteners 8, the joints between the bricks are filled with grout or
mortar 9. The grout can be applied by trowelling the grout over the
entire brick wall, or alternately by using a mortar gun in which
the grout or mortar is extruded into the joints. When using the
trowelling method, it may be desirable to apply release coat to the
outer surface of the bricks so that the grout will not penetrate
the outer surface of the brick during trowelling. If the grout
penetrates the brick surface it is normally necessary to use an
acid wash to clean the bricks. The release coat can take the form
of a water soluble material such as soap, wax, or the like that can
be readily washed from the brick surface by water or steam after
the grouting has been completed.
To enhance the bonding between the bricks and the adhesive 7, the
rear surface of the bricks can be sand blasted which serves to
remove any dirt, glazing, or foreign materials, as well as
providing a rougher surface to increase the bonding between the
members.
FIG. 4 illustrates a brick wall panel 10 which can be butted
against a frame member 11, such as a door or window frame. The
panel 10 includes a backing strip 12, similar to backing strip 5,
and a series of full bricks 13 and half-bricks 14 are secured to
the backing strip 12 by means of a resin adhesive 15, similar in
composition to adhesive 7. The panel 10 is applied to the wall 1 by
a series of fasteners 16, such as screws or nails, which are
inserted through the openings in the backing strip 12 and into the
wall surface 1.
The projecting ends of the bricks 13 and 14 in each row are in
vertical alignment and can be abutted against the frame member 11.
Wall panels, similar to panels 4, can then be attached to the wall
1 and mated or interlocked with the wall panel 10.
The joints between the bricks can be filled in with grout in a
manner similar to that described with respect to the embodiments
shown in FIGS. 1-3.
FIG. 5 illustrates a method of fabricating the panels 4. As shown
in FIG. 5, a series of bricks 6 are layed face down on a horizontal
supporting surface 17 and a suitable jig or fixture can be employed
to hold the bricks in the desired alignment. With the bricks
properly positioned on the surface 17, the strip of backing
material 5 is applied over the upwardly facing surfaces of the
bricks 6, as shown in FIG. 5. A template 18 having a series of
openings 19 is positioned over the bricks with the openings being
aligned with the bricks. The uncured resin adhesive 7 is then
trowelled over the template 18 and into the openings 19 thereby
penetrating the portion of the expanded metal mesh or backing strip
5 located beneath the openings 19. After adhesive has been
trowelled into the openings 19, the template can be removed and
additional pressure can be applied to the structure to force the
adhesive layer 7 into the openings in the backing strip 5. The use
of the template 18 keeps the ends of the bricks, as well as the
joints between adjacent bricks, free of adhesive.
After setting or curing of the adhesive 7, the panel can then be
installed on wall surfaces as previously described.
The wall construction of the invention can be applied to either
interior or exterior walls without the necessity for footings, and
the resulting wall has the appearance of conventional brick veneer,
although when using the three-fourths inch bricks the weight is
only about one-fourth that of the normal brick veneer wall.
The wall construction can be used in either new or existing
constructions and has particular application in remodeling service
stations, in which the brick panels are applied to the existing
procelain enamel wall surfaces of the station.
The individual panels are relatively light in weight and can be
readily handled and installed by a single workman. The installation
of the wall is a comparatively fast operation compared to the
traditional masonry methods of laying a brick veneer wall and this
results in a substantial labor and time savings.
While the drawings show the panels of the invention applied to a
vertical wall surface, it is contemplated that the panels can be
applied to horizontal surfaces, such as ceilings or floors, or
inclined surfaces, and thus the term "wall" as used in the
description and claims is intended to include any vertical,
horizontal or angular structure or non-structural surface.
While the drawings illustrate two forms of the panel in FIGS. 2 and
4, it is contemplated that various shapes and sizes of panels can
be constructed in accordance with the invention for use on flat
wall surfaces, contoured wall surfaces, interior and exterior
corners, and the like. In some instances it may also be desired to
employ a vertical stacked arrangement in which, instead of the
joints between bricks being offset in each row, as illustrated in
FIG. 1, the joints are in vertical alignment. In the vertical
stacked arrangement both ends of the single bricks in each row can
project beyond the corresponding side edge of the backing strip in
the manner described with respect to the embodiment of FIG. 1.
Various modes of carrying out the invention are contemplated as
being within the scope of the following claims particularly
pointing out and distinctly claiming the subject matter which is
regarded as the invention.
* * * * *