U.S. patent application number 10/692051 was filed with the patent office on 2005-04-28 for slopped roof flashing system and method of use.
Invention is credited to Mares, Manuel.
Application Number | 20050086873 10/692051 |
Document ID | / |
Family ID | 34522012 |
Filed Date | 2005-04-28 |
United States Patent
Application |
20050086873 |
Kind Code |
A1 |
Mares, Manuel |
April 28, 2005 |
Slopped roof flashing system and method of use
Abstract
A flanged counter flashing unit, flashing system and method is
described for weather proofing the juncture of a brick wall
overlying a vertical parapet wall and the edge of a sloped roof.
The one-piece counter flashing unit of the flashing system has a
vertical slit into which is securely fitted the low upstanding side
of a J-Channel flashing positioned at the juncture and the vertical
leaf member of an L-shaped roof flashing that is flush with the
outer face of the upstanding low side of the J-Channel flashing,
including a flange section of the counter flashing unit that
extends laterally from the top edge of the counter flashing apron
and partially over the J-Channel and an apron adapted for overlying
the vertical leaf member of the L-shaped flashing. The J-Channel
flashing, L-shaped flashing and flanged counter flashing are
included in the flashing system of the present invention. According
to the method of the present invention, when the flashing system is
positioned at the juncture, the brick wall is constructed from
within the J-channel so that the counter flashing flange is
included in the brick wall. This method eliminates the need for a
separate method step of attaching counter flashing to the brick
wall at an angle to the horizontal plane of the brick wall after
its construction by means of a gouge cut across the brick wall for
that purpose.
Inventors: |
Mares, Manuel; (Anna,
TX) |
Correspondence
Address: |
PATRICK J. GLYNN
5818 EAST UNIVERSITY BLVD.
No. 129
Dallas
TX
75206
US
|
Family ID: |
34522012 |
Appl. No.: |
10/692051 |
Filed: |
October 24, 2003 |
Current U.S.
Class: |
52/58 |
Current CPC
Class: |
E04D 13/1478
20130101 |
Class at
Publication: |
052/058 |
International
Class: |
E04D 001/36 |
Claims
What is claimed is:
1. An interfitting roof transition flashing system for installation
to a building at a juncture between a vertical masonry wall and an
edge of a slopped roof comprising: a J-Channel flashing and a
one-piece flanged counter flashing, said J-Channel flashing having
a high upstanding side and a low upstanding side that are separated
by a pan section forming a channel for constructing a vertical
masonry wall from within said channel, said flanged counter
flashing having an apron adapted to overlie the vertical leaf
section of an L-shaped roof flashing that is positioned at the edge
of said slopped roof and flush with the outer face of said low side
of said J-channel flashing and a flange extending generally
laterally from the upper edge of said apron and partially over said
J-Channel, said flange being turned downwardly upon itself in the
manner of a hairpin to form a lip from which a vertical planar
section extends downwardly in substantially parallel and spaced
relationship to said apron forming a slit there between, so that
when said roof transition flashing system has been installed said
low side of said J-Channel flashing and vertical leaf section of
said L-shaped roof flashing are securely fitted inside said
slit.
2. The interfitting roof transition flashing system of claim 1
wherein said apron terminates with an obtusely angled flange bent
in the direction of said vertical leaf section of said L-shaped
roof flashing.
3. The interfitting roof transition flashing system of claim 1
wherein the interior of said J-Channel flashing is coated with a
polymeric material.
4. The interfitting roof transition flashing system of claim 1
wherein said vertical masonry wall is composed of brick and
mortar.
5. A method of counter flashing a vertical leaf section of an
L-shaped roof flashing positioned at the juncture between the edge
of a slopped roof and a vertical masonry wall and flush with the
outer face of the low upstanding side of a J-Channel flashing,
eliminating the need for cutting into the masonry wall and
attaching counter-flashing to overlie said vertical leaf section
after construction of the masonry wall, which comprises:
interfitting said J-Channel upstanding low side and said vertical
leaf section with a one-piece flanged counter flashing in order to
overlie said vertical leaf section prior to construction of said
masonry wall, said counter flashing having an apron adapted to
overlie said vertical leaf section and a flange extending generally
laterally from the upper edge of said apron and partially over said
J-Channel, said flange being turned downwardly upon itself in the
manner of a hairpin to form a lip from which a vertical planar
section extends downwardly in substantially parallel and spaced
relationship to said apron forming a slit there between, so that
said low upstanding side of said J-Channel flashing and vertical
leaf section of said L-shaped roof flashing are securely fitted
inside said slit prior to construction of said masonry wall; and
constructing said masonry wall from within said J-Channel and
including said flange as an integral component of said masonry
wall.
6. The method of claim 5 including coating the interior of said
J-Channel flashing with a polymeric material prior to
installation.
7. The method of claim 5 including an obtusely angled flange bent
in the direction of the vertical leaf section of said L-shaped roof
flashing at the terminus of said apron.
8. The method of claim 5 wherein said masonry wall is composed of
brick and mortar.
9. A one-piece counter flashing adapted for interfitting with the
low upstanding side of a J-Channel flashing and a vertical leaf
section of an L-shaped roof flashing that is flush with the outer
face of said low upstanding side of said J-Channel flashing for
application to the juncture between a vertical masonry wall and the
edge of a slopped roof comprising: an apron adapted to overlie said
vertical leaf section and a flange extending generally laterally
from the upper edge of said apron, said flange being turned
downwardly upon itself in the manner of a hairpin to form a lip
from which a vertical planar section extends downwardly in
substantially parallel and spaced relationship to said apron
forming a slit there between, so that when said one-piece counter
flashing has been installed said J-Channel flashing low side and
said vertical leaf section are securely fitted inside said slit and
said flange extends partially over said J-Channel flashing.
10. The one-piece counter flashing of claim 9 wherein said apron
terminates with an obtusely angled flange bent in the direction of
the vertical leaf section of said L-shaped roof flashing.
11. The one-piece counter flashing of claim 9 wherein said vertical
masonry wall is composed of brick and mortar.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention relates to a flashing system using a
novel counter flashing and method adapted for use in buildings in
order to weather proof the juncture between a slopped roof and a
vertical parapet wall of masonry material. A gable, for example,
has two vertical parapet walls extending from the surface of a
sloped roof forming a sloping juncture between each vertical wall
of the gable and its corresponding edge of the sloped roof. It is
imperative to seal this juncture from moisture that can penetrate
the framework of the building resulting in the accumulation of
moisture contributing to mold growth and decay of the framework.
The use of roof transition flashing is therefore required.
Specifically, the present invention relates to so-called brick on
wood applications where the vertical parapet wall is covered with a
masonry wall preferably of brick and mortar forming a brick
veneer.
[0002] In the conventional method, the brick wall is constructed
from the channel of a one-piece J-channel flashing shaped like a
squared "J". The channel has two upstanding sides, one higher than
the other, separated by a bottom or pan section forming the
one-piece channel. The J-Channel flashing is positioned at the
juncture of the parapet wall and the slopping deck of the roof so
that the upstanding high side of the J-Channel is flush with the
parapet wall, the pan or bottom is flush with the slopping roof
deck and the upstanding low side of the J-channel is rising from
the slopping deck, standing alone and opposite the upstanding high
side of the J-Channel. The purpose of constructing the brick wall
from within the J-Channel is to direct moisture that has seeped
through the brick veneer into the J-channel and away from the roof
by force of gravity, utilizing the slop of the roof for this
purpose. In order to protect the underlying parapet wall from
seeping moisture, a cavity is provided between the brick veneer and
underlying parapet wall so that moisture seeping through the brick
wall flows down into the channel that acts like a gutter, directing
water away from the building and protecting the juncture and
parapet wall from exposure to the elements.
[0003] A roof flashing is also usually provided that is L-shaped,
having a vertical leaf section that is flush with the outer face of
the low side of the J-Channel flashing and a horizontal section
that is positioned underneath the roof covering material in order
to channel water that has seeped into the edge of the roof covering
material away from the roof, and to protect the roof deck from
exposure from moisture. When shingles are used to cover a slopping
roof, single pieces of L-shaped step flashing are frequently
employed, the horizontal sections being sandwiched between adjacent
layers of overlapping shingles from top to bottom of the slopped
roof. Therefore, when the brick wall is built-up from within the
J-Channel there are two upstanding sections of exposed flashing
protruding from the roof surface at the juncture of the brick wall
and the edge of the roof covering material: the vertical low side
of the J-Channel flashing and the vertical leaf section of the
L-shaped flashing. Both are flush with each other and flush with
the base of the brick wall. Counter flashing, therefore, must be
employed to protect these exposed flashing sections from exposure
to rainwater and moisture.
[0004] In the case of flat roof and brick wall transitions, the
juncture of the brick wall and flat roof edge lies on a horizontal
plane, so that the counter flashing can be attached directly to the
same mortar joint between adjacent layers of bricks extending over
the entire length of the juncture. This is accomplished by laying
an anchor along one such horizontal mortar joint during
construction of the brick wall, providing a means for attachment of
a counter flashing apron following construction of the brick wall.
In this instance, a two element counter flashing system is
employed. This system, however, is not suitable in the case of
slopped roof transitions because the brick wall and roof edge
juncture lies at an angle to the bricks instead of on a horizontal
plane parallel to the layout of the bricks. Because the counter
flashing must be parallel to the slopping juncture in order to
provide effective counter flashing for the low side of the
J-Channel and vertical leaf section of the L-shaped roof flashing,
the completed brick wall or veneer must be gouged in parallel
relationship to the slope of the roof and the counter flashing
attached and sealed in the gouge with extraneous material, such as,
adhesive sealant. There are disadvantages, however, that are
associated with this method of counter flashing. First, the gouge
in the brick wall, although critical for proper attachment of
counter flashing, is frequently crude where cutting is performed
through disparate densities of brick and mortar. Also, an adhesive
sealant must properly be introduced into the gouge or grove to
secure and protect against moisture penetration and for secure
attachment of the counter flashing anchor. Furthermore, this
procedure extends the time for completing installation of all
flashing, the construction of the brick wall falling between
installation of the initial flashing, including J-Channel and
L-shaped roof flashing, and completion of the job by attaching the
counter flashing to the brick wall after its construction. This
requires the return of the flashing artisan to the job site. As a
result, additional labor and material costs are incurred. The
possibility also exists that attaching the counter flashing anchor
and sealing it in the gouge or grove of the brick wall is performed
improperly, creating an opportunity for moisture penetration into
the brick wall.
SUMMARY OF THE INVENTION
[0005] The object of the present invention, therefore, is to
eliminate the need for the added step of installing counter
flashing after construction of the brick wall. It is therefore an
object of the present invention to save labor and material costs in
the installation of transition flashing for slopped roofs common to
many residential structures. According to the present invention,
this is accomplished by interfitting specific sections of the
J-Channel and L-shaped roof transition flashing with a counter
flashing adapted for this purpose before constructing the brick
wall. It is therefore an object of the present invention to have
all necessary flashing in place prior to starting construction of
the brick wall. Accordingly, a one-piece counter flashing with a
flange section and a slit is provided so that the brick wall can be
built from within the J-channel to include the flange section in
the brick wall. The exposed transition flashing sections, such as,
the low J-channel side and vertical leaf of the L-shaped roof
flashing are securely fitted in the slit of the counter flashing of
the present invention and thus protected from exposure. The present
invention also includes a method of installing flashing that
eliminates the necessity of gouging the brick wall and installing
and sealing an anchor in the gouge for removable attachment of the
counter flashing apron.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a perspective view of the flashing system
according to the present invention.
[0007] FIG. 2 is a perspective view of the one-piece counter
flashing according to the present invention.
[0008] FIG. 3 is a cross-sectional view of the one-piece flanged
counter flashing according to the present invention.
[0009] FIG. 4 is a cross-sectional view of the flashing system and
brick wall under construction.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE
INVENTION
[0010] Referring to FIG. 2 and FIG. 3, the one-piece counter
flashing 10 of the present invention has a flange 16 extending
laterally from the top edge 14 of the apron 12. As shown, the
flange 16 is turned downwardly upon itself in the manner of a
hairpin to form a lip 18 from which a vertical planar section 20
extends downwardly in substantial parallel and spaced relationship
to the apron 12 forming a slit 24. As shown in FIG. 4, the counter
flashing 10 is adapted for interfitting with a J-Channel flashing
26 and L-shaped roof flashing 36a. Specifically, as shown in in
FIG. 4, the vertical leaf section 38a of the L-shaped roof flashing
36a is positioned flush with the outer face of the low side 30 of
the J-Channel flashing 26. Both low side 30 and vertical leaf
section 38a are securely fitted in the slit 24 so that the apron 12
overlies the vertical leaf section 38a protecting the vertical leaf
section 38a and low side 30 from exposure to rain water. Moreover,
as shown in FIG. 4, the horizontal section 40a of the L-shaped
flashing 36a protects the roof deck 42 against any moisture seeping
into the comer of the L-shaped flashing 36a below the indented
flange 22. Accordingly, a lip 62 at the terminus of the horizontal
section 40a is provided in order to trap such moisture and insure
that such moisture will run off in the space 64 between the roof
covering material and the horizontal section 40a. It is noted that
the L-shaped roof flashing 36 shown in FIG. 1 is a plurality of
step flashing units, the vertical leaf sections 38 protruding above
the edge of the shingles 56 while the underlying horizontal
sections 40 are sandwiched between adjacent layers of shingles 58
from top to bottom of the slopped roof 48. The L-shaped roof
flashing 36 can also fabricated to form the single unit of L-shaped
flashing 36a in FIG. 4, extending the length of the juncture,
having a continuous vertical leaf section 38a upstanding at the
edge of the roof covering material 44 and a continuous horizontal
section 40a positioned between the roof covering material 44 and
roof deck 42.
[0011] Once the flashing units are in position and fitted together,
the system according to the present invention is complete and
construction of the brick wall can begin. The wall is built up from
within the J-channel 28 as shown in FIG. 4, forming a brick veneer
over the underlying parapet wall 50, usually made of framed wood
covered by protective sheathing 52. As shown therein, the flange 16
is included between layers of bricks 46 in the wall during its
construction. A cavity 54 is provided extending vertically from
within the J-channel 28 between the bricks 46 and the parapet wall
50, so that moisture that has seeped through the brick veneer can
migrate down the interior of the veneer inside the cavity 54 to the
surface of the pan section 34 of the J-channel 28. The J-Channel 28
therefore serves as a gutter allowing moisture to run off due to
the slope of the roof 48. The J-channel 28 itself is formed by the
high side 32 of the J-Channel flashing 26 flush with the parapet
wall 50, and the low side 30 separated by the pan section 34 that
forms the bottom section of the J-channel 28. As shown in FIG. 4, a
flange 60, extending from the top edge of the low side 30 at an
angle to the outer face of the low side 30 and over the vertical
leaf section 38a is provided to guard against migrating moisture.
Specifically, the flange 60 guards against moisture that has seeped
into cavity 54 and downward into J-Channel 28 from migrating from
the J-channel 28 to the interface between the outer face of the low
side 30 and the vertical leaf section 38a that is flush with the
low side 30.
[0012] In the initial construction of the masonry wall from within
the channel 28, the bricks 46 must be mitered to account for the
angle of the slopped roof 48 because the brick wall is constructed
on a horizontal plane as shown in FIG. 1. When the brick wall has
been constructed, only the apron 12 of the one-piece counter
flashing 10 is visible and aesthetically pleasing.
[0013] Each unit of flashing system of the present invention is
preferably made from fabricated sheet metal that is cut, bent,
folded and shaped accordingly. The counter flashing 10 of the
present invention is preferably made of one piece of sheet metal,
although other suitable material can be used. The interior of the
J-Channel flashing 26 and J-Channel 28 is preferably coated with a
polymeric material, such as, a commercially available rubber-based
material known as "Carsile" to protect against mold growth.
[0014] According to the method of the present invention, the
separate step of installing the counter flashing after the brick
veneer has been constructed is eliminated by assembling and
installing all flashing units comprising the system of the present
invention before beginning construction of the brick veneer, thus
avoiding the necessity of gouging the veneer to form a groove for
attaching the counter flashing. This is accomplished by the flanged
counter flashing 10 and slit 24 specifically fabricated for fitting
with the J-Channel flashing 26 and L-shaped roof flashing 36. When
properly positioned, the flange section 16 will extend partially
over the J-Channel 28 as shown in FIG. 1 and FIG. 4 to be included
as an integral component in the brick veneer.
[0015] The invention has been described with reference to the
preferred embodiment. Obviously, modifications ans alterations will
occur to others upon reading and understanding the preceding
detailed description. It is intended that the invention be
construed as including all such modifications and alterations
insofar as they come within the scope of the appended claims or the
equivalents thereof.
* * * * *