US2639679A

US2639679A - Combination through-wall flashing and receiver for side-wall flashing

Info

Publication number: US2639679A
Application number: US182046A
Authority: US
Inventors: Edward J Finn
Original assignee: Chase Brass and Copper Co Inc
Current assignee: Chase Brass and Copper Co Inc
Priority date: 1950-08-29
Filing date: 1950-08-29
Publication date: 1953-05-26
Anticipated expiration: 1970-05-26

Description

May 26, 1953 E. J FINN 2,639,679 COMBINATION THROUGH-WALL FLASHING AND RECEIVER FOR SIDE-WALL FLASHING Filed Aug. 29, 1950 2 Sheets-Sheet 1 IIIIIIIIFIIIItllllilllllllllllllllllili IEIWIWIW WEI a 'llll May 26, 1953 E. J FINN 2,639,679 COMBINATIQN THROUGH-WALL FLASHING AND RECEIVER FOR SIDE-WALL FLASHING Filed Aug. 29, 1950 '2 Sheets-Sheet 2 ill J da/wad $0 1m Patented May 26, 1953 COMBINATION THROUGH-WALL FLASHING AND RECEIVER FOR SIDE-WALL FLASH- ENG Edward 3. Finn, Naugatuck, Conn., assignor to Chase Brass & Copper 00.

Incorporated,

Waterbury, Conn, a corporation Application August 29, 1950, Serial No. 182,046

1 Claim. 1

The present invention relates to improvements in through-wall flashing, i. e., flashings which are adapted to be extended transversely completely through a masonry wall or parapet to thereby prevent the seepage of water down through the masonry seams. More particularly, the present invention relates to such flashings when constructed so as to provide a pocket or groove to receive one edge of a counter-flashing or side-wall flashing, which latter is sometimes referred to in the art as cap-flashing.

One of the main objects of the present invention is to provide a superior combination throughwall flashing and receiver for side-wall flashing of improved design adapted to conveniently receive one edge of a side-wall flashing or the like.

Another object of the present invention is to provide a superior flashing of the character referred to of such construction and arrangement of features that after it has been firmly cemented in a wall or parapet with considerable weight superimposed upon it, it may still conveniently receive one edge of a side-wall flashing or the like.

A further object of the present invention is to provide a superior flashing oi the character referred to and having its elements constructed and arranged so as to provide a pocket or groove for the reception of a portion of a side-wall flashing or the like and without requiring the employment of Wedges to hold such pocket or groove in condition to receive such side-wall flashing.

Other objects and advantages will appear to those skilled in the art from the following, considered in conjunction with the accompanying drawings.

In the accompanying drawings, in which certain modes of carrying out the present invention are shown for illustrative purposes:

Fig. 1 is a broken end view of one form which a combination through-wall flashing and receiver for side-wall flashing may assume in accordance with the present invention;

Fig. 2 is a top or plan view thereof;

Fig. 3 is an edge view looking in the direction of the arrow 3 of Fig. 1;

Fig. 4 is a broken transverse sectional view of a portion of a parapet showing installed therein, a flashing corresponding to that shown in. the preceding figures of the drawings, together with a fragment of side-wall flashing or counter-flashing, and showing the projecting portion of the main-reach and upper clamping-reach prior to being bent downwardly to retain the said sidewall flashing;

- Fig. 5 is an enlarged scale fragmental view of 2 the portion of Fig. 4 indicated by the broken lines 5;

Fig. 6 is a broken sectional view taken on the line 6-6 of Fig. 5;

Fig. 7 is a view similar to Fig. 6 but showing the condition of the corrugations prior to the introduction of the edge of the side-wall flashing or so-called .cap-flashing;

Fig. 8 is a fragmentary plan view of the socalled upper clamping-reach of a flashing embodying the present invention but showing another form which the yielding-means may assume in lieu of corrugations; and

Fig. 9 is a sectional view taken on the line 9--9 of Fig. 8, but on a larger scale.

It may here be explained that in the construction of masonry buildings and the like, it is common practice for the masons to install the through-wall flashing in a wall or parapet, during which process superimposed cap-stones or other masonry serve to compress the through-wall flashing and thus make it difficult for the roofers or tinsmiths to later join a side-wall flashing or counter-flashing with such through-wall flashing. As will be apparent from the following, consid ered in conjunction with the accompanying drawings, the present invention provides a construction and arrangement of elements whereby such side-wall flashing or counter-flashing may be readily and conveniently joined with the through-wall flashing, despite the weight of the wall resting upon the said through-wall flashing and despite the rigidity imparted to portions of the flashing by hardened mortar or the like.

The showing of Figs. 1 to 7 inclusive The particular combination through-wall flashing and receiver for side-wall flashing chosen for illustration in Figs. 1 to '7 inclusive of the accompanying drawings, may be conveniently formed of copper or other sheet material and includes a through-wall reach or main-reach generally designated by the reference character in and from one edge of which is reversely or inwardly bent a resilient upper clamping-reach II and from the inner edge of which latter is reversely bent a lower clamping-reach l2, as is especially well indicated in Fig. l. The lower clamping-reach I2 is preferably made shorter than its complemental upper clamping-reach l I and has its edge-portion bent downwardly to form a guard-flange l3.

The reverse arrangement of the integral upper clamping-reach I l and the lower clamping-reach It provides what may be aptly termed a longitudi':

'nal pocket or groove I4 opening outwardly or toward the direction of the guard-flange l3 and adapted to receive an edge of a slide-wall flashing or counter-flashing, as will later appear. Preferably and as shown, although not directly involved with the present invention, the through- Wall reach or main-reach Ill is provided with a dovetail-shaped longitudinal rib I5 which serves to aid in anchoring the flashing in place in masonry and also for keying together portions of the masonry wall or parapet.

In the instance shown, the entire flashing above described, including the elements I0, ll, l2, l3 and I5, is formed with corrugations l6 which are continuous and which extend substantially transversely of the sheet material from which the above described flashing is formed. The corrugations It in the throughwall reach or main-reach l serve to provide interlocks for mortar which interlocks are effective at a right angle to'the interlock or keying provided by the dovetail-rib l5. While it is preferred to have the corrugations l or their equivalent extend continuously in the features 10, ll, l2, l3 and I5, so far as the present invention is concerned, the said corrugations or their equivalent are required to be only in the upper clamping-reach H or its equivalent, for reasons as will hereinafter appear.

In Figs. 4 to 7 inclusive, the flashing above described is shown as installed in a parapet and supported on bricks l1 and having located above and pressing downwardly upon it a cap-stone l8. The major portion of the element ill including its dovetail-rib l5, and the under portion of the lower clamping reach 12 are embedded in a horizontal mortar seam l9 between the uppermost bricks I! and the cap-stone l8, as is especially well shown in Figs. 4 and 5. As shown, the right hand or inner portion of the through-wall reach Hi and the similar portion of the upper clamping-reach II project beyond the inner face 28 of the parapet, for purposes as will hereinafter appear. The left-hand or outer edge of the through-Wall reach i0 is preferably extended beyond the outer face 2! of the parapet and bent downwardly as indicated in Fig. 4, to provide a guard-flange 22 extending downwardly over the adjacent bricks l7.

As thus installed, the lower face of the lower clamping-reach i2 is rigidly supported by the material of the mortar seam l9 so that its corrugations l6 are substantially unyielding. Similarly the upper face of the corrugations iii in the through-wall reach 10 are rigidly supported and held in shape by the material of the said mortar seam Hi, all as is especially well shown in Figs. 6 and 7. Under the conditions just described, however, it will be noted by reference to Figs. 6 and 7 in particular, that the corrugations in the resilient upper clamping-reach H are free to distort or yield, since they are not directly supported by mortar.

After the masons have completed the parapet or wall and the installation therein of the flashing comprising the elements Ill to H5 inclusive andas is indicated by full lines in Figs. 4 and 5, sheet-metal workers may in due course bend up a coupling-flange 23 along the upper edge of a side-Wall flashing 2t and then force the said coupling-flange 23 in between the upper surface of the now-rigid lower clamping-reach l2 and the underface of the corrugated and still-yieldable upper. clamping-reach II, to thus, bring the assembly. into the. condition illustrated in Figs. 4, 5 and 6. It isnot necessary, however, to install the side-wall flashing 24 or its equivalent hurriedly or promptly, since it is feasible to wait many days or even weeks before so doing, to thus permit other work to be completed and full and careful inspection to be made before such installation.

The main portion of the side-wall flashing or counter-flashing 24 above referred to may extend downwardly in parallelism with the inner face as of the parapet and may be connected at its lower portion in a watertight manner to the roof or other desired feature of a building. It will be noted that in Fig. 7 the condition is shown just prior to the forcing-in of the flange 23 of the side-Wall flashing 24. In Fig. 6, on the other hand, is shown the condition of the similar parts after the forcing-in of the said flange 23 to cause the corrugations or their equivalent in the upper clamping-reach II to distort or otherwise yield to receive the said flange 23 with a friction-tight fit.

After the installation of the flange 23 of the side-wall flashing 24, the portions of the throughwall reach it! and the upper clamping-reach Ii projecting beyond the inner face Zll of the parapet, may be bent down over the upper portion of the said side-wall flashing, as indicated by the broken lines in Fig. 5.

From the foregoing, it will be apparent that by providing the upper clamping-reach H with corrugations or their equivalent yielding-means, a counter-flashing such, for instance, as the sidewall flashing 24 may be driven into and firmly connected with the through-wall flashing-portion of the assembly, after the mortar in the masonry has thoroughly set and all this despite the fact that the reaches 50 and :2 are held rigidly and unyielding by the said mortar. As before noted, it is not necessary to corrugate either or both of the through-reach H) or lower clamping-reach I 2, since these may be left straight and the corrugations or their equivalent placed only in the upper clamping-reach H so that the latter may yield as described when the flange 23 or its equivalent is forced into place in the pocket or groove Id.

The showing of Figs. 8 and 9 In Fig. 8 is shown a fragment of an upper clamping-reach 25 similar to the previously-described clamping-reach l l. Instead of being provided with yielding or distortable corrugations such as It, the clamping-reach 25 is rolled or otherwise formed with yielding or distortable downwardly-projecting hollow bosses 26.

When the coupling-flange such as 23 of a counter-flashing such as 24 is forced into a pocket or groove such as M of a through-wall flashing of the character shown in Figs. 1 to '7 inclusive but having an upper clamping-reach of the character shown in Figs. 8 and 9, the bosses will yield and otherwise discharge the basic functions of the corrugations IS in the clamping-reach II.

The invention may be carried out in other specific ways than those herein set forth With-1 out departing from the. spirit and essential characteristics of the invention, and the present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and equivalency range of the appended claim are intended to be embraced therein.

I claim:

A flashing, comprising a continuously corrugated sheet of resilient metal having its corrugations extending substantially longitudinally of the sheet, said sheet having at one end of a major length thereof a reversely bent first corrugated clamping sheet length underlying an adjacent marginal portion of said major sheet length in close proximity thereto, and a second corrugated clamping sheet length reversely bent at the inner edge of said first clamping sheet length into underlying relation with and close proximity to the latter so that said first and second clamping sheet lengths combine to form an outwardly opening pocket, whereby the side formed by said first corrugated clamping sheet length is yieldingly compressible plane-wise on forcing counter-flashing into said pocket of the flashing when the latter is installed.

EDWARD J. FINN.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,557,481 Schneider Oct. 13, 1925 1,625,688 Schaefier Apr. 19, 1927 1,677,140 Ketterman July 17, 1928 1,721,550 Ewer et al. July 23, 1929 2,432,622 Johnston Dec. 16, 1947