US1625688A - Roof-flashing sealing and retaining device - Google Patents

Description

April 19, 1927. 1,625,688

G. W. SCHAEFFER ROOF FLASHING SEALING AND RETAINING DEVICE Filed NOV. 25. .1925

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Patented Apr. 19, 1927.

UNITED STATES 1,625,688 PATENT OFFICE.

GEORGE w. sonnnrrnn, or cnrcnoo, ILLINOIS.

ROOF-FLASHING SEALING AND RETAINING DEVICE.

Application filed November 25, 1925. Serial No. 71,314.

against the entrance of water. It consists in the elements and features of construction shown and described as indicated in the claim.

In the drawings:

Figure 1 is a detail section of a'brick wall and portion of the adjacent roof in which the present invention is employed.

Figure 2 is a similar detail section in which the wall is concrete, and is shown at the stage of construction at which the device for the present invention is incorporated, which-is when the boxing is prepared for the concrete, and the concrete is poured thereinto.

Figure 3 is a detail sectional perspective view of a portion of a brick wall and adjacent roof showing the brick and parts of the device of actual size, and the part which characterizes the present invention in position in the brick wall ready for the flashing to be applied.

Figure 4 is a view similar to Figure 3 showing the flashing applied, and the securing device, which constitutes the present invention, folded down into flashing-securing position.

Figure 5 is a detail perspective View showing the parts as in the position of F gure 3 with the brick broken away to disclose the device more fully than in Figure 3.

Figure 6 is a detail elevation showing a portion of a gable roof with the adjacent brick wall rising above the peak and equipped with this invention.

Figure 7 is a detail section showing the device applied to the main flashing without superfiashing.

Figure 8 is a detail plan view of a fragment of the pocket device of the invention showing indentations forming bosses for holding the plies spaced apart.

' Figure 9 is a detail section, at 99 on Figure 8 on a magnified scale.

As is well understood, in the present method of applying and securing roof flashing for protecting the angle between the roof and the brick or concrete wall or chimney rising above the same, the wall is completely constructed as to the laying of the brick .or pourin and setting of the concrete, before the ashing is applied, and when the roofer comes to apply the flashing, in order to guard the upper edge of the portion which laps the vertical surface of the brick or concrete wall, it is necessary in the case of the brick wall, to cut out the mortar between the two layers of brick between which the lip of the metal counter-flashing must be inserted for retaining it on the wall; and besides the diflicult and laborious character of this work, the joint thus opened must be again completely re-occupied with mortar or cement; and besides the labor and expense of this process, it is difiicult to restore the joint '50 that it shall be as perfectly water-tight as the original mortar joint; and it is necessary to employ flashing hooks or lead plugs to prevent the lip of the flashing from working out of the brick joi it, which by binding the lip tightly tends to prevent the longitudinal movement of the flashing which is necessary to accommodate the expansion and contraction caused by change of temperature, by reason of which in the common construction the flashing is liable to be ruptured or torn loose. The present invention is designed to overcome this difiiculty and defect, and for that purpose it consists essentially of a sheet metal pocket or socket member which in the case of a brick wall may be lodged and engaged in the mortar between the two layers of brick where the mortar would be cut out for entering the superfiashing in the present method. This metal pocket or socket is made by folding a piece of sheet metal, indicated at A, in the drawings, so that the two plies or layers shall be spaced aparta distance substantially equal to the thickness of the sheet metal of which the counterfiashing is commonly made, sheet metal of the same thickness being desirably employed j for this pocket. The sheet metal, folded as indicated at a, is then bent as to both its plies, as seen at a to form an obliquely-extending two ply lip or flange. indicated in its entirety by A the width of this lip or fiange being slightly less than the customary thickness of the mortar layer between the two courses of brick, B, B, between which the device will ?be set in the mortar, indicated at B The lower ply or fold, .A', is bent at, a right angle,-

as seen at a, to adapt said lower ply to embrace the corner of the brick of the lower course. The upper ply,

tion on the lower course of brick before themortar is applied preparatory to the next course, so that it is'completely einl-iedded, under the mortar, the obliquely upturned lip, A being th'ereby held against horizontal displacement of the device. Desirably the width between the right fold, a and the oblique angle fold, a, is about one-half the width of the brick, that is to say about two inches.

In case of a concrete wall, the folded sheet metal element in the form shown in Figure 3,tl-at is, first folded double at a, then bent at the obliqueangle, a and then having the lower ply bent at right angles a, with the portion, a of the upper ply protruding directly from the wall, is secured by mounting it upon the upper edge of a board, 0, of the boxing, and securing the same by tack, s, as shown at 0, driven through the projecting portion, (i of the upper fold or ply; and in this position it will be seen that as to the two ply portion backaof the right angle bend, a it becomes embedded in the concrete when poured into the boxing, and is held in the 1ntegral=concrete wall with the same certainty and 'sec urety it is held in the mortar layer between the courses of the brick of a brick wall.

lVhen the wall has been equiped in its construction with this device, and the roofer comes to apply the flashing, the usual main flashing element, D, which may consist of felt in the case of a felt roof, or may be metal in the case of a metal roof, or of sheet metal applied, according to the usual varied methods, is applied in the usual manner, as seen' in Figure 3, and the counterflashing, E, in the usual form of a sheet metal bent at right angles to form a horizontal lip or flange E which in the customary construction is inserted between the brick courses from which the mortar has been first dug out, is applied by inserting this flange, E

. between the piles of the folded pockets or (ill socket member, A, already built into the wall, and the horizontally protruding marginal portion a, of the upper ply is then folded down over the vertical portion of the inserted counter-flashing enclosing and securing the same, as clearly seen in Figure 4. It will be seen that the method of completing the construction for securing the flashing will be the same in the case of a concrete wall as in the case of a brick wall above described. I

From Figure 6 it will be understood that length to the sections of the flashing and counterflashing which are made in trape" zoidal form to match the slope of the roof at the lower end, and conforms to the line of-the'brick courses at the upper end resulting in the stepped appearance of thesuccessive sections applied along the slope (it the roof, as seen in Figure (3. And from this figure it will be. understood also that this device is applicable equally to a double sloped or gabled roof, in which the form of the countertlashing is as seen at E", in Figure 6, while the form of the pocket or socket member for holding the counter-flash ing member which strides the ridge of the roof, 'is not affected by that feature, but is straight paralleled edged as for the other sect-ions along the slopes of the roof.

In order to prevent the fold of plies of the socket and pocket device, A, from being pressed close together in the process of laying the course of bricks above it, and thereby making it impossible after the mortar is set to insert the flashing of the counterflashing, one ply,preferably the upper-is indented, as seen at e in Figure 8, forming bosses seen at e in Figure 9, which are of sufficient height. to keep the plies spaced apart while the mortar is soft, notwithstanding superincumbent courses of brick. These bosses are readily cut off if the metal is soft, or ressed back if it is harder, by the lip of tie counter-flashing when that is applied by the roofer by driving it into the pocket; and the bosses insure tight grip on the flashing lip, notwithstanding the latter may happen to'be thinner than the width of the interspace provided for it by the pocket devices, This construction, avoidin the necessity of flashing hooks or lead plugs, leaves the counter-flashing free for longitudinal movement to accommodate the expansion and contraction due to change of temperature.

In certain instances in which it is practicable to dispense with what I have called the counter-flashing by employing main flashing of the sheet metal formed with an outwardly open right angle bend at the junction of the roof and the wall, and an oppositely open right angle bend for making a lip to )roject between the brick courses of the wal ,or at corresponding place in a concrete wallit will be understood that the device of this invention will be built into the wall precisely as above described, and the lip of the main flashing will be inserted in the pocket precisely as above described with respect to the lip of the counter-flashing, and will be secured and protected by folding down the projecting 1y of the pocket exactly as described in t e instances in which a counter-flashin is em loyed. Such a use of the device is s own in igure 7 in which the lip of the main flashing is denoted by D.

I claim:

A device for the pur se indicated consisting of sheet metal olded to form two similar plies spaced apart foradmittmga metal sheet between them, one ply being bent away from the other at right angles along a line parallel to the fold at a substantial distance therefrom, the other ply being left extendingbeyond said line for a substantial distance for subsequent bending at a like angle after insertion of the metal sheet, and

one ply being formed with one or more projections extending for contact with the other ply to maintain the spacing between them before insertion. of said sheet.

In testimony whereof, I have hereunto 20 set my hand at Chicago, Illinois.

, GEORGE W. SCHAEFFER;

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