US1871585A

US1871585A - Metal flashing

Info

Publication number: US1871585A
Application number: US499498A
Authority: US
Inventors: Cheney Allan
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-12-02
Filing date: 1930-12-02
Publication date: 1932-08-16
Anticipated expiration: 1949-08-16

Description

METAL FLASHING v Filed Dec. 2, 1930 Sheets-Sheet 2 /f 770'; vnl-o 7',

Patented lAug.. 16, 1932 l uNrrsu s'rA'rEs PATENT OFFICE- g 1 mgm-EY. 0g moan, IABBAEUSET'J-'S l l l appuuo'n ma recenter s, rase. man no. 499,498.

My invention relates to improvements in interlocking iiashing, which is. preferably constructed of' sheet metal and made in a transverse ribbedform, the form being such e that when embedded in mortar between two courses' of masonry, the mortar serving as a bonding agency, therewill be a mechanical bond between the contiguous courses of masonry.

l `The objects of my invention'are to pro-A vide a. form of flashing havin ribs formed at an an le to the surface o the sheet of metal an extending transversely of its sur-l face, for the purpose of holding the sheets of metal straight across their transverse section, v`thereby to prevent their sagging in the center and form pocketsl to hold moisture.

Another object is to rovide a ribbed rein- Lforcementv composed o a plurality of thick- 2.0 nesses vof the metal, when the edges of the iashin are bent laterally to form a fiange extending alon a side of the' sheet.

Aurther o ject of my invention is to provide ribs extending above or below the 'surface Vof the sheet at fre uent intervals inorder to prevent moisture om spreading lengthwise of the sheet. Other objects will appear in the description. My invention comprisesan improved form of hashing as will be shown in the following specification and particularly pointed out in the claims forming a part thereof.

In thedrawings: Figure 1 is-a perspective view showing .355 the preferred form of my improved flash-l ing, one end of which is cut away, the other end showing the interlockingupturned edge.

Fig. 2 represents a section of two courses of masonry with my improved dashing embedded ain thc bonding mortar, showing themeeting ends of two sheets of flashing with their ends interlocked.

Fig. 3 is a transverse sectional elevation showing my improved flashing extending laterally in a wall of masonry, the `flashing' being 'embedded in the bonding mortar, its edges bent laterally against the face wall of the masonry to form a ribbed flange. Fig. 4 is a sectional edge view of my impovgd-iashing showing the preferred form o r1 Fig. 5 is a section of a modified form of flashing embodying my improvement.

Fi 6, 7, 8, 9 and 10 show different formsin w ich the ribs may be made without departin from the spirit of my invention.

.Asi ustrated in the preferred form of my invention figures 1-11 represent the body of a sheet of iiashing, 12, 12-12 etc., area series of anchoring means, such as ribs inclined lfrom a vertical line as better shown in Figs. 2 and 4 and generally of saw-toothed form. Theanchors or ribs 12, etc., may be formed at an angle to the edge of the sheet so that the spaces between them are wedge shape, tapering in opposite directions pro esslvely (see Fig. 1) although the ribs may formed parallellto each other as shown in Fig. 5 as de sire The spaced ribs provide anchoring means affording a permanent bond between the metal flashing and the masonry` structure and the walls 13 -13-13 etc., may be inclined from the vertical to any desired de gree or otherwise shaped to provide undercut portions for the reception of mortar to assist in the permanency of the bond. The form which I prefer is best illustrated in Figs. 2-4.- and 9. This preferred method of forming the ribs 12-12-12 etc., has many advantages, among others it serves to mainf tain `the metal 14--14-14 etc., between the ribs ilat and straight transversely and free from hollows and pockets to catch and hold. moisture; it also causes the, meta-l in the spaces 14-14-14 etc., to incline lengthwise of the sheets so that troughs 15-15-15 etc.,

are formed at the junction of the vertically inclined portion 13-13-13 etc., of the ribs and thehoriz'ontally inclined portion 14?- 1.4--14 etc., so that any moisture that may gather on the portions 14--14-14 etc., will readily flow tothe troughs 15-15-15, etc.,

and readil, drain to the outside of the'wall. 9

The wal s in which my improved iashing is used may consist of bricks. natural or artifical, stone or the like. In Figs. 2 and 3 I haveshown sections of walls composed of bricks 16--16 etc., bonded together by layers 10 I f mortar 17-17 etc., in which the iiashing 14 is embedded.' The edge of the flashing making a'reinforcing plait composed of a plurality of thicknesses of metal. y ,o

Successive sheets of flashing are interlocked as shown in Fig. 2, to form Va strip of flashing from end to end of a masonrywall. The interlocking portions of the flashing are best illustrated in Figs. 2 and 9.wherein the end 20, is bent upwardly at substantiallythe same angle as the inclined portion 13, etc.,

the ribs 12, etc., the opposite end 21, being bent downwardly at a corresponding` angle. When two sheets are interlocked as shown in Fig. 2'the end 21, of one sheet hooks over and interlocks-with a rib 12, the upturned end 20 'of the second sheet rests againstthe under side-of the fiist sheet. By this arrangement a trough 22.) is formed that will hold any `moisture that may pass under and around the hook portion 21. Itis pointed out that the flat portion 23, is shorter than the portion 24, and the upturnedyedge 20 is positioned at right angle to the edge of the sheet 14. The down turned edge 21 is positioned at an angle to the edge of the sheet 14 corresponding to the angle of the rib 12 with which it interlockingly engages.

In view of the above it will Vbe noted that Lhave provided a metal dashing of the through-walltype, that is, which extends transversely entirely through the `wall, so as to drain moisture to the outside, with means for providing an adequate mechanical bond between the flashing and wall. In providing anchoring means by reversely bending the metal in Z-shaped or like form, relatively large inclined drainage areas are provided for the moisture of inltration, leading to the drainage grooves 15. In providing sym-v metrical bends or anchoring means for the sheet, there is an economy in `manufacture and a wide range of spacings between adjacent anchors is possible.

I have shown my improved iiashing with the flatportion slanting upwardly from left to right, it may berformed however with the flat portion slanting upwardly from right to left or the portion-14; that'is shown as flat may be curved lengthwise of the sheet, and likewise the reverse bands in the metal may obviously be S-shaped instead of Z-shaped transversely of the sheet, without departing from my invention.

My invention is not confined to the exact form and size of ribs as shown as both-size and form of the ribs may be mo ified to meet s eci'al requirements, without departing from t e spirit of my invention.

What I claim is:

1. Through-wall lashings for insertion between layers of masonry and adapted to ex I I' y`clined portions, thelatterproviding inclined drainage areas terminating in.l channels contiguous to sald'ribs to catch and convey away any moisture-that' may infiltrate tothe sure' face of said sheet. 4 2. Through-wallA iiashings for insertion between the layers of masonry and the like walls,

and adapted' to extend entirely through said lwalls for intercepti'ng ,and forming drainage channels to convey away moisture that may infiltr'ate through said malsonry,consisting of a sheet of metal bent to form a series of transverse ribs, having up- .wardly extending inclined portions. with substantially horizontally longer lateral portions betwen` them, the upwardly inclined.

portions providing opposite reversely extending recesses serving to form an interlocking engagement with the masonry and to form channels to collect and convey away any moisture that might infiltrate through the masonry.

3'. A masonry wall structure including superpo'sed courses. of masonry bound together by joints of mortar and a sheet metal flashing embedded in the mortar between certain of said courses, and extending sub' stantially from side to side'of said wall for intercepting moisture of infiltration in said wall, and a series of locking means substan"Y tially of saw-tooth shape bonding said flashing and masonry courses securely together and providing a series of oppositely inclined recesses for the reception of the mortar subu stantially symmetrical about the axis of the mortar joint, the correspondingly in-- clined recesses of adjacent locking means serving to provide a bond between the flashing sheet and mortar against shifting of the sheet longitudinally in one direction and the corresponding oppositely inclined recesses of adjacent locking means serving to prevent longitudinal shifting of the sheet in the op-l posite direction, both of said recesses serving to provide a bond against vertical movement ofthe sheet and superposed masonry.

4. A masonry wall structure provided with a through-wall dashing as set forth in claim 3 characterized by the provision of means for providing a permanent bond beloisy newness l tween said mortar and dashing preventing vide relatively long longitudinal portions be relative transverse shifting between the tween and connectlng said ribs and drainage dashing and super-posed courses of masonry. channels contiguous to said ribs tA collect 5. Flashings for insertion between layers and convey away any molsture vthat mayy of masonry and the like, consisting of sheet lniiltrate to the surface of the sheet. 70

metal of desired width to-extend substan` CHENEY. tially from side to side of the masonry wall bent to form a series of relatively short ribs extending transversely of the sheet and at y@ an angle to its edges7 and to each other, the 75 metal adjacent to the top edge of one rib extending laterally and downwardly to the lower edge of the next adjacent rib to pro-- vide relatively long longitudinal portions between and connecting` said ribs and drainage 8 channels contiguous to said ribs to collect and convey away any moisture that may lhiiltrate to the surface oi the sheet.4 v 6. A sheet metal dashing adapted for in- 2o sertion between layers of masonry comprisl v 485 ing e, plurality of sheet metal sheets of a. desired width to entend substantially entirely through seid masonry walls, and ineens for providing a mechanical bond laetween said desiring sl'zeet and wall, comprising a plu '99 v rality of spaced anchoring ineens', each rnposed or relatively sliort ribs end longer intervening spaces to form oppositely extending reentrant recesses on opposite sides of im said sheet. for tire reception ol mortar to $5 secure said desiring sheet against movement in' opposite directions longitudinally of the siieet, crees .of seid sheets tetween seid en clioring means lacing longitudinally inclined Y drainage of moisture from the interior ot said wail.`

7. lllasliings for insertion tetween layers of masonry and the like, consisting of slieet metal el desired width to entendy substantielly from side to side of the masonry wall bent to forni s series of relatively sliortribs extending transversely of the slieet, certain oit said ribs lacing arranged ololiqnely ot tire sheet and singularly disposed with relation to others of seid ribs, tire metal. adjacent the top edge oi? one rile extending laterally and downwardly to tlie lower edge oi? the next edjecent riln to provide relatively long longitudinal portions lietween end connecting seid ribs end drainage channels contiguous to said ribs to collect and convey away any moisture that may inltrnte to tlie surface et the sheet.

el. llllesliings for insertion between loyers oir masonry and the like9 consisting ol sheet metal ol' desired vvidtli te entend entstantinlly frein side to side ofthe rnnsonry wall lient to forni a: series oi relatively short ribs extending transversely or tire sheet, seid ribs being' arranged in e plurality or? oups, the rios of one group loeing irregnlaryPE disposed with relation to the ribs of another group, the metal adjacent the top edge of one rib extending laterally and downwardly to the from one towards the other to facilitate lo I @5 lower edge of tile nent adjacent rib to pro- 13m-