US1992819A - Flashing - Google Patents

Description

I Feb. 26, 1935.

FLASHING Filed Nov. 28, 1954 A. B. FRIEDBERG ET AL ry Jern/ /Vearrpore/ Patented Feb. 26, 1935 UNITED A,srli'rrs y1?lef'r-ieilir ori-fics Abram'B. Friedberg, Highland Park, and Ernest A. Arend and Jerry N. Bear-more, Asbury Park,

'Application November 28,1934, serial No. 755,218

iroiaims. (c1.- vs -*127) u Our invention relates to flashings and hasas its main object the overcoming of various objections 4foundin conventionaltypes of flashings.

i `fIn flashings as heretofore constructed difficulty has been experienced in efficiently providingfor a drainage of water and permitting a circulation fof air through the walls. As a result the walls have hada tendency to retain moisture for longr periods of time with obvious undesirable consequences. i

The present invention aimsv to overcome the Vforegoing objections by the provision of a flash- `ing having means for rapidly draining water and 4for maintaining a continuous circulation of air through the wall in which the flashing is installed. Another object'of` our invention is to provide a flashing so constructed as to permit the expansion and contraction'which occurs within the walls due to temperature changes and to reduce to a minimum the effects of such expansion and contraction and thesettling action of the walls.

`We have achieved the foregoing objects, and such other objects as may hereinafter appear or be pointed out, in the manner illustratively exemplifled in the accompanying drawing, wherein- Fig. 1 is a perspective View of a strip of flashing embodying our invention. Flg.2 is a vertical section showing a strip of flashing embedded in a layer Yof mortar-between two courses of masonry. u

Fig. 3 is a transverse section through the wall of a building illustrating the use to which our improved flashing may be put in the wall of a building- Y Fig. 4 'is a transverse section through the wall of a building illustrating another use to` which our improved flashing maybe put in the wall 'of a building. Y Fig. 5 is an elevational view ing embodying our invention.

Referring now more particularly to the accompanying drawing, the numeral 1 designates a strip of flashing formed of sheet metal and having a. series of narrow, shallow corrugations which extend transversely of the strip of flashing. The Vstrip may be bent lengthwise to form flanges 2 and 3 as shown in Fig. 1, or it may be bent into other shapes as shown in the other views depending upon the position vwhich it is to occupy in the 50 wall.

' An important feature of our invention resides in providing means for insuring the drainage of water from the wall in which the flashing is installed and for permitting a circulation of air to dry up or evaporate any moisture which may of a strip ofnashremain adjacent the flashing. In the embodiment of `our invention herein illustrated` this means comprises soft roll cotton wicks 4 secured to the flashing strip by means of metal clips 5,. The jwicksv extend transversely of the flashing 5 strip, that is, they extendalong the width of the strip. u If the flashing vis provided with one or more4 flanges the wick may be made long enough to extend over the flanges as well as the main body .portion of the strip as shown in Fig. 5., It will be V10 further noted that the longitudinal bends are so formed or curved transversely of the bends, that the corrugations or ribs are not flattened or otherwise distorted to such an extent aswould weaken .the strip and prevent the wicks4 from directly 1K5 following theV contour of the strip torwhich they are attached. Uniform weephole conduits are thus formed in the mortar by the wicks adjacent the flashing strip which are free from sharp bends and such irregularities at the bends as would pre- 2,0 vent the free drainage of water therethrough to thelouter edge of the strip. i

After the flashing has been installed within the walls of a building the wicks, being made of cotton, will gradually deteriorate `particularly under 25 the action of moisture and'thereby vform weep holes in the mortar or concrete. These weep holes `will thereafter effectively drain off any water or condensation to the exterior of the walls thus preventing accumulation of moisture within 3Q the walls with resultant damage to `the Walls themselves or to the interior of the building. The Weep holes also provide conduits for the circulation of air through the walls of the building and into the air spaces usually provided on theinner side ofthe walls, whereby any moisture which is notdrained voff is evaporated. i v. The metal clips 5 comprise narrow strips of suflicient vlength to.Y bridge at least two corrugations of the sheet to which they are secured so as 40 to overlie a trough andy primarily serve as a V means for securing the wicks to the flashing.

However, when the flashing is installed in a Wall mortar will be forced between the clips and sheet so that these clips perform an additional function in that they serve to anchor the flashing into the mortar. If desired, additional clips 6 may be employed. These are longer than the clips 5 and are normally bent down against the flashing. When the flashing is being installed in Y a horizontal position as shown in Fig. 3 the clips Bare bent upY vertical and after the next course of brick has been laid the ends of the clips are bent down over the top of the adjacent bricks. When the flashing is installed in a vertical position as shown in Fig. 4 the clips 6 are bent'at right angles and lie in a horizontal plane in the mortar between two courses of brick. In either case the clips 6 serve to securely anchor the flash# thereof and in addition permit expansion and contraction of the walls as well as settling of the walls without the formation of cracks or breaking away of the flashing from the mortar. Some changes may be madeinthe construction and arrangement of the parts of our invention Without departing from the real spirit .andv p urpose of our invention, and it is our intentionto cover by our claims any modified forms of struc' ture or use of mechanical equivalents, which may be reasonably included within their scope. VVWe claim: y

1. In combination with a wall comprising a plurality of courses of brick and intermediate courses of mortar, Aa dashing embedded in one of said Acourses of mortar comprising a stepped metal strip and means extending transversely Vof said f -strip adapted to deteriorate and form an opening in the mortar. Y Y

2.` In combination with a walll comprising a plurality of courses of brick andintermediate courses of mortar, a iiashing embedded in one of said i l Y rugated sheet of metal bent from edge toedge courses Vof Vmortar' comprising-aV stepped Vmetal strip and means formed of textile fabric extending transversely of said strip adapted to deteriorate and form an opening in".l the mortar.

3. In combination with a wall comprising Aa plurality of courses of brick and intermediate courses of mortar, a ashing embedded in one of said courses of mortar comprisinga stepped metal strip and awick extending transversely'of said strip adapted to deteriorate and form an `opening in the mortar.

'4. A flashing comprising a stepped sheet of metal having a Wick secured thereto to extend substantially transversely thereof.

5. In combination with alwall comprising a Aplurality of courses of brick and' intermediate ycourses of moi-targa stepped flashing embedded corrugations of said sheet, said means comprisf ingY transversely spaced clips bent horizontally V at points remote from their point of attachments 'to said strip. Y

tar,` a plurality of clips for Y y to said flashing, one of said clips extendingvertiy said mortar.

9. In combination with a wall comprising a plurality of courses of brick and intermediate courses `of mortar, a liashing embedded in one of said courses of mortar comprising Va metal strip, a'wick associated with said strip adapted to deteriorate and form an opening in the morsecuring said 'wick cally upward from saidashing and benthorizontally over the superadjacent-course vof for anchoring said flashing into said wall.` v l0. A through wall flashing ccmpri'sin'g"a4 longitudinally bent sheet of metal having',` corrugations extending transversely thereof, the corfu-- ygations being undistorted at the bend,I and a n rope-like wick secured tosaid sheet to Vlie within i a corrugati-on thereof.

brick g 11.A through wsu nashingfeompiisinga cor'- llength thereof.

12. In a through wall iiashing a corrugated sheet or relatively stiff waterproof material bent in the arc of a circle from edge to edge across the corrugations thereof, and the corrugations being curved and substantially undistorted in the direction of their length at the bends. Y 'f 13. In a through wall-flashing, a sheet vofrelatively stiff waterproof material bent in the arc of acircle longitudinally to form Qaila'nge, said sheet and flange being bent transversely to form'continuous grooves and ridges whichjare ysubstantially undist'orted at the longitudinal bend."

' `1l. -In combination with a wall-comprising'a plurality of courses of brick andinterinediate courses of mortar, a corrugated through wall .flashing strip embeddedhorizontally in onev of said courses ofV mortar, and 'mortar anchoring means secured toa face thereof andbeing of sumcient length to bridge at least twocorrugationsof said sheet. l w

` ABRAM B.' FRIEDBERG.

'ERNEST A. ARENDj: VJERRY N. BEARMORE.

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