US1905017A

US1905017A - Roof flashing

Info

Publication number: US1905017A
Application number: US560944A
Authority: US
Inventors: Vallas Lionel
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-09-03
Filing date: 1931-09-03
Publication date: 1933-04-25
Anticipated expiration: 1950-04-25

Description

A ril 25, 1933 L. VALLA R FLASHING Filed sep 1931 Patented Apr. 25, 1933 LIONEL VALLLAS, OF CHICAGO, ILnInoIs ROOF FLASHING Application filed September 3, 1931." Serial :No. 560,944.

My invention relates to flashings for roofs on buildings at the juncture with parapet walls and chimneys; and has for its object the provision of a flashing adapted to bese 5 cured in a crevice or joint in the wall or chimney and arranged to provide a water proof relation with the roof proper.

Another object of the invention is topro vide a [lashing which will not betoo expensive in manufacture, while at the same time being reenforced at the point where it isapt' to become broken or ruptured and where it is subject to wear. 1

Anotherobject of the invention is to pro- 5 vide a reenforcing element whereby the vari;

ous flashing sheets are firmly clamped together and said reenforcing clamping element formed so as to provide ashoulder on the upper face of the element adapted to pre- 9 vent seepage of water to the rear edge of said element and hence to the rear side of theflashing. V j V Another object of the invention is the provision of a metallic wedge member of prearranged construction adapted for insertion in the crevice or joint in the wall orchimney whereby the flashing is firmly held in place; the wedge member being adapted to cooperate with the shoulder for effecting a binding relation betweenthe flashing and the wall or chimney. V a v v The objects and advantages of my invention will be readily comprehended fromthe detailed description of the I accompanying drawing, wherein:

Figure 1 is a sectional elevation of a por-y tion of a roof and a wall, with my improved,

flashing in place. 7 a

Figure 2 is a perspective view of a portion 40 of the upper end of my improved flashing and wedge element in position.

Figure 3 is a sectional view of a portion of my flashing applied to a concrete wall.

As is well known, theweakest point in a roof is at an up-turned angle, namely at the juncture between the roof proper and a chimney or at the juncture with a parapet wall or coping. A majority of leaks occur at such places, due to improper construction of the flashing which prevents proper lapping relation with the roofing material; also because of improper protection or reenforcement'of the flashing at the point of its in-- sertion in the wall or chimney crevice; and because of the fact that the inserted portion; of the flashing is not made to prevent ingress or seepage of waterto the rear. side thereof At the same time, difflculty has beenfencountered with the means heretofore employed for securing the ffiashing in the wall or chimney crevicefi y Lam aware that flashings have been em-. ployed which have been provided with reenforcing plates folded back uponthemselves without, however, enfolding the pliable flash ing material therebetween so. as to firmly clamp the reenforcing plates thereto; such flashings, however, providing no means for the clipsare forced into the wall crevice. ,0}

My invention is adapted toobviate the objections heretoforeeencountered. and consists in employing a numb-er of." strips or sheets of saturated canvas 5; 6 and 7, impregnated with a suitable water-proofing" ma 5 terial; the various sheets being preferably of different f and predetermined lengths in order that their interlapping points with the roofing material proper 8 may bedisposed at different places on the main roof portion, as shown in Figure 1. j

The material or sheets 8, which constitute the main part of the roof, are preferably bent upwardly against the side of the chimney or f parapet wall indicated at 9 and disposed be tween the lower sheet 7 and the intermediate sheet 6 of the flashing, withthe intermediate sheet extending on to the main portion of the roofandsealedthereto with suitable material 10; while the outerfiashing sheet extends 7 approximatelyto the point 11 andis sealed to the roof proper. I lower flashing sheet 7 preferably extends beyondthe last mentioned point and beneath.

the main roof 'materialapproximately' to the allf f the flashing sheets'and the main-roofing material are seal-ed together with a suitable.

point 12; it being understood, of course, that water resisting material.

The

flashing sheets

5, 6

' provided with a vmetallic reenf'or'cing and protecting strip 13, preferably of aluminum of suitable gauge. This metallic strip extends. throughout the upper-longitudinal I edges of the flashing sheets. 5,6 and "z and is bent longitudinally withthe flashing sheets 'therebctween' so as toprovide thebottom leg' or portion 14 and the upperfleg or portion'15'; thetwo. portions bei'ng'in turn'bent down wardly to provide the vertically disposed '7 fiange'portions 16 and17,,which protect the the breakage or cutting bythe edges of the bent portions of the-

flashing sheets

5, 6 and 7 at the wear encountering points, namely irom bricks or concrete from which the wall or chimney is constructed; and'from the weather and moisture at theupper side of the bent]v part of the flashing.

Afterthe metal strip 1 about the'fiashing

sheets

5, 6 and 7 the bent longitudinal side of the metal strip, with the .enfo'lded flashing sheets, is then bent or curled upwardly onto itself by suitable ma' chinery,to provide the shoulder 18, there by firmly binding the metallic'cstrip to the upper longitudinal edges of the flashing sheets; the. enfolded shoulder portion caus ing the strip to be firmlybound onto the flashing sheets.

1 Where thefiashing is torbeemploy-ed 7 against a brick wallorlchimney, the mortar between certain courses of bricks at aiproper distance'above'the roof, is removed or raked out, asshown in Figure 1, sufficiently .to receive'the reenforced upper-longitudinal end of thefiashing; the flashing being inserted into the raggle or crevice so as to have the lower flange portion 16 of the reenforcing strip flush with the side Of'the wall or chimney as shown. 7 I f In order to firmly hold and'l'ock the flashing in place, I provide the metal wedge members 19;'a'suitable number of these wedge members being employed" at spaced apart points'throughout the width of the flashing. 7 Thesejwedge members are preferably made "from spring steel sheets ofcomparative.

width,;' as shownlin Figure 2,1 bent into Va shape so a to provide the two "diverging. v

sides

20 and 21 normally spaced apart at the free ends somewhat greater thanihe verti-' cal dimensions of the' raggleor crevice in the wall'or chimney. w

On the other hand, the

- shown.

7 V plicatio have their upper longitudinal edges 3' has been folded f The side is preferably of somewhat greater width than the side 20' of thewedge member 19, and this side 21 has its free lionv gitudinahedge bent slightly upward, as shown at 22; bothlongitudinal sideshaving comparatively sharp. longitudinal edges as -After the fla-shing has bee'n properly in sertedintoj the crevice,"the wedge member 19. is thendriven into place with asuitable ,t'o'ol in'serted into the apeXof-the member.

The free endflof thelower side 20 engages .the shoulder'18 of the flashing reenforcing; strip 13, and the wedge member 19 at its inner bent edge is caused" to tilt'upwardly and ride over the shoulder 18' in the manner shown in the drawing, which 'inturn induces the edge of the lower side 20 to somewhat indent itself. in the metal reenforcingstrip 13, while the upturned portion 22-of the upper side 21 will embed or force itself into the brick above the crevice. It is appa rentthatthe wedge member will thus firmly hold the-flashing in position. The crevice may then again be filled with cementor mor- F tar or any other suitable binding material.

- In Figure 3', I illustrate application of my improved flashingto a cement or concrete wall 23 which, at a properfdistance above the roof proper, has been provided witha crevice or raggle 245 for the reception of my 1 flashing, *which is similar; to-the flashing shown in Figures 1 and 2 as heretofore described. I r With the-flashing provided with the metal binding constructed and arranged asjsho'wn and herein described, the sheets of flashing reenforcementand protection are-very essen tial and resistance to'the act on of rain and snow afforded. 2-

fabric are 'fully'protected at the bend where l Furihermore, by bending the inner longitudinal edge of the flashing-and reen'forcingstripinto f the upstanding shoulder 18, the passage of water, which may seep through I the re mOrtared crevice, to the rear side of the flashing, will be "prevented while at r the "same time this shoulder 18"acts as a stop for thefw'edge member whichrid-es into the-crev-j icein'the tilted manner shown, thuspermitting its inner edge'to ride over the shoulder 'whilethe'forwardlower longitudinal sharp moisture proof, any seepageof water there through will be prevented-from passageto I the rear of: the fiashing'by-"the shoulder 18. 7 I

As shown in the drawing,the wedge members are formed of sheets of resilient metal of comparative length; the sheets being bent into V-shape and preferably with one'leg or wider, the wedge member when inserted into.

the crevice is caused to tilt upwardly as shown, the upwardly bent portion constituting a fulcrum point, which therefore induces the apex portion of the wedge memher to also engage with the wall at the top of the crevice, thereby providing three gripping portions to the wedge member, with each gripping or contact portion disposed in a diflerent vertical plane, as it were, which prevents any possibility of lateral movement of the wedge member. At the same time the sharp longitudinal edges of the two {legs or sides of the wedge member are brought into gripping or binding position, which, in practice, has been found makes shifting or accidental displacement of the wedge members impossible; while the position of the wedge members relative to the flashing proper,

is determined by the shoulder on the upper side of the inserted'portion of the flashing.

In practice preferably a number of wedge members are employed for each flashing unit; but with the rigid binding along the upper edge of the flashing it is apparent that the full length of the flashing will be held in place if only a single wedge member was employed.

I have shown what I believe to be the best embodiment of my invention and have described-the same in terms employed merely as terms of description and not as terms of limitation as structural modifications may be made without, however, departing from the spirit of my invention.

lVhat Iclaim is: v i

1. Flashing of the character described comprising a plurality of saturated sheets of fabric; a sheet metal reenforcing strip for the upper longitudinal edges of the fabric sheets, bent along a longitudinal line with the edges of the fabric disposed at said bend, the two parallel sides of saidmetal'strip with the enfolded fabric sheets then bent upward ly to provide a shoulder along the upper longitudinal edge of the flashing; and a resilient wedge member adapted to ride onto said shoulder into tilting position with one longitudinal edge in'bearing relation with the upper side of the metal reenforcing strip while the other longitudinal edge is in binding relation with the upper side of a crevice in the wall to which the flashing is applied.

2. A flashing of the character described comprising a plurality of sheets of fabric adapted to receive composition roofing material therebetween, a reenforcement for the upper ends of the'flashing fabric consisting;

of sheet metal folded about the upper edges of the fabric; the sheet metal, with the enfolded fabric, at the folded edge being bent upwardly and onto the upper face of the" flashing to provide a shoulder; andwedge' members of resilient 'sheet metal to be dis posed'on top of the reenforced end withone longitudinal edge ain'engagement with "said shoul'de'rwhile the other longitudinal edge is bentnpwardly 'to engage the upper sideof acrevice in the ing is applied. a

3. a In a-flashing composed binding for the upper longitudinalsedge of fabric, a metal so thereof composed ofa sheet of metal folded A back'upon itself with the fabric therebetween if and the bent longitudinal side with the fabricfthen bent back upontheupper side to Q provide a shoulder onthe upper side of the flashing; and aV-shapedwedgemember of resilient metal adapted to be forced-into a' wall crevice ontop of said binding strip with I the apex of the wedgemember disposed horizontally while the upper side of the wedge member is bent upwardly to'form gripping relation with the wall at the upper side of the crevice.

4. In a roof flashing, the combination of 5. In a roof flashing, the combination of pliable flashing material, the upper end whereof is provided with a metallic hinding strip of width greater than the extent of insertion of the flashing .in the crevice of a side wall, said binding strip at .its inner longitudinal edge being provided on its upper surface with a shoulder;-with a Wedge.

member formed from a sheet of resilient metal bent into V-shapeand adapted to be forced into the wall crevice on top of said binding strip, with said shoulder while the other si e is in engagement with the wall at the upper side of the crevice. a v

6. In a roof flashing of the character described, the combination sheets of pliable material, the upper ends whereof are provided with a metal strip folded thereabout and the folded edge of the strip with the ends of the material bent upwardly to provide a shoulder; with a wedge member of resilient sheet metal bent into V-shape adapted to be forced into a wall crevice on arranged in lapping of the wedge member with one side in enga ement' of a plurality of wall to which'the flashi? r V of the crevice.

I other :gideisin engagementwithrthe Wfii11fit therupper side ofthecreviceJ-f r 7 H7. 111 2, 1200fflashing,fiche combination0i;

' flashing materialmadaptdato have thevupr er-end insertedina wall 'cfevice, the upper.

i1rfgde ofltha flashing adjacentthe' insert-- ed lorigitudinabedgebeing-providedwith an upwardly-disposed portion ;-with a, wedge j Lmember composed of an elongated sforip of 1 V astifisheet: metal bentilongitnd-inally; 1nt0 V-' Q *ape 'and th upp er longitndinaL side'curl'edfi I upwardly, with the apex of the wedge (115-;- V; 7 posed inwardly? over the-upwardly; disposedl;

' portion of the; flashingso as to cause said Wedge; memberi ;t0 tilt upwardly and forcev "j '20 b ne: longitudinal edgenof each side of: thefi' member-into: gripping relationf with the flashing;and with-:the upper wall: of the crevic'a-f Y ions; I

LIONEL-V L V V