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Publication numberUS1685525 A
Publication typeGrant
Publication dateSep 25, 1928
Filing dateAug 17, 1925
Priority dateAug 17, 1925
Publication numberUS 1685525 A, US 1685525A, US-A-1685525, US1685525 A, US1685525A
InventorsFloyd Dow
Original AssigneeFloyd Dow
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flashing for roof construction
US 1685525 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Sept. 25, 1928. 1,685,525

F. 'DOW FLASHING FOR ROOF CONSTRUCTION Filed Aug. 17, 1925 Patented Sept. 25, 1928.



Application filed Angust'-17, 1925. Serial No. 50,616.

This invention relates particularly to root construction at a point where a root joins a vertical wall extending above the root, as, for example, where the root of a kitchen oins a main wall of a house.

The primary object is to provide an improved flashing for use insuch a location,

1 which will enable a water-tight j ointure to be e'l'lected between the roof and the vertical wall which rises above the roof, the mproved device providing for the construction being made with great facility.

The invention is illustrated in its preterred embodiment in the accompanying drawing, in which Fig. 1 represents abrolien vert' l sectional view of a structure embodying the en ti on. where the joint is either between a natroot joining a main wall. or between a sloping roo t of a gable-end additionjoinin g themain wall and Fig. 2 represents a similar section where the joint is between a simple flat sloping roof which extends downwardly and away from the main wall.

Y Referring to Fig. 1, A designates a main vertical wall of a house, for example B designates a roof joined to the main wall some distance below the upper end thereof; and C designates the improved flashing employed 7 at the jointure.

The flashing C is formed from a. strip of sheet-metal, such as copper, or galvanized sheet-metal, the strip being of any desired length and adapted to extend along the joint as between the root and the vertical wall. There the roof B is in the nature of a flat deck, or where it constitutes one side of a gable roof, the portion of the flashing which extends under the roof-covering may be substantially at right angles to the portion which serves as a channel for the siding, or external sheeting of the vertical wall A. On the other hand,

where the root slopes downwardly and away from the main vertical wall, the portion of the flashing which extends under the root-covering may be inclined, as shown in Fig. 2.

The flashing preferably is formed integrally from a strip of sheet-metal of suitable length. The metal is folded upon itself along a medial line to provide the intermediate twoply flange 1; one wing of the metal is bent at substantially right angles to the flange 1. thus providing the bottom web 2 of a channel,- the wing is then bent upwardly to provide the inner wall 3 of said channel. The other wing of the metal preferably is so formed as to proide an inclined portion 4: which constitutes with the flange l a small gutter. The metal bent again at the point l to provide an apex and an inclined wall 1 whose margin 4." serves as a nailing strip. Between the flange 1 and Y the strip 3 is altorded achannel for the finishany suitable manner. This covering extends .over the skirt-portion of the flashing which is secured to the root B. The formation of the skirt-portion is such as to provide a gutterchannel 9 below the edge of the root-covering which abuts against the flange 1 and also. to provide the apex 1 which serves as a bearing'tor the root-covering which will'prevent water from passing't-he skirtof the flashing.

and thus seeping beneath the roof-covering. Any water which may get in between the edge of the roof-covering 8 and the flange 1 may pass out through the gutter-channel 9. In practice, if desired, the upper portion of the flange 1 may be bent back over the upper edge of the roof-covering 8, as indicated by the dotted line 1. This will afford a binding-strip which may be battered against the upper niargin of the shingles by means of a Wooden mallet, and thus greater security against the passage otwater between the root-covering and the flashing will be afforded. It will be understood that where the roof-section B constitutes one side of a gable roof, the flashing C will be inclined to correspond with the inclination of the root. In such case, the ends of the siding boards 5 Will be suitably mitered to fit in the channel between the flange 1' and the flange 3.

In the modification shown in Fig. 2, A designates the main wall; B. designates a roof sloping downwardly and away from the main wall; and C designates the flashing. The flashing is of the same construction as the flashing C, and corresponding reference characters are employed to designate the parts. In this case, the skirt which rests upon the roof B and which comprises the gutter, the apex, and the nailing-strip, has a general downward inclination to correspond with the slope of the roof. In practice, it is quite possible to manufacture the strip in the form overlying the upper edge of the roof-covering 8,- as indicated by dotted lines.

By means of the improved flashing, it is possible to provide Weather-ti ht connections between a vertical wall and the root of a leanto, or addition, to the main building. More over, where the root or" the addition is a gableroof, it is unneees ssary to miter the ends of: the siding boards 5 Wi'tht e same care as would otherwise be nec-esss U It rain enters the channel in which thesiding boards are entered, it will gravitate away'or,.in any event, cannot cause leakage. In practice, as phaltum, or lead paints, n ay be employed at the joints to further prevent the entrance of water into the channels of the flashing.

. The foregoing detailed description has been given for clearness oi? unde i-n-'tling only, and no unnecessary limitations need be understood therefrom, but the appended claims should be construed as broadly as permissible in view of the prior art.

' What I regard as new, and desire'to secure by Letters Patient, is:

1, A flashing torthe pirrP Se set forth, comprising' a strip of slieet metal bent upons .to. afford an intermediate flange, one wing of the metal, being then bent to forniaweb and then bent upwardly to form nailing-strip, thus atiordinga ehannelfor the siding between said flange and nailing-strip, and the other wing: being; bent to provide a skirt adapted to rest upon and having its marginal portion secured to the roof, the intermediate ortlon of said skirt bein rovided with an P an upon itselfto provide 'an'intermediateflange, one wing of said metal being bent to term a channel and a nailing-strip; projecting above said flange, the other wing of said metal serving as a nailing-strip resting upon the roof and having an apex spaced with relation to said. fiangaand a roof-covering"extending ,over said shirt, the upper portionof said flange being bent over the adjacent portion of theroof-covering and serving as a bind ng. strip. 7

more new. '7

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3461625 *Dec 29, 1967Aug 19, 1969Plasteco IncSelf-flashing skylight curb construction
US5519969 *Nov 19, 1993May 28, 1996Golba; Thomas R.Removable roof flashing cover system
US6786011Nov 20, 2002Sep 7, 2004Manuel MaresMethod of sealing a sloped roof transition eliminating attaching counter flashing to a masonry wall
US7331145 *Oct 24, 2003Feb 19, 2008Vkr Holding A/SFlashing component for a roof window assembly
U.S. Classification52/58, 52/62
International ClassificationE04D13/14
Cooperative ClassificationE04D13/1415
European ClassificationE04D13/14A2