US1680298A - Chimney flashing - Google Patents

Description

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J. A. LOCK CHIMNEY FLASHING Filed semi-.17} 1.92s 2 Sheets-Sheet 1 Aug. 143, 1928. LMQZQS J. A. LOCK CHIMNEY FLASHING I Filed Sept. 17, 1926 2 Sheets-Sheet 2 Patented Aug. 14,1928.

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JOHN A. LOOK, or BUFFALO, NEW YORK.

CHIMNEY FLASHING.

.Application filed September 17, 1926. Serial No. 136,112.

This invention relates to a chimney flashing adapted to prevent leakage of water through the joint between the roof and the chimney of the building. 7

It is theobject of this invention to provide a flashing of this character whichcan be, made complete, and readily assembled with the .roof and chimney of the building while erecting the latter, so as to form an absolutelyleak-tight joint betweenthe roof and the chimney by so constructing the flashing that an interleaving or interca-lating of some members of the flashing and the shingles of the roof is effected, and longitudinal channels are provided on opposite sides of the chimney whereby the water flowing down the roof, ,wi-llbe prevented from entering between the shingles and producing a leak and instead will be .conducted away from the shingles and into the above mentioned conductors whichlatter direct the water to thetop of the roof below the chimney, and therebyinsure a joint between the roof and the chimney which will exclude the entrance of weatherinto the building at this point. In the; accompanying drawings: Figurelis a perspective view of a'chimney flashing embodying my invention.

Figure 2 is a vertical transverse section showing my improved chimney flashing ap- .pl-iedto'the roof and chimney of the buildprises inc-lined or sloping roof boards 10,; and ,a covering of overlapping shingles 11 ing, this section being taken on line 22,

Figure Sis a'vertical longitudinal section taken on line 3+3Fig. 2.

Figure 4 is a vertical section taken on line H Fig. 2. Similar characters of reference indicate like parts in the several figures of the draw- This improved chimneyflashing may be employed between .the roofs and chimneys of buildings of variousconstructions, but as shown in the. drawings for example, this chimney flashlngis shownin connection withv a roofand chimney in which the roof com applied to the upper side of the roof boards;

and the roof being provided with an opening a 12 adapted to receive an upright chimney, consisting in'thisinstance of an outer body 13 of bricks which are laid in mortar in the usual way, and a lining 14 arranged within the chimney body andconsisting of fire clay or other refractory material.

My improved flashing comprises a base lo preferably constructed in the form of a rectangular plate, and provided with a central opening, a tubular body rising from this I base and con'sisting preferably of a high front wall 16, a comparatively low rear wall 17, and two longitudinal side walls 18, and two rows of wings 19 arranged on oppositesides of the tubular body, the membersof each row lapping one over the other from the uppermost toward the lowermost, and the inner edges of each row ofwings being connected with the base 15, adjacent to the respective side wall of the tubular body,

while the outer edges of the wings are free and disconnected.

The upper end of the long front wall lG of the tubular body terminates below or is arranged at a lowerhorizontal level than the upper edge of the lower. rear wall 17 of the t-ubular body, and the side walls have thelr upper edges arranged step-fashion, as shown at 20 in Fig. v1 Each of the horizontal edges of the step-shaped upper edges of the side wallslS are provided with inwardly pro ecting horizontal flanges 21,.and the vertical edges .of thesestep-shaped ends of these Walls are provided with vertical'flanges 22.

The upper edge of the front wall 16 is provided with an inwardly projecting horizontal flange 24, and the upper edge of the rear wall 17 is provided with an inwardly projecting horizontal flange 25.

In the operation of applying this flashing to a building, the same is placed over the roofand around thechimney opening 12 before the chimney is erected, so that the lower end. of the base 15 extends over the shingles immediately below the chimney opening 12, as shown in Fig. 3. If desired, this flashing may be retained in this position .on the roof by driving one or more nails gitudinal edge'portions ot the. flashin base and the adjacent partsof the root boards,

these shingles are interleaved or intercalated with the adjacent free end. portions of the wings 19, so that each of these wings is arranged between two overlying shingles in the same manner in which shingles lap one over the other. Those shingles ot the longitudinal rows which are arranged on the opposite longitudinal sides oi" the chimney flashing and are intercalated with thc'fre spective wings of thetlashing, may be se-* cured in place 1n any suitable manner, tor instance, bydriving nails through each wing 19 and the shingle immediately below the same, andinto the root board at a point above the lower edge of the next higher shingle and w ng 01' the corresponding row,

as shown forexa'mple at 27 in Fig. 2, thereby concealing thesenails which secure the flashing wings and the ad acent shingles upon the root board and also preventing the passage of any'water through any nail holes which may be formed by such nailing.

In the operation of interleaving the wings of each row-with the adjacent shingles, a downward'bend' is produced at the inner or attached end ofeach of the wings 19 ad jacent to the respective longitudinal wall" 18 ot the tubular body, as shown at 23 in Figs. 1 and 2, which downward bends of the several wings are, lengthwise in line with each other and together form a-longitudinal channel, groove or gutter into which the water is directed from the shingles by" the wings, so that this water flows to the lower end: portion of the base l5where the same is discharged over the uppersurface ofthe shingles below the chlmney openlng. this 'means, the water is prevented from seeping in between the undersides of the shingles, and the topof-the roof boards," "but instead is shed promptly, "thereby prjeventing leakage at this point into the build ing between thechimney and the roof.

After the chimney flashing has been thus applied to thereof, the erecting of the chimney proceeds in theordinaryway, and

when the same reaches the level of the flange 24 ot' the long front wall ofthe tubular body and the adjacent horizontal flanges 21. of the lowermost horizontal edge 20 of the step-shaped upper edge'of the side walls;

18, then the flanges just referred to are tucked or built into the joint between the two adjacent superposed layers of brick.-.

At the same time, the lowermost vertical flanges 22 ot the step-shaped side walls 18 are "tucked orbuilt into the adjacent vertical joints between therespective row'of bricks. In. like manner, the succeeding horizontal flangesQl and the vertical flanges .22 on the step-shaped edges of the side walls 18 are built into the joints between the succe eding rows of bricks, as the' build1ng of the same by the addition of rows of bricks progresses, including the upper flange 25 of the short rear wall 17, which is in likemandesigned that'the same harmonizes with the 7 standard size of bricks in length andheight, v and thereby enables the flanges2l, 22,2 1, 25tolit in between the horizontal andvertical joints of superposed layersor tiers of brick as they are laid, without requiring any of thebricks to be especially prepared for i this purpose, thereby enabling this chimney flashing to be applied to the roof and chimney of the building with the least expenditure-of time, whereby the cost is re- (laced accordingly. V

This flashing is preferably constructed of tin or other suitable sheet metal from a plurality-ot pieces which may be connected with eachother in any suitable manner so that in effect, they form one integral structure which has no loose parts liable'to become detached, and therefore permits of not only handling thesame easily and mounting the same? expeditiously on the root and joining V the same with the chimney, but the same also" provides astructure which positively seals all the openings in the roof around the I chimney, and efi'ectively excludes the passage ot'jrain, snow, dirtand wind under varyingweather conditions.

I claim asiny invention:

1. A chimney flashing comprising afbas.

plate adapted to be placed'over the boards 1105 of a root and having-an opening adapted to register with the chimney opening in the root, atubular'body rising trom'said base around the opening thereof and adapted to receive the chimney which extends through the root, and wings arranged on the base to lap one anotherand adapted to beintercalated with the shingles of the root." l i 2. A chimney flashing comprising a base plate adapted to be placed over the boards of a roof and having an opening adaptedto register with the chimney opening'in the 1 root, a tubular body risingfrom said base around the opening thereof and adapted to 7 receive the chimney,'which extends through the roof, and rows of wings arranged on said base on opposlte sides of said body and the wings in each row having their inner edges next to said body connected with said base while their outer .edgesare. free and lap one another and are adapted to be intercalated with the shingles of the roof.

3. A chimney flashing comprising a base plate adapted to be placedqover'the boards of a roof and .having an opening adapted to register with the chimney opening in the roof, a tubular body rising from said base around the opening thereof and adapted to receive the chimney which extends through the'roof, and rows of Wings arranged on said base on opposite sides of said body and the Wings in each row having their inner edges next to said body connected with said base while their outer edges are free and lap one another and are adapted to be intercal'ated with the shingles of the roofs and the Win 's in each row overla in one an-- other.-

4. A chimney flashing comprising a base plate adapted to be placed over the boards 7 ot' a roof and having an opening adapted toregister With the chlmney opening in the roof a tubular body rising from said base around the opening thereof, and adapted to receive the chimney which extends through the roof; rows of wings arranged on said base on opposite sides of said body and the wings in each row having their inner edges next to said body connected With said base while their outer edges are free and lap one another and are adapted to beintercalated with the shingles of the roof; the wings in each row overlappingone another, and the inner parts of the wings of both rows being deflected downwardly to form channels on opposite sides of said body.

In testimony whereof I hereby affix my signature.

JOHN A. LOCK.

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