US2244970A - Flashing fastener - Google Patents

Description

June 10, 1941. R V, SOUCY l22441597() l FLASHING FASTENER Filed June 21, 1939 @@@QQQQCC/ @Q5 @Q5/f @@@QQQQQQQ ttorneg Patented June 10, 1941 UNITED', STATES," PAT-ENT A- orifice FLASHING FASTENER l Joseph R. V. Soucy, Somerville, Mass.

Application June 21, 1939, Serial No. 280,300

8 Claims. (Cl. 10S-26) The present invention relates to building construction and more particularly to the construction employed at the base of walls, chimneys, or other places where an upwardly inclined wall meets a relatively downwardly inclined wall, and in particular to the base flashing construction employed at these places.

The construction according to the present invention finds utility at corners of the roof, at the j-oint between the roof and the wall, at chimney and roof joints and at any other place in building construction where rain water or the like is to be carried 01T over to sections that form an angle with each other. Y

Metal flashing are commonly used for this purpose 'and in 'such cases the ilashingof the upper element is lapped Iove-r the flashing of the lower element so that the water rolling off the upper flashing will now on to the lower ashing without leaking behind the lower flashing.

`The construction usually followed in providing water-proof jointsis that of laying the first layer or base flashing and then securingthe upper flashing 'to this. In order to hold these ilashings together in intimate contac-t with each other, it is common practice to na-il theupper flashing where it laps over the lower flashing, to the lower flashing and onto the roof. These nails, even though they are covered with pitch or tar, frequently form sources through which Athe water seeps into the building. While in some cases attempts are made to cover the nailed spots with a second flashing, frequently, however, this is not done and as a result leaks occur which are very difficult to nd.

|In the present invention, a construction is provided which avoids the necessity of driving any nails through the base iiashing and aft the same time provides a means for securin-g the base flashing to the roof or other place where it is laid. In this respect the present invention relates in particular to a base flashing fastener which cooperates wit-h the base flashing to provide a perfect water-proof joint which will permanently secure the base flashing in plac-e and provide a permanent water-proof joint under the most severe weather conditions.

In the present invention the ordinary type of metal base flashing may be used and secured without ythe necessity of soldering, although soldering may be employed if desired. The construction in the present invention is obtained at no extra building cost and m-ay be used at a lower labor cost than the systems commonly employed at the present time.

The present invention will be more fully described in connection with an embodiment of the sam-e described below in connection with the drawing thereof, in which- I Figure `1 illustrates the construction of the present invention as applied to .alb-ase flashing at the joint between the `wall and the roof 'of a building.

Figure 2 is a perspective view partly in fragmentary section of the base hashing fastener of the present invention, and, v

Figure 3 shows a plan view of the built in metal strip forming a detail of the construotionillustrated in Figure 2.

In the present invention there is employed a fiat metal sheet I which may be made of copper, tin or any other suitable metal used in Vflashing constructions. This copper strip is shown both in Figures 2 and 3. It may be made of any convenient length and vwidth depending upon the construction in which it is to be used. The sheet or strip I is provided with perforations 2, 2, 2, etc., around the long edge of the strip, preferably at both sides. These perforations may be circular lor of any other type. The strip is` also provided with upwardly projecting flaps 3, 3, 3, etc., which are punched out from the metal of the strip and bent in an upward direction.

A's indicated in Figure 3 these strips may be punched alternately from one half to the other hal-f of the strip. The copper strip I as shown in Figure 2 is built into a sheet 4 of roofing material.

As illustrated in Figure 2, the roong material may comprise a base sheet 5 which has been covered with pitch 6 or other adhesive material upon which the copper strip I may be placed so that the pitch may permeate the perforations 2, and also the perforations 'I of the punched out tongues 3. A second sheet of roof material 8 is then laid over the base sheet with the upward extending tabs 3 projecting through slots out in the copper sheet 8. The sheet 4 so constructed will therefore have buried in it the copper strip with the upwardly extending tabs projecting through the top surface. The sheet so constructed may be bent at an angle as indicated by the upward flap 9 or l'a''d flat if desired lagainst the intersection of the angle to which the flashing is to be applied. This sheet 4 is secured to the roof in the same manner that the ordinary roof material is secured, preferably by cement pitch or other adhesive material.

As indicated in Figure 1 the roof I0 is usually covered with pitch II over which is laid a Water proof material I 2 which may be a felt or other type of roof material. This covering is laid in the usual course before the placing of the base flashings so that the water from the base flashings will drain or flow on to the top open roof at a point where *the rain Water is usually received. When the roof has been so covered, the rbase hashing fastener 4, as illustrated in Figure 2 is cemented in place at the joint between the roof and the wall I3 as indicated in Figure 1. After |this has been secured the metal base hashing I4 is secured in place as indicated in Figure 1. The tabs 3 are then pressed down over the lower edge of the metal base flashing I4 which holds this base hashing rmly against the wall I3. In Figure 1 the invention is shown as ap,-

plied to a roof Where the wall ends. In this case the coping I5 is laid with a metal coping hashing beneath it which laps'over as indicated in Figure l, the base hashing I4 so that as water drains from the coping it will how on the outside of the metal base hashing and then over the outer surface of the base flashing fastener to the roof. It will be seen in *this construction that there is no possibility of any water seeping down into the roof llby the means holding this base' hashing in place and that this base flashing is securely held practically all along its edge thus forming a secure joint and preventing seep-4 age of Walter beneath the base hashing fastener itself. This base flashing fastener, may of course if desired, be carriedup higher than that .indicated in Figure 1, although this is not usually necessary because the flaps 3 provide means for pressing the base flashing into such intivmate contact with thefastener'that a waterproof joint for practically all purposes is provided.

`Aspreviously stated the invention hereinillustrated is `shown in connection with a base' f'lashing'atV the Ajoint ofthe roof and wall. It may vofV course be applied to any overhanging l element-in the roof Where a metal base flashing is used.v Y

' Having now described my invention, I lclaim:-

1. In combination withv a roof, a base hashing fastener comprising a piece of sheet roofing material positioned to lie inA face contact with the roof and to be cemented to the roch-having .upwardly extending metal hngers dressed over uthe ed'ge of the base hashing positioned to lie in face to face relationship with said fastener.

.ing sheet having a metallic sheet embedded therein with metal fingers projecting through said roohng sheet aligned in a straight line with the edge of the base flashing and dressed over the edge of the base hashing -to hold the same firmly in place.

3. A base hashing fastener comprising a plurality of sheets of roofing material having therebetween a metallic sheet, all said sheets being cemented together and said metallic sheet having a series of projecting hngers projecting through the sheets of roohng material only on one surface thereof.

4. A base hashing fastener comprising a plurality of sheets of roofing material having therebetween a metallic sheet with edge perforations and turned up hnger portions out of the sheet itself, adhesive material permeating said perforations and adhering the sheets and the metallic sheet into a single unitary structure with the fingers projecting on one side through the top sheet. Y

5. A base hashing fastener comprising a plurality of sheets of roofing material having therebetween a metallic sheet with edge perforations andy turned up finger portions out of the sheet itself, adhesive material permeating said perforations and adhering the sheets and the metallic ,sheet into a'rsingle unitary structure witlrthe fingers projecting on one side through the top sheet, said hngers being aligned with each other.

6. In a base flashing fastener of sheet roohng material having embedded therein a metal sheet insert as described above, said metallic Vsheet insert having perforations spaced along but in from the edges thereof and a plurality of aligned projecting tongues punched upwards from the sheet on one side thereof.

'7. In a base flashing fastener of sheet roofing material having embedded therein a metal sheet insert as described above, said metallic sheet insert having perforations spaced along but in from the edges thereof, and a plurality of aligned projecting tongues punched upwards to forma vertical angle with the sheet on one side thereof.

8. A base hashing fastener comprising in layers a sheet roofing material, a metallic sheet having perforations therethrough and a plurality of tongues pressed out of said metallic sheet and extending at an angle therewith, a second sheet of roohng material having said tongues from said metallic sheet extending therethrough, a pitch compound permeating the layers betweensaid sheetsand hlling said perforations and forming a permanent binding means for said sheets. Y v Y JOSEPH R. V. SOUCY.

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