US2248723A - Strip for roofing - Google Patents

Description

July 8, 1941. w. B, RoBlNsoN STRIP FOR ROOFING- Filed March- 12, 1937 l INVENTOR Patented July 8, 94l

ICE

3 Claims.

This invention relates to a roofing or siding strip that canbe easily and rapidly installed in such a Way that the exposed edge thereof is prevented from curling up, even when the strip is vmade Wide. 'I'he strip can be rapidly manufactured by machinery and can be packaged and shipped without vrequiring extraordinary care. No roof deck is required for installing the strips, as they can be laid across the usual rafters or studdings and, at the same time, heat insulation, as well as waterproof qualities, are provided.

The invention will be understood from the description in. connection with the accompanying drawing, in which Fig. 1 is a plan view of a portion of a roof partly broken away, showing several of the strips in position; Fig. 2 is a section along the line 2 2 of Fig. 1; Fig. 3 is a similar section of a modiiication, this section being taken through one of the rafters; Fig. 4 is a cross section of one of the strips on an enlarged scale; and Fig. 5 is a section on a larger scale through overlapping edges of the strip shown in Fig. 3.

In the drawing, reference character l indicates a few rafters or studdings of the sort that are in common use. Each strip 2 is at least as long as the-distance between two rafters or two studdings, but may be very much longer, with the ends thereof preferably terminating at rafters or studdings. 'Ihe base 3 of the strip is preferably made of heat insulating material, such as Celotex, for example. The strip, as shown in Figs. 2 and 4, is made with its upper edge 4 bevelled so that its upper surface extends farthest upwardly on a roof when said strip is installed. A corresponding recess 5 is provided at the lower side of the other edge terminating in a sloping wall 5 that corresponds in size and shape to the upper edge d, the upper wall 1 of this notch 5 being in a plane parallel to the top side of the strip, leaving a projecting portion 8 whose sides are parallel. This portion 8 overhangs or laps over the upper edge of the preceding strip when the strips are installed. Due to the fact that the upper edge 4 of each strip ts in the notch 5 of the next one, the strips are prevented from curling up.

A pre-formed layer 9 of waterproof material,

such as the well known roofing felt or sheet copper, for example, is applied to each strip, either at the factory or at the place of installation. This may be done by using asphalt or other other waterproof adhesive material. The layer 9 of waterproof material is applied to the strip in such a way that one end thereof extends beyond the end of the strip, as indicated at I2 (Fig. 1), leaving a corresponding exposed portion I3 of the strip at the other end. The purposeof this is to cover the joints along the abutting ends of the strips to prevent leakage. This waterproof layer 9 may be wide enough for its lower edge to be turned or bent around the lower edge of the strip 3 and into contact with the upper side of the notch 5, as indicated at I0 in Fig. 4. The layer 9 is prefer- Iably of pre-formed materiaLsuch as roong felt.

Crushed stone or crushed slate or the like may be applied to the upper surface vthereof in the usual manner, if desired, to enhance its appearance and wearing qualities. The base 3 of the strip may be made as a single integral piece, as shown in Fig. 2, or it may be divided into two portions, as shown by the dotted line Il in Fig. 4, the lower portion having parallel sides and the upper. portion being wedge shaped or tapering in cross section except along its projecting portion 8, which has parallel sides.

Nails I4 may be driven through the upper edges of the strips 2 and `also through the layer 3- thereon into the rafters I through the portions' that are to be covered by the lower edges of succeeding strips so that the nails will not be exposed to the weather.

In order to prevent the projecting or overlapping edges 8 of the strips from curling up, somewhat Z-shaped nails or holding members, that are made of bendable but rust-proof metal, may be employed. For this purpose the nails or holding member may be provided with prongs i 6 to be driven into the upper portions of the strips, or through them into the rafters with the straight portions Il extending downwardly in contact with the strips into which they are driven. 'I'he portions I8 of the holding members extend along the lower edges of the portions 8 of the strips and the ends B9 thereof are bent around and lie fiat against the top sides of the strips, as indicated, after the respective strips have been put in place. Or, as shown in Fig. 4, a different sort of holding member may be used which will not be visible when the strips are installed. This holding member has a headed prong 20 that enters the lower side of the portion 8 with its bent part 2i extending along the walls of the notch 5 so that its bent portion passes around the upper edge of the preceding strip when the strips are installed. A

In the modification shown in Fig. 3, the parts corresponding to those already described are indicated by the same reference characters with primes. In this modification vthe recess 5 is shaped diierently from that already described, and the upper edge t' of the strip 3' is correspondingly shaped so that the upper edge 4' of each strip ts into the notch 5' of the next strip and prevents the strip from curling up.

Slat shingles 25 may -be applied to the-strips to give the appearance of a slate roof, to decrease the danger of the strips curling and to increase the Wearing qualities without having the slate shingles overlap each other very much, if any, thus providing practically a slate covered roof or siding with a square of slate covering substantially a square of surface, instead of requir ing approximatelythree squares of slate to cover a square of surface as is necessary with the usual slate roofs. The slate shingles 25 are kept in place by nails I4' that pass through holes that are provided in them and the strips 3' and also into the rafters'where these shingles are over the rafters, and the lower end 26 of these slate shingles 25 are 4preferably made to project below the lower edges of the overlapping projections I of the strips 3 to provide drips to prevent the water from striking the edges of the strips. Also, it has been found to be advantageous to have the waterproof layer 3 that is between the slate shingles 25 and the strips wide enough so that its upper edge 9 can be bent or turned over the upper edge of the slate shingles 25 as shown in Fig. 5, thus providing a seal to prevent Water from Vbeing driven up by the wind between the upper surface of the notches 5 or 5' and the -upper surfaces of the slate shingles that extend into these notches. The waterproof layers may be made wide enough at their lower edges to be bent around the extensions 8 and their upper edges to be bent around the upper ends of the edge and having a recess in the edge of greater I slate shingles 25, so that the lower bent edge of one waterproof layer will lie in proximity to the upper edge of the waterproof layer on the preceding strip when the strips are installed, as shown in Fig. 5. The term rooiing strip in the claims is intended to include a siding strip.

I claim: y

1. A roofing ystrip comprising a base. a slate sheet on said hase, and a waterproof layer between said base and slate having its upper edge turned over the upper edge of said slate, said base having a notch along its lower edge into which the edges of a slate and waterproof layer of a corresponding strip may extend.

2. A roofing strip comprising a base having an undercut lower edge, a slate sheet on said base. and a waterproof layer between said base and slate having its upper edge turned over the upper edge of said slate and its lower edge turned under said undercut lower edge.

3. A surface covering assembly comprising courses of bases each having one marginal edge of lesser thickness than its opposite marginal thickness forming front and rear lips; the base edges of lesser thickness nesting in the recesses of bases in an adjacent course, and the iront lips overlapping the nesting bases to produce a clapboard effect; and cover pieces on said bases, said cover pieces having retroverted marginal portions interlocked with the front lips of said bases 'and having their upper edges nesting in the recesses of said adjacent course of bases.

WILLIAM B. ROBINSON.

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