US2867180A

US2867180A - Strip shingle roofing

Info

Publication number: US2867180A
Application number: US677258A
Authority: US
Inventors: James L May
Original assignee: Individual
Current assignee: Individual
Priority date: 1957-08-09
Filing date: 1957-08-09
Publication date: 1959-01-06
Anticipated expiration: 1976-01-06

Description

Jan. 6, 1959 Y STRIP SHINGLE ROOFING Fiied Aug. 9, 1957 2 Sheets-Sheet 1 mmvron IL-May. BY

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Jan. 6, 1959 J. L. MAY

STRIP SHINGLE ROOFING 2 Sheets-Sheet 2 Filed Aug. 9, 1957 ma w M W Star-f r Sin '0 Eave Mould United States Patent STRIP SHINGLE ROOFING James L. May, Mobile, Ala.

Application August 9, 1957, Serial No. 677,258

Claims. (Cl. 108-7)' I This invention relates to roofing shingles of the type known in the trade as strip shingles.

An object of the invention is to provide a composition strip shingle which presents four exposed rectangular areas or butts.

A further object is to provide a strip shingle with incuts on the bottom edge which form four right angles having legs and bases of different lengths whereby the right end of each base will join the top of the adjacent leg thereby forming an opposite right angle with said leg and base.

An additional object is to provide a strip shingle having a cut or insertion at each end thereof, the cuts being parallel to each other whereby to present four legs and four bases outlining four exposed areas, and in which the said cuts on the left end will intersect the back or top edge of the strip at an angle of approximately 105, and the cut on the right will intersect the back or top edge at an angle of approximately 75.

A further object is to provide in a roof shingle a 'rectangular exposed area which when in place overlies a portion of an underlying similar strip making no less than two thicknesses on the roof at any place, the strips being produced from a minimum width of raw material and to achieve maximum coverage on the roof surface.

Another object is to provide a shingle, which when applied to a roof has longer or base edges of the angles parallel to the eave of the roof.

Another object is to provide a strip shingle which is so designed that each successive strip when applied has its bases extending toward the right, thus providing a rectangular area, with an exposed portion of said areas constituting the finished roof surface, and providing an appearance of a square butt shingle having proper sized exposed areas, tips or butts.

A further object is to provide a strip shingle which after application provides a series of rectangular butts with only one corner of each un-nailed.

An additional object is to provide a strip shingle which is so constructed that it may be nailed to the right and above each base edge and above the exposed area of the next below shingle so that the securing force between the nails will be transferred to each exposed rectangular area from the almost exposed corners, thereby securing the exposed tips against wind forces.

Another object is to provide a roof the shingles of which may be laid to provide rectangles having long bases and short sides or short bases and high or long sides.

Other objects will appear hereinafter throughout the specification.

In the drawings:

Fig'ure'l shows a strip partly broken away for the making of a plurality of shingles;

2,867,180 Patented Jan. 6, 1959 Figure 2 is a side elevation of a strip shingle which has been cut from the strip shown in Figure 1;

Figure 3 is a side elevation of a roof structure showing the eave at bottom, the gable edge at left and the ridge at top, with a plurality of strip shingles placed in position on a portion thereof, showing a plurality of exposed butts as they are placed to finish a roof with thickness of not less than two shingles at any one place; such double thickness areas of the exposed butts being rectangular and marked by full lines and having the lengths and back edges of the underlying strips determined by dotted and dashed lines and showing in full view thereon a strip shingle as illustrated in Figure 2; I I

Figure 4 is a view of cut-away section of roof structure that appears uncovered in lower left corner of Figure 3, showing the method of placing strip shingles in this corner of roof at the commencement of their application on the roof, showing the placing of portions of strips in succession one above the other: first, butt numbered 4; next butts numbered 3 and 4; next butts numbered 2, 3 and 4; also showing excesses to have been trimmed at edge of gable; and

Figure 5 is a view of a roof partly broken away in which the shingles have been shifted laterally to the left onethird of the lengths of the base edges of the butts or the length of the exposed rectangles which increases the head-lap (the space between exposed area of underlying shingle and the upper or back edge thereof). This shifting of one-third as stated makes the finished area of exposed butts three-ply or the thickness of three shingles at any one place.

In the embodiment illustrated, a strip of suitable composition of roofing materials as shown in Figure 1 is provided which is cut to provide a plurality of strip shingles from the entire width of such composition strip numbered 10. These strip shingles are indicated by the numeral 5. In order to provide the strip shingles, the strip 10 has end or cross cuts 6, and longitudinal saw tooth cuts including long cuts 16 and short cuts 18 as shown when separated from the sides of the teeth. Each strip shingle due to the cuts 6 is providedwith parallel end edges.

These end edges form obtuse angles on one end with the rear strip edge 24 and acute angles at the opposite end. As shown in Figure 2, the obtuse angle is formed at the left and the acute angle at the right of the figure.

Each strip shingle when applied is intended to be nailed at a point slightly above and slightly to the right of the apex of the incut right angle, whereat the apex of the outer right angle of the next overlying shingle will cover the nails and at relative points at the ends forming the obtuse and acute angles.

When applied, the sides of the teeth of the overlying strip shingle meet the sides of the teeth of the underlying strip shingle, or the sides of the teeth may be placed at a determined distance to the left of the underlying sides for artistic effect or to increase the thickness of the roof fifty percent if moved one-third the distance of the base or saw tooth or butt.

The base or long edges of the saw teeth, when the strip shingle is applied one over the other, form extended lines to the right parallel to the eaves.. When so imposed one upon the other, what has appeared as saw teeth becomes rectangular exposed areas .having the appearance of a square butted individual shingle. This .square butt appearance thus obtained is without slits which reduces the thickness of coverage one ply as is the case in the ordinary square butt shingle. The ends of each strip shingle regular starter strip, laid flush'with the cave over-hang, 1

and similarly at the edge of gable 9, if any. At this corner of jeave and gable end of roof, Figure 4, use a strip shingle Figure 2, placing area 4, withbasc edge 16 at and parallel with cave and side edge 18 at and parallel with gable edge of the root',-sccuring with nails away from the area 4 to be exposed. The excess is trimmed and may be used on the opposite end of the roof. Next use another strip

shingle placing areas

3 and 4 with baseedge 16 in line with base edge 16 of the preceding shingle and side edge.

lttat the apex of the obtuse angle formed by the right end and base of the preceding shingle, whereby area 3 will be caused to lie above area 4 of the preceding shingle, sccure by nailing as directed above and trim off the excess at the gable. The third shingle is similarly laid with base line 16 of area 4 extending in line with base edges of other areas 4 with side edge line 18 of area 4 meeting the apex of the obtuse angle of the preceding shingle, whereby area 3 will lie above area 4, and area 2 will lie above area 3 ofthe preceding shingle, trimming off the excess at the gable. After these three operations, full length strip shingles are similarly applied and secured until the opposite end of the roof is reached. Four courses of rectangular areas will then appear onthe roof as square butt shingles.

The invention presents a strip shingle which is self aligning in that all base lines may be kept parallel with the eaves because the base lines of the-butts of the strip being applied are made to coincide with base lines of the preceding strip shingle already in place. Should chalk lines, as is the practice in the trade, be used, such would be spaced the distance of four courses which would eliminate three such lines as is the need with shingles covering one horizontal course at the time.

In each case the exposed areas or butts lie in horizontal lines, with their base edges l6 parallel to the eaves; their side edges 18 extend in a vertical direction and are parallel to each other; the back edges 24 die in lines which are di- 7 agonal to the eaves.

End edges 6 of each strip shingle being parallel, they abut each other closely without end lap, and because of lateral progression in process of laying, no two end joints lie immediately above one another which would weaken the security of the roof. As with individual shingles, or any type of strip shingle. trimming at gable ends, valleys and ridge is done in the conventional way, removing excess.

Figure 5 shows a portion of roof and the position of.

strip shingles laid similarly to those in Figure 4 and Figure 3, except each strip has been shifted laterally to the left one-third the length of base edges 16, also show,- ingj the back edge 24 of the bottommost strip bydotted lines, the back edge of the middle strip by dashed line. and the back edge 24 of the top strip by solid line, making it visible that the similar exposed rectangular areas lie wholly within or to the left of the back edge 24 of the bottom strip and evidencing three thicknesses upon the roof. The design of this strip shingle and its related angles makes possible, by using 33% percent more pieces or strips, to obtain 50 percent more thickness on a finished roof, or that the strip shingles may be made from materials of lighter weight, laid to a three ply thickness with more security against weathering, sun-baking and more rapid deterioration at relative savings.

. 4 In Figure 3 and Figure 5, the points of nailingsstrip shingle of this design as indicated by dots at or near the apeces of the incut right angles-stress the added securing force between nails which transverses the exposed areas or butts from opposite corners, which is not possible with other similar appearing square butt shingles or with hex-tab shingles unless nails are exposed. v

The roof of this invention may be laid as quickly or more quickly than roofs of other square butt strip shingles. The laying process of this invention permits the roofer to face, work and move horizontally and to drive on more shingles before moving than if shingle strip were horizontal. In addition, the roof has the advantage of flexibility respecting the shifting of the shingles to thereby increase the head lap or side lap, thus-providinga maximum variety of design as well as control of the ply coverage or thickness of the roof. Therefore the roof of this invention may be constructed to provide any desired head or side lap by shifting shingle horizontally to the left changing the width of the exposed area, placing the vertical edges in ott-set arrangement and effecting a Dutch lap appearance, due to the fact that the exposed faces or showing are rectangular parallelograms with their bases parallel to the eaves and their sides parallel to the side edges of the roof. A pleasing variety of color designs may be provided on the roof by alternating or rotating solid colored strip shingles of difierent colors. By such rotation the colors would appear in rotated order in'vertical columns on the root, in solid colors in columns running diagonally to the .left up the roof, and in rotated colors running diagonally to the right up the roof, and rotating in colors horizontally on the roof. Rotating or any deviation makes it possible to produce a novel, variety of artistic efiects.

The above description and drawings disclose a single embodiment of the invention, and specific language has been employed in describing the several figures. It will, nevertheless, be understood that no limitations of the scope of the invention are thereby contemplated, and that plurality of saw teeth, each tooth having a long side and a short side, said long sides being parallel with the.

cave of the roof, each of said rows extending to said cave, each of said strip shingles having a rear strip edge and left and right parallel straight side edges, said left strip side edge forming with said rear edge an obtuse angle and said right strip side edge forming with said rear edge an acute angle, each of said strips having fastening means comprising nails located immediately above and to the right of the apex of the right angle formed'by the long side and short side of a pair of adjacent teeth whereby to provide a line of holding force extending across the base of each tooth.

2. A shingle roof comprising an eave, a plurality of strip shingles forming rows in diagonal relation to said cave in otfset overlapping relationship to each other each shinglehaving a plurality of teeth with a long and a short side, the long sides of said teeth being substantially parallel to said eave, each of said strip shingles having a rear strip edge and left and right parallel straight-side edges.

said left strip side edge forming with said rear edge an obtuse angle and said right strip side edge forming with-said rear edge an acute angle, each of said strips having fasten:

ing means comprising nails located immediately above- 4. The structure of claim 1, said shingles forming exedge forming with said rear edge an acute angle and formposed areas having the shape of rectangular paralleloing with the long side of one of said teeth an obtuse grams with their bases parallel with said eave. angle.

5. A strip shingle having a plurality of saw teeth, each tcgoth having a long side and a short side, the longf. side 6 References Cited in the file of this Patent 0 one tooth and the short side of an adjacent tooth orming a right angle, said shingle having a rear edge, and UNITED STATES PATENTS parallel left and right sides, said left side forming with 1,433,983 Christenson Oct. 31, 1922 said rear edge an obtuse angle, and forming with the 1,802,378 Harshberger Apr. 28, 1931 short side of one of said teeth an obtuse angle, said right 10 2,655,879 Lee Oct. 20, 1953