US1969074A

US1969074A - Roofing and siding element and method of producing contrasting effects thereon

Info

Publication number: US1969074A
Application number: US443602A
Authority: US
Inventors: Norman P Harshberger
Original assignee: BAKELITE BUILDING PROD CO Inc
Current assignee: BAKELITE BUILDING PROD CO Inc; BAKELITE BUILDING PRODUCTS Co Inc
Priority date: 1930-04-11
Filing date: 1930-04-11
Publication date: 1934-08-07
Anticipated expiration: 1951-08-07

Description

N. P. HARSHBERGER Filed April 11. 1930 l Il Aug. 7, 1934.

ROOFING AND SIDING' ELEMENT AND METHOD OF PRODUCING CONTRASTING EFFECTS THEREON Patented Aug. `7, 134

lROOFING AND SIDING ELEMENT AND METHOD 0F PRODUCING CONTBASTING EFFECTS THEREON Norman P. Harshbergen Pasadena, Calif., as-

signor to Bakelite Building Products Co. Inc., New York, N. Y., a corporation of Delaware Application April 11, 1930, Serial No. 443,602

s claims.

(Cl. 91-67-9) f This invention relates to improvements in 6. In the strip of material shown, it is desired t roofing and siding elements and method of producing contrasting effects thereon.

In the composition roofing art, it is4 frequently desirable to producedesigns or lines of demarcation on roofing strips`to simulate a plurality of individual shingles. Heretofore, said designs have been formed mainly by coloring certain portions of the surface differently from other portions thereof. Lines of demarcation have 'also been produced by depressing certain por-v tions of the surface to Acreate shadow effects. However, when a material is depressed which is surfaced with mineral 'matter of the usual 5.. coarseness, the said mineral matter is likely to rupture the felt base and to weaken the material.

It is one of the objects of this invention to provide improved roofing and siding material and method of producing contrasting effects Ythereon in which lines of demarcation are formed by depressing portions of the surface, but in which no weakening of the felt base results from creating said depressed. portions.

A`more specific object of this invention is to provide an article and method of the class described in which the material is surfaced with relatively fine mineral particles in the areas which are' to be depressed, so that the'fabric base will not be cut into as is now the case where pressure is 4exerted upon the coarse minf eral material.

A further object of thisinventions to provide roofing and siding material and method of producing the contrasting effects thereon which is simple, effective and well adapted for the purpose described.

With the above and other objects in view, the invention consists of the improved roofing and siding material and method of producing ccnltrasting effects thereon, and all its parts and combinations as set forth in the claims, and all equivalents thereof.

Ink the accompanying drawing illustrating one embodiment .of thepreferred form of the in- 45.. vention, in which the same reference numeralsv entire face, the said coarse particles would dig to produce ktransverse lines of demarcation/so 4that the strip will simulate a plurality of individual shingles. Accordingly, the major portion of the face of the strip is covered with a layer of crushed slate or mineralmaterial 7 of the usual coarseness, Narrow areas 8 are protected during this step of the method. ASubsequently `the protecting means is removed and the areas 8 are thenl covered with comparatively ne particles of mineral material 9. Next, pressure is exerted on the strip by any suitable means to form recessed portions 10, in which the bituminous material is depressed, and in which the fine particles of mineral material are pressed down with said bituminous material adjacent the felt base. Due to the fact that fine particlesof mineral matter are employed to cover the "portions of the surface which are'to be depressed, these fine particles will not dig into the fabric base to weaken the same when pressure is exerted to create the recesses 10. If a coarse mineral matter such as is nowemployed -in standard practice, were used to cover the into the felt base to weaken the latter along the depressed lines.

In the resulting product, the lines of demarcation will stand out prominently in view of theA fact that a shadow effect will be 'crated,'and in view of the fact that the fine mineral material therein will give a slightly different eiect from the mineral material of the usual coarseness which is used on the other portions of the strip. Substantially.y the same result can be produced by using a comparatively fine stone, preferably in a double layer, over the entire face of the web, and by depressing portions of the surface along desired lines or in desired areas as above described. With this method, there will be no danger of cutting into' the fabric base, and the shadow effects will be produced as effectively. 'Ihere will not, however, be the slight difference of appearance between the mineral particles in the depressed areas and the mineral particles on the rest of the strip as 'in the preferred form where mineral material of two degrees of coarseness is employed. l y From the foregoing description, it may be seen that a very desirable method has been provided in which contrasting effects are produced in a very novel manner by depressing portions of the surface, and in which no weakening of the fabric base results from creating said depressed portions.

What I claim is:

1. As an article of manufacture, roonng and siding material comprising 'a fibrous base presenting a granulated-particle surface secured to said base byfaebituminous adhesive layer. said surface presenting depressed gareas, said depressions extendingf/into the adhesive layer substantially close to but not into the base, and said depressed layer presentinggranulated material of greater ilneness than that on the undepressed portions and being substantially on a level with the depressed bituminous surface, the

granular surfacing particles to different areas of the surface ofl a saturated and bituminous `coatedfabric base, and `depressingl the areas surfaced with the small sized particles until the l particles are close to' the fabric base to accentuate the contrast, the depth of the depression being limited by the size of the particles' to avoid puncturing the fabric.

3. A` composition roofing and siding element comprising a saturated fibrous base having a bituminous coating material surfaced with large and small sized granular surfacing particles applied to different areas, the parts of the surface covered with the small sized particles being de pressed close to the fabric and the depth of the depression limited by the size of the particles to avoid puncturing the fabric.

NORMAN P. HARSHBERGER.