US1007146A - Prepared roofing. - Google Patents

Description

E. J. SGHRODBR. PREPARED ROOFING. APPLICATION FILED SEPT. 9, 1910.

1,9791% Patented 0011311911.

time STATES EDWARD J. SCI-IRODER, 'OF CHICAGO, ILLINOIS.

PREPARED ROOFING.

Specification of Letters Patent.

Application filed September 9, 1910. Serial No. 581,261.

To (171 whom it may concern:

Be it known that I, EDWARD J. SCIIRODER,

a citizen of the United States, residing at Chicago, in the county of Cook and State of Ilhnols, have invented certain new and useful Improvements in Prepared Roofing,

of which the following is a specification.

One of the objects of this invention is to provide a prepared or composition roofing having an outer protective layer adapted effectively to resist the action of moisture, heat and corrosive gases and vapors.

A further object of the invention is to impart to prepared roofing a permanent, attractive color.

These objects I attain by placing upon a roofing body of any suitable or preferred character a layer of crushed slate, the slate being rolled upon the roofing body so as firmly to attach the slate particles to said body, and to give to the slate coating a substantially smooth exterior surface. Slate being of laminated structure, the particles of crushed slate partake of the general character of flakes, matching together so as completely to' cover the asphalt or other water-A proofing material located below, thereby effectively protecting said asphalt from rain and snow and from the corrosive fumes and gases to which roofing is subjected when used upon fertilizer and chemical manufactories, etc. Moreover, by the use of the slate covering a permanent and uniform color is obtained without added expense.

In the accompanying drawings, Figure 1 is a fragmental top'plan view of prepared roofing embodying the features of my invention. Fig. 2 is a cross-sectional View,

more or less diagrammatic,

of said roofing. Roofing embodying my invention may comprise a body of any suitable or preferred character; that herein shownby way of example consists of a sheet 1 of felt saturated with a suitable waterproofing material, as, for instance, asphalt; a layer 2 of asphalt placed upon the felt; a sheet 3 of burlap saturated with waterproofing material and superposed upon the layer 2; and a coating 4 of asphalt or the like placed upon the burlap. At a suitable point in the .manufacture of the roofing I place upon the roofing body a layer of crushed slate and press.

the slate particles into close contact with Patented Oct. 31, 1911.

the asphalt coating 4 by means of suitable rolls. The slate covering is represented diagrammatically at 5 inthe drawings. Slate being of stratified or laminated texture, as distinguished from the crystalline form, the particles of crushed slate consist of flakes or laminae, which when rolled lie substantially parallel with the plane of the roofing body, and thus impart to the finished product an approximately smooth outer surface. IVhen the slate is rolled, some of the asphalt is forced. into the interstices between the slate flakes, and to the asphalt thus exuded other flakes become attached, the asphalt coating 4 thus becoming completely covered with slate.

As indicated in the drawings, some of the flakes of slate match together, these being held in place by the asphalt below; and

some of the flakes overlap the crevices existing between the other slate fragments, such' overlapping pieces being retained in place by the asphalt forced into said crevices during the rolling process. Because of its continuous character, the slate coating gives a uniform color to the roofing.

In roofing as heretofore constructed, the gravel, sand or crystalline material does not effectively protect the asphalt or other adhesive layer below it, and consequently the asphalt exposed to the action of the weather and corrosive acids deteriorates and loses its power of holding in place the gravel or other material composing the outer layerof the roofing. \Vhen the gravel-thus released is washed or blown away, other portions' of the asphalt become exposed, and

the process of deterioration goes on at an increasing rate. In roofing embodying my invention, however, the slate coverin efficiently protects the asphalt from molsture and injurious fumes, and therefore is itself efi'ectively retained in place by the asphalhi The slate imparts to the finished article the natural color of the slate, which color is permanent and uniform and is, of course, obtained without additional expense.

It will be understood that my invention is applicable to composition roofing in roll, sheet or shingle form. I claim as my invention: 7

Prepared roofing consisting of a body having a coating of adhesive waterproofing into contact with the adhesive material, said flakes lying substantially parallel with the material, andan outer protective coating of ticles providing an approximately smooth crushed slate, the flakes of slate being rolled outer surface for the roofing.

EDWARDLJ. SCHRODER.

\Vitnesses:

FRANK C. STRASSER, EBEN R. CHRISTENSEN.

adhesive coating, said flakes being matched together and overlapped so as to cove'rthe adhesive material; the layer of slate par-

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