US1445777A - Roofing material - Google Patents

Description

1 l l/ A g i., Il u Feb. 2U 19230 atented heb. ll I2..

THOMAS 1B. LJEHON, OJF CHICAGO, ILLINOIS, ASSIGNOR TO THE LJEHON COMIANY, OF CHICAGO, ILLINOIS, :A CORPORATION OF ILLINOIS.

ROOJFING MATERIAL.

Application led April 25, 192.1. Serial No. 464,103.

To all whom it may concern.'

Be it known that I, 'IHoMAs B. LEHON, a citizen of the United States, and a resident of Chicago, inthe county of Cook and State of Illinois, have invented certain new and useful Improvements in Roofing Materials, of which the following is a specification, reference being had to the accompanying drawings.

My invention' relatesto improvements in that type of roofing that is made in sheet form and used either in long strips of the width of the original sheet or in small sheets or pieces cut into the sh-ape and size of shin- I@ gles and laid in overlapping relation in the way of an ordinary shingled roof. Such roofing material as now very generally made comprises a base of fibrous material to which asphalt or similar plastic material is applied a@ while hot and forced into and upon the fabric base by suitable rollers, and having upon one surface of the sheet soI formed a coating of comminuted or granular material, such as rock or slate, which is pressed upon thesheet at and adheres thereto. Other roofing material of this same general type is made by employing asbestos libre and cement rolled into sheet shape .while in a heated condition. I have found that by having imparted to such au roofing materials at intervals a series of corrugations that give to the material alternate channels and ridges a roofing is provided Ill that is superior in many respects to thetype.

of roofing referred to that is now in general It use, all asis hereinafter more particularly pointed out. l

In the accompanying drawing,- Fig. l is a perspective view of a roll of flexible roofing embodying my improvement; Fig. 2 is a perspective view of a piece of such roofing and of a size designed to be used as a shingle; p

Fig. 3 is an enlarged plan view of a por; tion of a shingle coated with granular maat terial and provided with corrugations there- 1n; and

Fig. 4 is an enlarged 'cross-sectional view through the shingle shown in Fig. 3.

Referring to the.- several figures of the te drawing, A represents a roll of flexible roofing in which the lines extending longitudinally thereof are intended to indicate the corrugations that are shown more clearly in Fig. 4 wherein, is shown an enlarged sectional view of a piece out from such a roll and designed to be used as a separate shingle. A complete shingle is shown in Fig. 2 and is designated as B, as are also the enlargedI portions of such shingle that .are shown in Figs. 3 and 4.

The shingle B, as shown, comprises a base a of fibrous material that, as usual, has been impregnated and coatedwith asphalt or similar plastic material while heated and upon the surface of which, while the said coating material was hot, has been preed so as to adhere therto a quantity of granulated material such as rock, slate, or other similar suitable substance. To this granular-coated roofing so formed, I impart a plurality of 7o corrugations, which is preferably done while the long sheet of material is in a warm and plastic condition and by passing such sheet between a pair of fluted rolls. Each of the ridges that is thus formed in the granularcoated or upper surface is indicated by c and the corresponding ridges that appear on the-other surface are indicated by d. While any desired form of corrugation may be thus impressed upon the material, I have shown a form wherein each ridge has, as is clearly shown in Fig. 4,a short and comparatively steep incline on one of its sideswhile the other side is comparatively long and slopes very gradually toward and merges into the short, steep side wall of the next ridge. So forming ythe two sides of each ridge, while still preserving suitable channels or gutters on the face of the material to facilitate the carrying away of rain-water, will present a more aesthetic appearance to the roof as a whole when viewed from a distance owing to the manner in which shadow effects are produced by such ridges, and hence I prefer such formation of the ridges.

A` piece of roofing material corrugated as shown and described will, of course, be laid so that the corrugations extend at an angle to the eaves of a roof-and will, therefore,` provide a plurality of channels for conducting rain-water offv of the roof, but another and very important object attained is the imparting' of strength or rigidity to the materia] so that it better resists any tendencyespecially when in the form of a shingleto turn or warp, as frequently is the case with shingles of this type as heretofore constructed. *A n, i

A roofing sheet or shingle comprising a uniformly corrugated layer of plastic material Witha layer of grit embedded in and covering the layer of corrugated plastic material is no-t claimed broadly herein for the reason that such broad claims have been made in my copending application for patent on roofing material, Serial No. 559,327, iled May 8, 1922.

What I claim as my invention and desire to secure by Letters Patent, is-

1. A roofing member comprising fibrous and plastic materials -associated together and having a series of corrugations formed in its Jfront and back surfaces.

2. A lexible roofing member coated on one of its facesvvith granular material, the body THOMAS B. LEHON.

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