Roofing shingle

Details Roofing shingle Roofing shingle

1990-05-10

1991-10-01

Scherbel, David A.

Static structures (e.g., buildings)

Lapped multiplanar surfacing; e.g., shingle type

156260, 156279, E04D 100

Patent

active

050521624

ABSTRACT:
This invention provides a process which automatically and in a continuous and uninterrupted manner makes a roofing shingle by applying granules to the top surface of an asphalt impregnated glass mat, laminating a narrow strip of bituminous coated glass mat to the bottom side of a coated glass mat, said narrow strip being cut from said impregnated glass mat and being inverted before said laminating step and cutting the laminated product to produce a laminate having cut-out areas between the remaining tabs. The final shingle is made from a single glass mat which is processed into a two level shingle, each level being made of a portion of the original glass mat with each level having exposed granules. '

REFERENCES:
patent: 1698891 (1929-01-01), Overbury
patent: 1767374 (1930-06-01), Kirschbraun
patent: 1829886 (1931-11-01), Yates et al.
patent: 3180783 (1965-04-01), Walker et al.
patent: 3998685 (1976-12-01), Czyzewski et al.
patent: 4198257 (1980-04-01), Pfaff
patent: 4233100 (1980-11-01), Cunningham et al.
patent: 4717614 (1988-01-01), Bondoc et al.
patent: 4729814 (1988-03-01), Jennus

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