Patent ID: 6010589
Filing Date: 2000-01-04
Classification: B32B,E04D,Y10T

Abstract:
A method of making a multi-layer laminated shingle comprising the steps of:(a) providing a base layer of shingle having a butt zone and a tab zone, upper and lower edges and top and bottom surfaces, with bituminous coated web between the surfaces and with granules applied to the top surface thereof;(b) providing a secondary layer of shingle having a butt zone and a tab zone, upper and lower edges and top and bottom surfaces, with bituminous coated web between the surfaces and with granules applied to the top surface thereof; and(c) laminating said layers together, with granules of the base layer sandwiched between laminated layers, with the butt zone of the base layer disposed against the bottom surface of the tab zone of the secondary layer and with the tab zone of the base layer disposed against the bottom surface of the butt zone of the secondary layer; and(d) cutting the shingle layers to predetermined length.