Thick shingle
AssigneeElk Corporation of Dallas
InventorsAlfred B. Malmquist, Matti Kiik
Life of this patent
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Abstract
A series of roofing shingles (200, 240, 260, 280) are disclosed which have multiple tabs across the exposed width of the shingle. A polymer foam layer is bonded to an asphalt shingle material to form the roofing shingle. The polymer foam is thicker at certain of the tabs than others to provide a pleasing layered appearance to the roof. The tabs can also be varied in width and length relative to adjacent tabs.
Claims11
A roofing shingle, comprising:
- a weatherproof asphaltic composite material having a weatherproof side and an underside, the shingle of predetermined width, the material consisting of a lower layer of asphalt, an intermediate layer of a base made from a material selected from the group consisting of fiberglass and felt, an upper layer of asphalt and a layer of weather resistant granules, the material having at least one key way formed there define a plurality of tabs across the width of the shingle, each tab defining an exposed edge;
- a foam layer bonded to the underside of the material, the foam layer having a thickness decreasing from the exposed edges of the tabs toward a back edge of the material, the foam layer having a different thickness at the exposed edge of a first tab then at the exposed edge of a second tab.
A roofing shingle, comprising:
- a first layer of weatherproof asphaltic composite material having a weatherproof side and an underside, the material consisting of a lower layer of asphalt, an intermediate layer of a base made from a material selected from the group consisting of fiberglass and felt, an upper layer of asphalt and a layer of weather resistant granules, said material having an exposed portion defining a plurality of tabs across a width of the material, the width of each tab being different than the width of adjacent tabs, the length of each tab extending from a back edge to an exposed edge on each tab being different than the length of adjacent tabs;
- a polymer foam layer bonded to the underside of the material in the exposed portion, the foam layer having a predetermined thickness at the exposed edge of each of the tabs, the predetermined thickness at the exposed edge of at least one of the tabs being different than the predetermined thickness of the foam layer at another of said tabs.
A method for making a roofing shingle from a weatherproof asphaltic composite material having a weatherproof side and an underside, the material consisting of a lower layer of asphalt, an intermediate layer of a base made from a material selected from the group consisting of fiberglass and felt, an upper layer of asphalt and a layer of weather resistant granules, comprising the steps of:
- forming a plurality of tabs across the width of the material in an exposed portion;
- bonding a continuous layer of flexible polymer foam to the underside of the composite material within the exposed portion, the polymer foam having a thickness on a first of said tabs different that the thickness on another of said tabs.
Dependencies are inferred from the claim text.