Roofing material and method of making the same
View Patent ↗A roofing material comprising an upper surface and a lower surface, wherein the upper surface includes reduced-particle size granules and may further include a reduced-thickness face coating. The thickness of the upper surface is related to the particle size of the granules deposed on the face coating. A smaller particle size granule than those used in traditional roofing shingles is utilized in the upper surface which may allow for a reduced-thickness face coating while not sacrificing the retention of the granules on the surface of the roofing material or desired physical characteristics. The face coating may include a reduced amount of filler material, such as mineral fillers, than face coatings of traditional roofing materials.
1. An unproved roofing material comprising an upper surface and a lower surface,
wherein the upper surface comprises:
an upper face coating comprising asphalt and having a thickness of from about 14 mils to about 25 mils throughout said upper surface; and
one layer of granules deposed on the upper face coating having an average particle size from about 23 mils to about 33 mils, and
wherein the lower surface is a traditional lower surface without a reinforcing backing comprising a lower face coating comprising asphalt and finely divided materials adhered thereto, and wherein said lower face coating is substantially planar and has a substantially uniform thickness throughout said lower surface.
2. The roofing material according to claim 1 , wherein the upper face coating further comprises a filler material.
3. The rooting material according to claim 2 , wherein the filler material comprises about 55% to about 75% of the upper face coating.
4. The roofing material according to claim 2 , wherein the filler material comprises about 60% to about 68% of the upper face coating.
5. The roofing material according to claim 2 , wherein the filler material comprises about 64% of the upper face coating.
6. The roofing material according to claim 1 , wherein the upper face coating is an asphaltic face coating.
7. The roofing material according to claim 1 , wherein the upper the coating thickness is about 14 mils.
8. The roofing material according to claim 1 , wherein the granules have an average particle size of 23 mils.
9. The rooting material according to claim 1 , wherein the roofing material is selected from the group consisting of roll roofing, laminated shingles, and single layer shingles.
10. An improved roof material comprising an upper surface and a lower surface,
wherein the upper surface comprises:
an upper the coating comprising asphalt and having a thickness of from about 14 mils to about 25 mils throughout said upper surface; and
one layer of granules deposed on the upper face coating having an average particle size from about 23 mils to about 33 mils; and
wherein the lower surface is a traditional lower surface without a reinforcing backing comprising a lower face coating comprising asphalt and finely divided materials adhered thereto, and wherein said lower face coating is substantially planar and has a substantially uniform thickness throughout said lower surface; and
wherein weight of the roofing material is reduced by at least about 8% to about 20% compared with a weight of a control roofing material made using standard manufacturing processes and granules of a standard size.
11. The roofing material according to claim 10 , wherein the weight of the roofing material is reduced by about 20% compared with the weight of the control rooting material.
12. The rooting material according to claim 10 , wherein the weight of the roofing material is about 166 pounds/square.