Coated roofing materials
A roofing material is provided that includes an asphalt impregnated substrate comprising a first surface defining an upper side of the shingle and an opposed a second surface defining a lower side of the shingle, wherein the substrate includes a headlap portion, a tab portion, and a nail zone situated between the headlap portion and the tab portion; an adhesive on the lower side of the shingle; a plurality of granules embedded in the first asphalt coating, forming a top face that includes the granules and a partially exposed first asphalt coating; and at least one anti-stick coating located on the first surface of the shingle on at least one of the headlap portion and the tab portion.
1 . A coated shingle comprising:
a substrate comprising a first surface defining an upper side of the shingle and an opposed a second surface defining a lower side of the shingle, wherein the substrate includes a headlap portion, a tab portion, and a nail zone situated between the headlap portion and the tab portion;
asphalt impregnated within the substrate, such that a first asphalt coating is present on the first surface of the substrate and a second asphalt coating is present on the second surface of the substrate;
an adhesive disposed upon the lower side of the shingle;
a plurality of granules embedded in the first asphalt coating, forming a top face that includes the granules and a partially exposed first asphalt coating; and
0.0005 kg/m2 to 1 kg/m 2 of at least one anti-stick coating located on the first surface of the shingle on at least one of the headlap portion and the tab portion.
2 . The coated shingle of claim 1 , wherein the coated shingle further includes a primary release section located on the lower side of the coated shingle, where the primary release section comprises a parting agent material, the parting agent material being included on the shingle in an amount from 0.0005 kg/m2 to 1 kg/m 2 .
3 . The coated shingle of claim 1 , wherein the anti-stick coating is selected from metal salts of fatty acids, silanes, siloxanes, silicones, silicone rubbers, silica nanoparticles, polysilazanes, waxes, styrene-butadiene rubbers (SBR), esters of acrylic polymers, maleated polypropylene, polyolefins, acrylic, acrylic copolymers, self-crosslinking acrylate polymers, vinyl acetates, polyurethanes, acrylated urethanes, fluoropolymers, poly propyl methacrylate, poly propyl methacrylate with fluorosalts, and combinations thereof.
4 . The coated shingle of claim 3 , wherein the acrylic polymers are core-shell polymers or self-crosslinking polymers.
5 . The coated shingle of claim 1 , wherein the coated shingle is a laminated shingle.
6 . The coated shingle of claim 1 , wherein the anti-stick coating is located on at least one of the headlap portion and the tab portion.
7 . The coated shingle of claim 1 , wherein the anti-stick coating is applied to the headlap portion and extends from a first edge of the coated shingle to a second edge of the coated shingle and has a width in the range of 1 cm to 16 cm.
8 . The coated shingle of claim 1 , where the anti-stick coating at least partially covers the nail zone.
9 . The coated shingle of claim 1 , where the coated shingle includes a strip of reinforcement material in the nail zone.
10 . The coated shingle of claim 1 , wherein a coated region of the coated shingle exhibits a bond strength to a sealant on a second shingle greater than 3 lbs. of force.
11 . The coated shingle of claim 1 , wherein the anti-stick coating is a first anti-stick coating located on the headlap portion and a second anti-stick coating is located on the tab portion, and the first anti-stick coating and the second anti-stick coating are different.
12 . The coated shingle of claim 1 , wherein the anti-stick coating has a surface energy that is in the range of 10 mN/m to 70 mN/m.
13 . The coated shingle of claim 1 , wherein the percent difference in surface energy between the anti-stick coating and the granules is less than 35%.
14 . The coated shingle of claim 1 , where the anti-stick coating at least partially covers the nail zone, and the anti-stick coating the provides a bond strength to a sealant on an adjacent shingle greater than 3 lbs. of force and a lap shear strength less than 50 1bs.
15 . A stack of coated shingles comprising:
at least a first coated shingle and a second coated shingle, each coated shingle comprising:
a substrate comprising a first surface defining an upper side of the shingle and an opposed a second surface defining a lower side of the shingle, wherein the substrate includes a headlap portion, a tab portion, and a nail zone situated between the headlap portion and the tab portion;
asphalt impregnated within the substrate, such that a first asphalt coating is present on the first surface of the substrate and a second asphalt coating is present on the second surface of the substrate;
an adhesive on the lower side of the shingle;
a plurality of granules embedded in the first asphalt coating, forming a top face that includes the granules and a partially exposed first asphalt coating; and
0.0005 kg/m2 to 1 kg/m2 of at least one anti-stick coating located on the first surface of the shingle on at least one of the headlap portion and the tab portion,
wherein the first coated shingle and the second coated shingle are oriented in a stack such that the upper side of the first coated shingle is in contact with the upper side of the second coated shingle.
16 . The stack of coated shingles of claim 15 , wherein each of the first coated shingle and second coated shingle further includes a primary release section located on the lower side of the coated shingle, where the primary release section comprises a parting agent material, the parting agent material being included on the shingle in an amount from 0.0005 kg/m2 to 1 kg/m 2 .
17 . The stack of coated shingles of claim 15 , wherein the lap shear force required to separate the first coated shingle from the second coated shingles is less than 80 lbs. of force.
18 . The stack of coated shingles of claim 15 , wherein a bond strength between the nail zone of the first coated shingle and the adhesive of the second coated shingle is greater than 3 lbs. of force, according to modified ASTM D6381M-15 (2020).
19 . A method for stacking coated shingles comprising:
(i) providing a plurality of coated shingles, wherein each of the coated shingles comprise:
a substrate comprising a first surface defining an upper side of the shingle and an opposed a second surface defining a lower side of the shingle, wherein the substrate includes a headlap portion, a tab portion, and a nail zone situated between the headlap portion and the tab portion;
asphalt impregnated within the substrate, such that a first asphalt coating is present on the first surface of the substrate and a second asphalt coating is present on the second surface of the substrate;
an adhesive on the lower side of the shingle;
a plurality of granules embedded in the first asphalt coating, forming a top face that includes the granules and a partially exposed first asphalt coating; and
0.0005 kg/m 2 to 1 kg/m 2 of at least one anti-stick coating located on the first surface of the shingle on at least one of the headlap portion and the tab portion; and
at least one release section on the lower side of the shingle; and
(ii) stacking the plurality of coated shingles such that the upper side of a first coated shingle in the plurality of coated shingles is in contact with the upper side of a second coated shingle and the lower side of the first coated shingle is in contact with the lower side of a third coated shingle, such that the release section on the first coated shingle is in contact with the adhesive of the third coated shingle.
20 . The method of claim 19 , wherein the release section comprises a parting agent material, the parting agent material being included on the shingle in an amount from 0.0005 kg/m2 to 1 kg/m 2 .
21 . The method of claim 19 , wherein the anti-stick coating is selected from metal salts of fatty acids, silanes, siloxanes, silicones, silicone rubbers, silica nanoparticles, polysilazanes, waxes, styrene-butadiene rubbers (SBR), esters of acrylic polymers, maleated polypropylene, polyolefins, acrylic, acrylic copolymers, self-crosslinking acrylate polymers, vinyl acetates, polyurethanes, acrylated urethanes, fluoropolymers, poly propyl methacrylate, poly propyl methacrylate with fluorosalts, and combinations thereof.
22 . The method of claim 19 , wherein the lap shear force required to separate the first coated shingle from the second coated shingles is less than 80 lbs. of force.