Solar control coating with high solar heat gain coefficient

A coated transparency, comprising:

• a. a first substrate having a No. 1 surface and a No. 2 surface;
• b. a second substrate spaced from the first substrate, with a gas-filled gap between the first substrate and the second substrate, the second substrate having a No. 3 surface and a No. 4 surface, with the No. 3 surface facing the No. 2 surface;
• and
• c. a coating formed over at least a portion of the No. 3 surface and defining a side of the gas-filled gap opposite the No. 2 surface, the coating comprising:
• i. a first dielectric layer formed over at least a portion of the No. 3 surface;
• ii. a continuous metallic layer formed over at least a portion of the first dielectric layer, the metallic layer having a thickness less than 8 nm;
• iii. a primer layer formed over at least a portion of the metallic layer;
• iv. a second dielectric layer formed over at least a portion of the primer layer;
• and
• v. an overcoat formed over at least a portion of the second dielectric layer,
• wherein the coated transparency has a solar heat gain coefficient greater than or equal to 0.6 and a heat transfer coefficient less than or equal to 0.35,
• wherein the gas-gap is filled with air or a non-reactive gas,
• wherein the first dielectric layer comprises a first film and a second film, and
• wherein the first film comprises zinc stannate and the second film comprises zinc oxide.

A coated transparency, comprising:

• a. a first substrate having a No. 1 surface and a No. 2 surface;
• b. a second substrate spaced from the first substrate, with a gas-filled gap between the first substrate and the second substrate, the second substrate having a No. 3 surface and a No. 4 surface, with the No. 3 surface facing the No. 2 surface;
• and
• c. a coating formed over at least a portion of the No. 3 surface and defining a side of the gas-filled gap opposite the No. 2 surface, the coating comprising:
• i. a first dielectric layer formed over at least a portion of the No. 3 surface;
• ii. a continuous metallic layer formed over at least a portion of the first dielectric layer, the metallic layer having a thickness less than 8 nm;
• iii. a primer layer formed over at least a portion of the metallic layer;
• iv. a second dielectric layer formed over at least a portion of the primer layer;
• and
• v. an overcoat formed over at least a portion of the second dielectric layer,
• wherein the coated transparency has a solar heat gain coefficient greater than or equal to 0.6 and a heat transfer coefficient less than or equal to 0.35,
• wherein the gas-gap is filled with air or a non-reactive gas, and
• wherein the second dielectric layer comprises a first film and a second film, the second film in direct contact over at least a portion of the first film.

A coated transparency, comprising:

• a. a first substrate having a No. 1 surface and a No. 2 surface;
• b. a second substrate spaced from the first substrate, with a gas-filled gap between the first substrate and the second substrate, the second substrate having a No. 3 surface and a No. 4 surface, with the No. 3 surface facing the No. 2 surface;
• and
• c. a coating formed over at least a portion of the No. 3 surface and defining a side of the gas-filled gap opposite the No. 2 surface, the coating comprising:
• i. a first dielectric layer formed over at least a portion of the No. 3 surface;
• ii. a continuous metallic layer formed over at least a portion of the first dielectric layer, the metallic layer having a thickness less than 8 nm;
• iii. a primer layer formed over at least a portion of the metallic layer;
• iv. a second dielectric layer formed over at least a portion of the primer layer;
• and
• v. an overcoat formed over at least a portion of the second dielectric layer,
• wherein the coated transparency has a solar heat gain coefficient greater than or equal to 0.6 and a heat transfer coefficient less than or equal to 0.35,
• wherein the gas-gap is filled with air or a non-reactive gas, and
• wherein the second dielectric layer comprises a first film comprising zinc oxide and a second film comprising zinc stannate.

A coated transparency, comprising:

• a. a first substrate having a No. 1 surface and a No. 2 surface;
• b. a second substrate spaced from the first substrate, with a gas-filled gap between the first substrate and the second substrate, the second substrate having a No. 3 surface and a No. 4 surface, with the No. 3 surface facing the No. 2 surface;
• and
• c. a coating formed over at least a portion of the No. 3 surface and defining a side of the gas-filled gap opposite the No. 2 surface, the coating comprising:
• i. a first dielectric layer formed over at least a portion of the No. 3 surface;
• ii. a continuous metallic layer formed over at least a portion of the first dielectric layer, the metallic layer having a thickness less than 8 nm;
• iii. a primer layer formed over at least a portion of the metallic layer;
• iv. a second dielectric layer formed over at least a portion of the primer layer;
• and
• v. an overcoat formed over at least a portion of the second dielectric layer,
• wherein the coated transparency has a solar heat gain coefficient greater than or equal to 0.6 and a heat transfer coefficient less than or equal to 0.35,
• wherein the gas-gap is filled with air or a non-reactive gas,
• wherein the second substrate is a glass substrate,
• wherein the first dielectric layer comprises a first film and a second film,
• wherein the first dielectric layer has a thickness in the range of 40 nm to 50 nm, the second film has a thickness in the range of 3 nm to 15 nm, and the first film has a thickness in the range of 25 nm to 40 nm,
• wherein the metallic layer comprises silver having a thickness less than or equal to 7.5 nm,
• wherein the primer film comprises titanium,
• wherein the second dielectric layer comprises a zinc oxide film and a zinc stannate film deposited over the zinc oxide film, the second dielectric layer has a thickness in the range of 30 nm to 40 nm, and the zinc oxide film has a thickness in the range of 3 nm to 15 nm,
• wherein the overcoat has a thickness in the range of 2 nm to 6 nm and the overcoat comprises titania, and
• wherein the solar heat gain coefficient is greater than or equal to 0.65 and the heat transfer coefficient is less than or equal to 0.33.

A coated transparency, comprising:

• a. a first substrate having a No. 1 surface and a No. 2 surface;
• b. a second substrate spaced from the first substrate, with a gas-filled gap between the first substrate and the second substrate, the second substrate having a No. 3 surface and a No. 4 surface, with the No. 3 surface facing the No. 2 surface;
• and
• c. a coating formed over at least a portion of the No. 3 surface and defining a side of the gas-filled gap opposite the No. 2 surface, the coating comprising:
• i. a first dielectric layer formed over at least a portion of the No. 3 surface;
• ii. a continuous metallic layer formed over at least a portion of the first dielectric layer, the metallic layer having a thickness less than 8 nm;
• iii. a primer layer formed over at least a portion of the metallic layer;
• iv. a second dielectric layer formed over at least a portion of the primer layer;
• and
• v. an overcoat formed over at least a portion of the second dielectric layer,
• wherein the coated transparency has a solar heat gain coefficient greater than or equal to 0.6 and a heat transfer coefficient less than or equal to 0.35,
• wherein the gas-gap is filled with air or a non-reactive gas,
• wherein the second substrate is a glass substrate,
• wherein the first dielectric layer comprises a first film and a second film,
• wherein the first film comprises zinc stannate, and the second film comprises zinc oxide, wherein the first dielectric layer has a thickness in the range of 41 nm to 48 nm, the first film has a thickness in the range of 35 nm to 40 nm, and the second film has a thickness in the range of 6 nm to 8 nm,
• wherein the metallic layer comprises silver having a thickness less than or equal to 7 nm,
• wherein the primer film comprises titanium,
• wherein the second dielectric layer comprises a first film comprising zinc oxide, a second film comprising zinc stannate, wherein the second dielectric layer has a thickness in the range of 28 nm to 40 nm, the first film has a thickness in the range of 3 nm to 5 nm, and the second film has a thickness in the range of 25 nm to 35 nm,
• wherein the overcoat has a thickness in the range of 4 nm to 10 nm and the overcoat comprises titania, and
• wherein the solar heat gain coefficient is greater than or equal to 0.65 and the heat transfer coefficient is less than or equal to 0.35.