CPC E04D 5/10 (2013.01) [E04D 5/06 (2013.01); Y02A 30/254 (2018.01); Y02B 80/00 (2013.01); Y10T 156/10 (2015.01); Y10T 428/31913 (2015.04); Y10T 442/10 (2015.04)] | 20 Claims |
1. A multilayer membrane, comprising:
a first layer,
wherein the first layer comprises a UV stabilizer and a thermal stabilizer,
wherein the first layer comprises a topmost layer;
a second layer,
wherein the second layer comprises a white layer, and
wherein the second layer directly contacts the first layer;
a third layer,
wherein the third layer contacts the second layer; and
a fourth layer,
wherein the fourth layer contacts the third layer.
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