Rain-water LEAK vs Dometic Penguin A/C roof unit..??

Newmar requires 2(two) gaskets for each AC unit. The 2nd gasket, you only use 1-- 14 inch side section. This is the piece that blocks off intake from exhaust. You will see it when you remove the AC unit. Some Newmar Penguins used a 4 inch square gasket around the cold air exhaust port. Either way you will see it when you pull the unit. Doug