Installing A/C, Sealant on Gasket?
A/C unit died an early death, so I'm replacing it with the same. lol
In removing the old, it appears the factory used some kind of clear sealant on the roof side. It's some kind of high bond stuff too. This made it extremely difficult to break the seal free and remove it without tearing the roof material. In fact, it did a little. Very frustrating. It took almost all my brute strength to pry and lift, pry and lift before it would finally come loose. At that point, I had to go inside and meticulously hold down the roof material to keep it from ripping and tearing WHILE I pushed against the 100 lb. unit. Almost an hour just to do all this.
Everything I've read on the Airexcel website and watched regarding installing a new gasket says not to use any sealant. So why on earth does Northwood do that? Have they had problems with leaks? Should I apply sealant?
In removing the old, it appears the factory used some kind of clear sealant on the roof side. It's some kind of high bond stuff too. This made it extremely difficult to break the seal free and remove it without tearing the roof material. In fact, it did a little. Very frustrating. It took almost all my brute strength to pry and lift, pry and lift before it would finally come loose. At that point, I had to go inside and meticulously hold down the roof material to keep it from ripping and tearing WHILE I pushed against the 100 lb. unit. Almost an hour just to do all this.
Everything I've read on the Airexcel website and watched regarding installing a new gasket says not to use any sealant. So why on earth does Northwood do that? Have they had problems with leaks? Should I apply sealant?
