Is there roof sealent under the ac on the roof?

[firstone]

What seals out water on the roof where the AC is mounted? I have looked all over and cant find anything, even on mounting videos. If there is sealent, how do you get under the sucker to inspect it? I sure cant see it from the top side.

Sorry for the dumb question just got to know.

 

[jnbhobe]

The AC is held on with 4 - 1/4 x20 x 7in bolts, there is a heavy foam gasket around the 14 x 14 opening in the roof, The four bolts are tightened till the gasket is compressed about 60%.

 

[cookie]

There is no sealant. The AC manufacturer uses a thick foam gasket. It starts out at about an inch+ thick and when the AC mounting bolts are tightened the gasket gets compressed to about a half inch. Then it is sealed.

Peace
Dave