Seems that if housings are listed for damp location, the trims wouldn't matter after all.

This is off the Halo site, and a typical can.
Be safe and check the listing of the fixture housing.


Installation Features
7 1/2" height allows use in 2x8 construction.
Housing adjusts for ceilings up to 1 1/2" thick.
Shipping insert protects socket from paint overspray.
Listings
UL Damp Location
UL Feed Through
CSA Certified
IP Rated


[This message has been edited by russ m (edited 12-31-2003).]