I am having an a/c unit installed in my trailer.  The walls came already insulated and covered with a type of carpet like material?  The floor and the bottom of the gooseneck have indoor/outdoor carpet.  The roof is not insulated, but have been reading up here and think I can do that. 

Question.  Is there any reason why I would need to pull up the flooring carpet to insulate?  I only weekend camp a couple times a year and just want to be able to be a little more comfortable.  Will it cause problems with condensation?  I've had the trailer for 3 years and haven't had issues so far (other than the obvious condensation build up on ceiling if running space heater.) 

e.t.a.

Actually, one more question.  I can haul to Ocala (3 hours 1 way) and miss work twice (once to drop trailer off, once to pick up) and get the a/c done for $1300.  There are several RV places much closer, would it be safe to have one of them install it?  Or is there a difference with frame/weight bearing etc between horse trailers and rvs? 

Any RV dealer can install your A/C unit. However, you will have to predetermine if the supplemental roof bracing is factory installed, to accommodate the additional weight. If it is not, this area will have to be first reinforced.

Carpeting can be removed by the aid of a heat gun to soften the contact glue. It is time consuming, but if you want to properly finish the interior, it is well worth the time.

Gard