Our AC duct(s) are leaking cold air into the roof. I pulled the shroud around the bathroom roof vent which exposed the gap between the roof and the ceiling. When I did that could feel plenty of cool air blowing.
Is there an easy way to resolve this or would I need to rip open the ceiling? Maybe like spray something inside?
2010 Coachmen Mirada 34BH, class A, 34.75' long, GVWR 22,000 lbs. 2005 Fleetwood Resort TNT 25QB, hybrid, 27.5' long, GVWR 6,600 lbs. God bless!
Most ceiling registers used in RVs have a louvered section that will come out. Once that is removed you will be able to see where the assembly attaches to the duct work. That is where it is often not sealed well.
Most likely the ducts were not sealed properly at the A/C unit and/or the various registers. To check the unit connections you need to drop the ceiling assy. of the unit. To check the registers; generally the louvered portion pops out. Any gaps in the connections can be sealed with metallic duct tape available at HVAC or plumbing supply houses.