How To Seal An Roof Top A C Unit

In this somewhat lengthy video i fix the leak at the a c in our 2006 sierra toy hauler.

How to seal an roof top a c unit.

The sealant held the ac unit better than the 4 bolts that dometic provides. However after two hours of removing the old gasket which had sealant applied and held the ac unit to the roof top firmly i wondered if there was a step that dometic omitted. When a new unit has been installed it must be properly sealed to prevent leaks. Remove the mounting bolts as well as the screws and bolts that secure the air conditioning unit s cover.

Place the new gasket and reassemble the rooftop unit wiring and plastic housing. Contractor grade tapes seal out water to prevent damage to air conditioners and other hvac equipment mounted on roofs addison il august 24 2009 pres on the hvac industry s leader in adhesive gaskets and tapes has introduced a line of contractor grade curb tapes specifically designed to seal roof curbs to a c units preventing rain moisture and dust from damaging their increasingly sensitive electronics. I used a new roof seal epdm repair tape solvent and self leveling. The proper way to seal an rv air conditioner is to use a rubber compression gasket placed between the roof of the rv and the air conditioner.

Main unit and cover removed and down off the roof with the power off disconnect the wire harness. An air conditioner installed on an rv typically sits on top of the rv unit. Remove the air conditioning unit placing it on its side and take out the sponge rubber gasket.