Is it the fridge vent?
I have a monaco dynasty 40'. On the roof there is a large covered what appears to be a vent. What is this large covered apparatus for? There is a crack in the sealant around the base of this vent. ...
Forum Discussion
Most screws on many motorhomes are square drive, #2 Robertson screws.
The fridge vent is typically a rectangular plastic contraption. Mine does have four screws inset in the top to remove the upper half of the assembly, and they were originally Robertson screws. (I've since replaced them with stainless screws that happen to be Phillips, as the originals were getting rusty. I've no idea why they didn't use stainless screws in a location that's guaranteed to collect water such as the inset screw holes.)
Typical procedure for this and other things that perforate the roof membrane is to thoroughly clean the old sealant and put a fresh, fairly thin layer on top. The standard product is "Dicor self-leveling lap sealant" for most roofs. (EPDM roofs IIRC use a different composition.) Some people prefer to use Eternabond tape, which is quite good provided it is applied properly according to the instructions.
The fridge vent is typically a rectangular plastic contraption. Mine does have four screws inset in the top to remove the upper half of the assembly, and they were originally Robertson screws. (I've since replaced them with stainless screws that happen to be Phillips, as the originals were getting rusty. I've no idea why they didn't use stainless screws in a location that's guaranteed to collect water such as the inset screw holes.)
Typical procedure for this and other things that perforate the roof membrane is to thoroughly clean the old sealant and put a fresh, fairly thin layer on top. The standard product is "Dicor self-leveling lap sealant" for most roofs. (EPDM roofs IIRC use a different composition.) Some people prefer to use Eternabond tape, which is quite good provided it is applied properly according to the instructions.
