Snow and rain cause the majority of mobile home roof leaks.
How to seal siding on a mobile home leaking problems.
While flat roofs aren t completely flat they don t have much of a pitch and that allows the snow to just sit on the roof and melt slowly.
Vinyl siding institute cited below.
Any attempt to caulk or seal this area using another method is not likely to have a long term result.
I would recommend removing the siding around the window and replacing the j channel.
Drive a 2 inch nail into the nozzle.
If you still have a half full cartridge or you just need to take a break between stages of caulking then there are two ways you can keep your sealant soft and ready for the next use.
Wrap the nail and entire nozzle with aluminum foil or plastic wrap.
Also see peel stick flashing membranes.
The rigid head flashing must be sealed to the exterior sheathing and to the top of the exterior casing fig.
The broken j channel is clearly the most likely source of a leak in vinyl siding.
Cut a notch on the ends of the rigid head flashing and bend them down over the sides of the exterior casing.
As we outlined in the second article of this series ceiling water stains and ceiling leaks are the best evidence of an active and or previous roof leak.