Ours didn’t leak, but corrosion had finally taken out the wiring topside and inside the antenna itself. So while in Bend for new TVs and cabinet modifications a few years back, I spent a weekend up there replacing the batwing with a different style
https://www.google.com/shopping/product/3180505714157035536?q=winegard+rayzar+rv+antenna&client=safari&sa=X&hl=en-us&biw=1112&bih=732&tbs=cat:1718,pdtr0:726863|1656610,vw:l,init_ar:SgVKAwi2DUoKUggIz64sIKKOZUoHsgQECNqnIA%3D%3D,ss:44&prds=epd:17715418501173485323,paur:ClkAsKraX3DsgMxAiVjRUC6s8ZkdIbmILq1YFniDTmy1VdgXPpL0J_bYhN4D6zF0VNVzO5Jc0W_WbgNn6ktvAR79xW1WUVCDfd3MB4tE-mHatiomoKufmONBGxIZAFPVH70kaL6TllwXLgDwFMiQzm8iil_8JA,cdl:1,prmr:1,cs:1&ved=0ahUKEwi9msfKwazeAhVPOKw
One type of antenna I was cautioned against by the experienced TV installer was jack style. He’d replaced all too many, and online reviews backed that up.
https://www.google.com/shopping/product/8757013009819441879?q=winegard+rayzar+rv+antenna&client=safari&sa=X&hl=en-us&biw=1112&bih=732&output=search&prds=ds:1,num:4,cs:1&tbs=cat:1718,pdtr0:726863&ved=0ahUKEwiQjar2zKzeAhX0wMQHHQtsD1MQiHAIPwIt required some modifications of the tubing arms, but was otherwise not hard, and the reception is just as good as it was before the wiring rusted out. It also receives equally on either flat side, so one doesn’t need to ever rotate it more than 180 degrees.
Most of my time was spent aligning wires and forming loops that were water and tangle-proof. I wrapped susceptible wire splice and connection areas with 3M waterproof tape and as I recall some that shrinks tight. Probably overkill but after a horrendous flood not long before from a tiny breach at our solar panel wire roof entry, I was determined to stop water.
Dicor self-leveling sealant is best as a basic roof device seal as it can flow into low or hidden spots, but I back many suspicious spots up with clear Lexel. It’s available in squeeze tubes and caulking tubes at Ace and some other retailers. It’s critical to adhesion that all surfaces be clean.
You may need to at least remove the base plate (whether you keep an antenna up there or not) and scrape all the old sealant off the roof, and start over with fresh Dicor. The solar wire leak I dealt with was virtually invisible underneath a folded-over loom of wires. The pressure of the wires atop it should’ve helped the seal, but instead several gallons of water came in there during a gully washer while we were gone, pouring in from ceiling light fixtures and AC vents... all via a hidden split in the sealant. When examining things up there, you must lift wires and check very carefully even the slightest potential culprit. Your leak may also be running to the antenna fixture inside from a nearby other roof fitting, and not where you think.
Joel
