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over T Top vs. under T Top Cover?

Old 08-22-2018, 08:17 AM
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Default over T Top vs. under T Top Cover?

I had a Carver over the T-Top boat cover for my Key West 219 FS. I found it to be a bear to put on by myself. I need to replace it. I am looking at an under the T Top instead of over the T-Top. It is a hardtop with VHF antenna and light mounted on top.

Please provide your pros and cons, as well as brand recommendation.
Old 08-22-2018, 08:21 AM
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I have a custom one previous owner put in. Under t-top, takes about 10 mins if I'm alone. Worth it imo. 27ft boat it was $1600.
Old 08-22-2018, 08:37 AM
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I have a TaylorMade under-style cover. It has vertical zippers on each side amidships that help with the setup and takedown. Fits exceptionally well for a non-custom.
Old 08-22-2018, 09:44 AM
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I have a Carver over the top cover that I can slap on in about 20 minutes now (Sea Pro 228). My secret (okay, not really a secret) is to roll the cover up from the front as tight as possible when I take it off. I leave all of the straps attached to their attach points when removing. When I get ready to install, I toss it on top of the T top (it's fiberglass, not sure if that matters), and slowly unroll while pulling the back half down over the outboard. Then I roll the front over the front of the top, and toss it over the sides.

I know this wasn't your question, but thought I'd offer up some advice hoping to help.

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Old 08-24-2018, 06:20 PM
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WHERE AM I GOING WRONG WITH MY LOGIC?
I"m buying my first t-top boat and do not understand why I would have an UNDER T-TOP cover vs OVER the T-Top ? I keep my boat on a lift. I would think throwing it up over the top and then using a bungee to secure it to my boat lift on one side and dock on the other seems to make sense. It may not look as good, but it would cover everything, be easier to put on and off, and the generic big boat cover would be far less expensive than an under t-top custom cover. MAKE SENSE?
Old 08-24-2018, 07:04 PM
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Originally Posted by Joey Boat View Post
WHERE AM I GOING WRONG WITH MY LOGIC?
I"m buying my first t-top boat and do not understand why I would have an UNDER T-TOP cover vs OVER the T-Top ? I keep my boat on a lift. I would think throwing it up over the top and then using a bungee to secure it to my boat lift on one side and dock on the other seems to make sense. It may not look as good, but it would cover everything, be easier to put on and off, and the generic big boat cover would be far less expensive than an under t-top custom cover. MAKE SENSE?
That's okay if you don't have lights, outrigger mounts, GPS and radio antennas or a radome up there.

OP: I recently purchased a cover from Ttopcovers and I'm pleased with it.
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Old 08-24-2018, 07:55 PM
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Under TTop cover is very easy to put on, 1 person can do in 10 minutes or less. I had one on my Sea Hunt (made by TTop Covers) and it was excellent quality. I highly recommend it.

Last edited by CLVL; 08-24-2018 at 08:06 PM.
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Old 08-24-2018, 08:05 PM
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I currently have an over the t top cover on my 24'. It's a PITA to put on since I do it myself and have two 8' VHF antennas. I plan to pit a radar up there next year so I'm going to have a canvas shop modify it to make it fit under the top. I also need to keep a fan circulating air in it since it can get humid where I live. Once I start mounting it under the top, it'll eliminate most of my issues.
Old 08-26-2018, 07:12 AM
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Originally Posted by CLVL View Post
Under TTop cover is very easy to put on, 1 person can do in 10 minutes or less. I had one on my Sea Hunt (made by TTop Covers) and it was excellent quality. I highly recommend it.
I agree that the ttop covers are great quality as an added benefit they have excellent customer service if there is any problems
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Old 08-26-2018, 07:50 AM
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I've had both, with the over t-top I got a lot more mold quicker. With the under t-top it had better air circulation and much easier to install. One thing I would recommend, if you have a colored hull, make sure the sides are completely covered.
Old 08-26-2018, 08:22 AM
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Over the top only for me. Takes a bit of strength and agility. Bungy to the trailer. 15 min and some sweat and curse words. Protects top, keeps most unwanted living things out. Why partially cover your boat? I use damp rid tubs in the boat and inside the console. Keeps moisture down. No molding as of yet.
Old 08-26-2018, 01:52 PM
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It depends on what you've got atop the T-top. With outriggers, antennas, radar, GPS, and lighting, I have no choice but to go under the top. I find that it also breathes well as its vented through the top while being protected from weather so mildew is kept to a minimum. Mine is a TTop Covers . com brand and I love it:
Old 08-26-2018, 05:40 PM
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No affiliation - here's a under Ttop cover for a 22' boat on Houston Craigslist for 22' boat. Price is $150 which I think is a steal.

https://houston.craigslist.org/bpo/d...659668834.html
Old 08-26-2018, 05:58 PM
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Been using a big ass harbor freight grey tarp over the top and last season the snow load broke my friggen antenna. Fall is coming which means leavea. I odered a StormPro under T top cover from Amazon and they just delivered it today...wrong one. Ugh...just my luck.

Last edited by SquidsDusky; 08-27-2018 at 04:32 AM.
Old 08-26-2018, 06:58 PM
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get one cover for the boat (under the top) and another for the top itself
Old 08-26-2018, 07:25 PM
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Under the top. On my 3rd Ttop Boat Covers Company cover, for 3 separate boats I have owned. Easier to install and take down, just attach straps to posts of Ttop. Advantages are you get more airflow with a chimney effect from the solar heating, less weight, no problems with antennas or other pieces, breathable waterproof fabric. I would highly recommend the gray color for ANY cover though, blue or black is a freaking convection oven during the day.
Old 08-27-2018, 06:41 AM
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I've had both. Carver Over the top was a pain to install(relatively) and a much lesser quality than Ttop Covers. As long as Ttop covers has the pattern, I will use them.
Old 08-28-2018, 06:26 PM
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I wet slip my boat in CT I called TTop Covers they only make them for trailers and they go down around the waterline. They would not do a shorter cover for me. Every canvas guy around me is incompetent so I got a Taylor Made one from EBay I plan to use suction cups to hold it down. I dry fitted it Saturday and my Stepmother reinforced the bow cleat holes that I traced and cut out.

I ran out of time and suction cups today but I hope to have it all set this weekend for under $400 I think it’s pretty good.
Old 08-29-2018, 05:36 AM
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I would think ease of operation and air circulation would be the biggest advantages of an under the top cover. The only advantage of a full cover would be that the top is covered as well. I have a hard top so I don't worry about it is much as if it were a canvas top. Just have to keep a coat of wax on it. Air circulation seems like it would be a bigger deal. Even with an under mount I have to keep hatches and doors open or it gets really damp. I'm in south Florida so we get pretty humid.
Old 08-29-2018, 05:43 AM
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Under ttop. I have never had any mold issues compared to the over top one. Also much easier to put on imho, but I went custom route.

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