Domain: tiger-web1.srvr.media3.us Need some help keeping water off my boat | Outdoor Board
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Need some help keeping water off my boat

Posted on 7/9/18 at 10:21 am
Posted by Sofa King Crimson
3rd Ward
Member since Nov 2008
4135 posts
Posted on 7/9/18 at 10:21 am
I have a boat lift with a deck above it. So the boat is covered but the deck has the typical quarter to half inch spaces in between each board, so water drips into the boat. I imagine this is a somewhat common issue. I don't want to put a cover on the boat each time I lift it up.

Was thinking about installing some sort of tin roofing to the bottom of the deck at an angle so the water flows off and away from the boat. Anyone ever done something like this?
Posted by cajuncarguy
On the road...Again!
Member since Jun 2013
3135 posts
Posted on 7/9/18 at 10:23 am to
If the wood of the deck doesn't get enough air circulation it could rot. Could you seal the gaps in the board with an expandable material?
Posted by NYCAuburn
TD Platinum Membership/SECr Sheriff
Member since Feb 2011
57012 posts
Posted on 7/9/18 at 10:27 am to
LINK



Polycarbonate Roof Panel
Posted by Sofa King Crimson
3rd Ward
Member since Nov 2008
4135 posts
Posted on 7/9/18 at 10:28 am to
well there are 2x8 joists that I would actually be attaching the tin to, so it wouldn't be flush. Still possibly an issue with circulation?
Posted by Wtodd
Tampa, FL
Member since Oct 2013
68486 posts
Posted on 7/9/18 at 10:39 am to
quote:

I don't want to put a cover on the boat each time I lift it up

You can get a blue tarp for about $10; bungee it down....problem solved
Posted by NYCAuburn
TD Platinum Membership/SECr Sheriff
Member since Feb 2011
57012 posts
Posted on 7/9/18 at 10:40 am to
quote:

You can get a blue tarp for about $10; bungee it down....problem solved


If I have a boat at a dock, the only cover I am putting on is if the boat plans to sit for extended periods.
Posted by Sofa King Crimson
3rd Ward
Member since Nov 2008
4135 posts
Posted on 7/9/18 at 10:53 am to
I'll take a look at that stuff. Thanks, NYCAuburn.
Posted by Tigerhead
Member since Aug 2004
1176 posts
Posted on 7/9/18 at 11:32 am to
Haven't tried it but here's a few thoughts.

Anything you attach directly to the bottom of the joist is going to hold water against the wood.

Can you make it big enough so the wind doesn't blow water in ?

Could you build a rigid roof/cover with it's own sub-frame and suspend it from the joists with eyebolts or metal straps or something? That way you wouldn't hold water against the wood and you could use longer hangers on one end of the roof to create a slope.

I would put as much slope in it as you can stand so the water drains off quickly and you don't get leaks from capillary action between your roofing sheets. I had that problem using the polycarbonate roofing on a patio cover.

I don't know what your budget looks like, but an aluminum sub-frame with the polycarbonate roofing panels would be light and the most corrosion resistant. Make the sub-fame in sections that could be lifted into place and bolted together for easier installation.
Posted by go_tigres
Member since Sep 2013
5450 posts
Posted on 7/9/18 at 2:07 pm to
We just did this. Had a guy install metal siding, we call it c panels(like on a metal building) to the underneath side. He angled it and finished the out side with gutters. Works great. Kind of expensive, but worth.
Posted by celltech1981
Member since Jul 2014
8139 posts
Posted on 7/9/18 at 2:14 pm to
i would think there would be plenty enough circulation under the deck with the tin under the 2x8s
Posted by meanbean
Brevard, NC
Member since Aug 2012
196 posts
Posted on 7/9/18 at 2:25 pm to
LINK



We've used them on higher end housing that the owners wanted a dry space below an exposed deck. I believe you can buy the stuff at Homedepot. Not hard at all to install.
Posted by Chris4x4gill2
North Alabama
Member since Nov 2008
3116 posts
Posted on 7/9/18 at 3:55 pm to
Our old dock had a metal roof and the wood upper deck built over it. Probably 4 inch spacing between the two. Our current dock uses the aluminum flooring that is water tight.
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