Fitting a hatch in a cambered deck - SailNet Community

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  #1  
Old 08-27-2003
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Crip is on a distinguished road
Fitting a hatch in a cambered deck

Hi,
I have a 12" Lewmar hatch that I want to fit in the cabin roof. Trouble is there is a pronounced camber. You can see the area in question here:
<http://www.out-of-the-blue.info/ootb-albums-01/album01-11-1/Thumbs/1.jpg>

I obviously need to build up a flat surface for the hatch to sit on, but am wondering about how to go about this.

Any advise would be apreciated.

Thanks.
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Old 08-28-2003
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GordMay is on a distinguished road
Fitting a hatch in a cambered deck

You''re link to photo'' didn''t show up.
You can cast an epoxy levelling shim, upon which to install your hatch.
You''ll have to fashion a dam, which fits the deck camber (base) and has a flat & level top surface.
Mark out an area larger than the hatch frame, and prepare the deck surface for bonding.
Build a thin wood frame, the inside of which fits the outside of your required shim, and lay on deck . Do it again for the inside (shim) measurement.(They will sit on the crown, and above the valley)
In-fill the valley areas with a pliable putty, like "plumber''s wax".
Cast the epoxy shim, within the two frames.
Regards,
Gord

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