Galley Seal "Hiccup"

[Moho]

I wanted to get everyones thought's on this construction method for sealing the galley hatch on my build. I "overlooked" how I would seal the galley hatch and this is the solution I came up with, based on where I stand now in construction.

I'm thinking it shouldn't have any problems, however I just wanted to get your thoughts before I commit to more of my framing and such. Keep in mind this is a woody and the trim is 1/2" thick (actual thickness).

One thought I had was to eliminate the 2 seals and go to just one by lowering the side trim and moving the 1/4" seal to the outside edge.

I also considered moving the top trim over to create a "drip edge" of sorts.

Thoughts?

Below is a cross section of the hatch.

[Miriam C.]

Yep, you have over-built it! Looks good to me really!

[madjack]

...looks pretty good to me...keep in mind, you want about a 50% compression on your seals for best results...I would also consider placing a seal between the top trim on the hatch and the body...in other words, don't give water any place to pool up or try to enter.........
madjack

[Moho]

Yeah it's there, just hard to see in the diagram. Labeled 1/16" seal. My biggest concern was honestly the amount of stress on the top trim piece over time. Shouldn't be alot of pressure, but there will be some.

[48Rob]

My biggest concern was honestly the amount of stress on the top trim piece over time. Shouldn't be alot of pressure, but there will be some.

You could solve that issue/concern with a small stop on each side on the interior wall, placed to allow, as Jack said, 50% compression.
It would contact the hatch framing, allowing only a set amount of stress/contact on the hatch trim.

Rob

[bobhenry]

[quote="Moho"]I also considered moving the top trim over to create a "drip edge" of sorts.

Thoughts?

It looks kinda tight. You might want to think about swelling of the wood during high moisture situations.

It is a great design feature though, and darn sure won't leak unless you are UNDERwater!

[Moho]

You could solve that issue/concern with a small stop on each side on the interior wall, placed to allow, as Jack said, 50% compression.
It would contact the hatch framing, allowing only a set amount of stress/contact on the hatch trim.

Thats a great idea, especially to help with any swellling or slight warping of surfaces. I will add that to the design.

It looks kinda tight. You might want to think about swelling of the wood during high moisture situations.

That brings up a good point. My woodworking experience is limited to guitars, where tolerances are hundredths or thousandths of an inch. To me a 1/16 of an inch is huge (still trying to convince the wife that it is too)

What size of gaps have you all found works best on galley hatches and doors to allow for swelling?

[bobhenry]

I'll stick my neck out......

You have 2 surfaces moving towards each other so I would allow an 1/8 as a minimum on either side of the wall.

[planovet]

I'll stick my neck out......

You have 2 surfaces moving towards each other so I would allow an 1/8 as a minimum on either side of the wall.

I would agree with this if the trim is one piece. You will need a little wiggle room due to things swelling and warping when you don't want it to.

But, I have the feeling the trim is in two pieces due to the 1/16" seal he has between the two pieces.

IF it was me, I'd do the trim in one piece, get rid of the 1/16" seal between the pieces and add the gap.

[Moho]

IF it was me, I'd do the trim in one piece, get rid of the 1/16" seal between the pieces and add the gap.

Good point, that solves it. Just like the edited photo shows, creates a drip edge, seals the hatch. Completely didn't consider that. Back to the build!! Thanks

Corrected Profile Below for future builders with same technique

[madjack]

...although I used an AL RV insert trim, that is very similar to what I did on mine...I do have a question as to how the hatch<>hinge<>body interfaces/meets up.........
madjack

[Moho]

Doing it as below, the trim and brace will be mirrored on the galley side.

[planovet]

I would recommend that you go ahead and fill the entire gap with the seal (filled in red). Maybe you were anyway but the picture showed gaps.



My setup is somewhat similar and I used a "D" seal for the gap. I think it compresses better than a flat seal and seals better. I have never had a leak with mine.



Here is a picture of mine. It's difficult to see it but it's a 3/4" gap with a 3/4" D seal in it.

[Moho]

Good point on the side gaps. I had planned to use a D seal Thanks for the pics as well