Lazzertte hatch seal

[GrandWood]

What have you found to seal the lazzerette hatches, thanks
Joe

 

[Comodave]

What are the hatches made of? How about some photos?

 

[READY]

Perhaps something like this?Amazon.com

 

[GrandWood]

What are the hatches made of? How about some photos?

There wood, I removed a black rubbery type material and put some door/ window weather stripping stuff and it doesn’t cut it. The rim to stick to is metal.

 

[Frosty]

I can't tell exactly what the sealing surface on the boat is (I can see the hatch is just flat bronze bar stock basically).

Presuming there is no special groove or what have you on the boat side, I think I would look for something from McMaster Carr.

But.... is there anything besides gravity that compresses the seal piece? A compression latch on one side and hinges on the other? Or something?

I guess before I link to what I might try, I'd like to know if these just sit there via gravity or if the seal has a compression force from some hardware or some other method.

 

[GrandWood]

Just gravity and sitting on the teak decking

 

[JackConnick]

Looks like the water is going right through the wood to me. Amazon has a bunch of sealant tapes.

 

[Frosty]

Just gravity and sitting on the teak decking

Seems like that would be tough to seal. Nothing to compress the seal, plus sitting on a semi-irregular surface (teak deck).

I'm no expert, but thinking something fairly soft (durometer-wise) so the weight of the hatches compresses it decently vs. "sitting up high" like something stiffer would do? Maybe more of a rectangular closed-cell foam profile than a D-profile? for more flat surface area? I still would expect them to leak (but leaking less is better than leaking more). I wonder what other woodie GB's have used?

I find stuff like this at McMaster-Carr (online). They have a lot of materials and always give accurate specs for measurements, durometer, etc. so you know what you are getting. If you haven't used them before, a tip is that if you click on a part number, and then click on "product detail," one of the images will be an accurate sketch of dimensions. Really handy.

 

[Xlantic]

I am surprised there is not a gutter inside the lazarette to catch the water that inevitably comes in.

I had a 1979 GB CL that had them in the lazarette. Granted, it was a fibreglass boat. But even my current wooden GB has gutters in the bow storage boxes.

They could be added and I would think that is the only definitive solution to keep the lazarette dry.

 

[GrandWood]

I am surprised there is not a gutter inside the lazarette to catch the water that inevitably comes in.

I had a 1979 GB CL that had them in the lazarette. Granted, it was a fibreglass boat. But even my current wooden GB has gutters in the bow storage boxes.

They could be added and I would think that is the only definitive solution to keep the lazarette dry.

Yes there are channels around the inside, but does not catch water from the center hatch part

 

[lwarden]

I think you will want a fairly soft "D" shape bulb seal. Get the good stuff from McMaster or other quality distributor with genuine 3M adhesive. The stuff off Amazon has poor quality adhesive.

 

[Frosty]

I, too, am surprised there is nothing on the deck side to "receive" a gasket. I guess the laz was just considered to be wet space (?)

I think you will want a fairly soft "D" shape bulb seal. Get the good stuff from McMaster or other quality distributor with genuine 3M adhesive. The stuff off Amazon has poor quality adhesive.

I was thinking a rectangular "flat" shape just so it could interface with more of the flattish-but-not-flat deck side? Maybe one of the ones that looks like a toothed grout spreader would work?

I have the latter between a flat floorboard and the deck. This isn't at all meant to keep out water, but... surprisingly it sort of does. Meaning I get wet leaves and grunge soup that doesn't pass under the gasket.

These are what I ordered for that purpose. Maybe would be a good choice here? (Adjusted for your specific size.) It's water and weather resistant and the adhesive is 3M acrylic.

Link below leads to the exact product even though you can't tell by looking at it:

McMaster-Carr

McMaster-Carr is the complete source for your plant with over 595,000 products. 98% of products ordered ship from stock and deliver same or next day.

www.mcmaster.com

 

[GrandWood]

I am surprised there is not a gutter inside the lazarette to catch the water that inevitably comes in.

I had a 1979 GB CL that had them in the lazarette. Granted, it was a fibreglass boat. But even my current wooden GB has gutters in the bow storage boxes.

They could be added and I would think that is the only definitive solution to keep the lazarette dry.

Yes there are channels around the inside, but does not catch water from the center hatch part

 

[GrandWood]

Thanks guys, much appreciated.

 

[Xlantic]

If there is a gutter around the perimeter of the three hatches you could tie them together so they don’t leak in the current gaps between them.

It will be heavier to lift but it would fix the problem.

Just a wild idea …

 

[Brent S]

What have you found to seal the lazzerette hatches, thanks
Joe

After many years of leaking on my 1969 GB36, because the central hatch has no rain gutter, I decided to make a canvas cover that snaps down onto the deck. This solution helped but ultimately didn't fix all the leaking. I then decided that the best way to finally fix the problem once and for all was to build a single opening hatch. As I was replacing the leaking teak decks the hatch solution was not that difficult.

 

[GrandWood]

After many years of leaking on my 1969 GB36, because the central hatch has no rain gutter, I decided to make a canvas cover that snaps down onto the deck. This solution helped but ultimately didn't fix all the leaking. I then decided that the best way to finally fix the problem once and for all was to build a single opening hatch. As I was replacing the leaking teak decks the hatch solution was not that difficult.

That is freakin sweet, very nice, I’ll have to start ciphering on that for sure

 

[Xlantic]

My fibreglass GB42 had the gutter around the hatch opening but it also had a gutter built-in to one of the two hatches. This gutter would catch the water coming in between the two hatches and channel it to the perimetral gutter.

If you have enough vertical clearance you may be able to add two removable channels that do the same: catch the drips between the hatches and channel them to the existing gutter.

 

[Mark Laurnen]

An inexpensive, but probably not final, fix might be the self adhesive gasket tape intended for use between a pickup bed and topper. Easily available at any Home Depot, it comes in different widths and thickness’s. The ultimate solution would be gutters and a new hatch, but $20 might hold you until then. It’s always something on a boat!

 

[PNWPederson]

After many years of leaking on my 1969 GB36, because the central hatch has no rain gutter, I decided to make a canvas cover that snaps down onto the deck. This solution helped but ultimately didn't fix all the leaking. I then decided that the best way to finally fix the problem once and for all was to build a single opening hatch. As I was replacing the leaking teak decks the hatch solution was not that difficult.

Hijacking this for another question. Does anyone know how heavy the lazarette hatch is on a 1970 GB32? I like the idea of installing gas struts to help hold the hatch up when it's open and to help open it in the first place.

 

[Mainecoast]

I have a piece of commercial grade, rubber backed carpet that I put over the lazarette hatches. I have gutters and drains under the hatches, so anything that goes under the carpet goes into the gutters and out the drains. Water does not go through the fore and aft seam between the hatch covers. Nice and dry down there....

 

[Comodave]

Hijacking this for another question. Does anyone know how heavy the lazarette hatch is on a 1970 GB32? I like the idea of installing gas struts to help hold the hatch up when it's open and to help open it in the first place.

Probably best to start a new thread.