[Public-list] Deck Cracks

Thu Sep 21 08:23:23 PDT 2006

Don,

Understanding the tendency for "the page" to wander from time to time, it is 
good to know the deck composition of #528 which, I assume, since the numbers 
are close, is similar to good old #148.  Do you happen to know the 
composition of the other two you mentioned and if there is any way we can 
tell which way our boats were constructed.

More to the point, it appears Mr. Marmei was, in fact, referring to an area 
of the deck that you confirmed is pretty thick, that being where the deck 
meets the hull in the "doghouse" (boy, sounds like those dogs have it made; 
I wonder what accommodations they have on land).  Anyway, the overall point 
seems to be, even if the entire deck isn't really, really thick, filling 
hairline cracks with wax might be a good way to keep water out of the core. 
Does that sound reasonable to you or do you think George's more drastic 
churchkey technique is necessary?

All the best,

Roger

Roger Kingsland
Managing Partner
KSBA Architects
3441 Butler Street
Pittsburgh, PA 15201
N40°- 27.83'  W79°- 57.99'

(412) 252-1500 x101 office
(412) 779-5101 cell
(412) 252-1510 fax
www.ksba.com
----- Original Message ----- 
From: "Don Campbell" <dk.campbell at sympatico.ca>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Thursday, September 21, 2006 10:27 AM
Subject: Re: [Public-list] A few rookie questions

> Villo;
>    There were three deck configurations on Alberg 30s and they are all 
> different.
>
>    I have taken the deck on #528 completely off and so know it like the 
> back of
> my hand. There was nothing in that deck that even faintly resembles what 
> you have
> described. First: there was no core on the edges of the deck and there 
> were voids
> where core was close to the edges. Second, none of the bolts through the 
> deck or
> screws into the deck were coated or sealed, nor were the open edges where 
> the cowl
> vents gwent through the deck.  Third, the bolts were through balsa rather 
> than
> through a reinforced plug of resin. Fourth the deck is a web of 
> approximately 1/8"
> outside layers on both top and bottom with 1/4" balso as the web core and 
> there is
> very little of the deck that is 1/4 - 1/2inch thick. The only areas like 
> that are
> in the areas of the winch bases and on the aft deck, but I presume the 
> earlier
> models with built on winch bases were much different again. Fifth, even 
> the chain
> plates are not through solid resin.
>    Perhaps you should take a stantion base off or look under the cowl vent 
> base
> ring on the foredeck  to see what you have on your boat before you define
> something that does not exist.
> Don #528
>
> Villo Marmei wrote:
>
>> Come on now you fellows....
>> Cracks on the deck are small stress Gellcoat cracks .010 to .020 deep...
>> nothing to worry about.
>>
>> Underneath you have solid fiberglass 1/4-3/8 to 1/2 inch thick.
>>
>> I usually do not wax my boat deck because it becomes slippery.....but I
>> fill with wax all the small cracks in the cockpit corners and other areas
>> on deck only because I do not want any small water to penetrate theses
>> cracks and stay under the gellcoat.
>> Water gets into the boat deck core by way of screw and bolt holes that 
>> have
>> not been properly sealed with caulking...that is bad and dangerous when
>> water freezes in winter and rots the deck core during summer
>> Villo on AHTI-KC
>>
>> At 08:01 PM 9/20/2006, you wrote:
>> >cathie & john coultis wrote:
>> > > Don I
>> > > now recall seeing cracks along the deck.  Hopefully, it will just be 
>> > > a
>> > > matter of re-bedding/sealing the ports/genny tracks and toe rails
>> > > (chainplates are another issue).  However, what is your suggestion 
>> > > for
>> > > repairing the cracks in the deck and around the area where the 
>> > > forward
>> > cabin
>> > > (the "doghouse"- where our 2 golden retrievers have the entire 
>> > > forepeak to
>> > > call their home) meets the deck?
>> >
>> >Cracks around the cabin top are probably just leaking into the deck
>> >core, rather than into the boat, itself.  They still need to be fixed,
>> >of course.  A simple way is to scrape them with a sharp "church key"
>> >(used to open beercans before pop-tops, see
>> >http://www.acemart.com/graphics/00000001/products/aaatap1.jpg) to form a
>> >V-shaped groove.  Then fill them with thickened epoxy resin.
>> >
>> >
>> >--
>> 
>> >   ----------------------------------------------------------------------
>> >    When I remember bygone days                         George Dinwiddie
>> >    I think how evening follows morn;            gdinwiddie at alberg30.org
>> >    So many I loved were not yet dead,           http://www.Alberg30.org
>> >    So many I love were not yet born.
>> >                 'The Middle' by Ogden Nash
>> 
>> >   ----------------------------------------------------------------------
>> >
>> >
>> >
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