Deaks

[alb40]

Hi to all

I have a Johnson and Jago boat that has teak strips laid onto a section of plywood. The plywood is rotten in some places so i plan to take up the lot and renew it. Lots of sealant is protecting it from further leaks but it still will need replacing.

I have never done any major woodwork like this before and basically i would appreciate some views as to how its likely to be constructed and replaced. How does the deck attach to the outside around the hull? It screws up into the sides of the roof on the inside.

I would appreciate the jury's views on undertaking this job,

Cheers

Alex

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[Freebee]

you may find this useful:

http://www.robbins.co.uk/Pdf Files/teak_decking_guide_epoxy.pdf



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[Peterduck]

The bad news is that there is no single method for this kind of construction. It soaunds as though you are going to have to commence by removing the cabin house and proceed from there. There may be a fair amount of gluing involved, which will mean the application of a lot of B.F. & I. [Brute force & ignorance] and a growing pile of wreckage beside the boat.
Peter.

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[tillergirl]

Need to ask some questions of you I suspect. Do we assume that the teak strips are glued to the plywood? If there are no signs of plugs then it can only be glued or secret nailed. I can't think of anyother way that it can be fixed - others may though.

If there are plugs in the teak then remove the plugs and you will find a screw underneath. Remove the screw and the teak will lift. I doubt that teak that has been screwed and plugged will also have been glued. The plywood underneath may be pinned or screwed to the deck beams and half beams.

If there are no signs of plugs, (and the teak strips are thin) then it is probably glued although it could be secret nailed (ie diagonally through the edge of the teak into the plywood) Personally I have never seen such a method of fastening on a boat and therefore I would tend to suspect gluing. Either way Peter Duck is right and you will have to wreck the teak to lift it. I doubt if glued that this is an original deck.

Even if screwed and plugged, you may find unfastening very difficult and time consuming. When I replaced the deck on TG (one inch teak on quarter inch ply, screwed and plugged) some sampling showed it would take about two hours to remove one screw if the teak was to be saved. When I reckoned up the time to do this to the whole deck, it totalled half of the rest of eternity and I had to cut my losses and use a hole cutter to cut out every screw leaving me with lots of teak with holes (subsequently reused on all sorts of odds and ends).

As to how the deck attaches to the outside of the hull can you give more information. Do you have a raised gunwale (ie the top plank of the hull extends upwards beyond the level of the deck), does the deck butt up to the inside of the top plank or does the deck extend over the top of the edge of the top plank to the outside edge of hull? Do you have a toe rail?

A raised gunwale may be screwed into the edge of the deck or the outside edge of the ply may just be screwed downwards into the beam shelf (the timber that goes from stem to stern just inside the top plank of the hull) The other two options may have similar choices.

Are you replacing the whole of the deck? Have you decided what to replace the deck with?

On a positive note, it's a very satisfying job but the early stages of destruction may require a stout and positive frame of mind.

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