Thursday, August 12, 2010

Cross section

Cross sectionThis cross sectional picture gives you a good idea of how things were done, and what lies below.

The cut piece you can see is from the aft piece of deck, behind the galley door.

The wood here was in relatively good condition, as it was always a little sheltered here.

You can just see there is a line of studs on the other side of where I'd cut with the chainsaw. All this stuff still has to come out.

The routine we fell into was to cut the wood down as close to the steel as possible, in sections, then break and prise the wood away piece by piece.

Often, the underlying studs would just pop off at deck level as they were so rusted. Occasionally, like this section, where the studs were in better condition, we just broke the wood away from around the studs with a crowbar and big lump hammer.

Needless to say, none of the wood is re-usable. Even if it was not all hacked and broken by us, much of it was rotten through and badly stained by the rusting steel from below. Sadly, it's not even in a fit condition for me to use in our woodburning stove at home.

The biggest surprise was the steel beneath, in that there is absolutely no evidence anywhere of any kind of protective treatment for the bare steel. Presumably the people who laid the deck were that confident of the watertight seal they would make, they did not feel it was necessary.

The state of the rusty steel you see in the foreground of the picture is representative of most of the rest of the deck. Save for one or two places where there is evidence of much more severe corrosion.

The exception to that is the section of deck which had a gap in the planking open up some years ago. I poured quite a bit of bitumen into the hole, until eventually it made a seal there. This section of deck seems in better shape than elsewhere, though it is coated with bitumen which is going to be 'interesting' to get rid of now!

I'll only know the true state of the steel once it's all been rust busted.

Oh - one last thing - I, as yet, have no idea what to do for the re-laying of the new timber deck. There is plenty else to get done on this project before than, so I have time enough for proper research and a solid plan.

6 comments:

  1. Anonymous6:23 PM

    I would not consider burning that wood. It was likely treated with creosote -- or worse -- when new. It will have to just go in the tip.

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  2. Hi Anonymous

    Yup - the tip people are likely to kick up when I appear with all that lot :)

    Cheers

    Tim

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  3. Anonymous3:58 PM

    What about the concrete footings and whatnot? There are some, like the ones for the original fishing equipment, that could be drilled out and removed. Do you have a list of these things to tackle?

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  4. Hey Tim,

    have you thought about using a plastic / wood composite for the decking?

    http://www.toolbase.org/Technology-Inventory/Decks-Patios-Fences/recycled-composite-lumber

    little bit more upfront cost compared to cheap woods but you don't have to seal it or refinish it every few years and it should last a lot longer.

    Vazz

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  5. Hi Anonymous

    As much as I can take off, so as to have a really good looking expanse of deck, I'll get off.

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  6. Hi Vazzini

    Good idea. I'm considering all options.

    What really counts is being able to effectively seal the underlying steel, so I know I don't have to worry about it rusting ever again.

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