oak frame rot

[pugsleyaddams]

hi gang, newbie here looking for some advice,
having recently purchased a teak on oak framed ex-survey launch we were dismayed to find several cases of wood rot in some of the oak frames, having dealt with the rot i'm wondering if the rot would have gained ingress to the teak planking underneath.
any experience of similar problem and solution would be greatly appreciated... /forums/images/graemlins/smirk.gif

 

[tillergirl]

I've been trying to find a way to say this without sounding trite but what did the teak look like once you removed the oak? Any sign of damage? You don't mention whether wet or dry rot? I think if I was satisfied that there was no obvious damage and it remained hard, I would have doused the area in cuprinol rot killer. Probably several times.

 

[MasterofHera]

Tillergirl is right is it (or was it ) wet or dry. Dry can be sometimes sorted by modern technics but wet needs cutting out.

 

[pyrojames]

I cut out some rotten frame ends and pieces of stem in CdG, but the teak underneath appeared sound and hard. We doused it all with cuprinol before putting in new oak.

 

[Seanick]

If its dry rot its time for a box of matches. Seriously!

 

[pugsleyaddams]

[ QUOTE ]
If its dry rot its time for a box of matches. Seriously!

[/ QUOTE ]
hope not pal, gulp /forums/images/graemlins/laugh.gif

 

[pugsleyaddams]

thanks everyone, we didnt get all the oak frame out we just dug out the loose, thread like rotten bits around 3/4 of the frame and treated it with cuprinol treatment which has hardened the oak left in situ, but i needed to know if there's any chance the rot can or has attacked the teak behind the frame ??

 

[tillergirl]

There's a difference twix dry and wet rot. Inherently wet rot thrives on excessively moisture in the wood. So cut that out, remove source of dampness and you are in with a chance. Cuprinol kills off the spores.

Dry rot is much nastier and is generally considered only eradicated through burning. However, the spores are spread easily. It does not need excessive moisture in the wood; dampness can be sufficient. Whereas wet rot will stop groiwn gonce them,oisture content is reduced, dry rot grows a root like network which can extract the necessary moisture from dry (ish ) wood to continue its rampages.

So if you had dry rot all traces of affected timber should have been removed and you should watch the surrounding area like a hawk.

Sounds like you had wet rot since dry rot has a corrugated look rather than thread like damage. But teak is one of the most resistant timbers to both wet and dry rot. But it does sound to me like you have a seriously weakened frame that ought to be replaced.

 

[pugsleyaddams]

thank you tillergirl,
luckily the boat has both sawn and steamed frames at 24 inch intervals so there is a frame every 12 inches so i'm not too worried about the frames it was just the rot but i think the wise thing to do will be to totally remove the affected timber and treat the surrounding area's with a good preventative measure.
Any suggestions ????

 

[tillergirl]

Sorry - been away. I have used Cuprinol - they have a rot killer. I used that first and then put on some standard Cuprinol stuff.

 

[pugsleyaddams]

thanks again tillergirl,
when the weather improves i'll give the rot a good sort out i'll give the cuprinol a go and keep my eye on it and if it shows signs of not curing it, i can always lift out the boat and totally remove the bad sections....thanks again.