inclusions

[David Humphries]

IIRC, there is an American site that has recorded failures (reported by arbs/forest services/etc) by species, which gives some indication of the relative frequency of the different types of failure. Unfortunately I don't have a link but I think David Humphries may have supplied it to me originally.

 

International Tree Failure Database

 

Administrated via University of California

 

Not 100 % sure it's live anymore.

 

http://ucanr.edu/sites/treefail/files/4358.pdf

 

 

 

.

[tree79]

What sort of cedar is it? I'm by no means an expert but I have worked on several cedrus atlantica which have had failed included unions and they seem to have a high failure rate.

In fact there's one with are cent wound near the entrance to the farm were working on at the moment.

Just my tuppence worth😃

 

 

Yes it is a cedrus atlantica, is approx 14m high.

Think may be it's more of a question of when not if it fails?

 

At the moment there's no obvious signs to indicate failure

[tree79]

My thoughts as I was reading too.

 

 

 

 

 

Thirty years ago we would have put a rod or two through that, without a second thought! I actually remember doing a maple which was starting to crack and fail, only to return a few weeks later after the Great Storm because the whole tree had uprooted.

 

IIRC, there is an American site that has recorded failures (reported by arbs/forest services/etc) by species, which gives some indication of the relative frequency of the different types of failure. Unfortunately I don't have a link but I think David Humphries may have supplied it to me originally.

 

 

Great I will have look,

Thank you

[Gary Prentice]

International Tree Failure Database

 

Administrated via University of California

 

Not 100 % sure it's live anymore.

 

http://ucanr.edu/sites/treefail/files/4358.pdf

 

 

 

.

 

Wondered if you were lurking:biggrin:

 

Thank you.

[daltontrees]

Yes it is a cedrus atlantica, is approx 14m high.

Think may be it's more of a question of when not if it fails?

 

At the moment there's no obvious signs to indicate failure

 

It looks pretty strong to me.

 

I suppose you have to weigh up what or who would be harmed if it failed and whetrher you are trying to cover your legal duty of care to others or whether you are looking for a higher or lower level of asssurance for yourself as occupier.

 

Live and dead loads can be reduced by pruning, and the probability of failure of a fork can in theory and in practice be reduced to negligible levels by pruning. There is a cost in monetary terms, in loss of amenity and in wounding the tre, but if the alternative is loss or gross disfigurement of the tree through a big CF failure, then it' worth considering.

[Betula]

 

Lightning damage to a Cedar!

[tree79]

It looks pretty strong to me.

 

I suppose you have to weigh up what or who would be harmed if it failed and whetrher you are trying to cover your legal duty of care to others or whether you are looking for a higher or lower level of asssurance for yourself as occupier.

 

Live and dead loads can be reduced by pruning, and the probability of failure of a fork can in theory and in practice be reduced to negligible levels by pruning. There is a cost in monetary terms, in loss of amenity and in wounding the tre, but if the alternative is loss or gross disfigurement of the tree through a big CF failure, then it' worth considering.

 

Thanks for all your help, its a great help

 

tree