UKTC Archive

Re: Tree hazard potential assessment study Tree cavity work?

Subject: Re: Tree hazard potential assessment study Tree cavity work?
From: Bill Anderson
Date: Nov 27 2019 13:23:27
That photo's a bit blurry Simon; were you running away backwards when you
took it? (I would've been....)

On Wed, 27 Nov 2019 at 10:51, Jerry Ross <trees@xxxxxxxxxx.co.uk> wrote:

As you say, it's very long and I've not listened to most of it, but what
exactly is the PURPOSE of filling a cavity? It adds nothing to the
strength and as Simon says, removes a bit of valuable habitat. There
seemed to be something about 'giving the tree a surface to grow over',
which surely is precisely the wrong thing to do. Rolls of wound wood are
much stronger than 'normal' tissue and would add far greater strength
than a much thinner layer of tissue growing over a flat surface. Besides
which, preventing air circulation within the cavity is likely to promote
decay which, of course, one can't monitor once it's sealed behind layers
of foam, cardboard and wire mesh.
I also wonder about the chemicals used in these foams and the vapours
produced as they cure - methylene-diphenyl-diisocyanate 4,4 doesn't
/sound /all that pleasant. (It's also highly flammable)
These guys are obviously well meaning, but in the end it seems to be
much more about people needing things to be tidy and to DO something,
because of course the poor ole dumb tree can't look after itself.




On 27/11/2019 05:55, Wayne Tyson wrote:
https://www.youtube.com/watch?v=efS65VQyDZw

May I have your comments please? It's longer than necessary; I just
jumped
over a lot of it.

Wayne







--
The UK Tree Care mailing list
To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/




-- 
The UK Tree Care mailing list
To unsubscribe send mailto:uktc-unsubscribe@xxxxxx.tree-care.info

The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/