Don't forget though:
New house (or old) + no trees nearby = no need for exceptionally deep
foundations
...leading to:
Trees planted (planning condition or over the years) + trees growing - deep
foundations = problems!
Maybe a closer look at the way landscape schemes are designed would address
part of the problem. You could of course insist on exceptionally deep
foundations for all new properties but I suspect that the economy may be a
bit of a barrier there. Or stop people planting trees altogether! We can't
have it all ways.....can we?
Alistair McLeod
Pinnacle Tree & Landscape Solutions Ltd
2 Prescot Road
St Helens
Merseyside WA10 3UB
Tel: 01744 610 555
Fax: 01744 738 693
Email: alistair@xxxxxxxxxxxxx.co.uk
www.pinnacle-tls.co.uk
-----Original Message-----
From: Peter Thurman [mailto:thurmanconsult@xxxxxxxxxxx.com]
Sent: 28 October 2009 15:35
To: UK Tree Care
Subject: RE: Is a tree owner liable for heave?
Yes but:
Tree + Shrinkable soil + building with adequate and appropriate foundations
= no tree related subsidence
I think that's what Bill means
-----Original Message-----
From: Liam McKarry [mailto:Liam.McKarry@xxxxxxxxxxx.gov.uk]
Sent: 28 October 2009 11:03
To: UK Tree Care
Subject: RE: Is a tree owner liable for heave?
Subsidence isn't a tree or a building problem it's a problem with soil
that is exacerbated at depth by tree roots affecting the moisture
content of it.
There is natural fluctation in soil moisture content that occurs as a
result of seasonal changes in weather, but these really only affect the
upper strata of soil. Grass does cause some increases in the level of
change but not at any great depth.
The only thing that causes cyclical, seasonal removal of mositure from
soil at significant depth is trees or in rare circumstances large shrub
masses, simply by roots being able to grow to the depth required and the
transpiration rates being significant enough to affect moisture contents
on a localised level.
-----Original Message-----
From: Burke Nick (DEL) [mailto:Nick.Burke2@xxxxxxxxxx.gov.uk]
Sent: 28 October 2009 10:42
To: UK Tree Care
Subject: RE: Is a tree owner liable for heave?
' I can't remember when you first logged on to UKTC Paul, but over the
last
decade(?) I think I've got up people's noses by fairly flatly refusing
to accept that subsidence is a tree problem. From my perspective it's
always a building problem although I have to accept that losing a
nondescript tree is here nor there if it quickly and cheaply stabilises
a building, thus avoiding some unfortunate householder a pile of
disruption and angst.
It always seems to me to be a fairly straightforward matter to enquire
of the Engineer why he thinks there's potential, invariably it's because
he/she thinks the foundation is inadequate which I point out is hardly
the tree's fault..... I have undoubtedly lost business (contracting and
consulting) because of this. I don't know if I regret that or not.
Bill.'
Nicely put Bill. Having dealt with subsidence in the south a fair bit
and I was always annoyed at the lack of information that would be
provided. It was the tree's fault and there was no point checking
anything else.
Nick Burke
Tree Inspector
Olive Grove Depot,
Olive Grove Road,
D.E.L. Streetforce
Sheffield City Council,
Sheffield,
S2 3GE
T: 0114 2053103
nick.burke2@xxxxxxxxxx.gov.uk
-----Original Message-----
From: Andersonarb@xxxx.com [mailto:Andersonarb@xxxx.com]
Sent: 27 October 2009 20:47
To: UK Tree Care
Subject: Re: Is a tree owner liable for heave?
In a message dated 27/10/2009 17:25:08 GMT Standard Time,
pswatts@xxxxxxxxx.com writes:
Pat on the back for straight forward thinking.
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