Tree removal close to property

[difflock]

I have perused verious threads relating to tree related(alledgedly!)subsidence and heave, yet here in N Ireland, insofar as I am aware, it is unheard of.

Guessing it is always so wet over here that the trees can never extract enough moisture to cause these issues.

Or am I barking up the wrong tree?

[Mark J]

12 hours ago, difflock said:

I have perused verious threads relating to tree related(alledgedly!)subsidence and heave, yet here in N Ireland, insofar as I am aware, it is unheard of.

Guessing it is always so wet over here that the trees can never extract enough moisture to cause these issues.

Or am I barking up the wrong tree?

It's more to do with the underlying geology of Norn Iron; subsidence/heave can only occur in soils with a shrinkable clay element. Subsidence is pretty rare here in the NE of England.

[difflock]

1 hour ago, Mark J said:

It's more to do with the underlying geology of Norn Iron; subsidence/heave can only occur in soils with a shrinkable clay element. Subsidence is pretty rare here in the NE of England.

But our house, and many like it, are built on sticky, slippery when wet, impermeable glacial outwash clay  .  .  .

[Mark J]

Just now, difflock said:

But our house, and many like it, are built on sticky, slippery when wet, impermeable glacial outwash clay  .  .  .

Climate plays a part too. 

These are good books if you're interested in the technicalities of it all: 

Tree Root Damage to Buildings: Causes, Diagnosis and Remedy Vol 1: Amazon.co.uk: Biddle, P.G.: 9780953308613: Books

WWW.AMAZON.CO.UK

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Buy Tree Root Damage to Buildings: Causes, Diagnosis and Remedy Vol 1 only available with VOL 2 by Biddle, P.G. (ISBN:...

 

[Jon Heuch]

On 15/03/2022 at 11:06, openspaceman said:

Aren't clay subsoils in the SE still recovering from having water squeezed out of them by the weight of ice 10000 years ago?

No. Examine maps where geologists explain where glaciers extended to. They didn't get as far as London. Overconsolidation (the technical term) refers to materials that may or may not be still present over the top of the clay in question. i.e. geological material above the clay in question has been eroded away. Alternatively, human activity has removed the overburden and the clay is now able to expand if given half the chance.