Pine's V Garage - Advice please

[chrisgilltreesurgery]

Hi, I would like your advice please on this job.

3 pine to be removed next to a garage, the trees are significantly older than the garage. I know broadleafs should be removed over a period of years to stop heave from changes in the water table, is this the same rule for pine's and if so what would you recommend?

 

Thanks

 

 

Arboricultural Association Approved Contractor

[Alinicoll]

Phased removal is a myth. If it`s gonna heave it`s gonna heave.

 

It depends if it`s on a shrinkable clay soil.

[Tom D]

No issues, in order for heave to happen you HAVE to be on shrinkable clay subsoil, the north east is a low risk area.

 

http://www.subsidenceforum.org.uk/pdf_word/clay-research-no-69.pdf

[treequip]

More that that, the SE clay has to be near desiccation (due to the vegetation) when the property is built

[chrisgilltreesurgery]

The garage was built 25 years ago

[treequip]

The garage was built 25 years ago

 

That's not as relevant as you might think, the first thing is to establish the nature of the sub soil and the moisture content.

 

Personally I think you have been taken in by the staged removal thing, its a myth, perpetrated by engineers who don't understand vegetation.

[chrisgilltreesurgery]

Fantastic info mate I really appreciate it

 

Cheers

 

 

Arboricultural Association Approved Contractor

[mistahbenn]

Looks like the kind of tight job I always get! Good luck.

[chrisgilltreesurgery]

Aye certainly an interesting one, a job where you don't want to forget the lowering kit!!!

 

 

Arboricultural Association Approved Contractor

[AA Teccie (Paul)]

Hi Chris (ArbAC!!!)

 

As others have said, if it's not on (dessicated) shrinkable clay then shouldn't be a problem. If it is, one would hope the trees, and their future growth, and ultimate removal, would have taken into account at the design / build stage. Further, whilst no expert, my understanding is that if there is a problem likely to occur it's far more likely to be subsidence than consequential heave.

 

All in all, I would suggest if the client wants them out, then out they go.

 

Cheers..

Paul

 

PS Others have correctly stated there is no evidence to support the claim for phased removal and, as others have also said, IF it's gonna heave it'll do so anyway.

 

PPS Seen subsidence many times (in Cheltenham as a TO) but heave only once....it did run into many hundreds of thousands in costs tho as they built 12 1/2 million pound houses on an old woodland site and whilst the foundations took account of this this floor construction didn't n hence they all popped up after about 2 years...OOOPS

[chrisgilltreesurgery]

Customer rang and confirmed I have the job if removing these trees so will post pics on the Bang Tidy thread

 

 

Arboricultural Association Approved Contractor