What Is Tree Cabling And Bracing?
A cable is high-mounted flexible steel whose job is to limit the separation between two stems. A brace is a threaded rod driven right through a split and drawn up until the crack is held closed.
Healing is not what either provides. They provide time, and safe time at that, for a tree already headed toward felling.
Which Trees Around Scotland Need Cabling?
The typical candidate is an old tree that grew up in the open, and Scotland has a good many. A number date from the 1840s, and residents value them for good reason.
Without neighbours crowding it, a tree grows broad and frequently splits into a pair or trio of stems near the ground. Where bark gets trapped in that crotch the union is defective from the outset, because bark does not fuse with bark, and the defect works its way upward season by season.
Where Is A Cable Installed?
Tree cabling and bracing goes well above the union, about two thirds of the distance to the ends of the branches. From there the cable checks the extremes of movement without concentrating stress in a single place.
Some movement is meant to remain. Reaction wood forms only where a tree bends, so the purpose is trimming the worst of the swing, not eliminating it.
Should The Crown Be Reduced As Well?
In almost every case. Cutting the canopy back at the same time leaves the hardware far less weight to contend with, and tree cabling and bracing lasts better as a result.
Steel by itself ends up holding mass that could have been cut away at lower cost. The usual recommendation is both together, listed as separate items so each price is visible.
When Is Cabling The Wrong Answer?
There are trees where cabling is simply a waste of money, and we would rather say that:
- Decay at the base, where holding the canopy does nothing about the true problem - A union already parted to the point that hardware alone changes nothing - A young tree, because a single correct cut solves it for good at a fraction of the cost - A tree failing generally, for which felling is the more sensible answer
Does Cabling Need To Be Inspected?
Yes, and almost nobody else puts it in writing. Corrosion attacks the steel while the tree slowly engulfs the anchor points, until you cannot see any of it from below.
Go fifteen years without looking and the steel may have stopped working long ago, while the canopy above carried on growing on the assumption of support. Our quote specifies when it should next be examined.