Cabling & Bracing

Tree supplemental support systems are used to provide support when the structural integrity becomes a potential risk; however, the only thing that can heal a tree is itself. For example, when limbs become overextended, or a lead begins to split, a cable or brace is required to mitigate the risk of failure and prolong the life of a tree. Some limbs may tend to have a growth branch structure that is over-extended. Once the ends of the branches become heavy, cabling-embracing may be the solution.

These systems need an annual inspection by a certified arborist and replacement after 5-10 years, depending on the tree condition. A schedule of an inspection may depend on the type of cabling system, or through rod/threaded rod.

Weak branching unions (tree crotches or V’s in the tree) may need the use of a cable. A wide branch union is ideal. This is because the top wood forms and protects the union and its structure from failing. This shows when a large tree section splits from the base of its branch union.

Cables are supplemental structural supports, intended to reduce the risk of failure from weak branches and multiple stems.
 
Braces or Through-Rods are threaded rods that are installed through unions of weak branches and multiple stems to provide more rigid support from torsional (twisting) forces that can occur at the tree’s base.

Steel Cables

We only use high-strength steel for our cables which we install in the tree using eyebolts. This solution is suitable for large limbs that need extra support. Weight ratings differ between sizes.

Dynamic Cables

This is a new system of cabling which does not penetrate the wood with a steel eyebolt. The rope opening allows the tree to grow without restricting diameter growth. We then insert a shock absorber between the two limbs inside the cable. The system requires more inspection than steel cables. This allows the tree to grow without penetrating the internal wood structure. This option is great for trees with over-extending branches. It also works great for weak branch unions.

Bracing/Through-bolts

When branch unions need extra support, we install a threaded-rod through the unions. In essence, the threaded-rod protects the branch union from splitting. This is especially great for some trees with many stems at the base. In some cases, split limbs on small trees will come back together. We recommend through-bolts on a case by case basis. This last method requires a vigorous growth pattern.

All existing tree cables and through-rods/threaded-rods need routine inspection. These methods are meant as supplemental support, but they aren’t a full proof prevention for limb failure. Arborists must examine the tree’s structure before installing cabling.

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G&V

G&V provides the best tree trimming service in Springfield, Virginia and the surrounding areas.

6434 Brandon Ave Suite 204, Springfield, VA 22150 - Phone: (703) 569-2570


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