Cabling & Bracing
What does that mean? Cabling and bracing are the two most common forms of structural support for trees. They involve installing flexible cables or rigid rods to reduce the chances of failure of defective unions. Cables are installed high in the tree, at least 2/3 the distance from the defect to the crown. Rods are installed much lower, just above and/or below the defect. Cables are always stronger than rods because of their greater leverage. Cables can be used alone, but bracing is always supplemented with cables. Other, less common forms of structural support are guying and propping. When would you use such a technique? There are three major uses of cabling and bracing:
Be sure to ask yourself some questions first:
Tightening the eye bolt with a cable attached...How should it be done? First, choose a certified arborist who is knowledgeable and experienced in this area. There are many important technical aspects to correct cabling and bracing. The strength and material of the hardware, the arrangement of the cables (simple, triangle, box) or rods (single, multiple, etc.) and the location, type and size of the entries made into the tree
Be sure to specify in writing that "All work and materials shall be in accordance with ANSI, A300 Tree Care Standards (Part 3) -- 2000."