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Tree Structural Testing with Resistogragh

Resistograph Testing

Sometimes, a tree can develop issues that compromise its stability and strength. These problems may manifest visually, such as the presence of a cavity, hollows, fungus at the base and basal flares (the parts of the root emerging above the ground). To ascertain whether a tree is at risk of failure, which could involve it falling over or breaking at a weak point, it is crucial to determine the presence and extent of decay. The Resistograph® machine plays a pivotal role in addressing these important questions.

The Resistograph test is fast, accurate and reliable

It uses a micro drill that measures the resistance of wood and translates it on a graph. Virtually no damage as the tiny drill is 1.57 mm.The electronically controlled micro drill provides accurate information on the Density of timber and translates it onto a computer as it drills. This is done while it is drilling and presents it as a graph. The test will provide you with measurable data to determine to what extent the tree is at risk of failure.

Local council regards this test highly

The Resistograph® was designed by Frank Rinn in Heidelberg, Germany.

The Resistograph® is a sophisticated electronically controlled drill that provides unsurpassed accuracy in measuring the relative density of wood in trees and timber structures, widely used by research scientists and Arborists requiring the best there is in the world of resistance drilling.

We use the latest machine a R650-SC which is the top model designed for the tough, hard timbers of Australia.

Call us today if you would like a fully trained and certified Arborist for your tree care.

arborist testing tree

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