Damage to Buildings

Damage to Buildings

Trees can have the potential to damage the built environment in a number of ways. This can include houses, work buildings, schools, hospitals, outbuildings, sheds, walls, roads, footpaths, service conduits, and anything else connected with our living, working and transport infrastructure.

Direct Damage

Direct damage can be caused by roots, stems, branches, leaves and even fruit. Parts may fall, make contact during severe weather, accumulate on surfaces or in gutters, or may simply exert pressure through normal annual growth. Occasionally, the effects of these processes are transmitted to structures via intervening material, such as logs etc placed between a tree and a wall.

To discuss your situation and how we can help you please get in touch.

Heave and Subsidence

Indirect damage covers the processes of tree-related heave and subsidence. The relationship between building foundations, soil properties, soil moisture content and trees is complex and a full investigation is necessarily detailed and time-consuming. In basic terms, tree-related subsidence is most often thought of as the abstraction of soil moisture by roots resulting in soil shrinkage and downwards foundation movement. Heave is the opposite process, where removal of trees results in soil rehydration and upwards movement of foundations.

To discuss your situation and how we can help you please get in touch.


Soil Properties Investgation

We are not structural engineers and our role is to prepare an analysis of tree-related factors that will support investigation by building surveyors. Evidence must be gathered which may include a tree survey, tree zone of influence analysis, growth ring analysis, excavation of trial pits, investigation of soil properties, laboratory identification of roots, description and documentation of crack patterns, and consideration of other potential damaging mechanisms. Soil properties investigated may include soil type identification, and measurement of modified plasticity index, moisture content, suction pressure and bearing capacity.

For more information about soil analysis please get in touch.

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