We can undertake detailed root investigation works using up to date airspade techniques, this can aid the placement and design of proposed building foundations, services and other associated development activities.
Tree root remediation works such as vertical mulching, radial trenching, soil aeration and decompaction using a terravent or airspade techniques are all shown to have beneficial benefits around trees to encourage root development whilst minimising root damage.
• Vertical Mulching
• Root Collar Investigations
• Soil Aeration
• Radial Trenching
• Mycorrhizal Applications
Root Work & Investigation
We specialise in undertaking excavations within the rooting area of trees to investigate rooting patterns and depths while minimising the damage that inevitably occurs when disturbing the soil around trees. Our work typically falls into one of the following categories;
Root investigation: We can model the likely extent of a tree’s root system (in accordance with British Standard 5837:2012) and undertake excavations to map out and evaluate the actual revealed exposed roots. The chosen method of excavation depends on an assessment of the ground conditions and soil type and may use mechanical excavators, hand tools or compressed air (Airspade™) to open up inspection pits and trenches.
Once the excavation is opened, we take detailed measurements of the location, depth, diameter of significant exposed roots over 10mm (or as agreed) as well as assessments of their considered origin and health. We can then present this data in the most effective format depending on the brief. Knowing the exact layout of roots allows us to make more precise recommendations within arboricultural impact assessments and we can provide site specific design information for engineers about the possible opportunities and constraints for foundation design.
Root pruning / Service installation: We can use the above techniques to expose roots prior to pruning them in accordance with the requirements of BS3998:2010. This can ensure that the minimal damage occurs to the tree where excavations are needed within the root zone – where services are to be installed across the root zone, this method can enable the trenching specified by NJUG guidelines.
Root assessment: Where visual tree inspection has identified specific concerns for a trees structural root system we can use a combination of hand tools and compressed air (Airspade™) to carefully remove soil from around the structural roots. This allows a detailed inspection where decay or mechanical damage is suspected to have compromised the strength and stability.