Arboricultural Practice
Note 4 - Root Barriers and Building Subsidence.
APN4 is a short guide which introduces and discusses the role of root
barriers as a means of preventing root activity near building foundations. The document
describes their design criteria and materials that might be adopted in their construction.
APN4 contains the following headings.
Trees - A mixed blessing.
The root cause of problems (direct & indirect damage).
Reducing the risk - What is required?
Suitable materials.
What about the trees?
Concluding thoughts.
Appendix
Materials for root barriers.
Non-woven geotextiles.
Woven geotextiles.
Polythene (e.g. HDPE)
Reemay Rootbarrier
APN4. Eight A4 pages with diagrams. Published in 1997 and available direct from the AAIS.
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