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Month: May 2017

root protection areas

Root Protection Areas: No Go Zones?

To understand Root Protection Areas (RPAs), first we must understand how the RPA is calculated. The British Standard (BS5937: Trees in Relation to Construction and Demolition – Recommendations) sets out that the radius of an RPA from a tree is calculated as twelve times the diameter of that tree as measured at 1.5m high. Inevitably…