DRAINAGE & LANDSCAPING
SHOUTING FROM THE TREETOPS: THE BENEFITS OF TREE PITS The specification of trees within an urban area can provide many benefits, including improving inhabitants’ mental and physical wellbeing, to filtering urban pollutants and aiding the offset of carbon emissions. HOWE GREEN
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owever, the planting of trees within landscaped or paved exterior public spaces can also present a range of potential complications that must be considered at the very initial design stages. Here, Chris George, Business Development Manager at Howe Green, explores the wide-ranging benefits tree pits and tree grilles offer, and the key elements specifiers should consider. Whilst the planting of trees in urban locations can contribute to the reduction of the city or town’s carbon footprint; it is essential any trees or saplings are planted within the provision of a healthy and secure environment. This will ensure the successful nurture and facilitation of the tree’s longterm growth, with adequate root management, access to water and the condition of the soil; all essential elements that must be considered. External tree pits and tree grilles present a popular choice as they can successfully alleviate the potentially FC&A – SEPTEMBER – 2020
negative effects an urban environment can have on a living organism, whilst simultaneously providing inconspicuous access to electrics, valves, pumps and water features. Tree pits and tree grilles also prevent any potential damage to the urban environment as the tree roots are securely managed within the tree root ball. This eliminates the opportunity for the roots to spread up and across the landscape, where they could cause damage to the flooring and present a dangerous trip hazard. When specifying tree pit covers for upcoming landscaping projects, professionals should consider solutions manufactured of stainless steel as they provide long-term resistance to rust and corrosion. The addition of a top edge seal also prevents dirt, grout or grinding waste ingress for increased longevity and resilience. This style of tree pit also aims to eliminate the requirement for slither cuts of stone, which often leads to recurrent and often costly breakages. 26
