• You mean the barrier fabric, which ensures there’s no chance of rainwater leaking down into the building Q23 / Q24
  • supermarkets don’t normally employ gardeners




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    supermarkets don’t normally employ gardeners. 
    Q21
    /
    Q22
    Student:
    What I thought was, if they made it a community garden rather than a simple low-maintenance
    green roof….
    Tutor: 
    So there’d be public access?
    Student: 
    Oh yes! Then there’d be a sense of ownership in the local community and people could 
    take responsibility for it, instead of the supermarket paying a commercial company, and It’d
    really boost their public relations.
    Tutor: 
    That’s a good point. And have you been looking into how rook gardens are built nowadays?
    Student:
    I’m still exploring that, but if take advantage of the latest technologies for roof gardens, it
    shouldn’t be too difficult. But in any case, you have to use lightweight materials.
    Tutor: 
    But that’s a matter of making the right choices. You can even use quite traditional ones such 
    as wood for the planting areas.
    Student:
    Yes, that’s what I thought. It’ll look good and it isn’t too heavy.
    Tutor:
    But the basic construction, the issue you have to address first is the material used between
    the building and the garden.
    Student: 
    You mean the barrier fabric, which ensures there’s no chance of rainwater leaking 
    down into the building? 
    Q23
    /
    Q24
    Tutor:
    Yes, nowadays that is very good, and quite easily sourced.
    Student:
    Then on the other hand, there’s the business of water within the roof garden itself.
    Tutor: 
    You mean drainage? That’s an important feature of the construction in any roof design.
    Student:
    Yes, but I think most drainage issues have been well understood for quite a long time.
    Tutor:
    OK, but another thing is with plants in an exposed situation,
    Q23
    /
    Q24
    you usually need 
    to 

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    supermarkets don’t normally employ gardeners

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