[OSM-talk] Church building rendering bug?

[M∡rtin Koppenhoefer]

2010/9/11 Martin Fossdal Guttesen <mguttesen at hotmail.com>:

>> there could also be grass on the roof (green roof, begins to become
>> popular due to environmental advantages).
>
> the last part is probably ment as a joke, but here in Faroe Islands is is
> common to have grass on the roof
> one example
> http://www.fossdal.dk/ovarakinna.jpg


no, this wasn't a joke. With modern construction methods it is
possible to apply those to all kinds of buildings (mainly because
there is durable protection against the roots and moisture available,
which otherwise would destroy the top of the building by the time). In
Berlin for instance this is even suggested by the government for
highrise buildings and for all kind of new buildings (hotels, offices,
etc,). It is environmentally sustainable as it augments the insulation
capacity of the roof, cools in summertime because of the evaporation
and warms in wintertime (and due to big mass augments the "thermal
inertness"(?)). It also reduces the amount of precipitation water that
goes into the sewers.

cheers,
Martin