What about bugs?

Heather Marie Wells
Shiloh Museum of Ozark History

>From: Carol Reid <[log in to unmask]>
>Reply-To: Museum discussion list <[log in to unmask]>
>To: [log in to unmask]
>Subject: Consequences of a "Living Roof" on new museum
>Date: Wed, 26 May 2004 08:49:35 -0400
>
>Regarding your concerns re: consequences of a living roof on a new museum,
>the new Canadian War Museum building currently under construction in Ottawa
>Canada is going to have just such a living roof covering about 50-60% of
>the
>building.
>
>We have been told that with the appropriate protective membranes that there
>should be no problems with leaks (and even if it does most of our
>collections are at least 1 to 2 floors below this roof and that any leaks
>would affect only the office area - not that there will be any!), that we
>will actually save money on the heating and cooling as this grass roof is
>energy efficient and low maintenance. From our brocure on the new building
>"The environmentally sensitive landscaped roof is both low-maintenance and
>self-seeding."
>
>I'm also including some information I've read on grass roofs:
>With a properly constructed grass roof using a series of carefully
>engineered layers it can work: a water- and root-repellent membrane is
>installed on top of a reinforced roof structure, a drainage layer separates
>growing material from the underlying membrane, a filter cloth keeps the
>drainage layer from getting plugged by the growing medium, which
>constitutes
>the top layer. This growing medium is designed to be as light as possible
>and still support plant growth. And there are supposed to be long term
>savings which can offset the cost of installing a green rooftop. Green
>rooftops last twice as long as standard roofs, reducing maintenance and
>replacement costs. They also muffle sound, creating a more efficient work
>environment, and then there are the environmental benefits; they capture
>and
>filter air pollutants and retain as much as 50 percent to 70 percent of the
>storm water that they capture, this reduces storm water contamination and
>the risk of flooding, plus a grass rooftop supposedly can't get any hotter
>than about 77 degrees. This innovative technology can help relieve city
>smog
>and cut energy consumption. With enough green roofs, the temperature of an
>entire city can decrease. A 3- to 7-degree temperature drop translates to a
>10 percent reduction in air conditioning requirements. For a one-story
>structure with a green rooftop, cooling costs can be cut by 20 percent to
>30
>percent.
>
>And if you are intereste to see what our new grass roof is supposed to look
>like click on the  links to the new Canadian War Museum I've included
>below;
>http://www.warmuseum.ca/cwm/new/brochure_cwm_en.pdf
>http://www.warmuseum.ca/cwm/new/ca_bldge.html
>http://www.warmuseum.ca/cwm/cwme.asp
>
>We are told that the grasses that will be used to cover the roof will be
>native grasses already in use in the Ottawa area for landscaping and that
>they are slow growing and don't get particularily tall, that the roof would
>only have to be mowed once or twice a year!
>
>I'm actually looking forward to seeing the completed building - already it
>is fantastic to see and construction is not due to finish until later this
>year.
>
>Carol Reid
>Collections Manager, Archives
>Canadian War Museum
>330 Sussex Drive,
>Ottawa, ON, Canada,
>K1A 0M8
>
>www.warmuseum.ca
>
>tel: (819) 776-8661
>fax: (819)776-8657
>e-mail: [log in to unmask]
>
>=========================================================
>Important Subscriber Information:
>
>The Museum-L FAQ file is located at
>http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed
>information about the listserv commands by sending a one line e-mail
>message to [log in to unmask] . The body of the message should
>read "help" (without the quotes).
>
>If you decide to leave Museum-L, please send a one line e-mail message to
>[log in to unmask] . The body of the message should read "Signoff
>Museum-L" (without the quotes).

_________________________________________________________________
Watch LIVE baseball games on your computer with MLB.TV, included with MSN
Premium! http://join.msn.click-url.com/go/onm00200439ave/direct/01/

=========================================================
Important Subscriber Information:

The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes).

If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).