Welcome to the Green Forums! Please Register For Free Now!


The Green Forums member base includes well over 3,000 green forums members and 9,000 green forums posts! Be green and join our green community by registering for free today! Registration will give you full access to the Green Forums and takes just a moment to complete.
Please Join Us Right Now!
+ Reply to Thread
Results 1 to 8 of 8
  1. #1
    Junior Member
    Join Date
    Oct 2009
    Posts
    13

    Default How to Create a Green Roof


  2. #2
    Banned
    Join Date
    Jul 2010
    Posts
    5

    Default

    nice video . . . really informative . . . thanks for sharing . . . !!!

  3. #3
    Junior Member
    Join Date
    May 2011
    Posts
    15

    Default

    That's really a useful video. But i have a doubt- can the same plants be used for regions with different climatic conditions?

  4. #4
    Val
    Val is offline
    Moderator
    Join Date
    Aug 2010
    Location
    NW Kansas
    Posts
    1,841
    Blog Entries
    1

    Default

    The Earthship roof is rainwater catchment so can not have any dirt with plants on it*. It is several coats of non toxic acrylic w/mesh at the OSB seams. Rainwater catchment roofs of Earthships are considered "green roofs", too. R-30+ in the trusses below.
    If not used for rainwater catchment, then they have partial burial with at least a foot of good dirt and usually native grasses. The roof has to be engineered for the added heavy load, usually by using 50 to 100% more lumber, sometimes even more. Some use straw bales with the ties cut and 4" of topsoil.
    *Runoff can be used with the proper filtration, but is expensive and has a lot of maintenance, with a dirt and vegetation roof.
    Last edited by Val; 09-30-2011 at 11:05 PM.

  5. #5
    Val
    Val is offline
    Moderator
    Join Date
    Aug 2010
    Location
    NW Kansas
    Posts
    1,841
    Blog Entries
    1

    Default

    I had heard that sawdust can have toxic leachates and is prone to rot, while tires have toxic leachates. Even when used for Earthship walls they must be covered in at least and inch of stucco and painted to keep harmful vapors out. Do you have a link to the UCF studies?? I would like to see what they tested for in the "filtered" water from the vegetated roof, and what different soils and vegetation were tested.
    In the Earthship books they used sand as a first filter, then several stages of particle filters, a Katydin filter, activated charcoal filter and then UV light to get rid of the last of the virus and bacterial contamination. In heavy use with a lot of pollutants/leachates, the filters had to be cleaned very often. The gray water tank was used for interior plant watering, but had to be emptied and sand cleaned after too much detergent use. In reality the greasy dishwater and soapy wash water should have a "Y" valve and go to a black water system.
    From what I read before on vegetation roof water catchment, it was best used outside as gray water for lower gardens, and not for filtering and inside consumption use. Just too much to filter.

  6. #6
    Val
    Val is offline
    Moderator
    Join Date
    Aug 2010
    Location
    NW Kansas
    Posts
    1,841
    Blog Entries
    1

    Smile Great Links!!

    The University of Central Florida did well!! In previous reading on older green roofs used for over a thousand years, natural vegetation on even up to 3/12 sloped roofs of Vikings, and later buildings of western pioneers, cooled the building in summer while keeping it warmer in winter. I had a friend build a concrete arch living roof buried structure home that performs very well. Many Earthships use a living roof for most of the roof, and a rubber membrane for the separate rainwater catchment section. The runoff of a greenery roof certainly doesn't have to have the chemicals of agricultural runoff, seeing it is not chemically fertilized or sprayed with herbicides or insecticides.
    PS: this thread is about various green roofs
    Last edited by Val; 05-06-2012 at 01:44 PM.

  7. #7
    Val
    Val is offline
    Moderator
    Join Date
    Aug 2010
    Location
    NW Kansas
    Posts
    1,841
    Blog Entries
    1

    Default

    Really a green roof can be a rainwater catchment roof, a vegetated roof, and/or solar paneled roof (including solar thermal and solar PV). Combos are great, although solar panels can shade vegetated roofs enough to be not conductive to plant life. Super insulating can be done under the roof when the roof is used for rainwater catchment, solar thermal hot water panels and solar electric PV panels. Vegetation on roofs can be a great summer cooler and winter insulator, with any runoff used for gardens. Usually with the heavy load, they do need more material for the strength needed. Roofs can mount small wind generators like the Air Breeze, but generally they add too much vibration.
    So, basically, there are two types of green roof (paneled with catchment for inside use, and vegetated with or without edibles). A third type, using temporary vegetative matter for thatch roofing that is not growing and not strong enough for mounting solar panels or water catchment gutters is only modestly green, IMHO.
    Last edited by Val; 05-06-2012 at 01:47 PM.

  8. #8
    Banned
    Join Date
    Aug 2014
    Posts
    6

    Default

    saft?

Green Forums Thread Information for How to Create a Green Roof

Users Browsing this ThreadHow to Create a Green Roof

There are currently 1 users browsing this thread. (0 members and 1 guests)

Members who have read How to Create a Green Roof

Green Forums tags for How to Create a Green Roof

Green Forums Posting Rules for How to Create a Green Roof

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
How to Create a Green Roof

Search Engine Friendly URLs by vBSEO 3.6.1