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Roof top irrigation.

Discussion in 'Irrigation' started by CAPT Stream Rotar, Jul 28, 2014.

  1. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Posts: 5,911

    Who know what about anything ?

    There is low flow 6 @ 20 .

    We are thinking about doing it in 1/2 inch PVC to 6 mm mini drip .

    Anyone have any thoughts?
    Comments ?
  2. greenmonster304

    greenmonster304 LawnSite Gold Member
    Posts: 3,097

    What are you watering
    Posted via Mobile Device
  3. CAPT Stream Rotar

    CAPT Stream Rotar LawnSite Fanatic
    Posts: 5,911

    Posted via Mobile Device
  4. AI Inc

    AI Inc LawnSite Fanatic
    Posts: 25,390

    In my opinion , micro irrigation is too fragile. Im sure others will disagree but everytime Ive come across it it was nothing more then a pile of pieces.
  5. irritation

    irritation LawnSite Gold Member
    Posts: 3,248

    Yep, most are abandoned shortly after, same goes for a lot of drip zones.
  6. BrandonV

    BrandonV LawnSite Platinum Member
    Posts: 4,220

    shrubblers. You know how much I hate drip and with a roof am I assuming you're always going to need the irrigation? not just an establishment thing? Long range heads are always better but if depth is an issue have you thought about the hunter mat system?

  7. Is this a being built or is it new construction?

    Have weight (added water to soil) been addressed?

    Drainage, has this been addressed?

    There are quite a few buildings here done with environmental friendly roof tops in the area. The Gap Building, now leased to YouTube.Com here in San Bruno is one of them. They had to install special drainage and irrigation for it. The highlight was how they used Netafem inline emitters at 12" intervals. Native grass was used .

    I got to see them install the drip and valves and during the show and tell, all above questions were brought up as lesson learned issues.

    The building, well at street level you don't see it. However, at higher elevations there are 2 freeways where if you know what to look for you see the building outline, but just glancing or peripheral, vision building is hidden by the grass. It looks like an empty lot or small field.
  8. GreenI.A.

    GreenI.A. LawnSite Silver Member
    Posts: 2,132

    We have done installed irrigation on a number of roofs in Boston. A new construction office building that is mostly ornamental grasses and a bushes, that utilizes drip, a new construction condo building that utilizes drip and micro. We have also added irrigation at a number of roof top gardens on existing buildings using drip, micro drip, micro sprays and bubblers. If the building is designed for a roof top garden, or engineers ok the weight to add one, you do not have to worry about the additional weight of the water logged soil. When they figure in the weight of the garden, they also add the weight of multiple feet of wet snow.

    When we have done full roof top gardens onto existing rooftop patios pound is accounted for. We have the acceptable weight limits provided by the engineers. Even after figuring in all the soil, stone, pavers, furniture, mature weight of trees, furniture, kitchen, max occupancy of people and 6' of wet snow, we have not come close to the capacity provided.

    Just don't use spray heads. I know the new science building the built up at Bridgewater state university has a couple gardens. There's a small ornamental grass garden with drip on the second floor and then a larger one with sprays up on the roof. When the wind blows people freak out thinking someone is peeing of the roof at them.
  9. I can attest to that personally. At a place that my Uncle does the roof top grounds, we were flushing out a couple 12" R.B. 1800 with the orange flushing caps still on. With the wind, 15 ft below, we completely misted 5 S.F.'s finest Police officers. Really got them wet bad. Needless to say, they weren't too happy. Ah the joy of living in a major big city.
  10. mitchgo

    mitchgo LawnSite Silver Member
    Posts: 2,780

    I was here the other day. This was about a quarter of it. All drought tolerant plants , lots of grasses with netafim


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