Hose bibs - permanent irrigation

Project location: Czech Republic

April 18, 2016

Petra Hajná

Sustainability Consultant
Skanska Czech Republic

LEEDuser Basic Member

189 thumbs up

Project location: Czech Republic

April 18, 2016

Hi LEEDers.
I tried to pursue the credit via calculation because the roject will use the hose bibs on regular basis for the building lifetime, not as a temporary solution. When I asked manufacturers about efficiency of watering by hose, It was not possible for them to answer. Is there a number that is acceptable for reviewers? I used 0.8 for IE coefficient, now I am asked to provide manufacturers documentation. Quite frankly, I think this is "unobtainable".

If I have permanant irrigation system only on a 50% of green surface and the rest has no irrigation, how do I calculate watering demand?

Thanks for any advice...

Petr

Post a reply

Andrey Kuznetsov

ESG consultant, LEED AP BD+C
Self Employed

LEEDuser Basic Member

33 thumbs up

April 20, 2016 - 9:26 am

I suppose "I am asked to provide manufacturers documentation" indicates that you already entered documentation review and this request is from reviewers.
In such case there is only one possibility - gain any (semi)official letter from producer/manufacturer stating that "Coefficient of irrigation efficiency can be assessed at...". But it's literally grasp at a straw.

If you still can change compliance path, it's preferable to use path "no permanent irrigation".

"If I have permanent irrigation system only on a 50% of green surface and the rest has no irrigation" - it's the same project? If yes, variant "no permanent irrigation" is not relevant. In such case I would utilize the same greening area for a baseline and proposed design, and utilize the same areas of watering in both cases - i.e. if half of proposed case greening area is not irrigated, the same area wouldn't be counted as irrigated in a baseline case.