Do I have to put an irrigation system for green roof?
I am modelling a green roof in OpenStudio (I put the properties of each material constructions) but the results are not logical. I'm wondering if it maybe because I don´t put anything of irrigation.
What roof construction are you using?
Plants, Soil, drainage layer, polypropylene layer, drainage layer, roof.
Im putting the materials constructions in that order.
Why do you think the results aren't logical?
Because the results say the cooling load of the third floor doesn't change. It goes to 1,98 ton to 1,97 ton or less.
Ya, I can't speak to the thermal characteristics you're using for your materials, but with your current setup I think the main things you're not accounting for (and you can't in explicitly in OS to my knowledge) is the evaporative heat loss and your change in thermal mass when you go from saturated to dry soil. Did the object I mentioned in my answer help?