Quote:
Originally Posted by penguin  White paint does provide more diffuse reflection than reflectix, and reflectix provides much more diffuse reflection than plain mylar. However, although uneven lighting is not optimum, I am little concerned about photoinhibitive damage caused by specular reflection unless an encosure is already seriously overlit.
I am not aware of any reason that practical lighting/ventilation requirements should not scale linearly with the size of the enclosure. 
penguin |
As you said, if direct lighting isnt phoinhibitive, reflection either. Not concern about, just even lighting is more efficient
But there some reason to consider lighting/ventilation depending of the scale. Basically, due to small cabs are often overlit, and have more watts per cubic ft, but cost per unit surface of reflectance material isnt relevant, while in large grows its more relevant.
Of course reflectix is a good choice, but the mix latex flat white paint+barite is far cheaper, more reflective (or same, but not less), not insulator, with far easier manteinance and having a near perfect lambertian reflection.
But ive notice barite is difficult to find in your countries at retail level. Its the only disadvantage. Why about if any of you suggest hydro shops owners to buy 25 Kg bags?
Or better, why about some of you do business with it? (ordering a paint manufacturer a custom production and selling it in bottles to hydro shops? It still would be a cheaper and better choice for "consumers".
