Thanks for the feedback! We thought it was interesting, too. Logic says that diamond mylar which is designed for this context should outperform most of the other materials. But, as mentioned in the video, we used a generic and unbranded diamond mylar from our local hydroponics store. Other brands and versions may perform better, or, at least I hope they do.Interesting results - everything one reads on the internet claim Grow room Mylar to be more reflective than Aluminum foils, so this multi-point test showing Al foil and emergency Mylar to be more reflective is quite something. I wonder if there are more people who have done this test and come to the same conclusion?
I enjoyed that, thanks!
iirc from another similar test a while back that emergency blankets or foil had caused hot spots on a plant, supposedly from the creases. May it just be that those materials are a little too efficient if VPD and DLI weren't taken into consideration? idk
Excellent test, thanks very much for sharing. As you say, surprising results. I thought that painted white walls would do a bit better, and I would not have predicted the very large effect of walls vs. no walls. It bears keeping in mind though that the roll of wall reflectivity would vary a lot with different sizes of grow space - the larger the space, the lower the role of wall reflectivity.Hi guys!
We just made a short video where we test the reflectivity of different materials commonly used in DIY grow spaces.