Flat white paint would help reduce any heat problems. (Mylar reflects heat as well as light. Weedhound proved that....:thumbsup
Dutch Pimp Reviewed by Dutch Pimp on . Question regarding Mylar and uneven surface I am a medical user and attempting to grow my own for the first time. I have a shed where I am going to build a grow box. The question I have is.. If you look at the picture below, will there be a problem with I use that wall with the support beams and Mylar? Should I tack up a flat board first so the Mylar is flat? or just wrap it around the support beams? If I do that will that cause a problem with heat spots? Any help would be much appreciated and when I get this going I will be doing Rating: 5