Thanks all for the advice. I was talking to a friend today (long time grower) and he also suggested the White Paint. His reasons were its easier and cheaper to touch up and the Mylar needs to be replaced every few months or it becomes less reflective than the paint.

All good advice. Thanks
LordDrow Reviewed by LordDrow 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