How flat did you manage to get the mylar? You might want to try gluing it to sheets of poster-board so it lays nice and flat before tacking it up.
stinkyattic Reviewed by stinkyattic on . Mylar???....... wtf? i got a new light 600w hps with digital balast, in a plain white closet my light meter (tes1335) showed 41204 LUX, then today i covered every wall, door, and ceiling with good quality mylar from htg supply and the new reading for light is 40106 LUX :wtf:........ am i missing somthing?...... Rating: 5