duct-tape
i just hung some and duct tape and it is holding great. Why make holes.
if you want a top job and have a perminant building /room use wall paper paste great smooth finish and easy to work with or spray glue please note the spray glue is only an option if room has not crop in it hope this helps.............i just got some 4 ft wide mylar that i want 2 put in my grow room. What the best way 2 put mylar up without worrying about the mylar coming down.
i just got some 4 ft wide mylar that i want 2 put in my grow room. what the best way 2 put mylar up without worrying about the mylar coming down.