sealing up my grow room

i was wondering how everyone was sealing their rooms up. my room is just drywall but there are small leak cracks from where the drywall meets the old drywall and cement floor. i was thinking of taking clear painters plastic and hanging it from floor to ceiling. taping it up really good to seal it air tight. bad idea? any help would be huge

What about that foam in a can stuff? I use that all around my house and its awesome.

Painters plastic may not trap smell.... looking getting some 6mm plastic, it will definitely trap all smell/light.

you could get one of those grow tents...if i had to do it all over again i wouldnt hesitate to spend the $$ on a grow tent those things are badass.....
you could just use some caulking and caulk all the cracks up..!!

Agreed, depending on the size of your cracks go with h2o proof caulking

thanks everybody. bIg help!

Fill your crack with caulk...

Uh-huhuh..