need a little help

Im planning to turn my attic in to a grow room im just a pit paranoid about the ghetto birds is there anything i can put on my walls so it cant see the heat of my hps light thanx guy u da bomb

put black and white poly up. black side towards the walls and white side for reflectivity towards your grow. not sure if ghetto bird can still pick up your heat signature with the poly. but isnt that illegal w/o a warrent...checkn heat sigs?

thanx guy i found the stuff i was lookin for it was mylar lightite adf reflective sheeting