I left maybe 5-6 inches on top of a 14 foot barn roof wired with chicken wire and heavy duty staples. 3 raccoons got in by pulling the wire loose on 3 corners and killing over 1/2 of my flock and were gone the next morning. I can't understand how they can get in and then find there way out and killing so many at once. I went and stapled it all back and hammered some nails and boards on top of that. That night they took there little hand and reached though the chicken wire and pulled my rooster head off being he slepted on a perch in that corner. Poor baby just tore me up. Well it was on then. Since then I have bought a night time camera (got pics of 2 big coons hanging on the wire), live trap, heavy duty hardware wire, 22 rifle, flashlights and those stick up night light for inside and a can of Sardines for the coons. Needless to say I haven't lost anymore chickens and 2 coons have gone away for good. I haven't caught the 3rd one yet but we'll get em. I think if you have the chicken wire you still need to put the hardward wire too with nail. I have it on the outside then on the inside doubled now. The trap is set every evening and will be from now on. Needless to say my husband thinks I've lost it