Thanks Sevver,

I am suppose to be doing the whole permit and inspector thing but decided as usual to just do it right and forgo the whole process with the county. I figured that if I get caught without the permit at least it will be done right and worst case I will just have to pay the permitting cost.

Thats a good idea about the tin and taping it. I guess I am more concerned about possibly damaging the liner while cutting the new hole.

Thanks again.