Attic insulation

Hi everyone. I was wondering if my attic needs insulation. Right now I only have insulation on the buttom(pink stuff) but not where thr roof is. There is a big difference in temperature in the summer time where it's probably 10-15 degrees hotter on the second floor than the first.

Hi everyone. I was wondering if my attic needs insulation. Right now I only have insulation on the buttom(pink stuff) but not where thr roof is. There is a big difference in temperature in the summer time where it's probably 10-15 degrees hotter on the second floor than the first.