yellow insul. in attic - do i put the white stuff above or below it

[jasonshohet]

I've got the lower R-value insulation (yellow) in attic... want to put higher R-value insulation down. Can i just lay it on top of the lower R value stufff... or is it better to have the higher R-value insul. beneath the lower ;)

kind of a dumb question but figured the experts out there will have an opinion jason shohet

[Mikepier]

No it does not matter. Just lay it on top.