Home repair ignoramus here.

My boyfriend wants to insulate the attic. We don't intend to turn it
into living quarters. We just want to help keep the heating bills down.
He says he wants to insulate both the roof and attic floor. I say just
to do the attic floor. By the way, there is no ventilation in the
attic...no soffits, no ridge vents, no attic fan. This is something we
will be dealing with eventually, but my thoughts about insulating just
the attic floor have to do with allowing the attic to breathe a bit.

What do you folks think?

TIA for your opinions,
bonnie in Oklahoma