I was told that insulation in the framing inside the concrete block walls won't do much good, that the heat of the attic is warming the air in the ducts and that's making the rooms along the outer walls less cool. That doesn't sound quite right to me.

BUT, I am looking at putting in some radiant barrier insulation on the underside of the roof and adding some blown-in insulation in the attic. Can't put trees along one side (too close to a fence) nor in the back as we'll have a pool/deck added next year)

BTW, does Scotts Bonus S have any affect on insects or should I do a different application w/a different product? Mostly looking for ant control but certainly most common lawn pests down here.