Which is best? Batts or rolls?
In my large and added-onto-over-time attic, I've had newsprint fill blown in between the floorboards, about 6 inches worth.
But I don't think it's possible to have too much insulation. Now, I've got to rework the basement walls, now that the plumbers are done, and seal up some bays that my chuckleheaded contractor missed, but I do think I'd like to add another layer of insulation to the attic, because you can never have too much insulation in Zone 5b.
I'm thinking the best and simplest way is for me to go to the local home improvement store and get some pink stuff, and I understand I don't want a vapor barrier on stuff I put in the attic (because it's not a good plan to condense moisture right next to the eaves).
Which is best, batts or rolls?
Is the only difference ease of installation?
Plus, what I'm told is just roll out the rolls, all the way to the eaves. No need to tape or seal; just roll 'em out next to each other. Does that seem right?
NOTE I don't want to get foam because it's too hard to remove and I don't know about weird vapors.