Drafty attics can raise Escondido energy bills because air leaks weaken the barrier between attic

https://johnnymvnk630.rivetgarden.com/posts/how-rodents-sneak-into-san-diego-rooflines

Drafty attics can raise Escondido energy bills because air leaks weaken the barrier between attic and living space; sealing and insulating help reduce heating and cooling costs.