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

https://jeffreyzqow395.wordcanopy.com/posts/why-old-attic-insulation-ruins-your-indoor-air-quality-2

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.