Polystyrene is utilized to generate foam board insulation with a variable R-worth of three.eight for every inch to 5 for every inch, based upon whether or not it’s expanded polystyrene (styrofoam) or extruded polystyrene, which can be recognized via the blue or pink shade.At last, attach a piece of rigid foam on top of the hatch doorway with glu

Cellulose — recycled, ground-up paper with boric acid added for insect Management and hearth resistance — provides a better attic insulation option than batts. If you choose to put in cellulose you, You should buy the insulation in luggage from your neighborhood property-advancement store.varieties of attics and a number of them are concealed.