ABOUT WALL INSULATION SOLUTION

Polystyrene is used to produce foam board insulation with a variable R-value of three.8 for every inch to 5 per inch, according to irrespective of whether it’s expanded polystyrene (styrofoam) or extruded polystyrene, which may be identified from the blue or pink color.What’s the ideal attic insulation? That will depend on your definition of �