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Sin City Special 19 Nissan Skyline R30 Drivingline R30 PINK Unfaced Fiberglass Insulation Batt 24 in x 48 in (8Bags) If you need your home's insulation to deliver If you need your home's insulation to deliver comfort try the Owens Corning EcoTouch as it's soft to the touch, easy to cut and install It helps your home stay cool in the summer and warm in the winterThe Rvalue of most insulations also depends on temperature, aging, and moisture accumulation When calculating the Rvalue of a multilayered installation, add the Rvalues of the individual layers Installing more insulation in your home increases the Rvalue and the resistance to heat flow In general, increased insulation thickness will R 30