Automotive Camper Van Insulation Product Specifications Roll width: 60"; Thickness: 1.65 in (44 mm); Density: 0.95 lbs/ft³; Thermal Performance: R-Value 5.45/in (RSI 0.96). Applications Designed for vans and campers, ideal for door panels, headliners, instrument panels, van walls. Quality Made from lightweight polyester and polypropylene fibers, Characterized by lightweight and efficient sound absorption, Single side black non-woven fabric plays a role in protecting and fixing fibers. Moisture Resistance Exceptional moisture resistance, no need for additional waterproof layers, resistant to odors. Our Guarantee We give 1 years product quality guarantee for this automotive insulation, during this period you can contact me at any time if you have any problem, I will reply you within 24 hours and solve the problem for you.