Kingflex Insulation sheet roll 13mm thickness is a flexible, closed-cell elastomeric sheet insulation product used to conserve energy and prevent condensation on large pipes, ducts (covers), vessels, tanks and equipment. The Closed cell structure of Kingflex Insulation sheet roll 13mm thickness creates exceptional thermal properties (k-value of 0.245 at 75°F and wvt of 0.03 perm-in) that protect against moisture penetration and heat loss or gain within a -297°F to +220°F temperature range. Kingflex Insulation Sheet Roll 13mm thickness is available with 1m,1.2m and 1.5m width and thickness from 6mm to 30mm. Kingflex Insulation Sheet Roll 13mm thickness is non-porous, non-fibrous and resists mold, fungal and bacterial growth. An easy-to-clean and uniquely tough protective skin on both sides provides a better surface to resist moisture and dirt. The double-sided skin can be used with either side facing away from the applied surface, resulting in less waste if one side becomes damaged.1.Good Thermal Insulation Property Suitable apparent density and stable closed cell structure create the lowest and the most stable thermal conductivity. 2.Excellent Water Vapor Permeability Perfect closed cell structure brings low water absorption and high moisture resistance factor ų. ų value fully promote up to 10000 in the industry-leading. 3.Safety Passed test of BS 476 part 6 part 7 (Class 0). It has achieved the highest fire certification of BS standard. It can better control balance of the oxygen index and smoke density with foaming chemical reaction fully. 4.Easy Installation Kingflex product has high tear strength. It can prevent surface damage. Meanwhile, compare with the high density material, Kingflex is more flexible, and easier to install. The joint is not easy to rebound and gap. 5. Environment Friendly How to calculate the thickness according to the temperature