Welcome to Utility Improvements Reduce energy costs during the summer and winter with Temper Shield technology designed by NASA. Save up to 50% on your utility bills! How does it work? Temper Shield is a space age reflective material. Unlike mass insulation which slows down the heat transfer, Temper Shield reflects heat. To stop radiant heat, you must reflect it with a reflective barrier like Temper Shield. When you use Temper Shield you get the following special advantages: Reduce Energy Costs Keeps Buildings Cooler in Summer, Warmer in Winter Clean and Safe Eliminates Vapor Problems Increased Comfort