LP® TechShield® Radiant Barrier Sheathing helps block radiant heat from entering the attic. The result: LP TechShield can reduce monthly air conditioning costs up to 17%. It installs just like regular roof sheathing, with no additional labor costs. And unlike other radiant barriers, LP TechShield features VaporVents™ technology, which helps the panel dry quickly if it’s exposed to moisture during the construction process. We’ve been making LP TechShield for more than a decade. It was the first radiant barrier panel on the market and is still the brand that builders use and prefer the most.