Huber Blue OSB flooring and sheathing panels are utilized extensively across residential construction as strong, high-quality flooring and sheathing panels that provide excellent weatherability. Huber Blue, backed by a comprehensive 25-year limited warranty, is available for roof and wall sheathing uses and for sub-flooring in two layer systems. The easy-to-install product is able to be used with the same spans and thickness as plywood building applications.