We invented the field of Engineered Insulated Log Siding (EILS) in 1992, and received our first U.S. patent in 1993. Our EILS hybrid log technology laminates kiln-dried dimensional lumber into large-diameter log profiles, and then injects high R-value insulating foam into the core. Our COZEE LOG (EILS) lets you enjoy the authenticity and high-impact strength of solid logs with - more energy efficiency, less maintenance, less weight, more sound attenuation and lower installation costs. Over the course of our more than 165 North American EILS installations, we developed a design philosophy called Integrated Massive Scale or IMS. IMS is defined as integrating all exterior building components into the most massive scale possible - with perfect visual balance. IMS is our time-tested method that maximizes your rustic curb appeal and resale value. And now, with three patents in the EILS field and 29 years of focused experience, there is no one in the world who better understands how to combine IMS design concepts with EILS technology, attached to Structural Insulated Panel (SIP) wall systems.