Sheathing and White Finish Insulation bodyTHERMAX™ Sheathing and THERMAX™ White Finish Insulation, from Dow Building Solutions, is designed specifically for in the interior of basement and crawl space walls. THERMAX Insulation products are energy-efficient insulations with an R-value of 6.5 at 1-inch. Additional product benefits include: easy, quick and clean to install for both semi-finished and finished insulated walls, it can be left exposed in basement living areas and facer is durable and washable. For more information, visit