ThermalBuck High Performance Window Bucks Window installation with exterior insulation is a challenge. Solve the problem with ThermalBuck™. ThermalBuck was designed to solve multiple problems when installing windows with continuous insulation and/or rainscreens. It extends the mounting point of windows & doors to create a flush plane for cladding. It also insulates the rough opening, limiting a common thermal bridge in the building envelope. Simple to install and easier to flash than a traditional wood buck, ThermalBuck is a true continuous insulation solution. A high performance window installation solution for exterior rigid insulation A verified Passive House installation detail Supports the weight of the window, and handles shear & wind loads. Dimensionally stable and strong, ThermalBuck helps to maintain the integrity of the window installation. Simplifies flashing, and adds an additional air & water barrier at the rough opening. Available in depths of 1.0” to 4”, to match the exterior insulation and/or rainscreen depth. R-value 4.4 per inch btn-see-info ThermalBuck-Installation-1 ThermalBuck-Installation-2 ThermalBuck-Profiles With the rapid adoption of advanced energy codes, and the increasing demand by consumers for energy-efficient homes, a growing number of high-performance architects and builders are using exterior insulation on new homes.