The invention relates to a method for machining a workpiece, in particular for a profiled leaf element of a window leaf frame, wherein the workpiece is initially machined using a first machining device in order to create a machined first surface to which an adhesive tape is to be applied, and the workpiece is further machined once the adhesive tape has been applied.

According to some embodiments, a multi-panel door system includes a fixed panel and an active panel. Both panels are secured to the astragal of the door frame by securement members driven into and through hinges connected to the active panel, through the astragal, and into the fixed panel. The securement members are driven through a middle portion of the astragal stem in order to align the fixed and active panels in a recessed position with respect to the door frame. The fixed panel and the active panel are coplanar. Hinge support plates are placed between the hinges and the astragal and communicate forces transmitted through the securement members into deeper portions of the astragal.

According to some embodiments, a multi-panel door system includes a fixed panel and an active panel. Both panels are secured to the astragal of the door frame by securement members driven into and through hinges connected to the active panel, through the astragal, and into the fixed panel. The securement members are driven through a middle portion of the astragal stem in order to align the fixed and active panels in a recessed position with respect to the door frame. The fixed panel and the active panel are coplanar. Hinge support plates are placed between the hinges and the astragal and communicate forces transmitted through the securement members into deeper portions of the astragal.

The fenestration structures include external frame segments facing the interior and exterior surfaces of a building wall, and an internal frame segment sandwiched between the external frame segments. The external frame segments are made from a relatively hard, dense and/or resilient material, such as hard wood, while the internal frame segment is made from paulownia which is a moisture-resistant, dimensionally stable thermal barrier material. The external frame segments therefore provide durable and attractive exterior and interior surfaces of the fenestration frame, while the internal paulownia segment provides superior resistance to thermal transfer across the frame, while also remaining dimensionally stable across a variety of moisture and temperature levels. Internal paulownia segments may be positioned around the entire periphery of the fenestration frame to create a comprehensive thermal barrier.

The fenestration structures include external frame segments facing the interior and exterior surfaces of a building wall, and an internal frame segment sandwiched between the external frame segments. The external frame segments are made from a relatively hard, dense and/or resilient material, such as hard wood, while the internal frame segment is made from paulownia which is a moisture-resistant, dimensionally stable thermal barrier material. The external frame segments therefore provide durable and attractive exterior and interior surfaces of the fenestration frame, while the internal paulownia segment provides superior resistance to thermal transfer across the frame, while also remaining dimensionally stable across a variety of moisture and temperature levels. Internal paulownia segments may be positioned around the entire periphery of the fenestration frame to create a comprehensive thermal barrier.

Disclosed is a wood frame using a water soluble adhesive and a manufacturing method thereof. The wood frame is manufactured by coating a metal frame with a wood-plastic composite after application of the water soluble adhesive to the metal frame, and may thus have internal rigidity of metal and excellent external flexibility, elasticity, water resistance and corrosion resistance, have an eco-friendly texture like natural wood and prevent deformation due to thermal expansion.

Improved two pieces window formed from a micro-laminated wood frame and several glass sheets with a built-in air chamber and that is constituted by a frame made of micro-laminated woods, glued together with strong adhesive and a closing sheet constituted, from the outside to the inside, by a block of two laminated glass sheets and a sheet of thick tempered glass of a larger size, and separated by a vacuum chamber.

Improved two pieces window formed from a micro-laminated wood frame and several glass sheets with a built-in air chamber and that is constituted by a frame made of micro-laminated woods, glued together with strong adhesive and a closing sheet constituted, from the outside to the inside, by a block of two laminated glass sheets and a sheet of thick tempered glass of a larger size, and separated by a vacuum chamber.

According to some embodiments, a multi-panel door system includes a fixed panel and an active panel. Both panels are secured to the astragal of the door frame by securement members driven into and through hinges connected to the active panel, through the astragal, and into the fixed panel. The securement members are driven through a middle portion of the astragal stem in order to align the fixed and active panels in a recessed position with respect to the door frame. The fixed panel and the active panel are coplanar. Hinge support plates are placed between the hinges and the astragal and communicate forces transmitted through the securement members into deeper portions of the astragal.

According to some embodiments, a multi-panel door system includes a fixed panel and an active panel. Both panels are secured to the astragal of the door frame by securement members driven into and through hinges connected to the active panel, through the astragal, and into the fixed panel. The securement members are driven through a middle portion of the astragal stem in order to align the fixed and active panels in a recessed position with respect to the door frame. The fixed panel and the active panel are coplanar. Hinge support plates are placed between the hinges and the astragal and communicate forces transmitted through the securement members into deeper portions of the astragal.