Needless repairs can be avoided, and energy savings can be achieved, through installation of windows using methods that incorporate the use of extruded water-resistant foam, bonding tape covering the flanges and fasteners or windows and building wrap covering the bonding tape. This system becomes part of the window, system to improve strength, air and moisture penetration Also eliminating the building wrap bonding tape at the head prevents trapping moisture behind build bonding tape. This system eliminates all voids around the window and frame and becomes part of the structure of the window, etc.