Advanced Framing: Insulated Headers Description Guide describing how to insulate headers over doors and windows to reduce heat loss and heat gain through solid wood framing.
Advanced Framing: Minimal Framing at Doors and Windows Description Guide describing how to minimize framing around doors and windows to reduce heat loss.
Install Top Plates or Blocking at the Top of Walls Adjoining Unconditioned Spaces Description Guide describing how to correctly air seal a wall with missing top plates or open wall cavities.
Window Sash Replacement Description Guide describing how to replace a window sash in an existing home.
Window Sash Retrofit Description Guide describing how to modify an existing window sash for high-efficient windows.