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Case study describing a wall and window retrofit of a 1940s home in Phoenix AZ that included adding 2 inches of rigid foam and new stucco siding and solar screens as part of a comprehensive retrofit of the concrete block home.

Case study describing a wall and window retrofit of a 1940s kit home in Kalamazoo MI that included adding 1 inch of rigid polyisocyanurate insulation and low-e storm windows while replacing vinyl siding on the home.

Case study describing a wall and window retrofit of a 1950s bungaloo home in Jackson MS that included adding 1 inch of rigid XPS insulation while replacing aluminum siding with vinyl siding and replacing the original windows with triple-pane windows.

Case study describing a wall and window retrofit of a 1970s cedar-sided home in Bellingham WA that included adding 2 inches of cork insulation while replacing the existing cedar siding and replacing the double-pane windows with triple-pane windows.

Case study describing a wall and window retrofit of a 1920s home in Long Island NY that included adding 1 inch of rigid foam insulation over existing stucco and covering with vinyl siding on the home, then adding exterior low-e storm windows to previously upgraded double-pane windows.