Joao Alvaro Rocha built some beautiful homes in which white volumes play with generous use of wooden window frames
In this case the most importants woodwork consist of two sliding windows and sliding shutter outside also.
Outdoor window shutters get darkening and total intrusion security and mostly are filled with thermal insulating materials that guarantee comfort night and help save energy.
More info in Joao Álvaro Rocha's website
Luis Ferreira AlvesTC cuadernos 102-103From Joao Álvaro Rocha's website