The glass walls of the Frey House II slide open to the patio and swimming pool. The room at the far end of the house is a 300-square-foot guest room, added in 1967.
Although the glass walls face south, the house maintains a comfortable temperature. In the winter, the sun is low and helps heat the house. During the summer when the sun is high, the wide overhang of the alumimum roof helps maintain cooler temperatures. The drapes and reflective Mylar window shades also help insulate the home.
The rock that extends inside the rear of the house maintains a fairly constant temperature. "It is a very livable house," Frey told interviewers for Volume 5.
