. . . this pattern helps to complete Sheltering Roofs. If you have followed sheltering roof, your roof has living space within it: and it must therefore have windows in it, to bring light into the roof. This pattern is a special kind of Window Place, which completes the Roof Vaults, in these situations.
Problem:
We know from our discussion of SHELTERING ROOFS (117) that the top story of the building should be right inside the roof, surrounded by it.
Background & Research: Not Included on the site—Go read the book!
Solution:
Wherever you have windows in the roof, make dormer windows which are high enough to stand in, and frame them like any other alcoves in the building.
Usage:
Frame them like Alcoves and Window Place with Gradual Stiffening, Columns at the Corners, Box Columns, Perimeter Beams, Wall Membrane, Floor-Ceiling Vaults, Roof Vaults and Frames as Thickened Edges. Put Windows Which Open Wide in them, and make Small Panes . . .
pg. 1081