--
H




 (b)


W : HOUSE WIDTH

L : HOUSE LENGTH

H : HOUSE HEIGHT

R RAFTER
 LENGTH

G  GABLE HEIGHT

A : UPPER WALL
 HEIGHT

B : LOWER WALL
 HEIGHT


FIGURE 2: (a) CURVED GREENHOUSE USING DIFFERENT MATERIALS
 FOR THE LOWER AND UPPER WALLS.

 (b) GABLE GREENHOUSE USING DIFFERENT MATERIALS
 FOR THE LOWER AND UPPER WALLS.