SAN’ITAl'.Y XOTKS. KHAKTOt'M 
(;<) 
close, in order to keep out dust. Window oponinf>s in walls not ])rotcctcd hy verandahs should 
ho few and small. 
Hoofs .—All roofs must he thick enough and of a proper material to stop both the heat and 
the light rays. Eoofs of corrugated iron alone, or of boarding covered with some waterproof 
material, are not sufficient protection, hut if the underside of the joisting is wood lined, and an 
Fig. 1 1 
CCAVt 
•*>«&• « « t " 4 5 n«rf€a 
h ' *' * <-1-<-1-•-1 
W. H. McLfas 
Fig. 12 
Figs. 11 and 12.—Designs for Dwelling-houses in the Tropics 
air space left between, the result is more satisfactory, A common form of roof is of “ zibla ” 
(a mixture of stable manure and earth), which is laid on boarding or on straw matting and rojie 
netting. This is quite satisfactory, especially if a wood ceiling lining is added, and the “zihla” 
is protected from the weather by a w'aterproof covering. 
Another common form is of rolled steel joists with brick jack-arching between, and 
covered with a waterproofing material. This appears to be one of the most satisfactory types 
of ii'oofing. 
