 鲜花( 3)  鸡蛋( 0)
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shao 发表于 2014-4-4 19:53 
, ^" `* m1 ^5 u4 o外墙应该没有几十尺吧 / {, p- `) |- z
yes. say you have unit 33x30 FT for (990SqFt). ! M- H) m$ U a) O
outside wall areas1 T s1 u7 I7 J# q" w7 F7 M5 x
33+30 FT outside wall could be anywhere 0.5FT (6" exterior wall width)x63 FT=31.5SqFt or 0.67 FT (sometimes lower floor has 8" exterior wall) x 63FT= 42.21SqFt.3 Q2 \$ t$ e/ o
interior wall area (Party wall and corridor wall) 7 k5 g" u4 x" c% \: C
0.33FT (4" wall) x 63FT = 21SqFt or 0.5 FT x 63 FT=31.5 SqFt.$ z. Z3 U! ^. D0 ?2 P1 p
add both together, 50SqFt to over 70SqFt# V$ K- ?' D$ S- c8 K, |
. d. h* ?5 n8 k9 {0 @for single house, say 1800SqFt (main floor 24x26=624SqFt + second floor 24x50=1200SqFt)
: c1 y7 X, ?( ]" Y3 w. B: g" Uyour exterior wall area will be 0.5x(24+26)x2=50 SqFt for main floor. 0.5x(24+50)x2=74SqFt for second.
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