 鲜花( 3)  鸡蛋( 0)
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shao 发表于 2014-4-4 19:53 & L7 {3 C ?0 V- i8 v1 M" [0 T$ [
外墙应该没有几十尺吧
" N5 d( L5 x, }+ Kyes. say you have unit 33x30 FT for (990SqFt). " k' ]" }; C2 u3 n
outside wall areas/ C7 `' z( ^% w0 f- \
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 F2 |; a& y# }8 Z) u+ cinterior wall area (Party wall and corridor wall)
/ E `' h! }: {5 a. I0.33FT (4" wall) x 63FT = 21SqFt or 0.5 FT x 63 FT=31.5 SqFt.* k R. i5 s# R, T: U9 \9 }
add both together, 50SqFt to over 70SqFt E7 {5 P! U( G j
# `% A/ h. F. b3 M, g3 E8 G" Wfor single house, say 1800SqFt (main floor 24x26=624SqFt + second floor 24x50=1200SqFt)& `, O6 d7 X* P3 n/ u
your exterior wall area will be 0.5x(24+26)x2=50 SqFt for main floor. 0.5x(24+50)x2=74SqFt for second. 6 k) a0 C1 c8 z
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