 鲜花( 3)  鸡蛋( 0)
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shao 发表于 2014-4-4 19:53 5 w4 d# M T$ \ S
外墙应该没有几十尺吧
' e4 v1 |: g! d/ c' N" V, dyes. say you have unit 33x30 FT for (990SqFt). ' d+ q& S' d8 o9 ^
outside wall areas, P) k0 T6 |9 i$ D: 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.. q6 u! A+ x' \6 X$ C
interior wall area (Party wall and corridor wall) 5 ]: ~, u" Z, U* g5 Q
0.33FT (4" wall) x 63FT = 21SqFt or 0.5 FT x 63 FT=31.5 SqFt.
( D" g! D3 B( _" `& nadd both together, 50SqFt to over 70SqFt
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7 b4 D4 I& N2 J. t3 c4 M( \" m. n. {for single house, say 1800SqFt (main floor 24x26=624SqFt + second floor 24x50=1200SqFt)* t3 o" ^" W2 A! D; P
your 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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