 鲜花( 3)  鸡蛋( 0)
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shao 发表于 2014-4-4 19:53 7 H, W) X/ i k$ ?
外墙应该没有几十尺吧
+ r: j: d( v1 K2 Ayes. say you have unit 33x30 FT for (990SqFt).
2 |2 G: F, f8 k2 Qoutside wall areas
* A- V6 v$ Q' J% }8 p7 l33+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.+ s; N- p% `+ ]; J. B& C k0 E
interior wall area (Party wall and corridor wall) 7 N2 j2 ~/ n8 J! _1 e ~
0.33FT (4" wall) x 63FT = 21SqFt or 0.5 FT x 63 FT=31.5 SqFt.+ Q4 G! c8 E8 j# Z
add both together, 50SqFt to over 70SqFt
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for single house, say 1800SqFt (main floor 24x26=624SqFt + second floor 24x50=1200SqFt)! B8 c# |3 |4 `4 z. Q3 M: X. N0 F
your exterior wall area will be 0.5x(24+26)x2=50 SqFt for main floor. 0.5x(24+50)x2=74SqFt for second. ! A1 N7 i) M. m, O) A
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