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shao 发表于 2014-4-4 19:53 ' K: `6 ]5 s, [( R8 v: t5 Q
外墙应该没有几十尺吧
8 D0 c; a0 Y9 W( N3 }7 O" Byes. say you have unit 33x30 FT for (990SqFt).
. p% z, y0 c, b Houtside wall areas( @" |) M8 C+ C7 Z; d: U+ t, k
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.
( ~& ^' h7 x N3 B: k4 r, l- iinterior wall area (Party wall and corridor wall) ) C7 s3 }5 u) X& ~7 ]! b
0.33FT (4" wall) x 63FT = 21SqFt or 0.5 FT x 63 FT=31.5 SqFt.
) I# M% z5 l" D# padd both together, 50SqFt to over 70SqFt
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for single house, say 1800SqFt (main floor 24x26=624SqFt + second floor 24x50=1200SqFt); x, e: K' H, o
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 L5 y2 v) ?) U5 ?8 M4 d! v
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