 鲜花( 3)  鸡蛋( 0)
|
shao 发表于 2014-4-4 19:53 7 M' k% W) M; y' u. |; x+ y+ a; G
外墙应该没有几十尺吧
+ C, \* K6 U+ m# ^5 N" ]yes. say you have unit 33x30 FT for (990SqFt). 4 e3 M+ ~: n; |& s
outside wall areas
+ Y* r3 J- _( C N+ A: d33+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.- u7 _; u$ I2 L: A8 b. W6 \
interior wall area (Party wall and corridor wall)
# f: {3 m0 W# `, P8 u! N$ O$ {0.33FT (4" wall) x 63FT = 21SqFt or 0.5 FT x 63 FT=31.5 SqFt.- q3 u2 p9 A* [1 p9 l
add both together, 50SqFt to over 70SqFt, c) ^9 O/ A0 d- L9 ?' O
D" F+ ]* U" b0 Z% }) j' Ffor single house, say 1800SqFt (main floor 24x26=624SqFt + second floor 24x50=1200SqFt)
& p% {5 V. ?5 `) N3 M5 Hyour exterior wall area will be 0.5x(24+26)x2=50 SqFt for main floor. 0.5x(24+50)x2=74SqFt for second.
# O w* ?$ F; `1 G5 ^: e6 s/ \
: s: A, p5 U) k: z% e# t |
|