A wall is $50$ by $6$ m $,$ which includes $40\%$ double$-$glazing glass windows with a $10$ mm airspace $($Aluminum frame without thermal break$).$ The wall proper consists of one layer of $6$ inch thick face brick backed by $300$ mm of sand and gravel or stone aggregate concrete with $15$ mm of gypsum plaster on the inside. For indoor and outdoor design temperatures of $20C$ and $-10C,$ respectively, determine the heat loss through this wall, $kW.$ The $R$ values are give below.

$\backslash$table$[[$Wall$,R(m^2\frac{K}{W})$