BU$2120-$ Building Codes & Services

Term Project Part A

For the term project, you are required to determine the $R_{SI}$ value of the exterior walls and ceiling for the below structure assemblies including windows. You are then required to determine the heat loss through the structure. The outdoor temperature is $-5C(23F)$ while the indoor temperature is $20C(68F).$ To calculate the $Q$ value, $R_{SI}$ value $($Metric$)$ needs to be converted to $R$ values $($Imperial$).$

The structure is $26$ ft wide and $42$ ft in length with a floor to ceiling height being $10$ ft $.$ The house axis is North$-$South with the North facing wall having no windows, the South facing wall has $5\%$ of its area as glass while the longer East and West facing walls have a glass area of $8\%$ each. The glass has a $U$ value of $1\mathrm{.}2.($Remember from the notes, that $U=\frac{1}{R}).$

The walls are composed as indicted below with the studs at $610$ mm spacing.