A cold-storage room has a double-layered wall. The inner layer is $10$ $\mathrm{cm}$ thick, made of fiber insulation board $(\text{k} = 0.048 \text{W m}^{-1} \text{K}^{-1})$, and the outer layer is $15$ $\mathrm{cm}$ thick, made of concrete $(\text{k} = 0.762 \text{W m}^{-1} \text{K}^{-1})$. The surface temperature of the wall inside the cold room is $260$ $\text{K}$ and the ambient temperature outside is $300$ $\text{K}$. The steady state heat flux into the cold room is $\_\_\_\_\_\_\_\_$ $\text{W/m}^{2}$. (Round off to two decimal places)