This study explores the physical ageing of rubber, traditionally associated with temperature changes, with a focus on room temperature effects, particularly in carbon black-filled rubber. Contrary to previous beliefs, experiments reveal that it takes up to four days for the shear modulus to equilibrate at room temperature. The findings have significant implications for the mechanical behavior of systems containing such rubber components during temperature variations. The paper concentrates on modeling torsional energy flow in filled rubber isolator subjected to a temperature shift at room temperature. The constitutive model incorporates a novel approach considering contributions from free volume and configurational changes to represent the impact of physical ageing on the shear modulus. The resulting torsional energy flow exhibits shifts in levels, peak frequencies and trough frequencies across the audible frequency range, persisting even after temperature stabilization. This highlights the crucial role of physical ageing in the design of vibration isolation systems.