Contractors Grocott and Murfit designed and built a single bungalow in Norfolk, designed by architects Parson + Whittley to Passivhaus standards.

This was the first Passivhaus project for the team at Grocott and Murfit who specified H+H’s Celcon Block Standard Grade for the internal leaf and external leaf to the timber boarded elevations on the structure. Having looked at other alternatives, to meet the stringent Passivhaus standards, the contractors opted for H+H products due to their delivery time, speed of construction, stability and thermal mass.  

Faced with both brick and timber the bungalow has an external U-value of 0.096 W/m2K for the timber faced walls and 0.098W/m2K for the brick faced walls.  H+H’s Celcon Block Standard Grade is a key contributor to achieving these results with a thermal conductivity of 0.15W/m2K.