Lime Tree Lodge

H+H products were selected for this project due to the aircrete’s high thermal performance which helps meet Passivhaus standards.

Passivhaus is achieved by the application of high levels of insulation,avoidance of thermal bridging within the structure, low levels of air leakage all of which are qualities addressed with the use of the H+H range of Celcon Blocks.

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.

Product Used:
  • Celcon Block Standard Grade 440 x 215 x 140 mm
  • Passivhaus Standard