Image_Case Study_Sharnbrook Passivhaus_8

Sharnbrook Passivhaus

During 2017 Parrott Construction built 13 passivhaus dwellings in a rural location at Sharnbrook, Bedfordshire.

The Project

The scheme, consisted of thirteen two storey dwellings of which four were affordable rent, five shared ownership and four for open market sale.

Client :
Parrott Construction
DP Architecture Ltd
Passivhaus Consultant:
Low Carbon Box
Build System:
TEK Passiv

The Challenge

Parrott Construction involved Kingspan Timber Solutions early on which facilitated full engagement with the design team. Working in conjunction with the Architect and Passivhaus consultant the construction details were drawn up with everyone’s input ensuring an economic and practical set of solutions was constructed.

The external wall included a 38mm service batten, taped air barrier, 142mm TEK wall panel clad externally with 110mm Kooltherm cavity board. The system achieved passivhaus performance with a U value of 0.09 W/m2.K within an overall external wall thickness of only 457mm inclusive of all finishes.
The air testing was carried out per block and in each instance a frame handover test of less than 0.6 ach@50pa was achieved.

The overall scheme was finished on time and to a high standard.
External Sharnbrook Passivhaus Bedfordshire

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