56
EXTERNAL ENVELOPE
The Highlands’ fi rst Passivhaus school features offsite Wraptite®
installation I
n the Highlands, north of Inverness, students aged from 3 to 18 are enjoying the health and comfort benefi ts of the
region’s fi rst Passivhaus-standard school. The new £72 million Tain Campus is now
home to Tain Royal Academy, Tain Primary School and St Duthus School. It has been constructed to the Passivhaus standard to reduce energy consumption and create a healthy learning environment. The external wall specifi cation included two Proctor Group membranes: the Wraptite® external air barrier system to the outside of the structure, and Procheck®
A2 internally.
Veitchi Interiors installed both membranes as part of their work package. They played a proactive role in determining how the project was delivered. Thanks to having their own Metframe panel factory, they proposed installing Wraptite in the factory. Following discussions
pre-start meeting, both Highland Council (client) and Kier (main contractor) were happy to explore it.
In such a northerly location, and also on the coast, weather was inevitably a factor. Removing the labour of the Wraptite installation meant the only work then needed on site was the application of tapes where required to fully seal the system against the wind and rain.
Alongside more formal Passivhaus training, Veitchi Interiors received an array of technical support from Proctor Group. Regional Sales Manager Linda Kay delivered a CPD training session on the products, followed by multiple site visits.
at the project’s
Wraptite is both airtight and highly vapour permeable, helping to achieve high standards of airtightness without increasing condensation risk in the structure. Its self- adhered installation is designed to ensure a consistent airtight external seal. Procheck A2 is a vapour and airtight membrane that is also rated A2-s1,d0 when classifi ed to BS EN 13501-1. It is therefore considered non-combustible,
with no
contribution to fi re. 01250 872 261
proctorgroup.com/products/wraptite
WWW.ARCHITECTSDATAFILE.CO.UK
ADF SEPTEMBER 2026
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