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Protech GM Super - Stirling

Crammond Select Homes, of Bridge of Allan, recently installed the A. Proctor Group’s Protech GM Super high performance gas protection system on their redevelopment of the former Chalmers Church site, also in Bridge Of Allan. This project involves the conversion of the existing church into 8 apartments, along with 5 new build apartments.

Working closely with the A. Proctor Group’s Regional Sales Manager, David Forsyth, Crammond Select Homes chose to specify the Protech GM Super geomembrane. GM Super is a high performance, proprietary, reinforced gas barrier, that incorporates a 12 micron aluminium foil layer, for maximum protection against the ingress of ground gasses.

Designed with the latest standards and guidance in mind, the heavy duty reinforcing grid ensures the membrane meets the need to survive construction, reducing the impact of tears and punctures on the membranes long term performance.

This, combined with the A. Proctor Group’s expert design and specification advice, allowed Crammond Select Homes to easily install a robust and compliant design for the ground gas protection measures, and to have confidence that the design performance would be achieved in practice. Recognising the superior range of membranes offered by the A. Proctor Group, Bobby Halliday Architects in Bridge of Allan also specified Roofshield vapour and air permeable underlay for their roof constructions.

Ground works project in Stirling

Protech GM Super

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For any building to have an energy efficient, healthy, moisture free building envelope there is a clear need to manage the balance of Heat, Air and Moisture movement (HAMM) throughout the building’s life cycle from design, construction, completion and use.


The Haugh

The A.Proctor Group operates out of The Haugh in Blairgowrie, which has belonged to the family since the early 1900’s and now acts as the Head Office for the Administration departments and Customer Services.




Check our Building on Contaminated Land: VOC Barrier Membranes Webinar Page. Here you will find video replay, downloadable video, transcript & downloadable PDF transcript of our Webinar held at our head offices on the 3rd October 2017, hosted by our Managing Director, Keira Proctor, and presented by Aubrey Machin.





ground gas accessories

Our new Ground Gas Protection Accessories Brochure is now available. Download it for complete information on our range of Protech and Provoid Ground Gas accessories.



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  01250 872 261

  01250 872 727


  A. Proctor Group Ltd., The Haugh, Blairgowrie, PH10 7ER





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