Linn Products Ltd

Bauder Thermofol PVC single ply waterproofing system with BauderSOLAR


The roof area of the building was badly damaged by heavy storms, with all existing ballasted solar panels lifting off the single ply roof and destroyed beyond repair. The client needed the remedial work completed to fixed deadlines in order to comply with insurance requirements, and wanted to optimise the roof by replacing the pre-existing photovoltaic (PV) array with a solar solution that would deliver superior energy generation.

Bauder Building Board

Project: Linn Products Ltd
Location: Glasgow
Project type: Refurbishment 
Roof size: 2,500m2
Architect: Ramsay McMichael Consulting
Approved contractor: W. G. Walker & Co Ltd

The specification

Due to the building’s exposed location, wind uplift calculations were performed prior to work commencing, making sure the new roof could resist extreme weather conditions. Bauder’s quality single ply Thermofol PVC system, was specified because it is robust. The PV array consisted of 166 modules, enabling the client to generate at least 38.67 Megawatt Hours of solar power each year.

Project challenges

The office also had to remain operational throughout the works, creating logistical challenges. However, the simplicity of the installation process meant that the entire PV array could be fitted in just two days, ensuring the refurbishment work adhered to the agreed deadlines.

System installed

Bauder Thermofol


1 Bauder Thermofol U20 FR 2.0mm reinforced PVC membrane
2 BauderPIR M An efficient PIR flatboard insulation with aluminium foil facing on both sides and rebated edges to remove a thermal bridge.
3 BauderTEC KSD foil A technically advanced self-adhesive elastomeric bitumen air and vapour control layer with an aluminium foil facing for vapour impermeability.


Project Specifier - Ramsay McMichael Consulting:
“Bauder provided high levels of technical assistance throughout and delivered to the client a comprehensive waterproofing and PV solution of the highest quality. All works were completed on time and to budget, successfully transforming the badly damaged roof area into an aesthetically pleasing benchmark for roof sustainability.”