Barony Campus

Bauder Thermofol PVC single ply waterproofing system with


Barony Campus is a new build project situated in Cumnock, Scotland. The campus will incorporate a range of primary schools, learning centres and academies within the area, and is the biggest capital project undertaken by East Ayrshire Council.

Bauder Building Board


Barony Campus


Cumnock, Scotland

Project type:

New build

Roof size:



Sheppard Robson

Main contractor:

Morrison Construction

Approved contractors:

EJ Parker
W.G. Walker & Co                             
Q9 Cladding Solutions

The specification

The client required flat roof waterproofing as well as a sustainable energy source in the form of solar PV panels. Due to Part L regulations there was a requirement for a large PV array. Main contractors, Morrison Construction, bought into the risk-averse, zero-ballast, zero-penetration solution that the BauderSOLAR system offers. As Morrison Construction had not yet used this system, Bauder conducted a technical seminar to share the benefits of using BauderSOLAR in conjunction with a Bauder single ply membrane and to discuss the acoustic considerations for a building of this nature.

The technical support and advantages of a single-source supplier resulted in a specification of a 176.80kWp BauderSOLAR PV system generating an estimated 157,800kWh per annum. The system proposed by Bauder ensured the solution was compliant in relation to the SAP calculations that had been carried out.

Products applied

This single ply membrane is lightweight and has a high-grade virgin polymer formulation. The PVC formulation ensures it is resistant to chemicals and micro-organism attack making it well suited to receive a green roof.

BauderPIR M 60
This PIR insulation has aluminium foil facing on both sides and rebated edges to remove a thermal bridge. The matt black facing on both sides enables the board to be installed either way up. 

The lightweight, integrated system ensures that the integrity of the roof is upheld throughout the installation of the PV array. The panels are designed to create a 12º angle with modules delivering up to 455w per panel.

Project challenges

The client had limited space for the storage of 544 solar panels and they could not be stored on the single ply roof. To overcome this, deliveries of the panels were coordinated with the roofing contractors finishing sections so that the panels could be raised, installed and welded as they arrived to site, mitigating the need for storage. Due to the reduced labour time of BauderSOLAR compared to ballasted systems, the site team managed to install the system quickly and efficiently, making back time lost due to weather delays and enabling the deadline to be met.

The BauderSOLAR system is the lightest system on the market at 11.5kg/sqm. The system is also warrantied in combination with the roof membrane to ensure peace of mind is given to the client if any leaks or damage were to occur.

System installed

Bauder Thermofol PVC single ply system



1.5mm polyvinyl chloride membrane (PVC) reinforced with a pre-coated polyester cross-weaved matting for mechanically fixed installations. 

2 BauderPIR M 60

This efficient tissue-faced flatboard insulation has been specially developed for use within Bauder single ply systems. 

3 BauderSYN DB-PE 100

A blue, polyethylene air and vapour control layer. The product is installed by loose laying and suitable for Thermofol mechanically fastened and ballasted single ply systems.

System installed

BauderSOLAR PV F System

This system provides a risk-free, zero penetration installation with a single source for integrated design of waterproofing and PV. Depending on the module selected, this system can weigh just 9-12.5kg/sqm, making it suitable for single ply applications. 



Jordan from EJ Parker:
“Our site team found the system very easy and quick to install. However, we found some challenges getting started due to the bad weather but once we finally began it was very straight-forward and fast to install. The technical help received from Chris and the team from design through to project completion was second to none.”