Seamless Pitch-to-Flat Conversion for School

Garland UK-approved contractor Accurate Flat Roofing worked closely with Synergy Construction to implement a phased approach to the pitch to a flat roofing project, ensuring the school could remain fully operational throughout the project. This careful planning allowed each roofing section to be addressed systematically while mitigating water ingress during the works. 

The existing chipboard and woodwool deck was overlaid with 18mm marine-grade ply. The overlay method in Garland’s design specification ensured the new plywood decking was applied through the chipboard and into the joist, enabling the approved contractor, Accurate Roofing, to install the system quickly while keeping the building dry from the elements. 

By retaining the existing structure rather than removing it entirely, this solution minimises waste and disruption. A self-adhesive vapour control layer was then added to reduce fire risks—a crucial safety measure given the composition of the original deck materials. To further enhance the roof’s performance, a tapered insulation system was installed to improve energy efficiency, followed by a base sheet to bond with the final layer. 

The final layer consisted of Garland’s BBA-certified StressPly Flex Plus torch-on cap sheet, renowned for its exceptional durability and waterproofing capabilities. This system was backed by a 25-year Single-Point Guarantee, providing long-term assurance for the school. Additionally, the outdated Georgian-wired rooflights were replaced with modern triple-skinned polycarbonate units, eliminating safety hazards and improving the quality of natural light within the building.

Throughout the project, Daniel Sandell visited the site twice weekly to oversee the installation process, ensuring adherence to Garland UK’s high standards. Regular progress updates were provided to all stakeholders, including school business manager Jon Whitehouse and Synergy Construction, via Garland UK’s RAMP system, fostering transparency and collaboration.

The pitch-to-flat roof transformation delivered remarkable improvements in thermal efficiency for Parmiter’s School, achieving a U-value of 0.18, the regulatory standard. This upgrade significantly enhanced the school’s energy efficiency, reducing operational costs and environmental impact.

Jon Whitehouse praised the project, stating,

“The transformation of our school’s roof has been remarkable. Garland UK’s thoughtful technical approach and smooth project management tackled our long-standing waterproofing and energy efficiency issues while keeping disruptions to our operations minimal. Their focus on safety, sustainability, and long-term performance shines through in every detail of the project. With their tailored solutions and dedicated support, Garland has significantly enhanced the safety and environmental standards of our facility, delivering a durable and future-ready roofing system.”

In line with the school’s sustainability goals, Garland UK’s high-performance tapered waterproofing design avoided over 70 tonnes of waste being sent to landfill by eliminating the need for complete roof material removal. 

Today, Parmiter’s School staff and students benefit from a robust, low-maintenance roofing system designed for long-term performance. Backed by Garland’s 25-year Single-Point Guarantee and PartnerCare service, the school can move forward with confidence, knowing their roofing system will provide safety, durability, and efficiency for years to come.