Roof underlay specification for retrofit projects

All roof coverings and underlays need to be replaced at some point during a building’s useful life. When that time comes, how can roof membranes help existing buildings to meet current performance requirements and be resilient for the future? Sue Menmuir, Technical Advisor at the A. Proctor Group looks at some of the challenges of […]
Marking a year of Proctor Air® success

The A. Proctor Group has been at the forefront of pitched roof membrane technology for more than a quarter of a century. Drawing on those years of experience, plus feedback from designers, specifiers and installers alike, 2024 saw us introduce a brand-new underlay product: Proctor Air®. The product was subsequently awarded a BBA certificate in […]
How long can I leave a pitched roof membrane exposed?

It’s one of the most common questions put to the A.Proctor Group technical team: the pitched roof underlay has been installed but the project is delayed, or the roof covering is on an extended lead time. How long can the membrane be left exposed? Sue Menmuir, Technical Advisor, explains what you need to know and […]
Air and vapour permeability in an historic roof

At roof level, the restoration efforts include dismantling and rebuilding 30 of the 34 chimneys, and replacing 140,000 roof tiles. Removing the roof finish has afforded the opportunity to install a new pitched roof underlay. The project architects specified Proctor Air, with Mac Roofing & Contracting Ltd carrying out installation. As an historic building, the […]
Proctor Air® provides peace of mind for apartment residentsduring essential reroofing works

A significant challenge when working on the roof of any existing, occupied building is protecting the people inside the building without the full roof system in place. That challenge is multiplied when the building in question is large and work has to be carried out in sections over a longer period of time.At Hatchemeadow apartments […]
How roof underlay specification can helpmake a retrofit project a success

All roof coverings and underlays need to be replaced at some point during a building’s useful life. When that time comes, how can the next generation of roof membranes help existing buildings to meet current performance requirements and be resilient for the future? Pamela Howat, Senior Technical Advisor at A. Proctor Group looks at some […]