StressPly
Bituminous Membrane Systems
Multi-layer waterproofing systems for refurbishment and new-build applications
Built around your specification
Garland UK’s StressPly range of bituminous membrane flat roofing systems combines multiple waterproofing layers into a built-up roofing assembly for refurbishment and new build projects.
Available in torch-applied and self-adhesive configurations, these bituminous membrane flat roofing systems are tailored to different installation requirements, roof constructions, and project constraints, giving specifiers the flexibility to match a system precisely to the building.
From standard refurbishment schemes to high-specification waterproofing applications, each membrane system can be selected to align with the technical, operational, and budget requirements of the project, backed by Garland UK’s Single-Point Guarantee for complete accountability across design, materials, and installation.
One guarantee,
total accountability
We take full responsibility for the design, system, and installation workmanship, removing risk and uncertainty for building owners and estates teams.
- Complete coverage
Every element, including design, materials, and installation workmanship, is covered by one consistent, accountable partner - Total ownership
No split warranties or third-party disputes. Garland UK owns the process from start to finish - Proven value
Fully transferable coverage that maintains asset value and confidence across your building’s lifecycle
Why specify StressPly?
A range of built-up membrane systems designed to suit different roof constructions, installation requirements, and project objectives
Multi-layer protection
Waterproofing is achieved through multiple membrane layers working together as a complete roofing assembly.
Installation choice
Available in torch-applied and self-adhesive configurations to suit project requirements.
Specification flexibility
A range of system build-ups allows the waterproofing assembly to be aligned with the building and roof construction.
Refurbishment & new-build
Suitable for both roof renewal and new construction projects across a wide range of sectors.
Choose Your Protection Level
Each bituminous membrane flat roofing system in the StressPly range has been developed to suit a particular set of site conditions, from standard warm-roof refurbishments through to high-specification applications requiring enhanced flexibility in extreme temperatures.
StressPly Signature
A high-specification SBS-modified bituminous membrane system developed for projects requiring enhanced flexibility and resilience in demanding conditions.
- Flexible to temperatures down to -30°C
- High SBS modifier content
StressPly Flex Plus
Multi-layer waterproofing protecting with properties to withstand building and thermal movement, designed for waterproofing longevity.
- Reinforcement to support membrane tensile strength
- Suitable for both warm and inverted roof systems
- Mineralised finish to protect from UV degredation
StressPly Flex
Torch-on bituminous system with tensile and tear strength (1000/800 N/50mm, BS 8747), suited to refurbishment projects.
- Tensile and tear strength for optimum performance
- Suitable for both warm and inverted roof systems
- Torch-on application for reliable waterproofing
StressPly Flex SA
Garland UK’s flame-free modified bitumen system combining self-adhesive technology and hot air welding.
- Self-adhesive compound technology
- Flame-free application
- NFRC Safe2Torch compliant
StressPly Evolution
Elastomeric SBS bitumen membrane with versatile waterproofing performance.
- Thermal, mechanical and ageing characteristics
- Bond strength eliminates potential failure points
Need specification advice?
Your local Garland UK Technical Manager can help assess your roof, develop the appropriate specification, and recommend the right StressPly system for your project.
A ward stays open. A school still teaches on Monday
The right membrane is the one that suits the deck beneath it and the way the building is used while it is being worked on, which is not a question a data sheet can answer. Every Garland UK guarantee also covers consequential loss, up to £200k for damage to the building and its contents and up to a further £200k for business interruption, whatever the length of the guarantee. Start with a Free Roof Survey and your Technical Manager will put the recommendation in writing.
