Bituminous Membranes
StressPly Flex
Reinforced SBS-modified bituminous membrane system designed for durable waterproofing across refurbishment and new-build projects. StressPly Flex delivers reliable waterproofing protection with high tensile and tear strength, suitable for both warm and cold roof applications.
High tensile & tear strength
1000/800 N/50mm
BS 8747 · high tensile
Reliable
waterproofing
Watertight at 100 kPa
EN 1928
Fire
performance
BROOF(t4) · CEN/TS 1187 Test 4
EN 13501-5
Low-temperature flexibility
−25°C
EN 1109
Durable, long-term performance
BBA
durability certified
Why Choose StressPly Flex?
High Tensile Strength
1000N/50mm tensile strength delivers exceptional tear resistance and puncture protection.
Refurbishment Specialist
Proven track record across thousands of UK refurbishment projects over decades.
Application Versatility
Suitable for warm and inverted roof specifications with reliable performance.
Aesthetic Choice
Available in charcoal and brown slate finishes to match building aesthetics.
System Components
Multi-layer built-up membrane system combining high-strength protection with proven refurbishment performance.
StressPly Flex
Mineral Cap Sheet
4.6mm bituminous slate finished cap sheet providing longitudinal tensile strength of 1000N/50mm. The mineral slate finish offers UV protection and weather resistance, with charcoal and brown colour options to suit building aesthetics. Composite reinforcement ensures exceptional tear strength and durability across demanding refurbishment applications.
Torch Flex Ultra-Vent
Reinforced Underlayment
High-performance torch-on base sheet with low-melt strips that allow trapped vapour to disperse throughout the system, preventing blistering and ensuring system longevity.
Torch Flex Vapour Barrier
Air and Vapour Control Layer (AVCL)
SBS modified metal-lined vapour control layer preventing water vapour infiltration that can cause condensation damage and system failure.
Quick Reference
| Layer | Tensile strength - L/T (N/5cm) | Thickness (mm) | Low Temp. Flex (°C) | Length (m) | Width (m) |
|---|---|---|---|---|---|
| StressPly Flex | 1000/800 | 4.6 | -25 | 7.5 | 1.0 |
| Torch Flex Ultra Vent | 900/700 | 3.5 | -20 | 8 | 1.0 |
| Torch Flex Vapour Barrier | 1400/1400 | 3.0 | -20 | 10 | 1.0 |
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.
Read about our
systems in action.
Discover how we’ve transformed buildings across every sector, delivering lasting protection and peace of mind to our clients.
