Contact us


Used in conjunction with the full range of standing seam and box profiled roofing system

Our WalkLiner is used in conjunction with the full range of standing seam and box profiled roofing systems to provide a fully walkable working platform in both its solid and perforated formats.

WalkLiner supports the insulation within a warm roof built up system, provides lateral restraint to the top flange of the purlin and in non-perforated format provides the vcl and air barrier when sealed.

Perry Beaches, Birmingham

Profile Description: 32mm x 1020mm

  • Materials Available*: Steel (Fully walkable)
  • Finishes: Plain galv, Polyester (Leathergrain, HPS200 Ultra, Sirius on enquiry).
  • Gauges: 0.70mm
  • Colours: Standard Colours & Special colours (subject to minimum order)
  • Formats: Solid & Perforated Available & straight, curved and crimp curved

Fixing Specification

  • Intermediate 1 Nr SDIBSW into every trough
  • End Laps 2 Nr SDIBSW into every trough
  • Side Laps No requirement for fixings

Walk Liner Sealants

  • End Laps 1 Row of 6×5 butyl – Class A
  • Side Laps SDSeal – 50 x 1mm jointing

VCL & Airtightness

  • Primary VCL: Within our low-humidity non-perforated liner systems the VCL is formed by sealing the WalkLiner as per the above fixing specification.
  • Results of air leakage tests based on a 50Pa test: As per report No. BP 2395/2/IC/99 (available from technical on request)
  • Side laps: < 0.1m3/hr/lm
    End laps: < 0.1m3/hr/lm
  • Non-Fragility
  • Solid & Perforated: Non-Fragile Class B to ACR[M] 001:2011

Perforated Walkliner Acoustic Data

  • Sound Absorption Co-Efficient: NRC – 0.95 to ASTM c 423-01
  • Class A sound absorption to BS EN 11654-1997
    As per report No. C/21441/RO1 (available from technical on request)

For more information download our datasheets

System Building Products Limited

Throughout history, the building industry has taken on a myriad of shapes, styles and textures. Whether in response to emerging technologies, new approaches, anticipation of future trends or a respectful take on the past, architecture is a living reminder of how our urban environment has evolved and continues to evolve year on year. Architecture today needs to deliver on so much, from meeting standards and environmental ratings to maximising value and achieving uniqueness.

At System Buildings Products, we understand this, and by combining our expertise and your project needs, we will deliver the systems and results you expect.