Langley Waterproofing - second to none waterproofing


Langley TS-15 Built-Up-Roofing System (Single Layer, Torch Applied Installation)

The TS-15 system, part of the Langley Parafor range, comprises of a singley layer overlay of Thermosolo GS cap sheet which is a premium quality, torch applied, semi-adhered, single layer high performance SBS elastomeric membrane for the refurbishment of existing flat roofs*.  Thermosolo GS membrane has dark grey granule surface and is adhered by heat activation (torching) of thermofusable bitumen strips. This system carries and independently insured guarantee for 15 years for both materials and workmanship.

When to Specify

This system is for refurbishment projects; suitable for overlaying mastic asphalt and BUR felt.


(1) Thermosolo GS Cap Sheet, 5mm thick (4mm at selvedge), 6.46kg/m².

(2) Existing Roof / Waterproofing System.

*Subject to suitability and preparation of substrate.

Contact Langley Technical Department for further guidance.


Robust, yet flexible roof covering, 5mm thick, with non-slip slate granule surface provides ample durability and puncture resistance for maintenance foot traffic.  Heavy duty 180 g/m² non-woven polyester composite reinforcement provides robust watertight layer.  


Thermosolo GS is covered by MOAT 31 (Reinforced Homogenous coverings of Elastomeric Bitumen).  Thermosolo GS achieves a ‘resistance to damage’ rating of R4 (the highest level of acceptance) under MOAT 31.


Long term solution, life expectancy in excess of 30 years.


Proven Technology: original SBS elastomeric bitumen membrane system.  Rapid installation, laps secured by torching.


  • System carries a 15 year independently insured guarantee for both materials and workmanship.
  • Can only be installed by approved contractors to ensure product quality is maintained
  • User friendly, quick and easy to install.
  • Full range of accessories/supporting products, all included under a single comprehensive guarantee, includes: rooflights, `refurbishment outlets, vents, lead-free flashings, edge trims etc.

Holistic Package

For users peace of mind, this system is supported by the full Langley package that includes: survey’s, condition reports and proposals, specifications, site monitoring and reporting, technical and design advice, guarantee inspections, all at no additional cost.

The above information is issued in good faith and without warranty and is intended as a guide only. The information comprises typical data and does not constitute a specification.