High performance methane, radon and CO2 resisting solar reflective waterproof membrane for basements and structures.

Proofex Engage is a unique patented waterproof membrane system comprising a cell mesh bonded to a blended polyethylene / polypropylene membrane which allows poured concrete to interlock, forming a tenacious mechanical bond.

Proofex Engage provides water, water vapour and gas protection to water excluding structures and protects concrete from aggressive ground salts, chemicals and hydrocarbons.

Proofex Engage is supplied with a self-adhesive selvedge along one side of the roll to provide sealed laps and a comprehensive range of auxiliary products to simplify the application process. Waterproofing and gasproofing membrane for concrete basements, lift pits, carparks and other water excluding structures. Proofex Engage can be used to achieve waterproofing to Grades 1,2 and 3 as defined in BS 8102: 2009.


  • Basement waterproofing protection to grades 2, 3 and 4 as defined in BS8102:1990.
  • Methane, radon and CO2 protection as defined in BRE Report 212.
  • To provide a vapour and waterproof membrane in building and civil engineering structures.
  • Resistant to attack from chemicals and aggressive ground salts.
  • Forms a tenacious mechanical bond to poured concrete remaining in place if settlement of the substrate occurs.
  • Simple application – no primers or protection material required.
  • Inert product – no risk of a reaction with ponded water prior to concrete being poured
  • Durable – withstands inclement weather and resists construction related damage. Can be trafficked immediately after application.
  • Facilitates flexible construction programming.
  • Full range of Fosroc hydrophilic and PVC waterstops available to provide complete solution to waterproofing of the structure.