The SikaProof® A+ system is an external pre- and post-applicable FPO/TPO based sheet membrane system fully bonded to the reinforced concrete structures for below ground concrete protection, waterproofing and gas proofing. Unique to SikaProof A+, the same membrane can be used for both pre-application and post-application. Alongside a simple suite of tapes and accessories, Sikaproof A+ provides a simple, durable and robust system for structural waterproofing
SikaProof® A+ is classified as a type A barrier under BS8102:2022.
It is suitable for residential and commercial projects (basements), as well as for infrastructure projects (cut & cover tunnels and station boxes).
Thanks to the A+ technology, the SikaProof® A+ system creates a Dual Bond with the concrete structure.
Types of Sika Bonded Waterproofing
Mechanical Bond
- Coarse structure provides increased surface area for concrete to interlock with the membrane
Chemical Bond
- Special FPO / TPO polymer with adhesive properties to bond to concrete
- Cement content for added mechanical bond strength due to interaction with cement matrix of concrete
Key Features of Sika Bonded Waterproofing
SikaProof A+
- Dual bond to concrete
- Resistant to lateral water migration up to 7 bar
- Proven radon barrier
- Robust against soiling
Application
- Same membrane pre and post- application
- Up to 90 days exposure
- Applicable on young concrete
Joints and Details
- Various joint solutions
- Several tapes
- Thermal jointing
- Fast and easy detailing
Durability
- +50 years of experience
- Proven durability through in-depth testing
- Highly chemically resistant FPO/TPO membrane