SIGA Majrex 200 – Unidirectional Interior Wall Membrane (4.9' Wide)

SIGA Majrex 200 is an innovative vapour and air barrier membrane designed to ensure a durable and airtight building envelope. Featuring Hygrobrid® technology, it controls moisture migration in one direction only, preventing moisture from entering while allowing excess vapour to escape from the wall cavity to the interior or exterior (when paired with a vapour-permeable membrane like SIGA Majvest).

PDF to download

• SIGA Technical Data Sheet
• SIGA Health Product Declaration 
• SIGA Majrex 200 System Guideline
  

✔ Unidirectional moisture transport – Protects the structure from moisture buildup and enhances wall durability.

✔ Airtight performance – Reduces heat loss and improves energy efficiency.

✔ Stable and flexible – Easy to install with a wrinkle-free, fibre-reinforced PE/PP structure.

✔ Printed guidelines – Simplifies cutting and installation, saving time on the job.

SIGA Majrex 200 is ideal for new construction and renovations requiring an effective air and moisture barrier. Compatible with SIGA system products for optimal performance.