ProctorGeo™ IRMA is engineered for use in IRMA flat roof systems, where insulation is placed above the waterproofing membrane. Acting as both a filter and water-flow reducing layer, it prevents fines and debris from reaching the membrane while draining rainwater before it impacts insulation efficiency.

• Vapour-permeable water control layer for IRMA systems
• Reduces rainwater cooling effect on insulation
• Impermeable to liquid water, prevents pooling
• Protects waterproofing membranes from debris and fines
• UV stable for up to 2 months exposure
• Resistant to mould, lime water, and chemical agents
• Lightweight and easy to install

Explore Bowens range of ventilation products for more options.