Ventia Iron 1136 Metal Roof & Wall Underlay with Drainage Mat NZ

Ventia Iron 1136 Metal Roof & Wall Underlay with Integrated Drainage Mat

Ventia Iron 1136 is a premium metal roof and wall underlay membrane designed to deliver superior moisture control, ventilation, and long-term protection for modern construction projects. Engineered with a pre-applied drainage mat, this advanced roofing underlay promotes continuous airflow and efficient drainage behind roofing or wall cladding systems.

This highly breathable roofing underlay allows moisture vapour to escape while maintaining a durable weather barrier, helping reduce condensation buildup and protecting building structures from moisture damage.

Advanced Moisture Management for Modern Roofing Systems

Traditional roof underlays may trap moisture and restrict airflow, which can lead to condensation, corrosion, and structural issues. Ventia Iron 1136 roofing underlay solves this by combining breathable membrane technology with integrated drainage and ventilation.

Key Features

✔ Integrated Drainage Mat
Pre-applied drainage layer improves moisture management and promotes continuous airflow behind roofing and cladding systems.

✔ Highly Breathable Membrane
Allows trapped moisture vapour to escape while maintaining a strong protective barrier.

✔ Ideal for Retrofit Wall Insulation
One of the most effective underlays for upgrading insulation in existing homes without removing cladding.

✔ Designed for Metal Roofing Systems
Optimised for open-pan metal roofing profiles including Eurostyle, TRS Standing Seam, ESPAN, Eurotray, and Euroline.

✔ Improved Drainage & Ventilation
Helps prevent condensation buildup and corrosion beneath metal roofing.

✔ Reduces Visual Roofing Imperfections
Minimises issues such as oil canning in long sheet metal roofing installations.

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Ideal Applications

Ventia Iron 1136 is commonly used for:

• Metal roofing installations

• Wall cladding systems

• Retrofit wall insulation projects

• Standing seam metal roofing

• Modern residential and commercial construction

Its advanced design ensures reliable moisture control, ventilation, and long-term roofing protection.

Feel free to place your order by emailing us at [email protected] or call us at +64 22 196 9021 – we’d love to hear from you!