Building Underlay

Highly breathable roof and wall underlay with an integrated drainage mat, based on Ventia Iron. Suited to retr...

$742.85 $654.50

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Ventia Black - Self Adhesive Underlay is a high-performance, fully adhered, vapour-permeable weather barrier b...

$870.50 $767.00

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Larger 2.74m wide roll of the lightweight, highly breathable Ventia Iron roof and wall underlay. High tear res...

$237.20 $209.00

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Ventia Iron is a high-performance, BRANZ-appraised roof and wall underlay engineered for NZ conditions. Featur...

$128.30 $113.00

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Heavy-duty, self-supporting roof and wall underlay, BRANZ appraised for both roof and wall use. Bright white,...

$339.70 $299.30

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