Cromar Building Products

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Protect 1F®Vent 3® Classic

Vent 3®
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Vent 3®



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An IAB & BBA certified breathable roof underlay for cold & warm roof application requires no ventilation if installed in accordance with the manufacturers instructions.

• IAB & BBA certified
• Cold & Warm roof application
• Triple layer spun bonded polypropylene
around a microporous film
• Clean and easy to use
• Excellent tensile strength
• Lightweight & flexible

• No gusting wind noise
• Excellent nail tear resistance
• UV Stable for up to 4 months
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