Which Cor-Vent® Roof Ventilation Strip Do I Need?

The first step is understanding your roof pitch.

Standard Roof Pitch (15°–75°)

Suitable for:

• Steel roofing
• Tile roofing
• Residential and commercial roof applications

Cor-Vent® 8K products are designed primarily for these roof builds.

Low Roof Pitch (0°–15°)

Suitable for:

• Low-pitch steel roofing
• Roof-to-wall interfaces
• Modern low-slope roof designs

Cor-Vent® 25K products are specifically developed for low-pitch ventilation requirements.

Choose this when:

• You need low-level ventilation
• You are building a standard residential steel roof
• A 200mm width suits your roof detail

Cor-Vent® 8K 200 creates passive airflow at the eaves to help reduce moisture and condensation while maintaining a clean roofline appearance. Ideal for standard steel roof applications.

Choose this when:

• You need low-level ventilation
• Your build benefits from increased coverage
• You are working with tile roofing or larger roof designs

The wider 250mm profile provides greater installation flexibility and is particularly suited to tile roofing applications.

Choose this when:

• Your project is in a bushfire-prone area
• BAL compliance is required
• You need low-level ventilation for a standard residential roof

Featuring ember protection mesh compliant with AS3959, this product helps deliver airflow while supporting BAL-rated roof designs.

Choose this when:

• Bushfire protection is required
• Increased ventilation coverage is preferred
• Tile roofing or larger roof builds are involved

The wider BAL-rated solution combines ember protection with increased coverage and installation flexibility.

Choose this when:

• Ventilation is required at ridge level
• Ventilation is needed at apex roof sections
• Parapet wall ventilation is required

Cor-Vent® 5K allows warm, moisture-laden air to escape at high level and is designed to work alongside low-level Cor-Vent® intake ventilation systems. Applicable across both standard roof pitch and low roof pitch steel roofing applications.

Choose this when:

• Ventilation is required directly along a ridge line
• You are building a hipped roof system
• You want a complete passive airflow pathway

Designed to release warm air and moisture at the highest point of the roof, Cor-Vent® Ridge complements low-level ventilation products to complete the ventilation system.

Choose this when:

• You need low-level ventilation
• Your roof design requires a compact solution
• Steel roofing applications have tighter detailing requirements

The 50mm profile provides passive airflow while supporting low-pitch roof ventilation requirements.

Choose this when:

• Greater ventilation coverage is required
• Larger low-pitch roof designs are involved
• Installation flexibility is preferred

The wider 100mm profile increases airflow coverage while maintaining passive ventilation performance.

Choose this when:

• Bushfire protection is required
• Roof pitch is between 0°–15°
• Compact low-level ventilation detailing is needed

Designed specifically for BAL-rated low-pitch roofing applications.

Choose this when:

• Bushfire compliance is required
• Larger low-pitch roof builds require greater airflow capacity

Combines BAL protection with higher ventilation capacity for demanding low-pitch applications.

Choose this when:

• Additional spacing or installation support is required
• Maintaining airflow clearances is critical
• Roof detailing requires consistent installation gaps

Designed to support accurate installation and consistent ventilation pathways.

Start with three simple questions:

✓ What roof pitch am I building?
✓ Do I need low-level or high-level ventilation?
✓ Does my project require BAL-rated protection?

Once those decisions are made, choosing the right Cor-Vent® strip becomes straightforward.

How many Cor-Vent® Strips do I need?

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