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Roll Panel Vent – G502
Description

The VENT Roll Panel Vent is designed to maintain a continuous 25mm air gap between the underside of the roofing membrane or sarking board and loft insulation at the eaves, providing a consistent flow of air into the roof space.

The G502 castellated profile is laid across the top of the roof trusses/rafters parallel with the eaves level and is suitable for both new build and roof renovation projects. The extra width of the panel allows for better coverage when low pitch and deep insulation details are encountered.

This product should be used in conjunction with other soffit/fascia vents to provide a complete roof ventilation system.

Key Features
  • Ensures unimpeded air flow through the eaves into the roof cavity
  • Protects the insulation from moisture transfer and wind movement
  • Acts as a wind barrier
  • Quick and easy installation

In line with BRANZ appraisals for any insulation:

  • Prevents moisture transfer from roofing underlay to insulation
  • Provides a 50mm gap between roofing underlay and insulation
Scope of Use

Suitable for use in new within the following scope:

  • Up to 10m in height, and
  • With a risk score of less than 20, when evaluated against the E2/AS1 risk matrix, and
  • In wind zones up to extra high as defined in NZS 3604:2011, and
  • In all corrosion zones as defined in NZS3604:2011
Limitations on Use

The VENT Roll Panel Vent can only be used on new build projects.

As a moisture or wind barrier the VENT Roll Panel Vent can be used in isolation. However, to achieve the function of allowing airflow through the vent, the vent must be used in conjunction with VENT Over Fascia Vents (G1200N or G2500N) or VENT Circular Soffit Vents (G700).

NZS 3604 Wind Zone Extra High suitable
Extra High Wind Zone
Statement of Building Code Compliance

VENTs Passive Roof Ventilation Products comply with the following provisions of the NZ Building Code:

  • B1.3.1, B1.3.2
  • B1.3.3 (a)
  • B1.3.4 (a, b, c, d, e)
  • B2.3.1 (a)
  • B2.3.2 (a)

Evidence: All products are manufactured by Manthorpe Building Products Ltd (UK) who are ISO 9001 accredited by SGS Certificate # GB12/84769, certified since 2011.

In-Service History

The use of VENT Roll Panel Vent (G502) or similar, has been standard practice in Canada, the USA and Europe for decades. Since the introduction of the VENT Roll Panel Vent to New Zealand, the vent has been successfully installed in hundreds of New Zealand buildings.

Other Performance Attributes
  • 15 year warranty
Documents
Passive Ventilation System: 15-30° Roof Pitch

2021

Passive Ventilation System: Mono Pitch Cold Roof 15-30°
Passive Ventilation System: Roof Pitch >30°

2021

Product Technical Statement

Jan 2024

Detailed Thermal Calculations
System Warranty

May 2023

Brochure with Brown Batts

Jan 2024

Vent Brochure with Pink Batts

Jan 2024

BRANZ Comparative Study of Corrosion Rates in Vented and Unvented Roof Cavities

2021

Video: Why Is Passive Roof Ventilation Necessary

2021

CAD/PDF Details
Full Set of Roof Drawings

Full Set of Roof Drawings

Dec 2022

Pressed-Metal-Tile-15-or-more-Cold-Roof-Eave-G1200N-+-G502

Pressed-Metal-Tile-15-or-more-Cold-Roof-Eave-G1200N-+-G502

Dec 2022

Steel-Longrun-15-or-less-Roof-Eave-G2500N-+-G502-+-VB10-+-G1275

Steel-Longrun-15-or-less-Roof-Eave-G2500N-+-G502-+-VB10-+-G1275

Dec 2022

Steel-Longrun-15-or-more-Roof-Eave-G1200N-+-G502-+-VB10-+-G1275

Steel-Longrun-15-or-more-Roof-Eave-G1200N-+-G502-+-VB10-+-G1275

Dec 2022

Steel-Longrun-25-or-more-Roof-Eave-G1200N-+-G502-+-VB10-+-G1275

Steel-Longrun-25-or-more-Roof-Eave-G1200N-+-G502-+-VB10-+-G1275

Dec 2022

Steel-Longrun-30-or-more-Roof-Eave-G1200N-+-G502-+-VB10-+-G1275

Steel-Longrun-30-or-more-Roof-Eave-G1200N-+-G502-+-VB10-+-G1275

Dec 2022

VENT provide complete passive ventilation systems that ensure healthy homes free from internal moisture and condensation.

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