VENT Introduces New Deep Trough Ridge Vent

With the growing popularity of deep trough profiled roof claddings, experts in passive ventilation VENT, have expanded their product range with a new ridge vent and apron batten specifically designed for deep trough roofs.

The new deep trough vents follow the same design principles as VENT’s standard RV10P Ridge Vent and AV20 Apron Batten, but with a larger aluminium soft edge flashing of 80mm (as opposed to the 55mm flashing on the standard vents). The longer flashing allows for a minimum of 32mm of surface contact with trough roofs up to 48mm, creating an effective weathertight seal between the vent and the roof.

The vents provided the same trusted performance of VENT's standard ridge and apron vents. Applied to the apex of the steel roof, the VENT Deep Trough Ridge Vent RV10DT creates negative pressure to draw air through the roof cavity, ensuring continuous airflow of 8,000mm² per linear metre. The VENT Deep Vent Apron Batten AB20DT likewise ensures calculated airflow of 8,000mm² per linear metre and is designed to ventilate on abutment details or be installed on a mono pitch skillion roof detail,

The new vents were a natural progression for the team at VENT. “Trough depths were exceeding 38mm, so we had to come up with a new vent that could accommodate those trough depths as they become more popular,” says James Johnston, VENT.

The recently launched deep trough vents have already been specified on projects across the country, including a number of showhomes and residential properties and a Queenstown apartment building.

Both vents are designed to be installed in conjunction with effective eaves ventilation, such as VENT’s over fascia vents and eaves vents. Designed for corrugate profiled roof claddings, the vents are compatible with a large number of existing roof claddings. For newer clip systems, VENT recommends checking the compatibility of their vents with the roofing manufacturer.

VENT is in the process of having these larger format deep trough and apron vents added to their BRANZ appraisals.

RIDGE VENT –Deep Trough RV10DT

VENT

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The VENT Ridge Vent Deep Trough RV10DT is designed to release warm air from the roof void using the natural convection of rising warm air or by means of negative pressure created by wind blowing over the roof.

Designed to form to roofing profiles and prevent water ingress on any pitch roof
Recommended for cold roof pitch of over 30° and skillion roofs
Compatible with roof cladding profiles with a trough depth of >38mm
New build or renovation
Suitable for use in all Wind Zones up to and including Extra High
See BRANZ Appraisal 979 for full information

Extra High Wind Zone

In the opinion of BRANZ, Roof Ventilation Products, if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to meeting the following provisions of the NZBC:

Clause B1 STRUCTURE: Performance B1.3.1, B1.3.2 and B1.3.4. Roof Ventilation Products meet the requirements for loads arising from gravity loads, wind and impact [i.e. B1.3.3 (b), (h) and (j)]
Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years and B2.3.2. Roof Ventilation Products meet these requirements
Clause E2 EXTERNAL MOISTURE: Performance E2.3.2. Roof Ventilation Products contribute to meeting this requirement
Clause E3 INTERNAL MOISTURE: Performance E3.3.1. Roof Ventilation Products contribute to meeting this requirement
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Roof Ventilation Products meet this requirement

See BRANZ Appraisal 979 (2023) for full information.

BRANZ Appraised

VENT APRON VENT Deep Trough — RV10DT-Half

VENT

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The VENT Apron Vent Deep Trough RV10DT Half is a polypropylene vent which enables warm air to escape from the lower roof void or through the barge detail of a mono-pitch skillion roof.

Designed to prevent water ingress on any pitch roof
Compatible with roof cladding profiles with a trough depth of >38mm
New build or renovation
See BRANZ Appraisal 979

Extra High Wind Zone

Clause B1 STRUCTURE: Performance B1.3.1, B1.3.2 and B1.3.4. Roof Ventilation Products meet the requirements for loads arising from gravity loads, wind and impact [i.e. B1.3.3 (b), (h) and (j)]
Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years and B2.3.2. Roof Ventilation Products meet these requirements
Clause E2 EXTERNAL MOISTURE: Performance E2.3.2. Roof Ventilation Products contribute to meeting this requirement
Clause E3 INTERNAL MOISTURE: Performance E3.3.1. Roof Ventilation Products contribute to meeting this requirement
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Roof Ventilation Products meet this requirement

See BRANZ Appraisal 979 (2023) for full information.

BRANZ Appraised

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