VL 104D 1 1 1140x855
VL-104D

Drainable Single Bank Louvre

Designed for reliable rain defence, the VL-104D features a single bank drainable blade system with vertical gutters integrated into a flanged perimeter frame. This efficient design ensures water is directed away from the blades and ejected to the panel's front. Constructed from extruded aluminium, it supports both intake and exhaust ventilation, making it ideal for plant rooms, schools, commercial, and industrial applications.

Specifications
Technical Data Sheet
Installation Details
Compliance Documents
Case Studies
Dimensions

Depth: 104.5mm

Height: Minimum 300mm, Maximum 3000mm (panel modules can be spliced together to form larger louvres)

Width: Minimum 200mm, Maximum 3000mm (panel modules can be spliced together to form larger louvres)

Blade Centres

77mm

Rain Defence Performance (BS/EN 13030:2001)

Class C - up to 1.0m/s suction velocity

Class D - up to 3.5m/s suction velocity

Aerodynamic Performance (BS/EN 13030:2001)

Air Inlet: 0.317, Class 2

Air Extract: 0.317, Class 2

 

Geometric Free Area (active blades only) 60%
Surface Finish Options

Powdercoated

Anodised

Raw Aluminium (Mill)

Perimeter Frame Options

Flanged Frame

Channel Frame

Ancillaries Options

Bird Mesh

Insect Mesh

Solid Blanking

Perimeter Mounting Angle

VL-104D Data Sheet (PDF)

VL-104D Data Sheet (DWG)

VL-104D Deflections & Spans Sheet

VL-104D Mid-Span Support Bar Spacing

Ventilation Louvre Brochure

VL-104D_Fixing details to weatherboard cladding (PDF)

VL-104D_Fixing details to weatherboard cladding (DWG)

VL-104D_Fixing To Brick Veneer (PDF)

VL-104D_Fixing To Brick Veneer (DWG)

VL-104D_Fixing To Fibre Cement Cladding (PDF)

VL-104D_Fixing To Fibre Cement Cladding (DWG)

VL-104D_Fixing To Horizontal Profiled Metal Cladding (PDF)

VL-104D_Fixing To Horizontal Profiled Metal Cladding (DWG)

VL-104D_Fixing To Precast Concrete (PDF)

VL-104D_Fixing To Precast Concrete (DWG)

VL-104D_Fixing To Vertical Profiled Metal Cladding (PDF)

VL-104D_Fixing To Vertical Profiled Metal Cladding (DWG)

VL-104D Specification

VL-104D BPIR Declaration

VL-104D Product Technical Statement

Blake Street Apartments

Read More

Te Atatu Peninsular Library & Community Centre

Read More

Safe Storage Westgate

Read More

30 Madden Street

Read More

Fisher & Paykel Healthcare

Read More
You can now find Ventüer products on Masterspec

Related Products

VL 2SD
High Weather Protection Louvre

The VL-2SD is a two-stage horizontal weather louvre designed for excellent rain defence and efficient water management. Supported by a two-piece pressure-equalised mullion system, it ensures reliable drainage and durability. The 150mm frame depth is optimized for compact installations, and the clip-fixed front blades enable seamless, large-scale louvre construction without visible mullions. Ideal for retail, apartments, industrial buildings, and offices, the VL-2SD provides robust performance in diverse applications.

read more
VL 100S
Twin Weatherstop Louvre

The VL-100S is a single-bank louvre designed for intake and exhaust applications, featuring a twin weather stop blade profile for effective rain defence and low pressure loss. Made from extruded aluminium, it offers flexible installation options with either clip-fixed blades or a flanged perimeter frame. Ideal for factories, industrial facilities, car parks, and warehouses.

read more
VL 77EX
Maximum Airflow for Exhaust

The VL-77EX is designed specifically for exhaust applications, offering very low pressure loss to maximize airflow with minimal mechanical assistance. Its design prioritizes airflow performance over rain defence, making it ideal for use in sheltered environments, such as under canopies. Constructed from durable extruded aluminium, it provides reliable ventilation for mechanical systems where high rain protection is not required. Common applications include exhaust louvres in industrial and commercial settings.

read more
275539551 943826966505648 2662535987041024926 n

Our Difference is in the AIR (Alacrity, Innovation & Responsibility)