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CS Louvres Ventilation Louvre A-4050 - Continuous Line Ventilation Louvres

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Construction Specialties (UK) Ltd

Continuous line ventilation louvres offering very good airflow and some rain defence. Classified as C 2 up to 1.0 m/s.

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Application

Ventilation louvres providing very good airflow and some rain defence.

Description

Continuous line ventilation louvres offering very good airflow and some rain defence. Classified as C 2 up to 1.0 m/s.

Features and benefits:

  • Wide-pitched extruded blade design for maximum airflow performance.
  • Designed to offer some protection from wind-driven rain in lower face velocities.
  • Hidden mullions for continuous blade appearance on the façade
  • Easy to install solution, delivered in component form. Mullions to have pre-attached braces for easy fitting of louvre blades.
  • Optional perimeter flashings and cill pan can be supplied.

General information

Color

Silver

Other

Finish

Mill

Anodized

Powder-coated

Material

Aluminium

Length

151 mm

Guidance for specification option:

Louvre depth (inc. blades & mullions)

Width

Bespoke

Guidance for specification option:

• Standard blade width: 3600 mm

• Max height: not applicable

• Mullions at max 1500 mm centres (based on 1.5 kPa wind load) and at joints between blade lengths.

Height

Bespoke

Guidance for specification option:

• Standard blade width: 3600 mm

• Max height: not applicable

• Mullions at max 1500 mm centres (based on 1.5 kPa wind load) and at joints between blade lengths.

Uniclass

Pr_30_59_48_04 Aluminium louvre panel unitsPrimary
Ss_25_10_20/540 Custom-made louvres

CAWS

L10/54 Louvres

L10/650 Metal louvres

H11/140 Louvres

SKU Code

A-4050

Product range

CS Architectural Louvres - Ventilation

Specification data - Aluminium louvre panel units

Size (l x w x d)

-

Manufacturer guidance

Insert requirements or insert As drawing or As schedule.

Dimensions:

  • Standard blade width: 3600 mm.
  • Maximum height: not applicable.
  • Mullions at maximum 1500 mm centres (based on 1.5 kPa wind load) and at joints between blade lengths.
  • Louvre depth (inc. blades and mullions): 151 mm.

Stock lengths of blades and mullions will be used to fill in an opening as required.

Material

All components to be one-piece members extruded from aluminium alloy 6063-T6 (nominal minimum thickness to be: 1.73 mm for blades, 3.18 mm for mullions).

Finish

Milled.
Anodized, clear.
Anodized, colour.

Guidance for specification option:

Insert colour requirements.

Polyester powder-coated finish, matt, colour.

Guidance for specification option:

Insert colour requirements.

Standard for polyester powder-coated finishes.

30 gloss units.

Polyester powder-coated finish, gloss, colour.

Guidance for specification option:

Insert colour requirements.

70 gloss units.

Colour

As Finish.

Construction

Blades fitted to hidden mullions spaced at maximum 1500 mm centres and at joints between blade lengths (based on 1.5 kPa wind load).

Weather performance

-

Water penetration class (minimum)

To BS EN 13030, class C up to 1.0 m/s.

Guidance for specification option:

Class D at 1.5–3.5 m/s.

Discharge loss coefficient (minimum)

To BS EN 13030, class 2: Airflow coefficient Ce (entry): 0.338; Cd (discharge): 0.345.

Louvre configuration

-

Number of banks

One.

Blade orientation

Horizontal.

Blade pitch

100 mm.

Blade angle

38°.

Accessories

None.
Bird/ vermin guard, galvanized steel welded mesh.

Guidance for specification option:

Standard bird/ vermin guard. Pre-fitted welded aluminium frame included.

Stainless steel mesh available on request.


As guards of any type create additional resistance to airflow and reduce flow rate, louvre sizes should be adjusted to allow for this.

Bird/ vermin guard, expanded aluminium welded mesh.

Guidance for specification option:

Mill finish as standard, can be powder-coated in RAL colours to match louvre.

Pre-fitted welded aluminium frame included.


As guards of any type create additional resistance to airflow and reduce flow rate, louvre sizes should be adjusted to allow for this.

Insect mesh, PVC-coated fibreglass.

Guidance for specification option:

As standard; stainless steel mesh available on request.


As guards of any type create additional resistance to airflow and reduce flow rate, louvre sizes should be adjusted to allow for this.

Louvred door(s).

Guidance for specification option:

Insert requirements.

  • Manufactured to bespoke sizes and specifications.
  • Maximum size of a single door leaf is 2400 x 1200 mm.
  • Single and double door configurations are available.
  • Door leaf frame is fabricated from an aluminium angle, with blades clipped in.
  • Typically supplied with a door frame and standard hardware.
  • Optional accessories, such as bird guards, insect mesh or single-skin blanking panels can be accommodated.

Volume control dampers.

Guidance for specification option:

Contact manufacturer for available options and insert requirements.

Flashing, head.
Flashing, side.

Cill pan

Not required.

Louvres to be supplied with a full depth cill pan with welded side panels, formed from 2 mm-thick aluminium.

Guidance for specification option:

Size to suit project requirements; consult manufacturer for details.

Blanking panels

Not required.

Single-skin aluminium panels, standard powder-coated black to one face only.

Guidance for specification option:

  • Standard.
  • 1.2 mm thick aluminium sheet.

Single-skin aluminium panels, powder-coated black to both sides.

Guidance for specification option:

  • On request.
  • 1.2 mm thick aluminium sheet.

Single-skin aluminium panels, powder-coated to match louvre.

Guidance for specification option:

  • On request; specify colour/ finish required.
  • 1.2 mm thick aluminium sheet.

Single-skin aluminium panels, mill finish.

Guidance for specification option:

  • On request.
  • 1.2 mm thick aluminium sheet.

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Sustainability data

Contains Red List materials

No

Material

Aluminium

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

55 %

Guidance for specification option:

Aluminium components are manufactured using minimum 55% recycled content (mix of pre- and post-consumer scrap).

Other aluminium options can be offered subject to minimum quantities, contact manufacturer to discuss your requirements.

Literature

CS Architectural Louvres (2025)

CS Architectural Louvres (2025)

CS A-4050 Ventilation Louvre Product Sheet

CS A-4050 Ventilation Louvre Product Sheet

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