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CS Louvres Ventilation Louvre A-4080/A-4085 - Modular Ventilation Louvres

Verified by manufacturer 23 hours ago

Standard frame, visible mullions

Construction Specialties (UK) Ltd Variant:

Modular ventilation louvres offering very good airflow and some rain defence.

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+44 (0)1296 652800 Website

Application

Ventilation louvres providing very good airflow and some rain defence.

Description

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

Features and benefits:

  • Widely spaced extruded blades for maximum airflow performance.
  • Designed to offer some protection from wind-driven rain in lower face velocities.
  • Choice of visible or hidden mullions to create desired effect on the façade.
  • Glazing frame option available.
  • Blast resistant option can be supplied.
  • Delivered to site as pre-fabricated units for simplified installation.

General information

Color

Silver

Other

Finish

Mill

Anodized

Powder-coated

Material

Aluminium

Length

102 mm

Guidance for specification option:

Unit depth - standard frame, visible mullions.

154 mm

Guidance for specification option:

Unit depth - standard frame, hidden mullions.

108 mm

Guidance for specification option:

Unit depth, glazing frame option.

Width

Bespoke

Guidance for specification option:

Module dimensions (based on 1.5 kPa wind load):

• Max height: 3600 mm*

• Max width: 3600 mm*

* For manual handling purposes max 80 kg per

unit is recommended.

Louvre weight is 13 kg/m2, based on a 2 m x 2 m module size

Height

Bespoke

Guidance for specification option:

Module dimensions (based on 1.5 kPa wind load):

• Max height: 3600 mm*

• Max width: 3600 mm*

* For manual handling purposes max 80 kg per

unit is recommended.

Louvre weight is 13 kg/m2, based on a 2 m x 2 m module size

Warranty description

Two year

Guidance for specification option:

Product warranty.

Warranty for finishes (powder-coated or anodised) is up to 30-years.

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-4080/A-4085

Product range

CS Architectural Louvres - Ventilation

Specification data - Aluminium louvre panel units

Size (l x w x d)

-

Manufacturer guidance

Insert length and width requirements or insert As drawing or As schedule. Combine units to suit any requirements.

Module dimensions (based on 1.5 kPa wind load):

  • Maximum height: 3600 mm*.
  • Maximum width: 3600 mm*.

*For manual handling purposes maximum 80 kg per unit is recommended. Louvre weight, based on a 2 x 2 m module size, is 13 kg/m².

Unit depth: 102 mm.

Material

All components to be one-piece members extruded from aluminium alloy 6063-T6 (nominal minimum thickness to be: 1.73 mm for blades, 2.05 mm for heads, cills, jambs & 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

Supplied as modules, mechanically assembled in the factory using stainless steel fasteners. Multiple module installations to include interlocking visible mullions.

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.

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.

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
-

1

IFC
-

1

Literature

CS Architectural Louvres (2025)

CS Architectural Louvres (2025)

CS A-4080/A-4085 Ventilation Louvre Product Sheet (02.25)

CS A-4080/A-4085 Ventilation Louvre Product Sheet (02.25)

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