1UL - Universal Louvre

1UL is a roll-formed Single Bank Louvre System designed for screening or cladding applications and ventilation application when rain defence is not critical. For rain defence applications, see ERD, 2UL or 3UL. It is available either in deep or shallow section, as a horizontal or vertical louvre, with a wide variety of effects such as perforated or stucco embossed.

It may be combined with other Colt products such as rooflights and glazed facades.

See ESC for an alternative single bank 50mm pitch extruded louvre system.

Options

There are two front louvre profiles:

Shallow (50mm pitch)

Deep (100mm pitch)

There are two arrangements:

Horizontal

Vertical

Both arrangements can also be inverted. Both arrangements can be inverted for roof screens, which is important when wishing to hide items which are high up, such as plant rooms.

There are three options for the principal components:

Aluminium

Galvanised Mild Steel

Stainless Steel

Perforated, stucco and pre-coated materials are also available and can be used to singular effect (subject to material specification and quantity).

There are many decorative finish options, including:

Mill Finish (aluminium)

Stoved Polyester Powder Paint

Anodised (aluminium)

Perforated, Stucco and Pre-Coated Louvres are also available on request for larger applications.

The applied finishes can be supplied in two coverage levels:

Total (all principal components)

Partial (front louvres and frames only).

There are a large selection of optional accessories such as:

Mitred Corners

Blanking Panels

Special Shapes

Acoustic Modules

Guards (bird/ insect/ security)*

Doors

Turrets

* With all guards, particularly insect mesh, the design should allow for additional resistance to airflow and reduced flow rate performance.

Performance specification

The 1UL louvre system achieves minimum performance coefficients (Cv) of 0.43 (inlet) and 0.38 (extract). These have been established as the result of full-scale wind tunnel tests.

Single bank louvres are ideally applied in sheltered locations or where rain penetration may be acceptable. The louvre system will achieve Class D1 when tested at all velocities to EN 13030:2001.

Features and benefits

High airflow performance.

Corrosion resistant aluminium.

High range of options.

Louvres are not drilled but clipped and not riveted or screwed to structural supporting mullions, to allow for thermal expansion without distortion along their length.

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