ERD - "E" Series Louvre
ERD is an extruded Single Bank Louvre System designed for applications requiring ventilation with a good degree of rain defence. For non- rain defence applications, see 1UL or ESC.
See also 2UL or 3UL for other rain defence louvre systems.
It may be combined with other Colt products such as rooflights and glazed facades.
Options
These decorative finish options are available:
- Mill Finish
- Stoved Polyester Powder Paint
- Anodised (aluminium)
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 Insect Mesh, the design should allow for additional resistance to airflow and reduced flow rate performance.
Performance specification
The louvre system achieves minimum performance coefficients (Cv) of 0.30 (inlet) and 0.29 (extract). These have been established as the result of full-scale wind tunnel tests.
The louvre system achieves the following weathering classification when tested against the EN 13030: 2001 standard (method of test for water rejection performance of louvres subjected to simulated rainfall):
Class A2 - up to 0m/s suction velocity
Class B2 - up to 1.5m/s suction velocity
Class C2 - up to 2.0m/s suction velocity
Class D2 - up to 3.5m/s suction velocity
More details are provided in the leaflet.
Features and benefits
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.
CPD seminars
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