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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 Ventilation Louvre or ESC.
See also 2UL Plant Room Ventilation Louvre or 3UL Weather Louvre 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.
ERD - "E" Series Louvre
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
For more details download the leaflet
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