75mm Pitch Weather Louvres

75 pitch louvre

75mm Pitch Weather Louvres

EWB75 Series

idealair EWB75 external weather louvres are ideal for intake or exhaust applications. Blades are mounted at 45 degrees in a perimeter frame and overlap to ensure good protection against water ingress. Bird screen is fitted to all louvres as standard.



Frames and blades are manufactured from 6063 T6 extruded aluminium. On sizes of up to 1 square metre frame mitres are mechanically jointed and tig welded on the rear and neck for added strength and rigidity preventing any distortion of the hairline mitres, on sizes larger than 1 square metre frames are fully welded. Standard bird screen is 19swg galvanised wire with cell sizes of 12.5 x 12.5mm.


MF – Mill Finish (Standard)
PPL RAL – Stock RAL colours available to order

Special Requirements

The standard flange is on the EWB75 range of louvres is 50mm but any size of flange is available as an option, fully customisable to suit project specific requirements, offering various styles of perimeter frame such as recessed, reversed or channel frames for glazing applications.

Louvres can be manufactured in a variety of different shapes, such as circular or triangular and multiple panel configuration are available with mullion or continuous appearance to suit your requirements. Single and double doors are also available, please contact us with your requirements.

Louvre is supplied with no fixing as standard and applied by others. Alternative fixing methods are available on request.

N – No fixing provided (fixing by others)
S – Countersunk Flange Holes

Countersink flange holes

C – Concealed Neck Fixing (fixing by others).

concealed neck fixing

R – Rear Fixing Lug

rear fixing

*Diagrams for reference purposes only

Size Range

100 x 200mm to 2000 x 2000mm nominal size in 50mm increments. Special sizes and multiple units are available on a made to order basis.

Please enquire for details.


Please specify the accessories on your order.

IS – Insect Screen
VG – Vermin Guard