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Compact louvres have class A weather rating

Published:  08 May, 2014

Gilberts, weather louvre

Gilberts offers small-scale high-performance weather louvres from a unit that is just 32 mm deep. Typically to provide high weather protection, external louvres have a large deep-form louvre profile to present high resistance to water penetration. Its free area ratio is 40%.

The WH-38 series is based on a new 38 mm blade. Its 32 mm depth is small enough to install into a window-frame rebate or aperture. The various options include a frame designed to enable WH-38 unit to bead into popular window apertures.

The weather resistance is achieved by a 38 m louvre with parametric curve blade profile having an upper weather lip. It has been tested by BSRIA to EN 13030. With an insect screen, the unit achieve a class A weather rating at up to 1 m/s. With a built-in thermal break, the unit is ideal for natural-ventilation applications.

The WH series is available in flanged, channel or glazing-frame borders and can be made in sizes from 200 to 1000 mm square in one unit. Larger sizes can be supplied and assembled in sections.

For more information on this story, click here: May 2014, 163

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