A specification guide to weather louvres has been published by research organisation BSRIA in a bid to help system designers and specifiers of weather louvres to achieve optimum performance.
The Association said: 'Failure to understand and clearly express the performance requirement at the design or procurement stage increases the risk of the product not being fit for purpose. The end user may experience unwanted water penetration or wasted energy, both of which represent unnecessary cost. Improved efficiency of louvre design not only saves money but may assist with building regulations compliance and contribute to an improved energy rating for a building.'

The guide explains:

· How to understand weather louvre requirements.
· How to minimise whole-life costs through system design and louvre selection.
· Which terms to use to ensure that performance data are consistently stated when sourcing products from suppliers.
· how to minimise risks associated with overstated performance claims.

Weather Louvre Specification Guide (BG 36/2012) is available to order for £20 or £10 to BSRIA members here. Free pdf version is available. Alternatively you can email the bookshop at bookshop@bsria.co.uk or tel 01344 465529.