Louvre windows provide natural ventilation from smaller areas

Published:  02 June, 2011

Naco, louvre windows, natural ventilation

Double-glazed aluminium louvres with thermal breaks from Naco can provide natural ventilation while meeting the standards for airtightness required in modern buildings. Vengen louvre windows can provide the required ventilation rates with much smaller openings than bottom-hung windows, giving greater design and architectural flexibility and improving the thermal efficiency of the building envelope. They can be adapted to fit most applications, including curtain walling and brick/block structures.

These windows can be operated manually or by motorised controls. They are available as bespoke products to meet a specifierís exact requirements.

The double-glazed thickness of 28 mm gives thermal performance in line with the U-values that new and refurbished buildings must meet. Toughened, laminated and argon-filled glazing are available in a range of colours and tints. Insulation panels can be provided in place of glass where needed.

Vengen has been independently tested by BSRIA for aerodynamic and weather criteria and by Wintech to determine air leakage and water tightness.

These units can also provide smoke ventilation, and testing to EN12101-2 for heat and smoke extraction is planned for later this year.

For more information on this story, click here:  June 2011, 167

comments powered by Disqus



Welcome to Modern Building Services Online, the web edition of Modern Building Services (MBS) journal and the UK's most popular Building Services engineering site. Modern Building Services covers the entire Building Services Engineering industry. This site contains archived content from the journal, plus web-specific content.
September 2015: DIGITAL EDITION

Modern Building services has a group
on Linkedin - join us!

Show button


  • Senior Electrical Design Engineer Building Services

    BAR are working with a cultured and strategic building services company which prides itself on 100% repeat business. They have edged their name in the market for providing the highest quality of designs for their clients. The main are of focus will be on.........

  • Senior Electrical Design Engineer Building Services

    A very interesting opportunity has arisen to work with an exciting and innovative building services consultancy based in London. They have offices in Oxford and London and have a management that leads from the front. The main are of focus will be on larg.........

  • Senior / Principal Electrical Engineer

    † † A genuinely exciting opportunity to work one of the standout names in Building Services, known for their high profile projects are seeking a Senior / Principal Electrical Engineer. † This multi – disciplinary consultancy inspire clients and t.........

more jobs »


"Is the Building Services industry lagging behind in the implementation of BIM?"