Glazing Vision

Glazing Vision: Duke Street, St James’s, London

  • 12 Sep 2022

Barr Gazetas worked closely with BW: Workplace Experts and Glazing Vision on the remodelling of a contemporary yet classical office building which involved creating an accessible private terrace for staff and clients to enjoy the views of central London, as well as providing the 6th floor with natural daylight.

Utilising a terrace in densely populated areas such as London is a great way to provide a building with more accessible space. Originally the 6th floor offered 2,821 square feet of space, but with the addition of the terrace area, this increased to 3,790 square feet.



Not only does an accessible terrace supply you with extra room, but, in London, the presence of a roof terrace typically adds 12% to the value of a property, rising to as much as 25% in coveted Chelsea. Other benefits of access rooflights include improved natural ventilation, control of interior temperatures, and the result is also beneficial to the aesthetics of a building such as 6 Duke Street.

Barr Gazetas chose Glazing Vision not only due to its vast experience in designing and manufacturing access rooflights, but also for its ‘start to finish’ service. All rooflights are designed and manufactured at its HQ in Diss, and even an installation service is offered via sister company, Glazing Renovations, which provides clients with peace of mind.



Box rooflights are a great way to gain easy access to any roof terrace. Operated at the touch of a button, the user simply climbs the stairs whilst the rooflight is retracting into its open position and walks straight out onto the terrace. The three wall box configuration is one of the most popular and can offer an almost seamless integration into the fabric of your building.

On this particular project, the sliding section when open provides a clear opening of 1927mm on the left side when viewed from the outside and is glazed on the front and top with a built-in fall of three degrees, and mounted to walls at the rear and two sides. The rooflight also includes the optional extras of a proximity detector and a battery back up. The rooflight was crane lifted to the terrace so that installation could be carried out by Glazing Renovations.



Glazing Vision’s Multi-Part Walk On Rooflight has supplied the 6th floor with a large amount of natural daylight which is proven to boost vitamin D, help improve sleep, and can help boost focus. The rooflight also includes Enduro Shield glass protection which provides superior resistance against contamination caused by moisture, hard water, all types of dirt, lime scale, salt spray and pollution, and also helps protect against degradation, staining, corrosion and etching.

The standard glass specification on the Flushglaze Walk On Rooflight is designed to withstand regular foot traffic in domestic applications with uniform loadings of 1.5kN/m² and concentrated loadings of 2.0kN in accordance with EN 1991-1-1-1:2002.



The two rooflights perfectly complement each other and work together to provide a vast amount of natural daylight whilst creating a visually impressive, accessible terrace area.

Pradumn Pamidighantam, Senior Architect, Barr Gazetas, comments: “The Walk On Rooflight was key to providing as much light to the floor below as possible, and the box rooflight was a great feature to the terrace, providing easier access than a ‘hatch’ access product.”

To read about a Glazing Vision Flushglaze Eaves Rooflight featuring in another London project, click here.



Glazing Vision Ltd,
Sawmills Road,
IP22 4RG

01379 658 300

[email protected]


Visit the Glazing Vision website

Leave a Reply

Latest news


DensDeck: The roles roof cover boards play within the airport roof build-up

From additional acoustic performance to increased fire resistance, roof cover boards offer an array of benefits for any mission critical commercial roofing project. Georgia-Pacific, the manufacturer of DensDeck, explains more…

Posted in Acoustics, Noise & Vibration Control, Articles, Building Industry News, Building Products & Structures, Building Services, Building Systems, Facility Management & Building Services, Health & Safety, Posts, Restoration & Refurbishment, Retrofit & Renovation, Roofs, Security and Fire Protection


Troldtekt: Quiet transformation for iconic Boys’ School

Architects Hawkins Brown have completed a transformative redevelopment at the Central Foundation Boys’ School, the 150-year-old top performing comprehensive school in central London – Troldtekt acoustic panels feature there…

Posted in Acoustics, Noise & Vibration Control, Articles, Building Industry News, Building Products & Structures, Building Services, Case Studies, Ceilings, Facility Management & Building Services, Restoration & Refurbishment, Retrofit & Renovation