Frameless Structural Glass Specialist Installs Kestrel ‘Invisible’ Flush Glazed Mirror Door

Contemporary Glass Structures a company which specialise in frameless structural glass products were selected to manufacture and install a flush glazed mirror door for a 4th-floor terrace glass façade as part of extensive renovations of a commercial office building in the heart of Manchester’s professional district.

Andy Howells of Contemporary commented “The client wanted the door to almost disappear within the glass façade externally. The contractor’s curtain wall supplier could only do a standard framed door, not what the architect and client wanted.” Drawing on their experience in the fenestration industry Contemporary offered a bespoke solution and specified the Kestrel Aluminium residential door system as the base for the project.

The geometry of the door hinges gave the best external glass to glass gap at the hinge positionwithout the glass on the door leaf clashing with the glass which is silicone bonded to the outside of the outer frame. Also, the slim minimalistic design of the hinges worked well with the aesthetics of the design, meaning they sat in line or just behind the outer glass surface line.

The robust sturdy nature of the PAS 24 accredited Kestrel door with its double mechanical spring cleats to each mitre joint also gave the team the confidence to attempt this design for this size of door which at 1200mm wide x 2600mm high weighed nearly 100 kg.

Contemporary installed a door closer to stop the outwardly opening door from catching in the windand opening too far (past 110°) which would cause the glass to clash and destruct. A stainless-steel boss was machined to space the external handle mounting face away from the door by 14mm to allow for the thickness of the external stepped glass and the silicone bond.

The door frame was powder coated with a special, not readily available TIGER Drylac® colour. The glass specified was Guardian Glass HD20 “made to order” product. Contemporary worked closely with their specialist suppliers to meet the specification and match the building’s glass façade, whilst completing the installation within the construction schedule. Andy Howells commented, “the client is delighted with the final result, it has been a challenging but well worthwhile project.”

Share this article

Login to post comments

About us

Future Constructor & Architect is a specification platform for architects and building contractors, which focuses on top-end domestic and commercial developments.

As well as timely industry comment and legislation updates, the magazine covers recent projects and reviews the latest sustainable building products on the market. Subscribe here.

Privacy policy

Latest updates


Sign up below to receive monthly construction, architecture and product updates from FC&A via email: