Bristol Glazing A-Rated Windows
Bristol Glazing choose Window Profiles
Bristol Glazing Bespoke Conservatories
Bristol Glazing Makes life easy attach a photo and provide measurements
Home Secondary Glazing Hinged Units

Hinged Units

PDF Print E-mail


Bristol Glazing Hinged Units


The Product:


When it comes to providing an unobtrusive secondary glazing system, the hinged unit provides the most appropriate solution, since there are no transoms or mullions to spoil the view. The reduction in noise, and improvement in thermal insulation, greatly enhances both the living and working environments.





How it works:


The hinged unit can be manufactured in two main types. The single hinged unit opens on a restricting friction stay. Where the application is on a larger scale, the friction stay is replaced with a butt hinge. We have developed and rigorously tested a variety of butt hinges for differing leaf weights. The double hinged unit has been primarily designed to fit in front of larger Windows or French Doors, utilising the same range of hinges.


Hinged Elevations:




Technical Specifications:


Hardwood Sub-Frames SIZES

21mm x 45mm Standard

21mm x 62mm Reveal fix

30mm x 30mm Bay Adaptor


Hardwood or PVCU Trims SIZES

6mm x 21mm S.B.N.

6mm x 27mm S.B.N.

6mm x 37mm S.B.N.

6mm x 44mm S.B.N.

6mm x 55mm S.B.N.

6mm x 75mm S.B.N.

6mm x 15mm D.B.N.

6mm x 33mm D.B.N.

6mm x 43mm D.B.N.


Aluminium Aluminum alloy extruded to exclusive designs from 6063T6 alloy to BS1474.



Natural anodising to AA5 - BS 3987 Polyester Powder to BS 6496. Stock finishes in EP white/Van Dyke brown. High gloss finish. 60 microns. OtherRAL colours upon request.



In accordance with BS 6206. Choices of 4mm, 6mm Clear Float or toughened, 6.4mm, 6.8mm, 7.5mm Laminates and 6.4mm, 6.8mm, 7.0mm Acoustic Glass.


Maximum Sizes WIDTH x HEIGHT with 4mm glass

1200mm x 2130mm side hung

1220mm x 2130mm top hung


An up-rated specification can be obtained upon application to accommodate larger sizes.


Weather Pile

Polypropylene draught strip to BS 7386.



All gaskets extruded to BS 2782, standard colour black, white 4mm gasket also available.



Please contact for info


Optional Extras

Carriage Lock

Budget Lock

Restricted Opening Locks

Arched Heads

Gothic Heads

Stacking Units


Can be coupled with other products in the range using an exclusive range of interlocks.

Designed by DouglasDataSystems 2011