A fully independent window system retrofitted on the room side of a primary window
Secondary glazing is used to enhance the thermal, acoustic and security performance of existing windows. As a reversible adaptation it is generally acceptable for Listed buildings.
Effective secondary glazing relies on good seals to maximise the benefits, so each window opening is measured to close tolerance and bespoke frames and timber grounds produced to achieve the closest fit.
The anatomy of Selectaglaze secondary glazing
Specialist framingThe framing sections are made to exclusive Selectaglaze designs using aluminium alloy. This strong, lightweight material is extruded to form the slender, complex shapes needed to accommodate seals, fixings and specialist hardware.FormingSelected sections can be curved and shaped to match the primary window. For more details see the arched and shaped windows section of the website.FinishesPolyester powder paint in a wide range of RAL colours in flat, metallic or textured finishes including wood-grain effect.
The standard colour is HIPCA white semi-gloss.
Anodised in natural Silver, Analok Bronze or Black, and a limited range of other colours.
Both paint and anodized finishes are very durable with long life expectancy and minimal maintenance.High performance gasketsGlass is held in position by PVC nitrile gaskets, available in white or black, or specialist bonding tapes in systems that offer high levels of security.Durable weathersealsSliding units are fitted with twin silicone-treated, grey polypropylene pile seals. Hinging units are fitted with high performance Q-Lon seals (in white or black). This material has excellent memory and will retain its original shape for years, maintaining optimum sealing and acoustic performance.Glass and glazingGlazing and safety is covered by BS 6262-4:2018 ‘Glazing for buildings. Code of practice for safety related to human impact’ and Approved Document K, Requirement K2 – Protection from falling, Requirement K4 – Protection against impact with glazing.
Glass thickness varies from 4mm 28mm depending on the product and application.
Other glazing applications include: Enhanced Thermal
Low emissivity glass (hardcoat)
Sealed glass unit (various specifications)
Enhanced Acoustic
Acoustic laminates
Safety
Toughened
Laminated
Solar control
Body tinted
Privacy
Patterned
Opaque laminate
Screen printed or etched
Switchable glass
Sealed unit with integral blind
Clarity
Anti-reflective glass
Low iron glass
Security
Anti-bandit laminates
Polycarbonate sheet
Glass/polycarbonate composites
Grounds and sub-framesCustom timber grounds can accommodate splayed or out of shape openings. All timber grounds and sub-frames are made from certified timber products.Bespoke ironmongeryThere is a range of handles, finger pulls and locks which are specific to each product. Please check the ironmongery tab on each product page to see the available options.SealantsTimber grounds, sub-frames and aluminium frames are bedded on an acrylic sealant to provide a lasting perimeter seal.CavityThe cavity is the distance between the existing window and the new secondary glazing. This plays an important role when noise is an issue, the bigger the cavity the higher the insulation levels.
Secondary glazing to suit any design, shape or style of window
Whether the primary window is square or not, there will be something in the standard products range or the specialist shaped and curved treatments, that would suit the opening, match the sightlines and provide a discreet treatment.
Product sustainability – recycling and waste
Both main materials are carefully managed and extensively recycled.
Aluminium Optimized cutting programmes reduce usage, and all cutting waste is recycled. An estimated 90% of aluminium used in buildings is recycled at ‘end of life’
Glass Optimized cutting programmes minimise waste. Broken glass (cullet) is recycled in a number of ways, some being turned into new glass and some into alternative materials such as road surfacing
Find out more about product sustainability here
Safer
Warmer
Quieter
Discover how
secondary glazing
will improve your
building and
well-being
A wealth of benefits
Never miss one bit!
Subscribe to our monthly Newsletter to receive updates on our news and CPD initiatives.
Thank you!
Thanks for joining our mailing list.
Our use of cookies
We use cookies to provide you with a great experience and to help our website run effectively. You can find out more and change your cookie preferences anytime on our Cookie Policy page.