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Slimline, tilt-in vertical sliding (VS) secondary glazing. Specialist framing system allowing individual panes to tilt inwards on safety stays to assist with cleaning. Particularly suited to treating traditional sash windows with offset meeting stiles.

Allows close fitting to the existing windows. Suitable for listed buildings where the primary glazing cannot be changed. It is a reversible adaptation, so generally accepted by heritage agencies.

Will reduce heat loss by up to 50% using standard glass and up to 65% with a thermally efficient glass (low emissivity). The system is also fitted with a mixture of high performance brush and compression seals that will minimize drafts and ensure greater comfort near the window.


  • Acoustic: Tested in accordance with BS EN ISO 140-3: 1995 for acoustic performance: between 40 and 47 dB can be achieved.
  • Thermal: U-values as low as 1.81 W/m²K (timber primary window and low-E glass in secondary glazing).

General information

As drawing

Insert details.

As schedule

Insert details.


Twin compression seals, concealed fixings, can be coupled to other units with colour matched aluminium alloy transom/ mullion, adjustable spring balances


Extruded aluminium alloy 6063-T6


Ten year manufacturers guarantee subject to Selectaglaze terms and conditions. Five year on spring and spiral balances

Uniclass 2015
Putty-fronted single glazing systems (Ss_25_60_35_65)Primary
Specification data - Putty-fronted single glazing systems
Product Reference

Series 60 tilt-in vertical sliding (VS)


As primary window designs/ sightlines


As drawing

Insert details.

As schedule

Insert details.

Acoustic performance

Insert required dB level.

Thermal performance

See 'Options' below and insert requirements.

Frame -
Frame finish

Anodizing, Analok bronze AA25

Anodizing, Analok silver AA10

Polyester powder-coating, HIPCA 9910 semi-gloss white

Polyester powder-coating, RAL

Insert RAL colour.

Wood grain effect

Gloss level

Not required

High gloss



Glazing -


Laminated, low-E

Toughened, low-E


4 mm

6 mm

6.4 mm

6.8 mm

Glazing gasket



Ironmongery -

H1 Integral finger pull, colour matched to frame

H17 Cranked D handle, colour matched to frame


Not required

L2 fitch catch (lockable), black

L2 fitch catch (lockable), brushed steel

L2 fitch catch (lockable), gold

L2 fitch catch (lockable), polished chrome

L2 fitch catch (lockable), white

Trickle ventilators

Not required

Over the frame acoustic ventilator

Over the frame standard ventilator

Acoustic reveal linings

Not required

Vinyl faced acoustic foam

Standard product features


- Material:

Extruded aluminium alloy 6063-T6.

- Style:


Product Options


- Minimum (h x w):

400 x 400 mm.

- Maximum (h x w):

  • Single pane: 1500 x 1500 mm.
  • Two panes: 3000 x 1500 mm.

Maximum sash area subject to 20 kg weight capacity limit. Sash height to width ratio should not normally exceed 1:3.

Thermal performance:

Values of <2.9 W/m²K available; consult manufacturer for details.

Digital objects
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