A vertical sliding unit operating on spring balances. Slim profiles make it suitable for treating traditional sash windows in heritage properties. The sashes contra slide to assist cleaning and a minimum frame to frame gap of 75mm is recommended to allow access to the outer window. 

Recommended maximum frame sizes (mm), subject to balance capacity

Height (mm)  Width (mm)
3000 1400

Balance Capacity

Maximum area dictated by 20kg balance capacity per sash.

Glazing Range

4 mm to 6.8 mm

Frame Finishes

Standard white (HIPCA semi-gloss). Any standard powder paint, wood grain or anodised finish to order.

Gallery

S20 Slimline VS Isometric Series 20 vertical sliding secondary glazing unit - Wiltshire Town Hall Vernon Gardens Bedroom - Series 20 vertical sliding secondary double glazing installation Vertical Sliding Installation Series 20 Vernon Gardens living room St Martins Lane Series 20 installation: Vertical sliding secondary glazing unit Vertical Sliding - Series 20 Shooters Hill Police Station - Secondary Glazing Installation Series 20 vertical sliding Secondary Glazing Unit Radcliffe Infirmary Vertical Sliding Secondary Glazing Installation - Series 20 Queens Club interior lounge Queens Club  - Series 20  vertical sliding secondary glazing installation Vertical Sliding Secondary - Series 20 installed at the  Clockhouse Selectaglaze series 20 vertical slider Chatham Docks Series 20 Arch Hotel - secondary glazing vertical slider Series 20 Vertical Sliding  secondary double glazing Series 20 vertical sliding unit. St Josephs primary school science room Series 20 vertical sliding secondary glazing - Arch Hotel, London Vertical sliding - Series 20 secondary glazing - Selectaglaze bespoke solution Series 20 vertical sliding unit. St Josephs primary school science room Series 20 Arch Hotel - Vertical Sliding Units

Styles available

Vertical sliding standard and arched head secondary glazing styles

Section diagrams

Selectaglaze secondary glazing Series 20 slimline vertical sliding section diagrams

Warmer

INSLUATION (U-VALUE) CALCULATED IN COMBINATION WITH A PRIMARY WINDOW AT BRFC SAMPLE SIZE OF 1430 X 1230MM
GLASS METAL PRIMARY WINDOW TIMBER PRIMARY WINDOW
 4 - 6.8mm  2.90 W/m2K  2.62 W/m2K
 4 - 6.8mm low-E  1.93 W/m2K  1.80 W/m2K

Quieter

NOISE INSULATION MEASURED IN COMBINATION WITH A PRIMARY WINDOW
GLASS 50MM CAVITY 100MM CAVITY 200MM CAVITY
 4 - 6.4mm  39 dB (Rw)  43 dB (Rw)  45 dB (Rw)
 6.8mm  40 dB (Rw)  44 dB (Rw)  46 dB (Rw)

Safer

SECURITY PERFORMANCE (MAXIMUM ACHIEVABLE, CONTACT SELECTAGLAZE FOR SPECIFICATION REQUIREMENTS)
  TEST STANDARD
INTRUDER Non certified second barrier to entry
BLAST ISO 16933 EXV 45
BALLISTIC N/A
FIRE N/A
  • H3 Recessed Finger Pull
  • H17 Cranked D Handle
  • L2 Fitch Catch (Lockable)
  • L4 Plunge Lock
  • L13 Sliding Latch
ITEM FINISHES
H3 Recessed Finger Pull H17 Cranked D Handle  Match frame colour 
L2 Fitch Catch (Lockable)        White Black Gold Polished chrome Brushed steel
L4 Plunge Lock Silver
L13 Sliding Latch Match frame colour

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