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Description

High performance vertical sliding sash windows with slim glazing units, period sightlines and details, in module sizes or made to measure.

General information
Finish

Colour from RAL classic range

Insert requirement.

Colour match

Insert requirement.

Dual finish

Insert requirement.

Three coats of spray applied micro-porous white paint (RAL 9003)

Uniclass 2015 Wood window units (Pr_30_59_98_96)
Specification data
Product Reference

Classic Spring Sash Window

Timber

Engineered Accoya

Recommended for coastal areas.

Engineered clear grade knot free Siberian Larch frame and sashes with Accoya internal/ external liners and midrail with hardwood Sapele sill

As standard.

Engineered Hardwood Red Grandis

Mullion sections

78 mm

98 mm

Sill section (height x depth)

68 x 163 mm

90 x 163 mm

Sill projection

35 mm

60 mm

85 mm

110 mm

140 mm

90 x 163 mm sill section required.

Flush

Horns

Not required

As drawing

Staff bead

Click fit removable staff bead

Timber glued and pinned

External liner moulding:

Bead mould

Ovolo mould

Not required

Horns

Not required

Required

Finish

Colour from RAL classic range

Insert requirement.

Colour match

Insert requirement.

Dual finish

Insert requirement.

Three coats of spray applied micro-porous white paint (RAL 9003)

Windowboard groove

Required

Not required

Frame profile moulding

Lambs Tongue

Ovolo

Square

Glazing bars and sash internal perimeter profile

24 mm Lambs Tongue

24 mm Ovolo

Glass units and whole product U-values/ G-values

14 mm double glass unit comprising 4 mm Tough / 6 mm Krypton / 4 mm Tough Planitherm One

Whole window U-value: 1.7 W/m²K / G-value: 0.52.

14.8 mm double glazed unit comprising 6.8 mm laminated / 4 mm Krypton / 4 mm Toughened Planitherm One

Whole window U-value: 2.0 Wm²K / G-value: 0.52.

Perimeter spacer bar

White aluminium

14 mm glass units only.

Silver/black aluminium

14 and 14.8 mm glass units.

Ironmongery

Antique brass

Sash catch, sash lifts, sash lock, sash pulley.

Brass

Sash catch, sash lifts, sash lock, sash pulley.

Croft ironmongery with bespoke finish

Insert requirement.

Oil rubbed bronze

Sash catch, sash lifts, sash lock, sash pulley.

Polished chrome

Sash catch, sash lifts, sash lock, sash pulley.

Satin chrome

Sash catch, sash lifts, sash lock, sash pulley.

Satin nickle

Sash catch, sash lifts, sash lock, sash pulley.

Trickle ventilation

Not required

Concealed through frame head trickle ventilator (reduced EA)

Trickle ventilator (4600 mm EA)

Surface mounted canopy.

Child restrictor

Not required

Required

Standard product features

Timber:

Engineered clear grade knot free timber, all FSC certified. Chain of Custody can be specified.

Frame section (liner x depth):

110 x 160 mm.

Sash section:

64 x 57 mm (top/ side rail x depth) with 94 mm bottom rail and 43 mm midrail.

Finish:

Three coat spray applied factory finish using water based micro-porous paint/ stain.

Weatherseal:

Schlegel Aquamac AQ109 & Sashglide® acoustic weatherpile.

Glazing:

Externally putty glazed in accordance with Glass and Glazing Federation requirements.

Parting bead:

Click fit removable parting bead.

Operation:

Counter balanced with spring balances.

Performance

  • Air permeability: EN 1026:2000 Class 3.
  • Water tightness: EN 1027:2000 Class 7A.
  • Wind resistance: EN 12211:2000 Class C5.

Product Options

Type:

Include specific frame dimensions, configuration and glazing bar designs with specification. Provide drawings if available.

Feature windows:

Shaped or curved on plan frames can be made to Mumford and Wood sections and details.

Literature
Third party certifications
  • BS EN 644
  • BS EN 6375 : Parts 1, 2, 3