NBS Source
Traditional Box Sash Windows - Single

Application

Suitable for non-listed buildings and contemporary developments.

Description

Timber sash windows which embrace the all style and function of traditional box sash windows, yet are enhanced with modern construction and materials.


Features and benefits:

  • Smooth-running and robust, they feature a classic weight-and-pulley mechanism.
  • Suitable for non-listed buildings and contemporary developments, the sash windows are available in a selection of hardwood and softwood frame finishes, along with RAL colours.
  • With the option of safety glass, obscured glass, acoustic glass or solar control glass, the wooden double-glazed sash windows can be tailored for every situation.
  • Bespoke windows and doors are available; consult manufacturer for details.

General information

Color

Colour from RAL classic range - standard, dual finish or stain - optional.

-

Finish

Available in dual finish, RAL classic range and stain. Insert requirements.

-

Material

Timber

Wood

Shape

Rectangle

Uniclass

Pr_30_59_98_96 Wood window unitsPrimary

CAWS

L10/10 Wood windows

L10/210 Wood windows

Specification data - Wood window units Enhanced data

Dimensions and configurations

As drawing.

Insert reference.

As schedule.

Insert reference.

Product performance

-

Weather performance

-

UK exposure category

The window is fully weather sealed to BS EN 6375-1.

Air permeability

To BS EN 1026, Class 4.

Watertightness

To EN 1027, 4A.

Resistance to wind load

To EN 1221, Class C4.

Thermal

-

Whole window U-value

To BS EN ISO 10077-1.

≥1.6 W/m²K.

Frame

-

Profile

100 x 160 mm (lining width x frame depth), manufactured using mortise and tenon joints, glued and mechanically fixed.

Wood species

Hardwood.

Softwood.

Ventilator

Not required.

Concealed through frame head trickle ventilator.

Concealed through frame head trickle ventilator. 1700 mm², 4400 mm² or 5000 mm² air flow dependent on frame width.

Frame horns

Solid feature horns to top sashes are included as standard.

Not required.

Type H1.

Type H2.

Type H3.

Type H4.

Type H5.

Type H6.

Fixing features

A lockable fitch fastener and two finger pulls to the bottom sash.

Sill projection

35 mm.

50 mm.

60 mm.

70 mm.

80 mm.

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Windowboard groove

Required.

Not required.

Internal Glazing Bars and/or Perimeter Bead

18 mm lambs tongue type 2.

18 mm ovolo profile type 2.

22 mm lambs tongue type 1.

22 mm ovolo profile type 1.

External Glazing Bars

18 mm chamfered putty bar.

22 mm chamfered putty bar.

Glass units

24 mm double glass unit.

4 mm tough/ 16 mm argon/ 4 mm tough low-E.

24.8 mm sound control double glazed unit.

6.8 mm sound control laminated/ 14 mm argon/ 4 mm tough low-E.

Special order.

Insert requirement, safety, obscured, acoustic or solar control glass options available.

Perimeter/Integral spacer bar

Black warm edge perimeter spacer and integral glazing bars within unit cavity.

Matt chrome warm edge perimeter spacer and integral glazing bars within unit cavity.

White warm edge perimeter spacer and integral glazing bars within unit cavity.

Ironmongery

Antique brass sash fitch fastener, sash lifts, sash pulleys.

Brass sash fitch fastener, sash lifts, sash pulleys.

Oil rubbed bronze sash fitch fastener, sash lifts, sash pulleys.

Polished chrome sash fitch fastener, sash lifts, sash pulleys.

Satin chrome sash fitch fastener, sash lifts, sash pulleys.

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Child restrictor

Not required.

Angel lock.

Standard.

Traditional sash stop.

Sash

Sashes are hung on cords or chains, operating over pulleys and counter balanced with lead weights.

39 x 55 mm top rail and stiles, 90 x 55 mm bottom rail, 45 x 55 mm meeting rail.

Mullion/ transom

200 mm wide (130 mm for triple sash with fixed outer sash).

Sill

Solid hardwood.

54 x 160 mm.

Staff bead

Timber.

MoistureContent

12–19% (wood).

Glazing beads

Internally beaded.

Applied finish

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

Dual finish

Insert requirements.

RAL classic range

Insert requirements.

Stain.

Insert requirements.

Wood species

Engineered Accoya.

Engineered European oak.

Engineered hardwood.

Engineered redwood.

Standard.

Digital objects

Platform Compatible Version Certified to
Revit

Revit 2017

1

2.1
IFC
-

1

2.1
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