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NBS Source

Conservation Box Sash Timber Window

Verified by manufacturer 2 months ago

Mumford & Wood Ltd Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

High-performance timber/ wooden vertical sliding Box Sash Windows with period sightlines and details.

Jump to:
+44 (0)1621 818155 www.mumfordwood.com

Application

Suitable for any residential, commercial properties and conservation areas.

Description

The modern day version of the Vertical Sliding Box Sash Window otherwise known as the double hung sliding sash. This vertical sliding sash uses cords, weights and pulleys to counterbalance the Sashes traditionally with the weights housed in a ‘box’.


Our Conservation Box Sash Window uses cords, weights and pulleys to counter balance the sashes in the traditional way. Typically a Box Sash Window would be set back in a ‘rebated reveal’ construction so that the box is mostly hidden by the external brick or stone although it can also be seen positioned close to the face of the brickwork with the box on show and dressed with an architrave.

General information

Color

Colours from the RAL classic range, colour matching and stains also available.

White

Finish

Painted

Stained

Material

Wood

Timber

Shape

Rectangle

Width

Bespoke

Height

Bespoke

WarrantyDescription

Timber: 30; Glazing, ironmongery and seals: 10; Paint finish: 10; Stain finish: 5.

-

Uniclass

Pr_30_59_98_96 Wood window unitsPrimary

CAWS

L10/10 Wood windows

L10/210 Wood windows

Product range

Conservation Range

Specification data - Wood window units

Dimensions and configurations

Insert requirements or refer to a drawing or schedule.

-

Product performance

-

Weather performance

-

Air permeability

To EN 1026:2000, Class 4.

Watertightness

To EN 1027:2000, Class 7A.

Resistance to wind load

To EN 12211:2000, Class C5.

Safety

-

Security level

PAS24:2016.

Environmental

-

Acoustic performance rating

Up to 42dB Rw (39dB Rw+Ctr) subject to chosen glass specification.

Thermal

-

Whole window U-value

1.4 W/m2K or better subject to chosen glass specification.

Frame

-

Wood species

Engineered Redwood frame and sashes with Red Grandis internal/external liners and meeting rails with hardwood Sapele cill.

Engineered Hardwood Red Grandis.

Accoya.

Chain of custody

FSC.

Finish as delivered

Three coats of spray applied micro-porous paint.

Three coats of spray applied micro-porous stain.

Preservative treatment to wood components

Teknol Aqua 1410.

Ventilator

Not required.

Concealed through frame head trickle ventilator (reduced EA).

Trickle ventilator (4600 mm EA) - Surface mounted canopy.

Frame horns

Sash horns not required.

Sash horns required.

Glazing or infill

-

Requirements

Internally dry glazed and vented with glazing tapes in accordance with Glass and Glazing Federation requirements.

24 mm Double glass unit comprising 4 mm Tough / 16 mm Argon / 4 mm Tough Low E 1.2.

24 mm Double glass unit comprising 4 mm Tough / 16 mm Argon / 4 mm Tough Low E 1.0.

24.8 mm Acoustic Double glazed unit comprising 6.8 mm Sound Control Laminate / 14 mm Argon/ 4 mm Tough Low E 1.2.

24.8 mm Acoustic Double glazed unit comprising 8.8 mm Sound Control Laminate / 10 mm Krypton/ 6 mm Tough Low E 1.0.

27.6 mm Enhanced Acoustic Double glass unit comprising 10.8 mm Sound Control Laminate / 10 mm Krypton / 6.8 mm Sound Control Laminate Low E 1.0.

14 mm Double glass unit comprising 4 mm Tough / 6 mm Krypton / 4 mm Tough Low E 1.0.

16.8 mm Double glass unit comprising 6.8 mm Laminate / 6 mm Krypton / 4 mm Tough Low E 1.0.

Single glass 4 mm Toughened.

Single glass 6 mm Toughened.

Single Glass 6.8 mm Sound Control Laminate.

Single Glass 4.5 mm Goetheglas Restoration Glass.

Hardware

Polished brass sash catch.

Polished brass sash lifts.

Polished brass sash lock.

Polished brass sash pulley.

Polished chrome sash catch.

Polished chrome sash lifts.

Polished chrome sash lock.

Polished chrome sash pulley.

Satin chrome sash catch.

Satin chrome sash lifts.

Satin chrome sash lock.

Satin chrome sash pulley.

Antique brass sash catch.

Antique brass sash lifts.

Antique brass sash lock.

Antique brass sash pulley.

Oil rubbed bronze sash catch.

Oil rubbed bronze sash lifts.

Oil rubbed bronze sash lock.

Oil rubbed bronze sash pulley.

Satin nickel sash catch.

Satin nickel sash lifts.

Satin nickel sash lock.

Satin nickel sash pulley.

Aged brass sash catch.

Aged brass sash lifts.

Aged brass sash lock.

Aged brass sash pulley.

Satin brass sash catch.

Satin brass sash lifts.

Satin brass sash lock.

Satin brass sash pulley.

Light antique brass sash catch.

Light antique brass sash lifts.

Light antique brass sash lock.

Light antique brass sash pulley.

Other.

Alternatives available in various finishes from the likes of Croft, consult manufacturer for details.

Operation

-

Type

Manual.

Pre stretched nylon cords with sash weights and heavy duty pulley wheels.

Colour

White (RAL 9003).

Standard.

Colour from RAL classic range.

Insert requirement.

Colour match.

Insert requirement.

Dual finish.

Insert requirement.

Frame section

110 x 160 mm.

Liner x depth.

Sash

Sash section (top/ side rail x depth).

64 x 57 mm with 94 mm bottom rail and 43 mm midrail.

57 x 57 mm with 94 mm bottom rail and 43 mm midrail.

Mullion section

Not required.

98 mm (up and over cord next to fixed sash).

162 mm.

220 mm.

Sill section (h x d)

68 x 163 mm.

90 x 163 mm.

Sill projection

35 mm.

60 mm.

85 mm.

110 mm.

125 mm.

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Horns

Cill horns not required.

Cill horns required.

External liner moulding

Not required.

Bead mould.

Ovolo mould.

Lambs tongue mould.

Windowboard groove

Not required.

Required.

Internal Glazing Bars and/or Perimeter Bead

18 mm Fine Lambs Tongue.

18 mm Ovolo.

18 mm Square.

22 mm Lambs Tongue.

22 mm Ovolo.

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External Glazing Bars

18 mm chamfered putty bar.

22 mm chamfered putty bar.

28 mm chamfered putty bar.

6 mm ‘antiqued’ lead to internal and external faces of the outer pane.

9 mm ‘antiqued’ lead to internal and external faces of the outer pane.

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Perimeter/Integral spacer bar

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

24 and 24.8 glazing.

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

24 and 24.8 glazing.

Black aluminium perimeter spacer.

14 and 14.8 glazing.

White aluminium perimeter spacer.

14 and 14.8 glazing.

Beading

Internal cassette beading.

Child restrictor

Not required.

Required.

Weather seal (factory applied)

Schlegel Aquamac AQ109.

Environmental information

Country of product manufacture

United Kingdom

Recyclability

Refer to manufacturer website for product end of life instructions.

-

Digital objects

Platform Compatible Version Certified to
IFC

IFC2X3

2

1.3
Revit

Revit 2015

2

1.3
Download now from NBS National BIM Library

Literature

Site instruction, aftercare manual & warranty

Site instruction, aftercare manual & warranty

Third party certifications

  • Timber FSC Certified
  • ISO 9001
  • ISO 14001
  • British Woodworking Federation Member
  • CE Marked

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