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Sash Window - The Chatsworth - Timber Sliding Sash

Verified by manufacturer 3 months ago

Chatsworth Spiral Balance Engineered Redwood Softwood with Accoya Cill

Gowercroft Joinery Limited Variant:
Third party certifications:
  • British Woodworking Federation

    British Woodworking Federation

    Certificate type

  • UKAS

    UKAS

    Certificate type

  • BRE Certificate

    BRE Certificate

    Certificate type

Secure timber sliding sash windows with a U-value of 1.2 W/m²K in double glazed.

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BOS
+44 (0)1773 300510 Website

Application

Suitable for most applications.


Particularly suitable for unlisted properties where replacement windows are required, or for new build projects which need to achieve all of the relevant building regulations but the customer does not require Passiv-Haus level performance.

Description

Chatsworth timber sliding sash windows combine low maintenance, longevity, and excellent draught-proofing, with a classic appearance. For additional authenticity, the range is available with either spiral balances or a traditional weights and pulleys system.


They provide architects and specifiers with a reliable and visually appealing solution for unlisted properties requiring replacement windows or new build projects adhering to building regulations. With excellent value for money and wide-ranging suitability, these windows are a versatile choice for most properties.


  • Patented SashSealer technology delivers the only Class 4 Air Permeability, traditional sliding sash window on the market. Weights and pulley window has a proprietary pocket seal to reduce draughts through the sash pulleys.
  • Fully concealed trickle ventilation through the head of the frame is invisible on the internal or external face of the product.
  • Traditional horn detailing to the top sash as standard. Options to have variation on the horn detail, or to add a horn to the bottom sash. External staff bead detail on the outer lining for a traditional appearance.
  • All traditional shapes and sizes are available including curved heads, curved top rail of top sash and double or triple coupled sashes.
  • Traditional ironmongery is included with a range of finishes. This includes Angel Sash limiters and recessed finger pulls as standard.
  • Spiral balance system includes balance covers as standard to avoid ugly exposed plastic balancer.
  • Weights and pulley sashes include articulated lead and concealed access panels for easy maintenance and repair.
  • Product exceeded destructive testing to Part Q standards with no amendments or upgrades.
  • Available in double glazed with a U-value of below 1.2 W/m²K and triple glazed with a U-value of 0.87W/m²K.


Features and benefits:

  • U-values of 1.2 W/m²K in double glazing.
  • U-values of 0.87 W/m²K in triple glazing.
  • Class 4 air permeability:
  • Patented gasket system on mid-rail.
  • Integrated concealed gasket system on sash pulleys.
  • Fully concealed trickle ventilation.
  • Exceeds Part Q Standards.
  • Part L Compliant.
  • Part Q Compliant.

 

Guarantees:

  • 10 year no maintenance paint warranty.
  • 5–8 year no maintenance stain warranty.
  • 10 year warranty on workmanship and materials.
  • 60+ year expected service life.

General information

Color

Clear

Beige

Black

Blue

Bronze

Show more

Finish

Painted

Stained

Material

Wood

Glass

Shape

Rectangle

Square

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Pr_30_59_98_96 Wood window unitsPrimary

CAWS

L10/10 Wood windows

L10/210 Wood windows

Product range

Classic

Specification data - Wood window units

Standard

To EN 14351.

Dimensions and configurations

-

Manufacturer guidance

Consult manufacturer for details and insert requirements.

Product performance

-

Fire performance

-

Fire egress

Yes.

Weather performance

-

UK exposure category

To BS 6375-1, 1600 Pa.

Air permeability

To BS 6375-1, Class 4.

Watertightness

To BS 6375-1, Class A5.

Resistance to wind load

To BS 6375-1, Class C3.

Durability

-

Operation and strength characteristics

To BS 6375-2.

Environmental

-

Background ventilation

Yes.

Acoustic performance rating

29 dB.

Guidance for specification option:

  • Standard insulating glass unit, 4 mm/ 20 mm/ 4mm.
  • A range of acoustic, obscure, and solar control insulating glass units are also available; consult manufacturer.

Thermal

-

Whole window U-value

1.2 W/m²K.

Guidance for specification option:

Double glazed.

Frame

-

Standard

To BS EN 942.

Profile

Lambs Tongue beading and bar profiles.

Guidance for specification option:

Bead mould to internal and external outer linings.

Wood species

Engineered Redwood Softwood with Accoya Cill.

Chain of custody

FSC.

Appearance class

For opaque finishing: to BS EN 942, J10 for glazing beads, drip mouldings and the like. J40 or better for all other members.

Finish as delivered

Factory applied Sirca paint, submerged prime coat, sprayed top coats.

Manufacturer guidance

Three coats of factory applied Sirca paint, one coat submerged prime coat, two coats sprayed top coats. Any colour available, finish to 30% sheen.

Ventilator

Yale SlotVent 2500EA.

Yale SlotVent 4000EA.

Yale SlotVent 5000EA.

Manufacturer guidance

Fully concealed externally.

Available in white, brown, or paint matched to frame.

Frame horns

No horn, top sash.

75 mm horn, top sash.

No horn, bottom sash.

75 mm horn, bottom sash.

Glazing or infill

-

Standard

Relevant parts of BS EN 1279.

Requirements

4 mm Low E One internal glass, 20 mm Argon cavity, 4 mm clear external glass.

Guidance for specification option:

Toughened to suit.


4 mm Low E One internal glass, 20 mm Argon cavity, 6.8 mm laminate external glass for P1A/Part Q.

Guidance for specification option:

Toughened to suit. Bonded bars and applied glazing bars as necessary.

Hardware

Polished Brass - Two Globe fitch catch, two sash lifts, two angel locks with stops.

Satin Chrome - Two Globe fitch catch, two sash lifts, two angel locks with stops.

Brushed Chrome - Two Globe fitch catch, two sash lifts, two angel locks with stops.

Aged Brass - Two Globe fitch catch, two sash lifts, two angel locks with stops.

Black - Two Globe fitch catch, two sash lifts, two angel locks with stops.

Other.

Guidance for specification option:

Various heritage and bespoke type items available upon request, but not compliant with Part Q. Consult manufacturer and insert requirements.

Operation

-

Type

Manual, spiral balanced with concealed balances.

Execution

-

Manufacturer guidance

Fixing of wood frames.

Weather seal (factory applied)

Double gasketing system included as standard.

Glazing bars

22 mm Lambs Tongue in grid, mechanically fixed to sash prior to spray.

Guidance for specification option:

Arched, gothic, marginal, and bespoke patterns available. Insert requirements.

Sustainability data

Contains Red List materials

No

Country of material origin

New Zealand

Country of product manufacture

United Kingdom

Material

Wood

Glass

Manufacturing plant location

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

-48.82 kg CO₂ eq/kg

Self declared

Manufacturer guidance

Embodied carbon A1-A3 (cradle to gate) as defined in BS EN 15804: Negative 61.03 kg CO₂ eq/kg for Hardwood window industry standard window size


Embodied carbon A1-A5 (cradle to install) as defined in BS EN 15804: Negative 48.82 kg CO₂ eq/kg for Hardwood window industry standard window size


Embodied carbon A1-D (cradle to grave) as defined in BS EN 15804: Negative 7,458.00 kg CO₂ eq/kg for Hardwood window industry standard window size


Recyclability

100%

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

5 %

Expected Life

80 year

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
-

1

IFC
-

1

Third party certifications

British Woodworking Federation

British Woodworking Federation

British Woodworking Federation

UKAS

UKAS

Enhanced Security Performance Certificate

BRE Certificate

BRE Certificate

EPD COO3.1 Chatsworth

Literature

Accoya Additional Warranty

Accoya Additional Warranty

Accoya® Brochure

Accoya® Brochure

Gowercroft Domestic Guarantee

Gowercroft Domestic Guarantee

Gowercroft Installation Manual

Gowercroft Installation Manual

Maintenance Manual

Maintenance Manual

Window Life Cycle Assessment

Window Life Cycle Assessment

FENSA Certificate

FENSA Certificate

Chatsworth Triple Glazed Thermal Simulation Report

Chatsworth Triple Glazed Thermal Simulation Report

Chatsworth Double Glazed Thermal Simulation Report

Chatsworth Double Glazed Thermal Simulation Report

Yale SlotVent Tricke Vent Brochure

Yale SlotVent Tricke Vent Brochure

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Canal Side Cottages: Restoring History with Traditional Timber Windows & Doors

Canal Side Cottages: Restoring History with Traditional Timber Windows & Doors

North Acre: A Stunning Barn Conversion

North Acre: A Stunning Barn Conversion

Timber Floating Corner Bifold Doors

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Old Rectory, Clifton Village, Nottinghamshire - Timber windows and doors

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