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Heritage Flush Casement Window - The Richmond - Timber Heritage Window

Verified by manufacturer 2 months ago

Gowercroft Joinery Limited Third party certifications:
  • FSC

    FSC

    Certificate type

  • British Woodworking Federation

    British Woodworking Federation

    Certificate type

  • UKAS

    UKAS

    Certificate type

  • Made in Britain

    Made in Britain

    Certificate type

  • BRE Certificate

    BRE Certificate

    Certificate type

Timber Heritage Flush Casement Window - with U-value of 1.2 W/m²K. Wooden heritage windows for listed buildings and those in conservation areas.

Jump to:
BOS
+44 (0)1773 300510 Website

Application

For listed properties or those in conservation areas.

Description

Heritage Windows

Gowercroft heritage flush casement windows feature traditional design elements combined with modern materials and technology. With high-performance characteristics, these windows come with a comprehensive 10-year guarantee and provide excellent energy efficiency comparable to modern double-glazed products.


Crafted from Accoya® timber, known for its durability and energy efficiency, Gowercroft heritage flush casement windows seamlessly blend classic aesthetics with contemporary advancements. 


The vacuum cavity glazing ensures U-values comparable to modern double glazing while maintaining a slim profile of only 8.3 mm. 


The glazing is toughened for enhanced safety and security, providing optimal clarity without double reflection, making it suitable for conservation areas. 


The frame design includes discreetly concealed gaskets, offering a clean and authentic appearance.


The heritage windows feature traditional butt hinges, concealed espagnolette locking, and a wide selection of handle styles and finishes to accommodate various design preferences. The slender 22 mm glazing bars and slim window profile create an elegant look that visually narrows the sections. The external bar design faithfully replicates the traditional putty pointing appearance.


Supplied with a comprehensive 10-year guarantee and are eligible for TimbaCare.


Features and Benefits:

  • U-Value of 1.2 W/m²K.
  • Toughened vacuum glazing.
  • Manufactured from Accoya® timber.
  • Class 4 air permeability.
  • Class 4 weatherproofing.
  • Building Regulations Approved Document L Compliant.


Guarantees:

  • 10-year no maintenance paint warranty.
  • 5–8 year no maintenance stain warranty.
  • 10-year warranty on workmanship and materials.
  • Expected service life of over 60 years.

General information

Color

Beige

Black

Blue

Bronze

Brown

Show more

Finish

Painted

Stained

Material

Wood

Shape

Circle

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

Heritage

Specification data - Wood window units

Standard

To EN 14351.

Product performance

-

Fire performance

-

Fire egress

Yes.

Durability

-

Operation and strength characteristics

To BS 6375-2.

Environmental

-

Background ventilation

Yes.

Acoustic performance rating

39 dB.

Guidance for specification option:

Vacuum insulating glass unit, 4 mm/ 0.3 mm/ 4 mm.

Manufacturer guidance

 A range of acoustic, obscure, and solar control insulating glass units are also available; consult manufacturer.

Thermal

-

Whole window U-value

1.20 W/m²K, vacuum double glazed.

Frame

-

Standard

To BS EN 942.

Profile

Heritage extended beading and bar profiles beading and bar profiles.

Wood species

Accoya.

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

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

Frame horns

32 mm projection in Accoya. Tongue fixing into 92 mm back cill.

63 mm projection in Accoya. Tongue fixing into 92 mm back cill.

83 mm projection in Accoya. Tongue fixing into 92 mm back cill.

103 mm projection in Accoya. Tongue fixing into 92 mm back cill.

Glazing or infill

-

Standard

Relevant parts of BS EN 1279.

Requirements

4 mm Low E internal glass, 0.3 mm vacuum cavity, 4 mm clear external glass.

Guidance for specification option:

Toughened as standard. Applied glazing bars as necessary, no bonded bars due to thin cavity.

Hardware

Nico retractable espagnolette , Nico keep, 75 mm ball race butt hinges.

Manufacturer guidance

Various designs of heritage espagnolette handle and matching casement stay available in Black, Antique Pewter, Aged Brass, Polished Brass, Polished Nickel, and Polished Chrome. Insert requirements.

Operation

-

Type

Manual.

Colour:

Beige.

Black.

Blue.

Bronze.

Brown.

Show more

Weather seal (factory applied)

Single, fully concealed gasket for Heritage appearance.

Glazing bars

18 mm Heritage extended 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

Embodied carbon

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

85.65 kg CO₂ eq/kg

Self declared

Manufacturer guidance

Embodied carbon A1-A3 (cradle to gate) as defined in BS EN 1580475.05 kg CO₂ eq/kg for industry standard window sizeEmbodied carbon A1-A5 (cradle to install) as defined in BS EN 1580485.65 kg CO₂ eq/kg for industry standard window sizeEmbodied carbon A1-D (cradle to grave) as defined in BS EN 15804Negative 11,066.19 CO₂ eq/kg for industry standard window size

Recyclability

Mostly recyclable

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

5 %

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

FSC

FSC

Accoya FSC Certification

British Woodworking Federation

British Woodworking Federation

British Woodworking Federation

UKAS

UKAS

Enhanced Security Performance Certificate

Made in Britain

Made in Britain

Made In Britain

BRE Certificate

BRE Certificate

EPD H001.1 Richmond

Literature

Accoya Additional Warranty

Accoya Additional Warranty

Accoya® Brochure

Accoya® Brochure

FENSA Certificate

FENSA Certificate

Gowercroft Domestic Guarantee

Gowercroft Domestic Guarantee

Gowercroft Installation Manual

Gowercroft Installation Manual

Maintenance Manual

Maintenance Manual

Window Life Cycle Assessment

Window Life Cycle Assessment

BuildIt Best Windows Winner 2017

BuildIt Best Windows Winner 2017

Richmond U-value

Richmond U-value

BWF Heritage Project of the Year

BWF Heritage Project of the Year

Yale SlotVent Tricke Vent Brochure

Yale SlotVent Tricke Vent Brochure

Case studies

Maltsters Tap: Traditional Heritage Flush Casement Windows

Maltsters Tap: Traditional Heritage Flush Casement Windows

William White Buildings Heritage Windows Case Study

William White Buildings Heritage Windows Case Study

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