Name: Traditional Timber Bay Sash Window - Bay sash window
Brand: The Sash Window Workshop
SKU: 5zDVAjmsUPjkbeeMzQ8Lgs

Standard	To EN 14351.
Third-party certification	Buildcheck
Dimensions and configurations	Venetian. Manufacturer guidance Refer to a drawing or schedule.
Product performance	-
Fire performance	-
Fire resistance	N/A
Fire egress	Yes
Weather performance	-
UK exposure category	To BS 6375-1, 1600 Pa.
Air permeability	To BS 6375-1, Class 2.
Watertightness	To BS 6375-1, Class 5A.
Resistance to wind load	To BS 6375-1, Class A4.
Durability	-
Operation and strength characteristics	To BS 6375-2
Loadbearing capacity of safety devices	Bs6180
Safety	-
User design standards	In accordance with BS 8213-1.
Anti-ligature standard	N/A
Security level	To PAS 24.
Environmental	-
Background ventilation	Yes
Acoustic performance rating	29 dB. Guidance for specification option: Standard float glass insulating glass unit, 4 mm/6–20 mm/4mm. A range of acoustic insulating glass units are also available; consult manufacturer.
Thermal	-
Whole window U-value	1.7 W/m2K. Guidance for specification option: Timber frame system with 4-10-4 Low-E 0.05 uncorrected emissivity (St Gobain Planitherm Total+), 90% argon 10% air filled, low iron outer pane (St Gobain Diamant) glazing unit with Edgetech Superspacer Premium spacer bar with 5 mm hot melt butyl secondary seal.
British Fenestration Rating Council Window Energy Rating	C.
Frame	-
Standard	To BS EN 942.
Profile	Pencil Bead & Bespoke
Wood species	Accoya/ Tricoya. Guidance for specification option: Tricoya is used for box frames up to 2200 mm in height or width. Accoya is used for box frames over 2200 mm in height or width.
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	3 no. coats of factory applied Sigma white semi gloss paint, 2 no. primer base coats, 1 no. top coat. Guidance for specification option: As standard. Bespoke. Guidance for specification option: Insert requirements.
Preservative treatment to wood components	N/A
Ventilator	Titon
Frame horns	Top sash: No horn. Top sash: 90 mm Victorian horn. Top sash: 70 mm short Victorian. Bottom sash: No horn. Bottom sash: 90 mm Victorian horn. Bottom sash: 70 mm short Victorian. Bespoke.
Glazing or infill	-
Standard	Relevant parts of BS EN 1279.
Requirements	4 mm Planitherm Total + internal glass, 10 mm airspace, argon gas, 4 mm low iron external glass. Guidance for specification option: Glass thickness: 23 mm (maximum). External finish: Single pane with bonded bar, intermediate bars as necessary.
Hardware	Brass - 4 no. pulley wheels, 1 no. fitch catch, 2 no. sash lifts, 1 no. rola lock set. Satin chrome - 4 no. pulley wheels, 1 no. fitch catch, 2 no. sash lifts, 1 no. rola lock set. Brushed chrome - 4 no. pulley wheels, 1 no. fitch catch, 2 no. sash lifts, 1 no. rola lock set. Manufacturer guidance A full range of sash window ironmongery and finishes available at extra cost. Consult manufacturer.
Operation	-
Type	Manual.
Electrical supply	N/A
Fixing features	N/A
Execution	Fixing of wood frames

Weather seal (factory applied)	Full weatherstripping integrated into the sashes frames and beading.
Glazing bars	16 mm Ovolo Bonded. 20 mm Ovolo Bonded. 24 mm Ovolo Bonded. 30 mm Ovolo Bonded. 24 mm Ovolo Heritage. 20 mm Lambs Tongue Bonded. 24 mm Lambs Tongue Bonded. 30 mm Lambs Tongue Bonded. 24 mm Lambs Tongue Heritage. Show more

Color	White Other
Finish	Painted Stained
Material	Wood
Shape	Rectangle Square
Length	Bespoke
Width	Bespoke
Height	Bespoke
Warranty description	50 year

Uniclass	Pr_30_59_98_96 Wood window unitsPrimary
CAWS	L10/10 Wood windows L10/210 Wood windows

Contains Red List materials	No
Country of material origin	New Zealand
Country of product manufacture	United Kingdom
Material	Wood

Traditional Timber Bay Sash Window - Bay sash window

Application

Description

General information

Color

Finish

Material

Shape

Length

Width

Height

Warranty description

Uniclass

CAWS

Specification data - Wood window units

Standard

To EN 14351.

Third-party certification

Buildcheck

Dimensions and configurations

Venetian.

Manufacturer guidance

Product performance

Fire performance

Fire resistance

N/A

Fire egress

Yes

Weather performance

UK exposure category

To BS 6375-1, 1600 Pa.

Air permeability

To BS 6375-1, Class 2.

Watertightness

To BS 6375-1, Class 5A.

Resistance to wind load

To BS 6375-1, Class A4.

Durability

Operation and strength characteristics

To BS 6375-2

Loadbearing capacity of safety devices

Bs6180

Safety

User design standards

In accordance with BS 8213-1.

Anti-ligature standard

N/A

Security level

To PAS 24.

Environmental

Background ventilation

Yes

Acoustic performance rating

29 dB.

Thermal

Whole window U-value

1.7 W/m2K.

British Fenestration Rating Council Window Energy Rating

C.

Frame

Standard

To BS EN 942.

Profile

Pencil Bead & Bespoke

Wood species

Accoya/ Tricoya.

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

3 no. coats of factory applied Sigma white semi gloss paint, 2 no. primer base coats, 1 no. top coat.

Bespoke.

Preservative treatment to wood components

N/A

Ventilator

Titon

Frame horns

Top sash: No horn.

Top sash: 90 mm Victorian horn.