NBS Source
Heritage Casement Windows

Application

Suitable for refurbishment and listed buildings. 

Description

Heritage casement windows.

These heritage casement windows echo the smooth, traditional styling of historic windows. Ideally suited for refurbishment contracts and listed buildings, these conservation casement windows also bring an evocative timelessness to contemporary developments.


Features and benefits:

  • This premium product boasts time-honoured details, including traditional putty; and is offered in a choice of hardwood and softwood frames, plus RAL finishes.
  • Single or double Slimlite glazing means these casement windows deliver both historic styling and modern thermal and acoustic performance.
  • Available as inward or outward opening, side-hinged or top-hung.
  • FSC certified.

General information

Color

Multiple options available. RAL classic range.

-

Finish

Coated

Applied factory finish using water based micro-porous satin paint (three coats).

Material

Timber

Shape

Rectangle

Special shapes available.

Size

1330 x 1602 mm

WarrantyDescription

10 year

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

Standard

To BS EN 6375-1, EN ISO 10077 and ISO 9001.

Third-party certification

FSC Certified.

Dimensions and configurations

As drawings.

Insert requirements.

As schedule.

Insert requirements.

Product performance

-

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 4A.

Resistance to wind load

To BS 6375-1, Class A4.

Durability

-

Operation and strength characteristics

To BS 6375-2.

Environmental

-

Background ventilation

Trickle vent.

Acoustic performance rating

To BS EN ISO 717-1, ≤36 dB.

Thermal

-

Whole window U-value

1.6 W/m2K.

Frame

-

Profile

Ovolo.

Lambs tongue.

Wood species

Engineered Accoya.

European oak.

Engineered hardwood.

Engineered redwood.

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 finished.

Preservative treatment to wood components

Preservative treated.

Ventilator

Trickle ventilator, EA 1700, 4400, 5000 mm².

As standard, through top sash.

Frame horns

Required.

Glazing or infill

-

Requirements

14 mm double glazed Slim Sightline (8.5 mm) unit.

Standard, 4 mm/ 6 mm argon/ 4 mm low-E externally glazed using Heritage hand-faced putty.

12 mm double glazed Slim Sightline (8.5 mm) unit.

4 mm/ 4 mm argon/ 4 mm low-E externally glazed using Heritage hand-faced putty.

6 mm toughened single glass externally glazed.

Using Heritage hand-faced putty.

Single glazed, 4 mm thick toughened single glass, externally glazed.

Using Heritage hand-faced putty.

Hardware

Lockable brass casement fastener -Standard.

Lockable polished chrome casement fastener.

Lockable satin chrome casement fastener.

Spoon end brass casement stay.

Standard.

Spoon end polished chrome casement stay.

Spoon end satin chrome casement stay.

Special order.

Selected Croft ironmongery with bespoke finish is available; consult manufacturer and insert requirement.

Operation

-

Type

Manual.

Electrical supply

Not required.

Fixing features

Project Specific

Sash

42 x 45 mm.

MoistureContent

12–19%.

Glazing beads

External traditional putty glazed.

Sill

Solid hardwood.

Frame sections (width x depth)

55 x 86 mm.

55 x 105 mm.

As standard.

Sill section (height x depth)

55 x 86 mm.

55 x 105 mm.

As standard.

Sill projection

50 mm.

60 mm.

70 mm.

80 mm.

90 mm.

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Trickle ventilation

Build within the Sash trickle ventilator. 1700 mm², 4400 mm² or 5000 mm² air flow dependent on frame width.

Child restrictor

Child safety catch type restrictor.

Environmental information

Country of material origin

Lithuania

Country of product manufacture

Lithuania

Recyclability

Recyclable parts of product timber, glass, gaskets.

-

Digital objects

Platform Compatible Version Certified to
IFC
-

1

2.1
Revit

Revit 2017

1

2.1
Download now from NBS National BIM Library

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