Traditional Box Sash Windows - Triple - Timber Sash Window
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UL Certified
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CHAS
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Constructionline
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Health & Safety Accreditation
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Triple traditional box sash windows.
Application
Suitable for non-listed buildings and contemporary developments.
Description
Timber sash windows which embrace the style and function of traditional box sash windows, yet are enhanced with modern construction and materials.
Features and benefits:
- Smooth-running and robust, they feature a classic weight-and-pulley mechanism.
- Suitable for non-listed buildings and contemporary developments, the sash windows are available in a selection of hardwood and softwood frame finishes, along with RAL colours. With the option of safety glass, obscured glass, acoustic glass or solar control glass, the wooden double-glazed sash windows can be tailored for every situation.
- Bespoke windows and doors are available; consult manufacturer for details.
Guarantees:
TRC Contracts Ltd offers robust guarantees on all TRC window ranges we supply and install. The following general terms apply on all new windows:
- Expected Lifespan: All our windows are designed with a 60-year service life guarantee.
- Manufacturing and Material Defects: 10-year guarantee.
- Finishes: The standard three-coat opaque finished joinery is guaranteed for 10 years, and the stain finishes are guaranteed against blistering or flaking for six years.
- Seals: The seals on double-glazed units are guaranteed for 10 years (from the date of delivery).
- Ironmongery: Functional failure is guaranteed on ironmongery for two years.
General information
Color | Black Brown White Manufacturer guidanceColour from RAL classic range - standard, dual finish or stain - optional. |
Finish | Painted Manufacturer guidanceAvailable in dual finish, RAL classic range and stain. Insert requirements. |
Material | Timber Wood |
Shape | Rectangle |
Length | Bespoke Guidance for specification option: Project specific. |
Width | Bespoke Guidance for specification option: Project specific. |
Height | Bespoke Guidance for specification option: Project specific. |
Warranty description | Ten year |
Uniclass | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Specification data - Wood window units
Standard | To EN 14351. |
Dimensions and configurations | As drawing.Guidance for specification option: Insert reference. As schedule.Guidance for specification option: Insert reference. |
Product performance | |
Fire performance | |
Fire egress | Yes. |
Weather performance | |
UK exposure category | The window is fully weather sealed to BS EN 6375-1. |
Air permeability | To BS EN 1026, Class 4. |
Watertightness | To EN 1027, Class 4A. |
Resistance to wind load | To EN 1221, Class C4. |
Durability | |
Operation and strength characteristics | To BS 6375-2 |
Safety | |
Security level | To PAS 24:2016. |
Environmental | |
Background ventilation | Yes. |
Acoustic performance rating | 36 (0;-3) dB. |
Thermal | |
Whole window U-value | 1.4 W/m2K.Manufacturer guidanceTo BS EN ISO 10077-1. |
Frame | |
Standard | To BS EN 942. |
Profile | 100 x 160 mm (lining width x frame depth), manufactured using mortise and tenon joints, glued and mechanically fixed. |
Wood species | Accoya.Oak. |
Chain of custody | FSC. |
Appearance class | For opaque finishing: to BS EN 942, J10 for glazing beads and drip mouldings. |
Finish as delivered | Three coats of sprayed applied microporous water based TEKNOS paint system. |
Preservative treatment to wood components | Yes. |
Ventilator | Not required.Concealed through frame head trickle ventilator.Guidance for specification option: Concealed through frame head trickle ventilator. 1700 mm², 4400 mm² or 5000 mm² air flow dependent on frame width. |
Frame horns | Not required.Type H1.Type H2.Type H3.Type H4.Type H5.Type H6.Manufacturer guidanceSolid feature horns to top sashes are included as standard. |
Glazing or infill | |
Standard | Relevant parts of BS EN 1279. |
Requirements | Factory glazed with 24 mm thickness dual sealed units. |
Hardware | Lockable Fitch fastener and two finger pulls to the bottom sash. |
Operation | |
Type | Manual.Guidance for specification option: Sashes are hung on cords or chains, operating over pulleys and counter balanced with lead weights. |
Fixing features | A lockable fitch fastener and two finger pulls to the bottom sash. |
Sill projection | 35 mm. 50 mm. 60 mm. 70 mm. 80 mm. |
Windowboard groove | Required. Not required. |
Internal Glazing Bars and/or Perimeter Bead | 18 mm lambs tongue type 2. 18 mm ovolo profile type 2. 22 mm lambs tongue type 1. 22 mm ovolo profile type 1. |
External Glazing Bars | 18 mm chamfered putty bar. 22 mm chamfered putty bar. |
Glass units | 24 mm double glass unit. Guidance for specification option: 4 mm tough/ 16 mm argon/ 4 mm tough low-E. 24.8 mm sound control double glazed unit. Guidance for specification option: 6.8 mm sound control laminated/ 14 mm argon/ 4 mm tough low-E. Special order. Guidance for specification option: Insert requirement, safety, obscured, acoustic or solar control glass options available. |
Perimeter/Integral spacer bar | Black warm edge perimeter spacer and integral glazing bars within unit cavity. Matt chrome warm edge perimeter spacer and integral glazing bars within unit cavity. White warm edge perimeter spacer and integral glazing bars within unit cavity. |
Ironmongery | Antique brass sash fitch fastener, sash lifts, sash pulleys. Brass sash fitch fastener, sash lifts, sash pulleys. Oil rubbed bronze sash fitch fastener, sash lifts, sash pulleys. Polished chrome sash fitch fastener, sash lifts, sash pulleys. Satin chrome sash fitch fastener, sash lifts, sash pulleys. |
Child restrictor | Not required. Angel lock. Guidance for specification option: Standard. Traditional sash stop. |
Sash | 39 x 55 mm top rail and stiles, 90 x 55 mm bottom rail, 45 x 55 mm meeting rail. Manufacturer guidanceSashes are hung on cords or chains, operating over pulleys and counter balanced with lead weights. |
Mullion/ transom | 200 mm wide (130 mm for triple sash with fixed outer sash). |
Sill | 54 x 160 mm. Manufacturer guidanceSolid hardwood. |
Staff bead | Timber. |
MoistureContent | 12–19% (wood). |
Glazing bead | Internally beaded. |
Wood species | Engineered Accoya. Engineered European oak. Engineered hardwood. Engineered redwood. Guidance for specification option: Standard. |
Applied finish | Dual finish. Guidance for specification option: Insert requirements. RAL classic range. Guidance for specification option: Insert requirements. Stain. Guidance for specification option: Insert requirements. Manufacturer guidanceThree coat spray applied factory finish using water based micro-porous paint/ stain. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Latvia |
Country of product manufacture | Lithuania |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 0.5 kg CO₂ eq/kg Self declared |
Recyclability | Yes |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
BIM objects
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 | Revit 2017 | 1 |
 IFC | - | 1 |
Third party certifications
Literature
Traditional Box Sash Windows
Case studies
University Arms Hotel, Cambridge
KINGS COURT 34 ROSE ST, COVENT GARDEN