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Verified by manufacturer 2 months ago
CHAS
Certificate type
Constructionline
Certificate type
Health & Safety Accreditation
Certificate type
BM Trada
Certificate type
BS EN 13501-1
Certificate type
Heritage Sash Windows - Double.
Suitable choice for replacement windows in listing buildings, whilst also suiting high-end architect-led new developments.
Heritage sash windows constructed to match box sash windows crafted more than a century ago. The sash windows, with the classic weight-and-pulley mechanism, are a suitable choice for replacement windows in listing buildings, whilst also suiting high-end architect-led new developments.
Features and benefits:
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:
ColorColour from RAL classic range - standard, dual finish or stain - optional. | Black Brown White |
FinishAvailable in dual finish, RAL classic range and stain. Insert requirements. | Painted |
Material | Timber Wood |
Shape | Rectangle |
Length | Bespoke Project specific. |
Width | Bespoke Project specific. |
Height | Bespoke Project specific. |
WarrantyDescription | Ten year |
Uniclass | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Standard | To EN 14351. |
Dimensions and configurations | As drawing.Insert reference. As schedule.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 12211, Class C4. |
Durability | - |
Operation and strength characteristics | To BS 6375-2 |
Environmental | - |
Background ventilation | Yes. |
Acoustic performance rating | 36 (0;-3) dB. |
Thermal | - |
Whole window U-value | ≥1.6 W/m²K.To BS EN ISO 10077-1. |
Frame | - |
Standard | To BS EN 942. |
Profile | 100 x 140 mm (lining width x frame depth), manufactured using mortise and tenon joints, glued and mechanically fixed. |
Wood species | Softwood.Hardwood.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.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. |
Glazing or infill | - |
Standard | Relevant parts of BS EN 1279. |
Requirements | Factory glazed with 14 mm thickness dual slim sidelight sealed units. |
Hardware | A lockable Fitch fastener and two finger pulls to the bottom sash. |
Operation | - |
Type | Manual.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. |
Solid bars | 24 x 45 mm ovolo. As drawing. |
Glazing | Slim sidelight DGU. |
Child restrictor | Not required. Angel lock. Standard. Traditional sash stop |
SashSashes are hung on cords or chains, operating over pulleys and counterbalanced with lead weights. | 39 x 45 mm top rail and stiles, 90 x 45 mm bottom rail, 45 x 45 mm meeting rail. |
Mullion/ transom | 200 mm wide (130 mm for triple sash with fixed outer sash). |
Staff bead | Timber. |
MoistureContent | 12–19% (wood). |
Glazing bead | External traditional putty glazed. |
Sill | Solid hardwood. |
Applied finishThree coat spray applied factory finish using water based micro-porous paint/ stain. | Dual finish. Insert requirements. RAL classic range. Insert requirements. Stain. Insert requirements. |
Wood species | Engineered Accoya. Engineered European oak. Engineered hardwood. Engineered redwood. Standard. |
Contains Red List materials | No |
Country of material origin | Cameroon |
Country of product manufacture | Lithuania |
Embodied carbon | 0.5 kg·CO₂e/kg |
Recyclability | Yes |
Recycled content | 0 % |
Platform | Compatible | Version | Certified to |
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![]() | - | 1 | 2.1 |
![]() | Revit 2017 | 1 | 2.1 |
CHAS
CHAS standards
Constructionline
Constructionline Silver
Constructionline
Constructionline Social_Value
Health & Safety Accreditation
Health & Safety / Acclaim Accreditation
BM Trada
Heritage Sash Box window acoustic performance to BS EN ISO 10140-2:2010
BS EN 13501-1
UW-Analysis of Heritage Box Sash Window
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Heritage Sash Windows - Triple
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Traditional Box Sash Windows - Triple
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