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Heritage Range Timber Sash Windows – Spiral Balance

The Heritage Range

Period and historic buildings deserve particular attention to detail when considering replacement windows. Our Heritage window range has been specifically designed for listed buildings and where conservation approval is required. Designs utilise single or slimline glazing options with lambs tongue profiling, suitable for the most architecturally sensitive projects

Sliding Sash Spiral Balance

Historic look, modern design – The Heritage Sliding Sash Spiral Balance is a vertical sliding design, with a tensioned spring, providing a lifting mechanism to operate the window. This design enables the Sash window to retain all the features of a period style timber window whilst utilising the latest modern operation.

The Heritage Sliding Sash window with its classical flush line appearance has been specifically designed for listed buildings, Edwardian country estates, Victorian townhouses and where conservation approval is required.

The Heritage Sliding Sash is sympathetically designed to maximise glass areas and retain the properties historical internal features.

Exclusive Design Features

The period profile and option of single and slimline double glazing make the Heritage Spiral Balance Sliding Sash window ideal for the most architecturally sensitive of projects.

The double glazed siding sash design provides energy efficient period living, with slimline 14mm krypton filled glazing to suit listed properties where historically traditional double glazing has been rejected.

Weather Testing

The Bereco Heritage Spiral Balance design was tested to BS6375 and achieved the highest rating possible, combining a period window design with superior weather performance.

The Bereco Sliding Sash design achieved the highest classification achievable with a UK Exposure Category of 2000, 600pa (class 3) for Air permeability, 250pa water tightness and 0.8 air leakage.

Optional Design Features

For buildings where double glazing is not deemed appropriate the 4mm single glazed option offers the perfect solution. The Heritage Sliding Sash window is now available with deeper bottom rails on the lower sashes that can be increased from 66mm to 100mm if required by conservation.

A popular window specification chosen to retain the historical look of a listed property is a white colour paint finish, polished brass or antique black Ironmongery with Lambs tongue Georgian bars.

Heritage Range - Timber Spiral Balanced Sash Window

Standard Design Features

Semi-Concealed Inline Spiral Balance (Spring Loaded) Tick Mark
Horns to Top Sash Tick Mark
Angel Ventlock & Strikeplate Tick Mark
Scallop in Jamb Tick Mark
Timber Parting Bead Tick Mark
Concealed Trickle Vent Tick Mark
Timber Baton Rods Tick Mark
Groove for Window Board Tick Mark

Optional Design Features

Horns to Top & Bottom Sash Tick Mark
Horns to Bottom Sash Tick Mark
No Horns Tick Mark
Shaped Head Tick Mark
Deep Bottom Rail Tick Mark

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