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Sash Windows

Technical Summary:

Sizes
Frame Depth = 144mm or 160mm
Sash Depth = 56mm
Sash Stile Width = 55mm

Mechanism
Pre-tensile spiral balance springs or counter balanced lead weights

Trickle Ventilation
TFF Slimline 1250, 2500, 5000
Related Links
• Timber Specification
• Paint Finish
• Testing Information
• CAD Drawings
Our bespoke sliding sash windows are supplied with traditional weights and pulleys, or modern spiral balanced mechanisms. Spiral balances are neatly concealed behind a timber trim meaning no un-sightly mechanism is on display.
 
With years of manufacturing experience, we have produced a comprehensive range of vertical sliding windows including semi-circular heads and bow fronted windows.
 
Our Sash Windows are suitable for new-build, refurbishment and commercial projects. Beautiful design with precision manufacture gives our sliding sash windows a traditional appearance with superior modern performance.
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Technical Summary

Sliding Sash Windows Tech Sheet
File Size: 426 kb
File Type: pdf
Download File

To download section detail in CAD format please click here.

Product Features

Weatherproofing Gasket
Our window gasket system is designed to provide you with a draught-free weather seal, while our frames are designed to allow any excess water to drain off.

Frame Types
As well as the two different lift systems, we also have two different frame types to choose from. Our standard frame depth of 160mm is suitable for most situations; however we also have a slimmer 144mm depth heritage sash window. This sash window is popular in period buildings and can accommodate slimlite glass and single glazing.
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Spiral Balances
Spiral balance operation gives a modern and cost effective alternative to traditional lead weights. Using a pre-tensioned spring system, they are designed to counter balance the sash, holding it in any position.

Whilst balances aren’t designed as a mechanical opening device, they do give some level of assistance when opening the window. Unlike many suppliers currently on the market, our spiral balances are hidden within the window framework meaning you do not see any unsightly, plastic tubing in our windows.

Lead Weights
Lead weighted windows are the traditional system for vertical sliding windows. The weight of the opening sash is counterbalanced by lead weights that provide just the right amount of counter balance to support the sash, but not too much so that the window can be smoothly opened. We only use the highest quality sash cord within our windows.
Moulds
We offer a range of sash moulds allowing you to further customise your windows. Internal sash moulds are available in Ovolo, Lambs Tongue or Square moulds.

Nosings
External sill nosings are fitted on site into a pre-machined groove in the framing. These come in a range of projection sizes: 30mm (stub), 80mm (standard), 107 or 137 (extended). We can also supply internal painted windowboards on request. These are available in MDF or Hardwood and slot into a pre-machined grove on the internal face of the frame sill.

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Horns
Moulded sash horns are available to top and bottom sashes. Simply specify your preference when requesting a quotation.

Specials
Our experience and advanced manufacturing techniques allow us to produce extremely varied designs including products such as curved glass windows. Where practical, we can alter rail or style widths to suit the design requirements. Variations of glass specification, finish and ironmongery options can all accommodated. Our expertise and flexibility allow us to deliver a quality product whilst still giving the ability to customise your joinery.

Glazing Information

Factory Glazing
The casement windows are all glazed in our workshop by our highly skilled team of glaziers. The external beading profile is designed to replicate the look of a traditional bead while utilising modern manufacturing techniques and a concealed pin system which ensures a blemish-free surface to the glazing bead. A full range of glass specifications are available.

Glass
We offer a full range of glass units including slim-lite units, internal blinds, triple glazing and switchable glass. We can supply various other options to improve U-values, reduce heat gain or to ensure greater security. Etched or patterned glazing can also be supplied.

• 24mm double glazed sealed units manufactured to a 4-16-4 configuration. Conforms to BS5713*
• Toughened safety glass as standard
• Factory glazed using a fully sealed system
• Low emissivity, solar control, tinted, easy-clean, obscure and laminated glass are all available as options at an extra cost

Fenestration
 A choice of 18mm bonded bars or 44mm (34mm or 24mm with slim-light glazing) through bars allow a full range of fenestration options, from Georgian multi-pane units to semi-circular or Gothic beading configurations. Our highly skilled craftsman and precision engineering allow us to create very complex fenestration designs to an extremely high standard.

 * A summary of the relevant British Standard can be found here.

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Hardware

Ironmongery Options

All ironmongery is available in a range of finishes. Please see below for our available options.
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Locking Brighton Fasteners. Available in Gold, Polished Chrome or Satin Chrome.
Optional extras available in a range of finishes. Prices may vary.
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Fitch Fastener
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Ring Pulls & Pole
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Quadrant Fastener
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Push Ventlocks
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Locking Hook Fastener
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Locking Ventlock

Paint Finish

Timber is treated with three coats of factory applied micro-porous paint or translucent stain providing a fully finished product. Our fully automated finishing plant provides a high build, uniform paint finish. All paint, primers and finishes are micro-porus, allowing the timber to breathe naturally.

A choice of standard paint colours are available. Special colours can also be produced to match any sample or RAL reference number. We can also provide a combination of two-tone internal/external.

Please visit the paint finish section of our website for more information.

Sales Team in Highbridge, Somerset, UK on Houzz

01278 764446

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  • Products
    • Casement Windows
    • Sash Windows
    • Doors
    • Bifold Doors
    • Lantern Roofs
    • Conservatories & Orangeries
    • Brochure Downloads
  • Architects & Specifiers
    • RIBA Product Selector
    • NBS Plus
  • BIM
  • Technical
    • Timber Specification
    • Paint Finish
    • Testing Information
    • Glass
    • Installation
    • Maintenance & Aftercare
    • Download Centre
  • About Us
    • News
    • Commercial Team
    • Factory
    • FAQ
    • CE Marking
    • Environment >
      • FSC®
      • A Rated Timber Windows
    • Terms & Conditions for Sale
  • CASE STUDIES
  • London Showroom
  • Contact Us