Replicating that traditional style, with smoothly operating weightless sashes the modern spiral balance sash window is ideal in new build, and remodelling situations where there is no room for the traditional box sashes.
These more cost effective alternatives to the cords and weights range, look and feel exactly the same, but are a much easier alternative to install, as they can be built into standard brick openings without the need to be built in behind the facing brickwork to cover some of the heavier sections required in Cords and Weights sash windows. This gives you more glass for viewing typically. These windows can be manufactured using Oak, Hardwoods or treated engineered softwoods, and using our modern manufacturing techniques, these spiral balance sash windows offer you great thermal performance, security and weather rating, with at least 2 formal seals. between the inside and outside of the windows. We also can offer you any glazing bar configuration designs to tie in with the character of your property, and this range is also available fully compliant with Part Q ( Security ) of the Building Regulations.
|Double Glazing||Triple Glazing|
|U Values||Glass: 4/16/4 Ug = 1.1 w/m2K|
Whole Window: 4/16/4 = 1.4 w/m2K
|Glass: 4/12/4/12/4 Ug = 0.7 w/m2K
Whole Window: 4/12/4/12/4 = 1.1 w/m2K
|Frame Thickness / Width||148 x 60mm||148 x 60mm|
|Sash Thickness / Width||58 x 40mm||66 x 40mm|
|Sill Sizes Available||148mm > 250mm||148mm > 250mm|
|Glazing Thickness Available||4mm Single > 30mm Double||4mm Single > 38mm Triple|
|Air Permeability Class||3||–|
|Secured By Design Available||Yes||Yes|
|Integral Bar Designs Available|
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