Double Glazing

Ventrolla

Ventrolla’s preferred timber window double glazing solution of replacing the sashes and retaining the original box frame and sill, reduces the disruption to the property and hence cost of making good any redecoration. More importantly, the replacement sashes are designed specifically for double glazing units, particularly to carry the extra weight, and can be appropriately sealed to ensure longevity.

ventrolla utilise slim glazing units which enables them to manufacture sashes using traditional carpentry methods, including ‘through' / 'solid’ glazing bars, helping to retain the window's authentic feel and look. Another main feature of the slim glazing unit is the reduced sightline of the spacer bar between the two panes of glass, which enables Ventrolla to manufacture narrower glazing bars and thereby closely replicating the existing sashes.

The Benefits
• Reduced energy costs
• Easy Future Maintenance
• Minimum disruption and redecoration to the property
• Perimeter Sealing System tested to BS6375-1 (equivalent to 71mph winds)

Glazing Specification
Slim 14mm (4/6/4) double glazed units utilising white or black spacer bar with dual seal edge technology with Saint Gobain Planitherm Total+ and Argon gas filled cavity. The units comply with BS EN1279 parts 1-6.
• Centre Pane U-Value of 2.0 Wm²K
• Total Window U-Value of 2.3 Wm²K

New double glazed windows
Slim 16mm (4/8/4) double glazed units utilising white or black spacer bar with dual seal edge technology with Saint Gobain Planitherm Total+ and Krypton gas filled cavity. The units comply with BS EN1279 parts 1-6.
• Centre Pane U-Value of 1.3 Wm²K
• Total Window U-Value of 1.6 Wm²K (equivalent to WER C)

Timber Specification
The replacement sashes are manufactured from either Accoya, which has a 50 year manufacturer’s warranty against rot and termite infestation, hardwood, or treated softwood. The replacement sashes are manufactured using a range of selected traditional ‘through’ glazing bars and are manufactured and hand finished by Ventrolla's skilled craftsmen.

Ventrolla Sash Removal System (SRS) Specification
To assist with future maintenance and painting, where possible, Ventrolla install their patented Sash Removal System (SRS) that enables both the top and bottom sashes to be removed for redecoration and future maintenance.

Ventrolla Perimeter Sealing System (VPSS) Specification
All Ventrolla new sashes include the unique VPSS draught system that has been tested to BS 6375-1 2009 Class 3, which is equivalent to 71mph winds. The system is fitted by routing grooves into the mid-rail and bottom rail in the sashes, or within the inner face of casement windows, to which a pile carrier is fitted and appropriate height weatherfin pile installed. New parting beads and staff beads are fitted that also incorporate the weatherfin pile, creating a fully sealed, yet operational window.

The finish
The sashes are supplied sprayed with a high build base coat and an anti-stain primer, ready for final finishing coat by others.

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Ventrolla

Ventrolla

Established for over 30 years, period window specialists, Ventrolla, provide a unique renovation and upgrade service to improve the energy and operational performance of traditional timber windows. Their services include draught-proofing, repair and...
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T(0800) 378 278
F(01423) 859321
Einfo@ventrolla.co.uk
WVisit Ventrolla's website
 Ventrolla House, Crimple Court, Hornbeam Business Park, Harrogate, N Yorkshire, HG2 8PB

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