Specifications

Timber
Quality hardwood from responsible well managed sources. It is a pre-requisite that the timber is knot free and extremely durable.  Where applicable it may be laminated to give additional stability.

Aluminium
High quality performance aluminium systems that combine aesthetic design with energy efficiency to meet the latest thermal insulation requirements.

Glass
Door, window and roof glazing is safety glass as standard conforming to BS 6206. Double glazed units consist of two leaves of 4mm toughened glass with a minimal 16mm air gap.

Glazing options
Low-emissivity coated glass is usually fitted as standard as it improves the overall thermal efficiency of the glazing.
Anti-sun glass provides shading in direct sunlight and is available in azure or clear. Self-clean glass reduces the amount of cleaning required, and the hydrophilic nature of the glass encourages rainwater to sheet down the glass, therefore washing dirt away:
Laminated glass, to reduce the effects of ultra-violet light, to improve security and sound insulation.

Ironmongery
Premium quality fittings are used throughout. Finish options include polished brass, polished chrome, antique black and a range of handmade handles in a variety of finishes. Multi-point bolting systems are fitted to improve security along with locking handles to the opening sashes and doors.

Ventilation
Roofs are designed with maintenance-free, purpose made vents. These can be manually or electronically operated (usually controlled with or without rain sensor). Opening windows are normally top hung on heavy-duty stainless steel friction stays, enabling them to be opened to any position without the use of a stay bar.

Finishes
Aluminium sections are electrostatic powder coated and are available in more than 400 top quality RAL colours: gloss and matt finishes, pastel shades, metallic and anodised colours.
All joinery goes through three grades of sanding; coarse, medium and fine. The timber is then treated with a water-borne primer and two spray coats of microporous paint giving the equivalent of six brush coats. A full range of colours and stains are available upon request.

Warranty
J.R.Willoughby is constantly reviewing materials and construction details. Our specification is subject to continual improvements. All work is covered by our comprehensive five year guarantee. We do ask that the building is fully completed to our approved standards and is properly maintained at all times.