Allan Brothers

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Casement

The A Frame Range

  • 30 yr timber warranty
  • 'A' energy rating thermal insulation
  • A+ enhanced rated security
  • Multiple colour options
  • Any shape made to measure
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Frame Specification

Stormproof casement window

The A-Series frame is available as both side hung or top hung.

  • Optional glazing bars
  • Reflex hinges
  • Externally beaded
  • Beautiful decorative internal mould

Sizes

Common stock sizes:

Width (mm):
  • 624
  • 1200
  • 1776
  • 2352
Height (mm):
  • 624
  • 1200
  • 1776
  • 2352

Performance

A+ rated on the BRE Green Guide and approved to:

  • BS 6375 Part 1
  • E 2500 exposure category

and the following pressure class ratings:

  • Air Permeability: 600Pa
  • Water Tightness: 1,950Pa
  • Wind Resistance: 2,500Pa

Our windows are factory-fitted with dual weather-strips which give a water-tight seal and a high level of energy efficiency.

An 'A' energy rating is available for its high thermal performance, and is available with triple glazing for even more insulation.

Construction

As standard, the windows are made from quality redwood. A hardwood option is also available.

The range is constructed from generously proportioned timber sections.

Security

Designed to score an A+ rating to meet and exceed the requirements of BS 7950 - Enhanced security for windows in private dwellings, this range offers a stronger and more effective deterrent to would-be burglars and vandals than ever before.

This, also combined with the assurance of quality, styling and attention to detail makes the A-Series the perfect choice for those who are concerned with security.

Security locking by shoot-bolt espagnolette system with 6 locking points.

High performance security glazing features double sided tape with a silicone infill around the unit and secured with our glazing system.

A+ enhanced security exceed to BS 7950 standards.

cross-section

Finish

Finish

Allan Brothers' products are treated with preservative after all machining. This is applied by means of a double vacuum process in accordance with BS8417 and NHBC recommendations.

Our water-based coatings are carefully formulated to seal the end-grain against moisture ingress, inhibit tannin stain and give the timber a quality look and feel.

Ironmongery

This window is fitted with a stainless steel adjustable friction hinge which allows opening to 60° for easy cleaning.

It is also available with a restrictor to limit initial opening of the window to under 100mm in accordance with BS 8213 Part 1:2004. In addition, an egress hinge which allows opening to 90° can be fitted to meet regulations for emergency access and egress.

Ventilators

Ventilators are fitted as standard within the frame head to eliminate the need for a vulnerable and unsightly external hood.

All ventilators comply with current building regulations: Approved Document F England & Wales and Scottish Building Standards Section 3.

Colours

These are our standard colours, however we can provide your windows and doors in any RAL colour.

colour-chart

Glazing

Using glazing rebates of 46 x 18mm, our A-Series window is factory fitted as standard with 28mm (4/20/4) 'Low E' double glazed sealed units. The glazing system has timber beads all round as standard.

The beading is secured using Allan Brothers' fixing system to enhance product integrity and appearance.

Specialist glazing, e.g., argon filled, patterned glass or laminated, can be fitted, if required, to give additional insulation and/or security. A range of glazing bars and astragals can also be fitted on request.

Learn more about our glazing