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Residential Bi-Fold Windows
New APL 2019 Specifier Guide now available Order now
Description

The Altherm bi-fold system offers formats that can stack to one or both sides. Corners are square-cut for optimum strength and aesthetics and the track is within the frame for direct window support.

A wide range of configurations are available including 'lay-back' arrangements in 2-panel formats that allow the bi-folds to swing back against adjoining walls for the clearing of decks. A brush seal at the frame head protects against the entry of rainwater.

Key Features
  • For mainstream residential use
  • Ideal for wide openings
  • A wide range of configurations available
  • Flat-face frame for clean aesthetics
  • An in-frame track provide optimum panel support
  • For uncluttered decks a 'lay-back' option allows panels to fold back against adjoining walls (available in 2-panel and 2+2 formats)
  • Square cut panel corners for improved aesthetics
  • Bi-fold handle fixes panel at top and bottom
Categories / Ranges
Bifold Windows Altherm Residential
Scope of Use
  • Suitable for broad residential use
  • A good option for maximum unobstructed views and ventilation
  • Need to be used in defined maximum sizes according to the wind exposure
Limitations on Use
  • Recommended maximum 2100mm high doors in Extra High wind zones. For larger sizes consider using the Metro Series and APL Architectural Series
  • Careful consideration of bi-fold use is required when projecting on to decks or pedestrian areas (lay-back option available in this situation)
  • Consider the ease of reaching to the bi-fold handle if the window is placed beyond a bench
  • Open bi-folds need to be monitored if windy conditions occur
  • Free-swinging single panels not recommended
Statement of Building Code Compliance
  • Designed, tested and manufactured to meet NZS 4211: Performance of Windows, and NZS 4233:  Glazing in Buildings, Parts 1-4
  • Designed and tested to conform to NZ Building Code, including Clause E2
In-Service History
  • Extensively used in residential projects throughout New Zealand for more than 40 years with continuous design upgrades
  • Widely used by homeowners, builders, Group home builders and specifiers
Other Performance Attributes
  • Window and door warranty provided under normal conditions of use against failure of materials and workmanship for a period of five years
  • Surface finish is covered by a separate performance warranty dependent on the actual finish selected
  • A hardware/componentry warranty is offered against defects in manufacturing, functionality and surface finish for a period of five years, provided care and maintenance guidelines have been followed
E2 External Moisture compliant
External Moisture
Documents
Data Sheet
Span Tables
Altherm Care & Maintenance Brochure

2017

Producer Statement / Warranty

2017

Full Specification
Specification Clause
Specifier Guide
WGANZ Guide to E2/AS1
APL and Sustainability

2019

Manufacturer Contact List
CAD/PDF Details
Full Set of Drawings

ABW

Altherm Residential Bi-Fold Window Two Panel

ABW01-0

Altherm Residential Bi-Fold Window Meeting Stiles

ABW02-0

Installation Details
Altherm Residential Bifold Window on Board & Batten

ARBWBB

Altherm Residential Bifold Window on Brick Veneer

ARBWBV

Altherm Residential Bifold Window on Bevelback Weatherboard

ARBWBW

Altherm Residential Bifold Window on Flat Sheet

ARBWFS

Altherm Residential Bifold Window on No Cladding

ARBWNC

Altherm Residential Bifold Window on Profile Window

ARBWPM

Altherm Residential Bifold Window on Rusticated Weatherboard

ARBWRW

Altherm Residential Bifold Window on Stucco

ARBWST

BIM
Altherm Bifold Window

Stylish contemporary lines, effective thermal technology and unwavering attention to detail have made Altherm a favourite with architects, designers and homeowners across New Zealand.

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