JSP Aluminium

Aluminium Casement Windows

Effective and high-performance windows with a versatile range of profiles.

IsoForm 1200​: Elegant Windows

An elegant casement system allows a modern feel to the homes and offices offering advanced functionality.

Introducing Isoform 1200: Where innovation meets precision engineering, designed to elevate your space with timeless elegance and exceptional performance.

Crafted with meticulous attention to detail, Isoform 1200 seamlessly integrates style and functionality, setting a new standard in architectural excellence.

Window Features

Sleek Design: Isoform 1200 boasts a sleek and contemporary design, enhancing the aesthetic appeal of any space. Its clean lines and minimalist profile create a modern look that complements a variety of architectural styles.

Enhanced Thermal Performance: Isoform 1200 features advanced thermal break technology, minimizing heat transfer and enhancing energy efficiency. With U-values as low as 1.4 W/m²K, Isoform 1200 helps maintain comfortable indoor temperatures year-round, reducing heating and cooling costs.

Robust Construction: Built to withstand the elements, Isoform 1200 is constructed from high-quality aluminium for exceptional durability and longevity. Its robust frame and reinforced profiles ensure structural integrity, providing reliable performance in all conditions. Cyclic tested to 50,000 openings and closings, this means we ensure a long life span and excellent durability.

Versatile Configurations: Adapt Isoform 1200 to suit your unique space with a variety of configuration options. From side hung, top hung and bay windows, Isoform 1200 offers versatility to meet your specific requirements.

Security Features: Your safety is paramount. Isoform 1200 is equipped with advanced locking mechanisms and security hardware to provide peace of mind and protect your property from intruders. Backed by a PAS 24 certificate

Why Choose Aluminium Over uPVC oR Timber?

Feature Aluminium uPVC Timber
Lifespan
30-40 years
15-20 years
10-15 years
Maintenance
Low
Moderate
High
Eco-Friendly
100% Recyclable
Limted
Depends on Source
Aesthetic Value
Sleek & Modern
Basic
Classic & Traditional

Detailed Features

Colour: Ral Colour + Anodised
Material: Aluminium 
Width: Bespoke

Side Hung 
Minimum sash width: 400 mm
Maximum sash width: 600 mm
Max sash weight: 20Kg

Top Hung
Minimum sash width: 400 mm
Maximum sash width: 1400 mm
Max sash weight: 43Kg

Height: Bespoke

Maximum sash height: 1400mm

Weather Performance: Tested to withstand wind loads up to 2400 Pa and water tightness up to 300 Pa

  • Sash to Frame: 80 mm
  • Sash to Sash: 116 mm
  • Upstand: 46 mm
  • Transom: 48mm
  • Standard Frame Depth: 70 mm
  • PAS24 Certified.
  • BS 6375-1: Weather Performance
  • BS 6375-2: Weather Performance
  • BS 1191: Cycling Performance
  • Trickle Ventilators Available
  • Part L Compliant
  • Thermal performance of the unit (u-value): 1.4 W/(m²K)
  • Glazing Options: Double or triple glazing up to 32mm
  • Hardware: Multi-point locking system for enhanced security

Technical Information

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