IGU Glass

Pro Comfort Insulated Glass Units (IGUs) from Glass Projects are high-performance glazing solutions designed to deliver exceptional thermal insulation, energy efficiency, and enhanced interior comfort for buildings in New Zealand. An IGU consists of two or more lites of glass separated by a hermetically sealed air or gas-filled cavity, created using a perimeter spacer bar and durable secondary sealant. This construction significantly reduces heat transfer (conduction, convection, and radiation) between the interior and exterior environments.

Key attributes of Pro Comfort IGUs include:

• Superior Thermal Insulation: Dramatically reduces heat loss in winter and heat gain in summer, resulting in significantly lower U-values compared to single glazing.

• Energy Savings: Leads to reduced reliance on heating and cooling systems, translating into lower energy bills and a smaller carbon footprint.

• Enhanced Occupant Comfort: Creates more stable and comfortable indoor temperatures year-round, eliminating cold drafts near windows and minimising overheating.

• Condensation Resistance: The warmer interior glass surface of an IGU significantly reduces the likelihood of internal condensation forming, promoting healthier indoor environments and protecting window joinery.

• Versatile Glass Combinations: Pro Comfort IGUs can incorporate a wide variety of Glass Projects’ specialised glass types, including:

  • Pro-E Range (Low-E Glass): Essential for optimal thermal performance, reflecting heat back into the building in winter and reflecting external heat out in summer.

  • Pro Tint (Tinted Glass): For solar control and aesthetic appearance.

  • Pro Lam (Laminated Glass) / Sound Pro (Acoustic Glass): For enhanced safety, security, and sound insulation.

  • Pro Ultra Clear (Low Iron Glass): For maximum clarity and light transmission.

• Gas Filling Options: The cavity can be filled with inert gases like Argon or Krypton, further enhancing insulation performance beyond standard air fill.

Glass Projects specifies Pro Comfort IGUs as a fundamental component for energy-efficient building envelopes across a wide range of applications in New Zealand. They are the standard for high-performance glazing:

• Residential Windows & Doors: Essential for new homes and renovations seeking to achieve modern standards of thermal comfort and energy efficiency.

• Commercial Glazing: Widely used in office buildings, retail spaces, and public buildings for facades, curtain walls, and storefronts to manage energy costs and improve occupant comfort.

• Skylights & Overhead Glazing: Crucial for minimising heat loss or excessive solar gain through roof glazing, often incorporating laminated safety glass and Low-E coatings.

• Energy-Focused Projects: Indispensable for buildings targeting high energy performance standards such as Green Star, Passive House, or compliance with the upper tiers of NZBC H1.

• Cold Climate & Noise Sensitive Applications: Particularly beneficial in colder regions of New Zealand to retain heat, and can contribute to improved acoustic performance when specific laminated glass types (like Sound Pro) are included.

Glass Projects’ expertise ensures that each Pro Comfort IGU is custom-designed and manufactured to meet the specific thermal, solar, and acoustic performance requirements of the project, taking into account orientation, climate, and building use.