Building an energy-efficient home starts with choosing products that work together. From insulation and shading to window frames and glass, every decision contributes to how comfortably your home performs throughout the year.
For homeowners aiming for a 9 or 10 star NatHERS rating, windows deserve attention early in the design process. PG Windows offers locally manufactured double-glazed systems, a choice of frame materials and support through manufacturing and installation—giving clients several reasons to consider the company for their project.
Achieving a particular star rating depends on the complete home design and its energy assessment. Windows can contribute to that result, but no window product alone guarantees a 9 or 10 star home.
What Does a 9 or 10 Star Energy Rating Mean?
A NatHERS thermal star rating measures how well a home’s design maintains comfortable indoor temperatures in its local climate. The scale runs from zero to 10 stars, with higher ratings indicating lower predicted demand for heating and cooling.
The assessment considers features such as windows, insulation, building materials, orientation and shading.
This thermal star rating is separate from the NatHERS Whole of Home rating, which also considers energy use from appliances and systems, along with solar generation and battery storage. A 10 star thermal rating therefore does not automatically mean a home has no electricity bills.
For homeowners pursuing a high rating, the practical goal is a building that needs less mechanical heating and cooling to remain comfortable.
Double Glazing Supports Better Thermal Performance
Double-glazed windows contain two panes of glass separated by a sealed gap. This gap provides an insulating barrier that reduces heat transfer between indoors and outdoors.
However, the performance of a window depends on the complete system, including its frame, glass and installation. Selecting double glazing is an important discussion point, but the exact specification matters.
PG Windows manufactures double-glazed aluminium and uPVC windows and doors. Its website describes a manufacturing approach that considers local climatic conditions, solar control and frame conductivity. These are relevant considerations when discussing windows for an energy-efficient home in Perth.
Frame Options Give Homeowners More Choice
The frame is an important part of a window’s thermal performance. Homeowners planning a high-performance build should assess the glass and frame together.
PG Windows offers both aluminium and uPVC systems. Its uPVC range is described as thermally efficient and low maintenance, while its aluminium range provides another option for homeowners comparing appearance and design requirements.
Rather than choosing a material based on appearance alone, ask your energy assessor which complete window specifications suit your plans. If you prefer aluminium, discuss whether a thermally broken system is needed to achieve the required performance.
The aim is to select a product that supports your design’s assessed requirements.
Low-E Glass Provides Another Option to Discuss
Glass selection gives homeowners another opportunity to refine their window specification.
PG Windows lists low-e glass within its range. Low-e glass has a thin coating that improves its insulating properties, making it an option to discuss when planning double-glazed windows for an energy-efficient home.
The appropriate glass should be selected for the project rather than applied as a standard choice to every opening. Ask your supplier and assessor to explain the proposed specification and how it supports your home’s performance targets.
Custom Windows Help Align Products With the Design
An energy-efficient home still needs to suit the way you live. Window dimensions, opening styles and appearance should be considered alongside the energy assessment.
PG Windows offers casement, awning, sliding and customised window solutions. This range gives homeowners options to explore as they develop the window schedule for their property.
For a project targeting 9 or 10 stars, involve your designer and assessor before finalising the order. Have them check the proposed window sizes and specifications together, and reassess any changes before approving substitutions.
This helps keep product decisions aligned with the design being assessed.
Installation and Project Coordination Matter
Choosing windows is only part of the process. The agreed products must also be manufactured and installed to the project’s requirements.
PG Windows outlines a service covering design finalisation, product specification, procurement, frame production, glazing and installation. Its installation and handover process includes weather sealing and a quality check.
For homeowners, this provides a clear starting point for discussing responsibilities. Confirm who will coordinate with your builder, how the final specifications will be recorded and how any changes will be managed.
Keeping those details clear is particularly useful when your project has a specific energy performance target.
Start With Your Energy Assessor and Window Supplier Early
If you want to build a 9 or 10 star home, bring the window discussion into the planning stage.
A useful process is to:
- Set your target with your designer and an accredited NatHERS assessor.
- Ask PG Windows for proposed products and their performance documentation.
- Have the assessor model the exact window specifications within your design.
- Confirm the final frame, glazing and installation requirements before ordering.
- Review any proposed substitutions with the project team.
This gives you a basis for choosing windows and checking whether your target is achievable.
Discuss Your Energy-Efficient Home With PG Windows
PG Windows’ combination of double glazing, frame choices, customised products and installation support makes it worth considering when planning a high-performance home.
The next step is to connect those options with your building plans and energy assessment. Whether you are exploring a 9 star design or aiming for 10 stars, an early discussion can help clarify which window specifications your project needs.
Visit PG Windows to explore the range and discuss your plans with the team.
Call: 08 6255 5280
Email: info@pgwindows.com.au