Best Insulation for Summer 2025/2026 in Perth
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Best Insulation for Summer 2025/2026 in Perth
Perth summers are known for their relentless heat, and the summer of 2025/2026 is already shaping up to be another scorcher. The best way to beat the heat and lower your energy bills? Insulate smart – before it’s too late.
Whether you're building new, renovating, or just looking to upgrade your insulation, this guide will help you choose the best-performing products for Perth's hot, dry climate.
Why Insulation Matters in Summer
Insulation isn't just for winter. In fact, the right insulation can:
- Keep your home cooler for longer by reducing heat transfer through your roof and walls
- Reduce your air conditioning usage, slashing energy costs
- Protect sheds and garages from becoming unusable in summer
Top Insulation Products for Perth Summer
1. Earthwool Ceiling Batts – R6.0 to R8.0
Our top pick for summer performance. Earthwool’s high-density ceiling batts offer exceptional thermal resistance, helping your home stay cooler throughout the day and into the evening. For homes in Perth and the South West, upgrading to R7.0 or R8.0 is the smartest move this season.
Shop R7.0 Batts | Shop R8.0 Batts
2. Earthwool Wall Batts – R2.7 HD
Wall insulation is often overlooked but plays a critical role in summer heat retention. Our R2.7 High-Density Wall Batts are designed specifically for Western Australia’s warm temperate climate and meet the NCC energy efficiency requirements.
3. Foil Insulation – ThermalBreak and SilverWrap
Foil wraps reflect radiant heat before it even enters your home. Products like ThermalBreak 7 and SilverWrap are ideal for use under metal roofing in new builds or renovations.
Combined with Earthwool batts, they form a high-performance hybrid system for total summer protection.
4. Underfloor Insulation – R2.5 FloorShield
Elevated homes or timber floors can become heat traps in summer. R2.5 FloorShield underfloor insulation adds comfort and reduces thermal exchange through your flooring system.
5. Shed Insulation – Earthwool + Foil Combo
If your shed doubles as a workshop or studio, it needs proper insulation too. Combine Earthwool R2.5 Wall Batts with SilverWrap Foil to keep your shed cool and usable during peak summer heat.
Explore Shed Insulation Options
Pro Tip: Don’t Forget Ventilation
Insulation works best when paired with adequate ventilation. Make sure your ceiling space or roof cavity has airflow via eaves, ridge vents, or whirlybirds to prevent heat buildup above the ceiling batts.
Get Summer-Ready with Perth Insulation Centre
All our Earthwool insulation is non-combustible, made from recycled glass, and soft to handle – perfect for Australian homes. Whether you’re building, renovating, or retrofitting insulation, we have the stock, the advice, and the best prices in WA.
Order online, or call 0417 910 326 for trade support and project recommendations.
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Beat the heat this summer – choose Perth Insulation Centre for all your insulation needs.