R3.5 Bradford Gold Ceiling Insulation Batts
R3.5 Bradford Gold Ceiling Insulation Batts are a glasswool thermal ceiling batt from Bradford Insulation, designed to reduce heat transfer through residential and commercial ceilings. The product is non-combustible and suited to cooler Australian climates including Melbourne and Sydney, where higher thermal performance is needed across hot summers and cold winters.
Specifications
- R-value: R3.5 m2K/W
- Thickness: 185 mm
- Standard batt size: 1160 x 430 mm or 1160 x 580 mm
- Material: Glasswool
- Combustibility: Non-combustible (AS 1530.1)
- Fire hazard indices (AS/NZS 1530.3): Ignitability 0, Spread of Flame 0, Heat Evolved 0, Smoke Developed 1
- Maximum service temperature: 300 degrees C
- Joist spacing compatibility: 450 mm and 600 mm centres
Applications
Installed in ceiling cavities of residential and commercial buildings to control heat gain in summer and heat loss in winter. The R3.5 rating makes it appropriate for regions with variable climates requiring strong year-round thermal protection. Suitable for both new construction and retrofit roof-space installations. Compatible with standard 450 mm and 600 mm joist centres.
Standards and compliance
Complies with NCC 2022 Volume 1 J4D3(1) and ABCB Housing Provisions Standard 2022 13.2.2(1) for thermal performance. Tested to AS/NZS 4859.1. Non-combustible per AS 1530.1. Fire hazard properties assessed to AS/NZS 1530.3. Recognised by the National Asthma Council Australia Sensitive Choice program.
Frequently asked questions
What thickness is the R3.5 Bradford Gold ceiling batt?
The R3.5 Bradford Gold ceiling batt is 185 mm thick, as confirmed in Bradford's Product Technical Statement PTS032.
Is Bradford Gold glasswool non-combustible?
Yes. Bradford Gold is assessed as non-combustible to AS 1530.1, with a Spread of Flame index of 0 and Smoke Developed index of 1 per AS/NZS 1530.3.
How does R3.5 compare to R3.0 for ceiling insulation?
R3.5 provides greater thermal resistance than R3.0 and is 185 mm thick compared to 165 mm. It is better suited to climates with more extreme temperature variation where higher R-values are recommended.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
What is your return policy?
All refunds and returns are determined by the manufacturer's terms of sale. Change-of-mind refunds are not accepted, but all valid warranty claims will be managed by AKA Acoustics in compliance with consumer law.
How long will it take to receive my order?
Freight lead times will be provided upon order confirmation. Standard items typically ship within 4–6 weeks, while custom orders may take 6–12 weeks.
Is my payment information secure?
Yes, all payments are securely processed through Stripe and are protected under their Terms of Service. AKA Acoustics do not store any payment information ourselves.
How are freight costs calculated?
Freight costs are determined at the time of quotation to ensure accurate pricing based on your specific order. For any questions, please email sales@akaacoustics.com
How can I contact support?
For account inquiries, email accounts@akaacoustics.com. For order support, email sales@akaacoustics.com.