Fletcher Permastop Building Blanket Insulation
$222.74
Fletcher Permastop Blanket is made with Sisalation® reflective foil facing on one side to act as a barrier against condensation forming on the underside of metal roofs.
📦 Allow 7 to 10 Days Delivery
🚫 No returns available in QLD
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Description
Fletcher Permastop Blanket Insulation for Roofs
To enhance both comfort and energy efficiency in the spaces where we live and work, Permastop Blanket is the smart choice for reliable insulation performance. With the growing use of metal deck roofing and metal wall cladding in modern commercial and residential construction, selecting the right insulation solution has never been more essential.
Benefits of Permastop Building Blanket
Provides excellent thermal insulation properties, keeping homes and buildings cooler in summer and warmer in winter.
- Minimises the risk of condensation.
- Reduces energy usage to deliver cost savings.
- Excellent acoustic properties – reduces rain noise.
- Faced with industry leading Sisalation® reflective foil laminate.
- Available in customised lengths to improve installation efficiencies.
- FBS-1 Glasswool Bio-Soluble Insulation® – safe to use.
- Good Environmental Choice Australia (GECA) certified.
- Codemark certified.
- Manufactured from up to 80% recycled content.
- Satisfies Bushfire Attack Level (BAL) requirements of 0-40 in roof applications and 0-FZ in wall applications (in accordance with AS 3959 – 2009).
- Australian made.
Thermal Benefits of Roofing Blanket
Fletcher Permastop glasswool blanket insulation, faced with Sisalation®, is available in a range of material R-values—R1.3, R1.8, R2.5, and R3.0—and nominal thicknesses of 55mm, 75mm, 100mm, and 130mm. With the Building Code of Australia often requiring a Total R-Value of R3.2 in many types of construction, you can be confident that, when properly installed, Fletcher Permastop meets compliance standards.
Choosing the right insulation significantly enhances occupant comfort by moderating indoor temperatures, reducing the reliance on artificial heating and cooling, lowering energy costs, and benefiting the environment.
Acoustic Benefits of Permastop Roofing Blanket
Metal deck roofing and wall cladding are popular choices in Australia thanks to their lightweight nature, cost-effectiveness, and suitability for the local climate. While the sound of rain on a metal roof can be pleasant for some, it can become overwhelmingly loud during intense weather events—particularly hailstorms.
Permastop insulation not only provides excellent thermal performance but also serves as an effective acoustic barrier, helping to minimize noise transmission from both external and internal sources. In fact, a 75mm Permastop building blanket can reduce rain noise by up to 18dB(A) when compared to a non-insulated metal roof. It also helps to suppress the sound generated by the rapid thermal expansion of metal roofing under sunlight.
Whether for residential or commercial buildings, Permastop is a smart solution for maintaining a quieter, more comfortable environment.
Condensation & Dust Protection
When a building’s interior is warmer or cooler than the outside temperature, condensation can develop on the underside of metal roofs or walls. To help manage this issue, Permastop glasswool insulation is laminated with a high-quality Sisalation® foil facing, which acts as an effective moisture barrier. This foil not only boosts the thermal performance of the insulation but also prevents moisture penetration, helping to maintain a dry and protected interior.
An added benefit is the reduction in dust transfer, contributing to cleaner roof cavities. In bushfire-prone areas, the foil layer also helps to block embers from entering the roof space, offering an additional layer of protection. Importantly, Permastop insulation is non-combustible, making it a safe and reliable choice for both residential and commercial applications.
Quick Install Tips
- The total R-value of the insulation depends on how it is installed. It may be greater or less than the Material R-value of the product.
- Where aesthetics is of critical importance,we recommend installing the foil layer separately followed by the glasswool building blanket.
- Prior to and during installation,the Building Blanket must be kept dry.
- This Building Blanket is not designed to withstand weathering; hence external cladding shall be applied without delay. The product is notsuitable for applications where subject to wetting or excessive moisture.
- The foil surface shall face inward, except in tropical climates where the foil often faces outwards for condensation control.
- This Building Blanket can be easily cut with the use of a sharp knife and a straight edge to compress the insulation.
Achieving a More Sustainable Outcome
Sustainable practices aim to meet today’s needs while also enhancing the quality of life for future generations. Relying heavily on nonrenewable energy sources is not sustainable and poses serious risks to the environment. One of the most effective ways to improve energy efficiency—and in turn, slow the rise of greenhouse gas emissions—is through the proper specification and installation of insulation.
Fletcher Insulation™ is dedicated to supporting environmental sustainability. Their glasswool insulation products are manufactured using approximately 70% recycled glass, making them a more eco-friendly choice. Additionally, these products meet the Green Star Insulant ODP Emissions credit requirements, as they are free from ozone-depleting substances in both their composition and manufacturing process.
Additional information
| Location | South Australia, Victoria, New South Wales |
|---|---|
| R-Value | R1.3, R1.8 |
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Choose Your Date
At online checkout, you can select your preferred delivery or pickup date. We’ll get in touch with you on the same business day to confirm the details.
Fast Deliveries
Standard orders arrive in 1–2 business days for metro areas and 1–3 days for regional areas. Certain items may take longer, as noted on their product pages.
Delivery Pricing
Insulation delivery starts from just $99 in Melbourne, Sydney, Brisbane, Adelaide, and Canberra. For regional or island delivery rates, please click here or get in touch with us.
Leave or Sign
If you won’t be home on delivery day, leave a note at checkout with instructions on where to leave your order. Be sure to choose a dry, sheltered area.
Returns
Returns are accepted within 30 days of purchase and may include a 15%–30% restocking fee. Custom-made items are not returnable. See our Returns Policy for full details.
Warehouse Pickups
Pickup locations vary by brand. Contact us to find the closest pickup point in your state. Standard orders are usually ready within 1–2 business days.
Regional Delivery Prices
The delivery price will be calculated at the checkout based on your postcode. For a custom delivery quote please contact us.
New South Wales
NSW
- Sydney $99
Same day deliveries available! - Blue Mountains $180
- Central Coast $150
- Mittagong $180
- Newcastle $250
- Wollongong $180
- Other – Contact Us
Call 0469 096 420 or email info@oginsulation.com.au
Victoria
VIC
- Melbourne $99
Same day deliveries available!
- Ballarat $160
- Castlemaine $155
- Frankston $120
- Geelong $120
- Macedon $105
- Mornington Peninsula $130 +
- Philip Island $190
- Yarra Valley $99?
Delivery starts at $85
- Other – Use Cart Calculator
Other locations → please go to the cart page and calculate the price.
Queensland
QLD
- Brisbane $99
Delivery within 1-3 days!
- Gold Coast $110
- Noosa $150
- Sunshine Coast $110
- Toowoomba $150
- All Islands – Contact Us
Call 0469 096 420 or email info@oginsulation.com.au
- Other – Contact Us
Call 0469 096 420 or email info@oginsulation.com.au
OG Insulation Insulation Returns Policy
You may return unused insulation to OG Insulation, provided the following conditions are met:
- Returns must be made within 30 days of purchase.
- Products must be in original packaging and in resalable condition. We do not accept returns on wet or damaged items.
- A restocking fee of 15% applies to glasswool, polyester, and rockwool insulation.
- Foam and rigid insulation products will incur a 30% restocking fee.
Important note:
- Custom-made items are not eligible for return or refund.
- Some suppliers restrict returns in specific states—check the product page for details.
You can either return goods to the original warehouse or arrange a courier pickup at your cost. Contact us on 0469 096 420 for assistance. Not sure how much insulation you need? Email our team at info@oginsulation.com.au we’re here to help!
Product Specifications
| R-Value | Width (mm) | Thickness (mm) | Length (m) | Pack (m²) |
|---|---|---|---|---|
| 1.3 | 1200 | 55 | 15 | 18.0 |
| 1.8 | 1200 | 75 | 15 | 18.0 |
| 2.3 | 1200 | 100 | 10 | 12.0 |
| 2.5 | 1200 | 100 | 10 | 12.0 |
| 3.0 | 1200 | 130 | 10 | 12.0 |
| 3.2 | 1200 | 130 | 10 | 12.0 |
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