We use cookies to ensure a smooth, secure, and ever-improving experience on our website. By continuing to browse, you agree to our use of cookies as detailed in our Cookie Policy. Enjoy your visit and let us now if you need any help!
Cookie Preferences
We use different types of cookies for various purposes. Please select which you allow:
No 9 Silicone Masterflash 254-467mm (10 to 18 inch) - High Temp. (32-902)
National Flues presents the No 9 Silicone Masterflash, a premium flashing solution for metal roofs and panels. Designed for high-temperature performance and robust sealing, this product delivers unmatched durability for both residential and commercial installations. Ideal for extreme weather conditions, our silicone flashing stands out as a reliable, weather-resistant, and efficient choice for quality roof protection.
Hover to Zoom / Click for Gallery
Out of Stock – Pre-order Now
£127.49
with free delivery
Give us a call if you find it cheaper and we'll try to price match.
At a Glance
High-temperature resistance (-74°C to 260°C)
Versatile design for profiled sheeting and flat panels
One-piece construction for a seamless watertight seal
Quick and simple installation (typically under 5 minutes)
Durable silicone material resistant to UV, ozone, and adverse weather
×
Email Product
Enter your email address to send the product details:
We Won't Be Beaten On Price
At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
The No 9 Silicone Masterflash 254-467mm is a versatile and durable solution designed for both profiled sheeting and flat panel surfaces. Engineered from high-quality silicone, it offers maximum resistance against adverse weather conditions, including ozone and ultraviolet light. This makes it perfect for environments where durability is key.
Capable of withstanding temperatures ranging from -74°C to 260°C, the Silicone Masterflash is ideal for a variety of applications.The one-piece construction ensures a straightforward, efficient installation, typically taking no longer than five minutes. The base is designed to form an effective seal around most panel configurations and roof pitches, irrespective of the pipe location. Installation is straightforward: simply select the appropriate pipe opening and trim, slide the flashing over the pipe, form it to match the roof profile, apply sealant, and secure with screws and caps—tools provided in the Fixing Kit.
Note that three Standard Fixing Kits are required for complete installation.
SKU: 32-902
Technical Specifications
SKU
32-902
Base Size
635 x 635mm
Pipe External
251-521mm
Roof Pitch
0-45u00b0
Temperature Range
-74u00b0C to 260u00b0C
Installation is straightforward: select the appropriate pipe opening and trim using a Stanley knife or scissors. Slide the flashing over the pipe and form it by matching your roof profile. Apply the sealant provided in the Fixing Kit and secure with the included screws and caps. Three Standard Fixing Kits are required for a complete, secure installation. For smoother installation, use a suitable lubricant such as grease to ease sliding the flashing into position.
The No 9 Silicone Masterflash is temperature resistant from -74°C to 260°C, making it suitable for extreme conditions.
The Silicone Masterflash is constructed from high-quality silicone, offering maximum resistance to weathering, ozone, and ultraviolet light.
The installation is quick and easy, usually taking no longer than five minutes. The one-piece construction and flexible base make for an efficient process.
You'll need a Stanley knife or scissors to trim the opening, and lubrication like grease to slide the flashing over the pipe. The Fixing Kit includes the necessary sealant, screws, and caps.
Three Standard Fixing Kits are required to properly install the No 9 Silicone Masterflash.
Yes, the base is designed to seal effectively on most panel configurations and roof pitches, regardless of pipe location.
Absolutely! National Flues caters to both trade and retail customers, providing reliable delivery and secure online payments.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Wednesday, April 30th.
If you need faster stove or fireplace delivery please give us a call.
We can often reduce longer lead times if we pay the carrier £25 for express delivery.
Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee.
Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like on a retail basis. Give us a call if you find it cheaper and want to buy from us.
Read our review in our No 9 Silicone Masterflash 254-467mm (10 to 18 inch) - High Temp. buyers guide
Comprehensive Buyers Guide to the No 9 Silicone Masterflash
The No 9 Silicone Masterflash is a premium roofing accessory that offers a robust solution for sealing gaps around pipes on both profiled and flat panel roofs. Manufactured by National Flues, this high-performance silicone flashing is designed to withstand extreme weather conditions and temperature fluctuations from -74°C up to 260°C. In this guide, we delve into the product’s features, installation nuances, and the benefits you can expect – ensuring you have all the information needed to make an informed purchase.
Exceptional Durability and Performance
Constructed from high-quality silicone, the Masterflash is built to last. Whether you are dealing with harsh winter frost or extreme summer heat, this product promises to maintain its integrity over time. Its one-piece design is engineered to offer a seamless, watertight seal around your roof’s pipes, reducing the risk of water ingress and subsequent damage. This durability is essential, especially considering that repairs to roofing systems can be both costly and disruptive.
Designed for Versatility
The Masterflash is available in a versatile size range, making it suitable for roofs with external pipe diameters between 254mm and 467mm (10 to 18 inches). This crucial feature means that it can be confidently used in various roofing scenarios – from residential homes to commercial buildings. In addition, its adaptable design allows it to accommodate multiple roof pitches (up to 45°), ensuring a secure and reliable fit regardless of the pipe location.
Quick and Easy Installation
One of the primary advantages of the No 9 Silicone Masterflash is its easy installation process. Typically taking no longer than five minutes, the one-piece construction allows for a fast, hassle-free application. This not only saves valuable time but also reduces labour costs significantly. The straightforward process involves selecting the correct pipe opening, trimming with appropriate tools, sliding the flashing over the pipe, and then forming it to match your roof profile.
For optimal results, the flashing should be used in conjunction with three Standard Fixing Kits. These kits come with all the necessary components – sealant, screws, and caps – to deliver a secure and enduring installation. Additionally, optional accessories such as specialised trimming tools and high-quality lubricants (e.g. grease) are available to further enhance the ease and precision of installation. By exploring these add-ons, you can tailor the flashing installation to your specific requirements, ensuring a perfect fit.
Addressing Common Concerns and Objections
It is natural to have questions and even reservations when investing in a new product. One common concern is whether the material will stand up to extreme weather conditions. The No 9 Silicone Masterflash is specifically designed to resist UV light, ozone, and other adverse elements, ensuring long-lasting performance even under the most challenging environments. Its impressive temperature tolerance promises stability and durability, reducing the risk of frequent replacements.
Another frequent point of discussion is the cost-to-benefit ratio. While some flashing solutions on the market may seem appealing due to a lower upfront cost, they often incur higher long-term expenses due to recurring maintenance and replacements. The Masterflash, with its robust design and ease of installation, offers excellent value for money by reducing future repair needs and extending the lifespan of your roofing system.
Enhancing Installation with Optional Accessories
While the No 9 Silicone Masterflash is exceptionally designed to work as a standalone product with the supplied Fixing Kits, many users choose to complement their installation with optional accessories. Tools such as specialised trimming instruments or premium lubricants can simplify the process and ensure a more precise fit. It is advisable to search for these additional accessories if you desire a tailor-made installation experience that meets specific project demands.
Why Choose National Flues?
National Flues is renowned for delivering high-quality, reliable roofing solutions to both trade and retail customers across the UK. Our products undergo stringent quality checks, ensuring that you receive only the best. With a commitment to excellence and customer satisfaction, National Flues has established itself as a trusted brand in the industry. Choosing the No 9 Silicone Masterflash means not only investing in superior sealing technology but also in the peace of mind that comes with a product backed by a brand known for quality and durability.
Making the Right Decision for Your Roof
Selecting the appropriate flashing is a critical decision for the long-term health of your roofing system. The No 9 Silicone Masterflash offers an optimal blend of durability, versatility, and ease of use. Whether you are a professional installer or a homeowner embarking on a DIY project, this flashing solution is engineered to meet your needs. Its straightforward installation and robust performance make it a standout choice among roofing accessories.
In conclusion, the No 9 Silicone Masterflash is a superior choice for those seeking a durable, high-temperature flashing solution. With its easy installation, exceptional resistance to harsh weather, and adaptable design for various roof types, it addresses many common roofing challenges. Additionally, the availability of optional accessories means that you can customise your installation for enhanced performance and efficiency. The comprehensive thinking behind this product by National Flues ensures that your roof remains secure, energy-efficient, and aesthetically pleasing over time.
Buy now or call 01670 206 999.
Compatible and other products that may be of interest...
