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No 7 Silicone Masterflash 152-280mm (6 to 11 inch) - High Temp. (32-702)
National Flues proudly presents the No 7 Silicone Masterflash – a high temperature flashing solution engineered for both profiled sheeting and flat panel roofs. Made from premium, UV-resistant silicone, this product delivers a secure, weatherproof seal for external pipes ranging from 152 to 280mm. Ideal for contractors and DIY enthusiasts alike, this robust flashing is an essential roofing accessory that complements your installation needs.
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£79.99
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At a Glance
Rapid, one-piece installation (approximately 5 minutes) Withstands extreme temperatures (-74°C to 260°C) Available for pipe diameters 152-280mm (6 to 11 inches) UV and ozone resistant high-grade silicone construction Versatile design for flat panel and profiled roofing
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The No 7 Silicone Masterflash, with a pipe diameter capacity of 152-280mm (6 to 11 inches), is a high-temperature flashing ideal for both profiled sheeting and flat panel surfaces. Engineered from high-grade silicone, it ensures maximum resistance to weathering from ozone and ultraviolet light. Its robust one-piece construction facilitates quick and effortless on-site installation, typically taking no more than five minutes.
Designed to form a reliable seal on a variety of roof configurations and pitches, its versatile base accommodates different pipe locations with ease. It boasts temperature resistance ranging from an impressive -74°C to 260°C, suitable for demanding environments. Follow these straightforward installation steps: select and trim the pipe opening with a Stanley knife or scissors, slide the flashing over the pipe (lubricate with grease if necessary), mould the flashing to the roof profile, apply sealant from the Fixing Kit, and fasten using the supplied screws and caps.
Note that TWO Standard Fixing Kits are required to complete the installation.
SKU: 32-702
Technical Specifications
SKU
32-702
Product Name
No 7 Silicone Masterflash 152-280mm (6 to 11 inch) - High Temp.
Pipe Diameter Capacity
152-280mm (6 to 11 inch)
Base Size
355 x 355mm
Pipe External
134-292mm
Roof Pitch
0-18u00b0
Operating Temperature Range
-74u00b0C to 260u00b0C
Installation Time
Approximately 5 minutes
Fixing Kits Required
2 Standard Fixing Kits
Installation Steps:
- Trim the pipe opening using a Stanley knife or scissors.
- Slide the silicone flashing over the pipe; apply grease if necessary for a smoother fit.
- Mould the flashing to closely follow the roof's profile for an optimal seal.
- Apply sealant from the provided Fixing Kit and secure with the supplied screws and caps.
Warning: Always ensure that both standard fixing kits are used to warrant full installation integrity.
The No 7 Silicone Masterflash is suitable for use with both profiled sheeting and flat panel surfaces.
The No 7 Silicone Masterflash can withstand temperatures from -74°C to 260°C.
Yes, the high-grade silicone construction of the No 7 Silicone Masterflash provides excellent resistance to weathering from ozone and ultraviolet light.
The one-piece construction of the No 7 Silicone Masterflash allows for a quick and easy installation, typically taking no more than five minutes.
You'll need a Stanley knife or scissors for trimming. The sealant and fastening tools are included in the Fixing Kit.
Two Standard Fixing Kits are required to install the No 7 Silicone Masterflash.
Yes, the base is designed to form a seal on most panel configurations and roof pitches, regardless of pipe location.
Delivery Information +
We work relentlessly to ensure you get your order fast.
Estimated delivery for this product is Monday, May 19th. Delivery times of products not in our warehouses depend on product availability and shipping. If you need a definitive delivery time give us a call.
If you need faster stove or fireplace delivery please also give us a call.
We can sometimes 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 7 Silicone Masterflash 152-280mm (6 to 11 inch) - High Temp. buyers guide
Introduction
The No 7 Silicone Masterflash from National Flues is a premium roofing accessory designed to provide an exceptional seal around external pipes on both flat panel and profiled roofs. Engineered from high-grade silicone, this product is capable of withstanding extreme temperatures ranging from -74°C to 260°C. Whether you are a professional tradesperson or a dedicated DIY enthusiast, the Masterflash is ideal for ensuring your roof maintains its integrity during even the harshest weather conditions.
Key Features and Benefits
Exceptional Durability:
The silicone construction is designed to resist degradation from ozone, UV radiation, and severe weather. This durability means that once installed, the flashing will maintain its performance over the long term, reducing the need for constant repairs or replacements.
Broad Temperature Range:
Operating efficiently from -74°C to 260°C, the Masterflash is suitable for varied climates and seasonal changes. This capacity ensures that your roof remains sealed and secure, whether in winter chills or summer heat.
Effortless Installation:
With a one-piece, pre-formed design, the flashing can be fitted in approximately five minutes. This quick installation process minimizes labour time and allows for prompt project completion.
Versatility in Application:
The design of the Masterflash accommodates external pipes between 152mm and 280mm, making it adaptable for a wide array of roofing scenarios. Its compatibility with both flat panel and profiled sheeting significantly broadens its usability, accommodating different architectural designs and roof pitches.
Installation Guidance
Installing the No 7 Silicone Masterflash is straightforward. Start by carefully selecting and trimming the pipe opening with a sharp tool such as a Stanley knife or scissors. Next, slide the flashing over the pipe; a small amount of grease can be used if the fit is tight. The flashing should then be moulded to conform to the roof’s profile. Finally, apply the sealant provided in the Fixing Kits and secure the flashing with the supplied screws and caps. Note that a secure and lasting installation is only achieved when both standard fixing kits are used. Please ensure all necessary safety measures are in place during installation.
Roofing Applications
This product is particularly beneficial for a variety of roofing applications. Whether you are retrofitting an existing roof or starting a new installation, the Masterflash is versatile enough to match different roof pitches and materials. Its robust design ensures that all potential weak points in the roof are effectively sealed, preventing water ingress and energy loss. For commercial and residential properties alike, the No 7 Silicone Masterflash delivers peace of mind in every installation.
Addressing Buyer Concerns
Is it compatible with my roof type?
Absolutely. The flashing has been tested on both flat panel and profiled roofing systems, ensuring a reliable seal regardless of your roof’s design. Its adaptability makes it suitable for almost all modern roofing applications.
How long does installation take?
The design focuses on ease of use, with most installations completed in as little as five minutes. This quick-fitting nature means less time spent on labour, reducing overall costs while maintaining high performance.
Will it withstand harsh weather?
Yes, the high-quality silicone is engineered to resist the harsh elements including UV exposure, ozone, and fluctuating temperatures. This makes it an ideal choice for roofs exposed to severe weather conditions.
What additional products might I require?
Complementary accessories such as additional sealing agents or specialised fixing kits may further enhance your roof's integrity. Exploring our catalogue of accessories can help ensure a complete, cohesive installation.
Optional Accessories and Enhancements
It is always worthwhile to check our range of optional accessories to match your roofing needs. Products such as advanced sealants, additional fixings, and maintenance kits can further improve the efficiency and durability of your installation. These add-ons are designed to work seamlessly with the No 7 Silicone Masterflash, providing a comprehensive solution for long-term performance.
Maintenance and Warranty
Regular maintenance of your roofing assemblies, including the flashing, is recommended to maximise the lifespan and performance of your installation. We advise routine checks, especially after extreme weather events, to ensure that no damage has occurred. Moreover, National Flues stands behind its products, offering warranties and customer support to help address any issues that might arise.
Conclusion
In summary, the No 7 Silicone Masterflash offers a blend of durability, ease of installation, and versatility that makes it an excellent choice for sealing external pipes on various roof types. With its robust performance in extreme temperatures and resistance to the elements, this product is a must-have for anyone looking to secure the efficiency and longevity of their roofing system. Invest in quality and reliability with National Flues, and ensure your roof is equipped to handle the challenges of modern weather conditions.
Buy now or call 01670 206 999.
Secure the No 7 Silicone Masterflash today for a weatherproof, high-performance seal.
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