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No 5 Silicone Masterflash 102-178mm (4 to 7 inch) - High Temp. (32-502)

National Flues presents the No 5 Silicone Masterflash 102-178mm (4 to 7 inch) - High Temp, a superior high temperature silicone flashing perfect for sealing gaps on metal roofs and profiled sheeting. Engineered for versatility and resilience, this premium product offers an ideal solution for both residential and commercial roofing applications, ensuring reliable protection and an impeccable finish.

What it’s for

The No 5 Silicone Masterflash is used to create a reliable seal around pipes on metal roofs, accommodating various configurations and high temperature scenarios.

Full features & benefits

  • ✓
    Extreme Temperature Tolerance: Ensures longevity and reliability in severe weather conditions, protecting your installation all year round.
  • ✓
    Robust Silicone Material: Provides outstanding durability and flexibility, adapting seamlessly to varied roof profiles while resisting degradation from ultraviolet light and ozone.
  • ✓
    Rapid Installation: The one-piece design minimises downtime, making it an ideal choice for busy professionals and DIY enthusiasts alike.
  • ✓
    Versatile Fit: Compatible with various roof pitches and panel configurations, offering a secure, customisable solution for multiple applications.
  • ✓
    All-Inclusive Fixing Kit: Simplifies the installation process by including all necessary components for a hassle-free seal.
No 5 Silicone Masterflash 102-178mm (4 to 7 inch) - High Temp.
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At a Glance

  • High temperature resistance (-74°C to 260°C)
  • Durable silicone construction designed for extreme weather
  • Quick one-piece installation (typically under 5 minutes)
  • Versatile design for both profiled sheeting and flat panel roofs
  • Complete Fixing Kit included with sealant, screws and caps

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.

Have Questions?
Phone: 01670 206999
Email: sales@nationalflues.com

The No 5 Silicone Masterflash 102-178mm (4 to 7 inch) - High Temp is engineered for excellence. Made from durable silicone, this flashing is specifically compounded to withstand extreme temperatures ranging from -74°C to 260°C. It's an ideal solution for securing a seal on both profiled sheeting and flat panel surfaces, regardless of pipe location.

The one-piece construction allows for rapid and straightforward installation, generally taking no longer than five minutes on-site. Additionally, its base is expertly designed to fit various panel configurations and roof pitches. To install, simply choose your pipe opening, trim the flashing, slide it over the pipe, mould it to the roof profile, apply sealant from the included Fixing Kit, and fasten using the screws and caps provided.

This robust and versatile product ensures a reliable seal, making it a must-have for professionals and DIY enthusiasts alike.

SKU: 32-502

Delivery Information* +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Monday, November 17th. This is based on current lead times. Bear in mind that it is a busy time of year. If you need a product delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. Visit our Shipping Information page for more information.

About National Flues Ltd +

We began over 30 years ago as a fireplace shop in the North East. We now supply hundreds of trade professionals and thousands of retail customers, all across the UK, every month. We are still a family owned business, lead by the MD Neil, and always try our best to deliver the best possible experience. We also price match, so give us a call if you find this cheaper and want to buy from us. Visit our about us page to read a bit more.

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Technical Specifications
SKU32-502
ItemNo 5 Silicone Masterflash 102-178mm (4 to 7 inch) - High Temp
Base Size280 x 280mm
Pipe External Diameter101-210mm
Roof Pitch0-18°
Temperature Range225°C Continuous - 260°C Intermittent
MaterialHigh Temp Silicone
For a swift and secure installation, begin by selecting the appropriate pipe opening size. Use a Stanley knife or scissors to trim the No 5 Silicone Masterflash to the desired length. Slide the flashing over the pipe and carefully mould it to match the roof’s profile. Next, apply the sealant provided in the Fixing Kit along the base, ensuring a watertight bond. Fasten the flashing in place using the supplied screws and caps. It is recommended to check the alignment and seal thoroughly after fixing to avoid any potential leaks. Caution: Always verify that the surface is clean and dry before application to ensure optimal adhesion.

The No 5 Silicone Masterflash is designed to resist temperatures from -74°C to 260°C.

Yes, this flashing is compatible with both profiled sheeting and flat panel surfaces.

Generally, it takes no longer than five minutes to install on-site.

You will need a Stanley knife or scissors to trim the flashing. The Fixing Kit (included) provides sealant, screws, and caps.

Yes, the base is designed to form a seal on most panel configurations and roof pitches, regardless of pipe location.

The Fixing Kit includes sealant, screws, and caps necessary for installation.

Absolutely, the flashings are compounded specifically for maximum resistance to weathering due to ozone and ultraviolet light.

 

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