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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.
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£28.99
Give us a call if you find it cheaper and we'll try to price match.

 

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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).

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Have Questions?
Phone: 01670 206999
Email: [email protected]

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

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 Pitch0-18u00b0
Temperature Range225u00b0C Continuous - 260u00b0C 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.
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 5 Silicone Masterflash 102-178mm (4 to 7 inch) - High Temp. buyers guide

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Transform your installation with the ultimate flashing solution – secure your No 5 Silicone Masterflash now.

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