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MI-Flash - No 5 Metal Black EPDM 101-178mm 280x280 (12-5LT)

Discover the MI-Flash No 5 Metal Black EPDM from National Flues – a premium chimney flashing engineered for durability, weather resistance, and effortless installation. Perfect for sealing chimney flues and pipe penetrations, this robust accessory, made from high-grade Black EPDM, delivers superior protection against the elements while enhancing the aesthetic appeal of your roof.
Now only £17.99
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At a Glance

  • Durable Black EPDM construction for long-lasting performance
  • Withstands extreme temperatures from -55°C to 135°C
  • Quick, one-piece design enabling installation in just 5 minutes
  • Versatile fit for flue sizes between 101-178mm and roof pitches from 0° to 18°
  • Comes with a complete Fixing Kit including sealant, screws, and caps
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, August 15th. This is based on current lead times for this product. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days, then please give us a call on 01670 206 999. 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.

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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.

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.

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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: [email protected]

Introducing the MI-Flash No 5 Metal Black EPDM, the ultimate solution for sealing your chimney flues. Crafted from high-quality EPDM, this flashing is designed to withstand extreme temperatures from -55°C to 135°C. EPDM is famed for its resistance to weathering, ozone, and UV light, ensuring your installation lasts for years.

The one-piece construction allows for quick and easy on-site installation, typically taking no longer than five minutes. Its versatile base is engineered to form a secure seal on various panel configurations and roof pitches, regardless of where the pipe is located. Installation is straightforward: simply choose the appropriate pipe opening and trim with a stanley knife or scissors, slide the flashing over the pipe, form it to the roof profile, apply sealant, and secure with the screws and caps provided in the Fixing Kit.

One Standard Fixing Kit is needed for installation.

SKU: 12-5LT

Technical Specifications
Base Dimensions280 x 280mm
Pipe External101 - 178mm
Roof Pitch0 - 18°
Temperature Rating100°C Continuous, 135°C Intermittent
MaterialBlack EPDM Rubber
Installation IncludesStandard Fixing Kit (Sealant, Screws, Caps)
Installation is straightforward. Begin by selecting the appropriate pipe opening and then trim the flashing with a Stanley knife or scissors to suit the required size. Carefully slide the flashing over the pipe, ensuring it conforms to your roof profile. Apply a generous bead of sealant and secure using the screws and caps provided in the Fixing Kit. Take care to ensure a complete, gap-free seal and adhere to all recommended safety protocols when working on the roof.

This flashing can withstand temperatures ranging from -55°C to 135°C.

It is made from EPDM, a material known for excellent resistance to weathering, ozone, and UV light.

Installation typically takes no longer than five minutes.

Yes, its base is designed to form a seal on most panel configurations and roof pitches.

You will need a Stanley knife or scissors to trim the opening and the Fixing Kit, which contains sealant, screws, and caps.

While designed for exterior use due to its weather-resistant properties, it can also be used indoors if needed.

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

What our experts say!

"At National Flues, we highly recommend the MI-Flash No 5 Metal Black EPDM for its excellent durability and easy installation. This product is perfect for both retail and trade customers, with reliable delivery across the UK."

The MI-Flash No 5 Metal Black EPDM is used for sealing chimney flues and other pipe penetrations through roofs, ensuring a weather-tight seal.

National Flues is a trusted provider of high-quality chimney flues and fireplaces, catering to both retail and trade customers across the UK. Known for competitive pricing and reliable delivery, we aim to provide top-notch products and services to our valued customers.

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