RES 3 SILICONE 275-450mm (11-18 inch) - High Temp.
At a Glance
- Withstands extreme temperatures from -74°C to 260°C
- Designed for external pipes from 275mm to 450mm (11-18 inches)
- Durable, high-quality silicone rubber upstand with 20 year lifespan
- Lead-free aluminium base ensuring environmental safety
- Built-in 20° pitch adaptable to roof angles up to 45°
- Easy installation with pull tab design and smooth tear grooving

Please Note: All dimensions refer to the internal diameter of flues. If unsure, please call 01670 206999 to ensure you choose the correct products.
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: [email protected]
- Info
- Specs
- Install
- FAQs
The RES 3 Silicone 275-450mm (11-18 inch) Flashing is the ideal solution for ensuring a secure seal around external pipes on tiled roofs. Engineered to withstand temperatures from -74°C to 260°C, this flashing kit features an environmentally-friendly lead-free aluminium base and a durable SILICONE rubber upstand that's built to last up to 20 years. The built-in 20° pitch offers adaptability to almost any roof angle, including steep pitches up to 45°.
Installation is straightforward with the pull tab design and smooth tear grooving, eliminating the need for precise cutting. Just size with pliers, apply silicone sealant, and secure in place. Designed for roof pipes with diameters between 275mm to 450mm (11 to 18 inches), with an aluminium base size of 31.5 inches square.
SKU: 32-301RESHT
Technical Specifications | |
---|---|
SKU | 32-301RESHT |
Aluminium Base Size | 890 x 890mm |
Pipe External Diameter | 275-450mm (11-18 inches) |
Roof Pitch | 20u00b0 to 45u00b0 |
Temperature Range | -74u00b0C to 260u00b0C |
Lifespan | Up to 20 years |
Design Features | Pull Tab Design, Smooth Tear Grooving |
Material | Lead-Free Aluminium Base with SILICONE Rubber Upstand |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Friday, April 4th. 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. If you find it cheaper within 48 hours, we'll refund the difference.
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National Flues Ltd Verdict
The RES 3 Silicone Flashing is a top-quality product that offers exceptional performance and durability. It's ideal for both retail and trade customers, with nationwide delivery and unbeatable prices. Secure your supply from National Flues today.
The RES 3 Silicone Flashing is used to create a weatherproof seal around external pipes on tiled roofs, ensuring durability and temperature resistance.
National Flues is a trusted supplier of high-quality fireplaces and flues to retail and trade customers across the UK. Known for unbeatable prices and reliable delivery, National Flues offers secure online payments and dedicated service.
