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RES 3 SILICONE 275-450mm (11-18 inch) - High Temp. (12-301RESHT)

National Flues offers the premier RES 3 Silicone Flashing, ideal for tiled roofs requiring robust, high-temperature resistant sealing. This high temp roof flashing, engineered for external pipe diameters of 275-450mm, seamlessly combines durability with eco-friendly design. Its innovative pull tab mechanism and adaptable design ensure compatibility with a variety of roof pitches, making it the trusted choice for both residential and commercial installations.
The price you pay today £154.99
including free delivery Give us a call if you find it cheaper and we'll normally price match.
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At a Glance

    Designed for tiled roofs with pipe diameters of 275-450mm (11-18 inches)
    Withstands high temperatures: 225°C continuous, 260°C intermittent
    Constructed with an environmentally safe, lead-free aluminium base
    Features a SILICONE rubber upstand with a 20-year life
    Adaptable to roof pitches from 20° up to 45°
    Innovative pull tab design for quick, precise installation
Delivery Information +

We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, July 1st. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. 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. 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.

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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]

The RES 3 Silicone Flashing is designed specifically for tiled roofs and can accommodate external pipe diameters from 275mm to 450mm (11 to 18 inches). Constructed with an environmentally safe, lead-free aluminium base, this flashing is both durable and eco-friendly. The SILICONE rubber upstand boasts a 20-year life, ensuring long-term performance and reliability.

Its built-in 20° pitch allows it to adapt to nearly any roof pitch, including angles up to 45°. The innovative pull tab design and smooth tear grooves make installation a breeze, eliminating the need for cutting with a knife and enabling a perfect circular hole.

SKU: 12-301RESHT

Technical Specifications
SKU12-301RESHT
Base Size890 x 890mm
Pipe External Diameter275-450mm (11-18 inches)
Roof Pitch20u00b0 built-in, adaptable to 45u00b0
Temperature Range225u00b0C continuous, 260u00b0C intermittent
Durability20-year life for SILICONE upstand
MaterialLead-free aluminium base with SILICONE rubber upstand
• Begin by removing the tiles surrounding the pipe area to expose a clean installation surface. • Apply a generous layer of high-quality silicone sealant to the back of the flashing to ensure a watertight bond. • Carefully slide the flashing over the pipe ensuring it sits flush against the roof. • Use the innovative pull tab design to adjust the circular opening precisely to your pipe dimension. • Fasten the flashing securely to the roof before replacing any tiles. • Note: While the design simplifies the cutting process, always verify measurements and consider minor adjustments for a perfect fit. • Warning: Ensure safety measures are in place when working on a roof and consult a professional if uncertain.

The RES 3 Silicone Flashing is temperature resistant from -74°C to 260°C.

Yes, the aluminium base is lead-free and environmentally safe.

The SILICONE rubber upstand has a 20-year life expectancy.

The built-in 20° pitch allows the flashing to adapt to almost any roof pitch, including up to 45°.

Installation involves pulling the tab to the correct size, applying silicone sealant to the back, removing tiles around the pipe, sliding the flashing over the pipe, fastening it to the roof, and cutting tiles to fit around the top of the flashing.

No, the pull tab design eliminates the need for special tools, though you may use pliers or a knife if preferred.

Yes, National Flues offers reliable nationwide delivery for both retail and trade customers.

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