25-45 Degree Angle Aluminium Stainless Twin Wall Flashing

The Midtherm HTS Flat Roof Plate is a durable aluminium flashing designed to seal the gap between the chimney and roof, protecting against rain, snow, and other moisture.

  • Made in the UK
  • Stainless steel chrome finish
  • 5″ and 6″ diameters
  • Suitable for solid fuel and gas/ oil

Ideal for twin wall systems with a 25-45 degree pitch, it ensures long-lasting weatherproofing and easy installation.

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Estimated Delivery: 3-7 Working Days

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    FREE delivery on orders over £1,000

    • 14 day no-hassle returns
    • Full manufacturer warranty included
    • Family run since 2003
    • Installation by our in-house team Learn more →
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    • Dedicated aftercare & ongoing support

     

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    twin wall aluminium flashing 0 30 degree stainless
    25-45 Degree Angle Aluminium Stainless Twin Wall Flashing

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      Delivery, Click & Collect & Returns Information

      Click & Collect:

      We offer a free Click & Collect service on all products. Select “Click & Collect: Berkshire Showroom (RG7 2PQ)” at checkout to reserve your item.

      If the Add to Basket button is not available, please call 0118 970 1717 or email info@bonfire.co.uk
      to place a Click & Collect order.

      To ensure your item is ready for collection, please contact us in advance to confirm availability, opening times, and collection details.

      View our showroom information


      Delivery Information:

      Our current delivery times are approximately 2-3 working days, depending on stock levels at the time of your order. Once your order is placed, we will contact you to confirm your estimated delivery date and notify you of any potential delays.

      • Delivery costs are calculated at checkout based on your postcode location.
      • Free delivery on orders over £1,000 is available within 100 miles of our showroom (RG7 2PQ).
      • Free delivery is a small van/ sprinter 3 metre (receiver unloads) unless stated otherwise.

      We provide delivery within a 200 mile radius of our Reading, Berkshire showroom. To check if we cover your area, click the link below to learn more about our delivery information. For customers beyond this radius, our products are available for collection only online. Please contact our team for a tailored delivery solution, feel free to contact us at 0118 970 1717 or email us at info@bonfire.co.uk for a prompt, bespoke delivery quote.

      Goods are typically delivered on a small or tail-lift van dependant on your requirements, and if access is restricted (e.g., narrow lanes or steep drives), please contact us before placing your order to discuss alternative arrangements. For standard deliveries, a single driver will deliver the goods to the nearest accessible point. We recommend having at least one other person to assist with unloading.

      The driver can only move goods to the closest accessible area, such as a garage, but due to insurance/ health and safety restrictions, cannot bring items into your home. We advise checking the goods while the driver is still there (up to 15 minutes allowed); if any damage is found, please mark it on the delivery note.

      If you are unavailable on the scheduled delivery date, re-delivery charges may apply, and smaller items may require re-scheduling through the courier.

      Learn more about our delivery information


      Return And Exchange Information:

      We offer a 14 day return policy for customers who change their mind or are not satisfied with their purchase. Returns must be requested within 14 days of receiving your order, and the customer is responsible for return shipping costs.

      Our Non Returnable or Refundable Items Include:

      • All flue systems and chimney components
      • All bespoke and made to order items
      • All unique or one off pieces

      Please order carefully based on your application. Please ask our team any questions if you’re unsure on the product.

      Any damaged items must be reported within 48 hours of delivery to ensure a prompt resolution otherwise we cannot guarantee an exchange or replacement. Please ensure the product is returned in its original condition and packaging for a full refund or exchange.

      re-stocking fee of up to 30% may apply to returned or exchanged items as they will have to go back to the manufacturer. Please note that we are unable to accept returns on flue or chimney systems, as well as products with selectable options, made to order and bespoke items

      Learn more about our return and exchange policy

      The Midtherm HTS Flat Roof Plate is a premium aluminium flashing designed for twin wall systems with a 25-45 degree pitch. This durable and reliable flashing effectively seals the gap between your chimney and roof, preventing the entry of rain, snow, hailstones, or any other form of moisture.

      Crafted from high quality aluminium, it ensures long lasting protection while maintaining the integrity of your roofing system. The precise design allows for easy installation, making it an essential component for enhancing the weatherproofing of your roof and chimney.

      Ideal for flat roof installations, the Midtherm HTS Plate offers peace of mind, knowing your home is safeguarded against the elements.

      Features

      Temperature Resistance

      Capable of withstanding operating temperatures up to 450°C, making it suitable for demanding heating and ventilation systems.

      Innovative Design & Compatibility

      • Modern Aesthetic: Available in a bright annealed stainless steel finish or powder-coated black to suit various installations.

      Applications

      Suitable for a variety of domestic and commercial installations, including:

      • Solid Fuel
      • Oil and Gas
      • Biomass and Pellets
      • Ventilation and Extract Systems

      Comprehensive Warranty

      Enjoy peace of mind with a 20-year warranty for registered installations when installed and maintained correctly.

      Certifications & Assurance

      HTS Twin Wall components meet Class 1 Twin Wall standards, ensuring safety, efficiency, and compliance with modern heating requirements. Installation and use must adhere to proper sizing and design specifications to maintain warranty coverage.

      Why Choose Midtherm HTS?

      • Trusted Reliability: Manufactured by a family-run, environmentally conscious business with a nationwide distribution network.
      • Unmatched Quality: Built using advanced manufacturing and welding techniques for superior performance.
      • Adaptable Design: Compatible with a wide range of appliances and fuels for versatile applications.
      • Custom Finishes: Powder coating available in any BS or RAL color to complement your aesthetic preferences.

      Downloads:

      Specifications

      HT-S Technical Specification:

      Type Details
      Product Code: 08
      Description: 316 / 25mm Rockwool / 304
      Inner Skin: 0.5mm 316 (EN 1.4404)
      Outer Skin: 0.5mm 304 (EN 1.4301)
      Insulation: Mineral Wool 128kg/m3
      Insulation Thickness: 25mm

      Product Certification:

      Certificate Name Number Issued By
      CE Mark 0086-CPD-566560 BSI
      BS 476 WARRES – 128942 Faverdale
      BS EN 1856-1:2003 54522/1 BSRIA
      BS EN 1443:2003 55693/1 BSRIA

      Additional information

      Brand

      Midtherm

      Colour

      Stainless Steel

      Country Of Origin

      United Kingdom

      Fuel Type

      Gas, Multi Fuel

      Material

      Aluminium

      Warranty

      20 Years (if registered)

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