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Best Flashing for Medium Pipe Sizes
When standard or large flashings don’t quite fit, the Master Flash Middy provides the perfect mid-sized solution. Designed specifically for medium-diameter pipes, it delivers the same durability and flexibility as the rest of the Master Flash range, making it ideal for ventilation ducts, plumbing stacks, small chimneys, and HVAC penetrations. Available in EPDM or high-temperature silicone with a formable aluminium base, it suits a variety of roof types and adapts to movement for a secure, watertight seal.
Easy to install and versatile enough for both new builds and repairs, the Middy is the go-to choice for reliable medium pipe flashing.
What is the Master Flash Middy?
The Master Flash Middy is a mid-sized flashing designed to bridge the gap between smaller flashings and large-scale options.
It offers the same durable performance as the rest of the Master Flash range but is optimised for medium-diameter pipes.
Why would I choose the Middy instead of a standard size?
Sometimes a standard or mini flashing is too small, and a large flashing is excessive. The Middy is specifically sized to cover the most common medium pipe diameters, saving time and ensuring a neat, professional finish without unnecessary bulk.
What types of applications is it best suited to?
The Middy is perfect for ventilation ducts, plumbing stacks, small chimneys, and HVAC penetrations where pipe sizes fall in the mid-range.
It’s widely used in both residential and light commercial settings.
What materials is it made from?
The Middy is available in EPDM or high-temperature silicone.
EPDM is excellent for general weather resistance, while silicone provides additional protection for high-heat applications such as flues or stove pipes.
What roof types can it be installed on?
It can be used on a variety of roof types including metal, tiled, and flat roofs.
Its aluminium base is flexible and can be formed to suit different profiles, ensuring a watertight seal.
Who is the Middy best suited for?
The Middy is ideal for contractors and homeowners dealing with medium-diameter pipes.
Its balance of size, flexibility, and ease of installation makes it a reliable choice for everyday projects where a smaller or larger flashing would not fit correctly.
What pipe sizes does it cover?
The Middy is designed specifically for mid-range pipe diameters, offering a convenient solution for pipes too large for mini flashings but smaller than those requiring heavy-duty options. Its stepped cone allows trimming for precise sizing.
Can it accommodate roof and pipe movement?
Yes. The cone is flexible and designed to expand, contract, and flex with both the pipe and the roof structure.
This prevents leaks caused by movement or thermal expansion.
How easy is it to install?
The Middy is straightforward to install. The cone is trimmed to the correct pipe size, fitted over the penetration, and the base is dressed to match the roof surface.
Fixings and sealant complete the installation for a secure and durable finish.
