Repairing or upgrading an existing roof penetration can be tricky, especially when pipes cannot be disconnected. The Master Flash Retrofit offers a practical solution, with a pre-split design that wraps neatly around pipes to create a secure, watertight seal without the need for dismantling. Made from durable EPDM or high-temperature silicone, it withstands weathering, UV, and ozone exposure, while its stepped cone design covers a wide range of pipe sizes.

Quick to install and supplied with fasteners and a stainless steel clip, it’s the ideal choice for both residential and commercial roof repairs where reliability and ease of installation are essential.

What is retrofit flashing?

Retrofit flashing is designed for use on existing roofs where a new pipe penetration has been added or where an old flashing has failed.

Instead of dismantling the pipe to install a standard flashing, a retrofit version can be wrapped around the pipe and secured in place, saving time and labour.

Why would I choose the Master Flash Retrofit over a standard flashing?

The Master Flash Retrofit is pre-split so it can be fitted around existing pipes without the need to disconnect or remove them. This makes it far easier and quicker to install on established roofs compared to a traditional flashing.

What materials is it made from?

The Retrofit flashing is manufactured from flexible EPDM or high-temperature silicone, both of which resist weathering, UV rays, and ozone.

This ensures the flashing provides a long-lasting seal even in exposed conditions.

Does it come with installation accessories?

Yes. The Master Flash Retrofit is supplied with fasteners and a stainless steel clip to secure the flashing once it is wrapped around the pipe, ensuring a neat and watertight finish.

What pipe sizes will it fit?

The Retrofit flashing is available in a range of sizes, covering pipe diameters from approximately 12 mm to 412 mm.

The stepped cone design means each unit can be cut to the required size on site.

How secure is the seal compared to a standard flashing?

When correctly installed, the Retrofit provides a seal that is just as watertight as a standard flashing.

The combination of flexible material, secure fasteners, and appropriate sealant ensures long-term performance.

Is it suitable for high-temperature applications?

Yes. The silicone version of the Master Flash Retrofit is designed to withstand higher temperatures, making it suitable for flues, chimneys, and hot exhaust pipes.

Can it be used on both residential and commercial roofs?

Yes. The Master Flash Retrofit is versatile enough to be used on domestic houses, industrial buildings, and agricultural roofs.

It is particularly useful for upgrading or repairing ageing installations.

How easy is it to install?

Installation is straightforward. The pre-split cone is wrapped around the pipe, fastened with the included hardware, and then sealed at the base to the roofing surface.

This makes it one of the quickest flashing solutions for repair work.

When is the Retrofit the best choice?

The Retrofit is the best option when you need to replace or upgrade an existing flashing but cannot remove the pipe.

It is especially useful in situations where downtime or dismantling would be costly or impractical.

Best Flashing for Existing Roof Repairs