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Baxi 5122151 25/50 Deg Pitch Roof Flashing

Baxi

Baxi 5122151 25/50 Deg Pitch Roof Flashing

Baxi roof flashing for pitched roof flue installations at 25 to 50 degrees. Part number BAXI5122151.

Manufacturer part no.
BAXI5122151
Showing prices

£86.40

£72.00 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Baxi BAXI5122151 is a roof flashing intended for use where a flue passes through a pitched roof. It is manufactured by Baxi and supplied under the Baxi part numbering system. The flashing weathers the point where the flue terminal exits the roof covering, directing rainwater away from the penetration and keeping the roof structure below dry.

Signs this part needs replacing

  • Water staining or damp patches on the ceiling or roof timbers below the flue penetration
  • Cracked, split or perished flashing material around the flue outlet
  • Corrosion or surface breakdown of the flashing where it meets the roof covering
  • Flashing lifted or displaced after high winds or storm damage
  • Failed sealant or mastic lines at the flashing edges, allowing water tracking underneath

Before you order

  • Confirm the roof pitch at the flue penetration falls within the 25 to 50 degree range this flashing covers
  • Check the part number BAXI5122151 against the documentation supplied with the appliance or the existing flashing
  • Inspect the roof covering and any sealing materials around the penetration, as these may need renewing at the same time

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.