OATEY 11565 2.5" Galvanized El...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$80.00
$30.00
OATEY 11565 2.5" Galvanized Electrical Service Mast

OATEY 11565 2.5" Galvanized Electrical Service Mast

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Model: 11565
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$80.00
$30.00
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2.5" Galvanized Electrical Service Mast

  • Features

    • For warranty product details, refer to the Oatey Limited Warranty document
    • Collar unattached from flashing base for Electrical Service Mast applications
    • Self-sealing collar slides over pipe and requires no caulking
    • 12.5" x 8.75" 28 gauge galvanized base
    • Do not use petroleum based products or paint on flashing collar or plastic base
    • Not for hot-mopped or built-up roofs
    • 1-1/2" Galvanized flashing


11565 - spec sheet

Manufacturer Resources

Product Specs

Base Size Diameter:
18" X 18"
Volume:
0.141
Department:
Plumbing
Product Group:
Plumbing
Product Subgroup:
Fittings
Product Type:
Metal Fittings
Product Finish:
Unfinished
Product Material:
Galvanized Steel
Product Weight:
0.8

OATEY 11565 – Frequently Asked Questions

1) Will the Oatey 11565 flashing fit a 2-1/2 inch electrical service mast pipe?
Yes. The Oatey 11565 is sized for 2-1/2 inch mast pipe, and the self-sealing collar slides down over the pipe once the base is set on the roof. The collar ships unattached from the flashing base specifically so it can be dropped over a mast that is already run through the roof deck.
2) Does this Oatey service mast flashing need caulk or roof sealant around the pipe?
No caulking is required at the collar. The collar is self-sealing and seals against the mast pipe as it slides down over it. Keep petroleum based products and paint off the collar and the plastic base, since those will degrade the seal.
3) Can I use the Oatey 11565 mast flashing on a flat built-up or hot-mopped roof?
No. This flashing is not for hot-mopped or built-up roofs. Use it on shingle or comparable sloped roofing where the galvanized base can be shingled in; for a hot-mopped or built-up assembly you need a flashing rated for that system.
4) What is the Oatey 11565 made of, and will it rust on an exposed roof?
Both the flashing base and the collar are galvanized steel, supplied unfinished. Galvanizing is the corrosion protection here, so leave it as-is rather than painting it, since paint is not to be applied to the collar.
5) Is an Oatey mast flashing different from a regular plumbing vent pipe flashing?
Yes, and the difference matters on the job. On a standard vent flashing the collar is fixed to the base, so the flashing drops over the stack from above. On the 11565 the collar ships separate from the base for electrical service mast work, where the mast is already set and the base has to be worked in underneath before the collar slides down and seals.
6) What part number do I order for a 2-1/2 inch galvanized electrical service mast flashing from Oatey?
Oatey part number 11565. That is the 2-1/2 inch galvanized service mast flashing with the unattached self-sealing collar, and it ships as a single model with no size or finish options to specify.
7) How heavy is the Oatey 11565 galvanized mast flashing for shipping a pallet of them?
Each unit runs 0.8 lb with a shipping volume of 0.141, so a case quantity for a multi-family or tract job stays light and stacks flat. The base is 28 gauge galvanized steel.
How fast can I get the OATEY 11565 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the OATEY 11565 come with a warranty?
Absolutely. The OATEY 11565 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the OATEY 11565?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the OATEY 11565 from ZenSupply?
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