About Master Flow™ Pivot™ Pipe Boot Flashing

The Master Flow™ Pivot™ Pipe Boot Flashing's durable, all-metal design helps provide tough protection at a notorious source for leaks on roofs - plumbing pipe penetrations. With no seals, gaskets, or collars that can degrade and leak when exposed to the elements, you can enjoy a neat, streamlined look on your new/existing roof. The Master Flow™ Pivot™ Pipe Boot Flashing passes the 110 mph wind-driven rain test per TAS-100(A) and the UL 2218 Class 4 impact resistance test.1 It’s warranted against leaks caused by manufacturing defects or ordinary wear and tear up to 50 years (or as long as the warranty on the adjacent roof cladding)2 and eligible for enhanced warranty coverage when installed by a contractor certified by GAF3 in connection with a qualifying roofing system.4


This product can be used to comply with certain FORTIFIED Roof™ requirements. Visit gaf.com/fortified and current FORTIFIED Home™ Standard available at fortifiedhome.org for details. Applicable in the U.S. only.


1 Testing performed under controlled laboratory conditions. Hail damage is not covered under GAF limited warranties.

2 See Master Flow™ Pivot™ Pipe Boot Flashing Limited Warranty for complete coverage and restrictions.

3 Contractors enrolled in GAF certification programs are not employees or agents of GAF, and GAF does not control or otherwise supervise these independent businesses. Contractors may receive benefits, such as loyalty rewards points and discounts on marketing tools from GAF for participating in the program and offering GAF enhanced warranties, which require the use of a minimum amount of GAF products.

4 See GAF System Plus™, Silver Pledge™, and Golden Pledge® Limited Warranties for complete coverage and restrictions.

Designed & Tested Tough by GAF*

Tough, all-metal design and other unique features to help it stand up to the elements.

*Passes 110 mph wind-driven rain per TAS-100(A) and Passes UL 2218 Class 4 impact resistance test under controlled laboratory conditions. Hail damage is not covered under GAF limited warranties.

Master Flow™ Pivot™ Pipe Boot Flashing

A Pivotal Roofing Accessory

Find out why the Master Flow™ Pivot™ Pipe Boot Flashing offers a new angle on plumbing pipe protection for contractors who need a premium roofing accessory that provides a multitude of benefits.

GAF Rooftop Accessories

Streamline the look of your roof and help prevent leaks at plumbing pipe penetrations.
Homeowners reviewing GAF warranty options

Master Flow™ Pivot™ Pipe Boot Flashing is a qualifying accessory for GAF enhanced warranties

Customers tell us the most confusing part of buying a roof is choosing the warranty. So here’s a quick overview of some of the warranties available*.
Visit our limited warranty comparison guide. See applicable limited warranty for complete coverage and restrictions.

Product Documentation

View All Documents

How to Install Master Flow™ Pivot™ Pipe Boot Flashing

  1. Plumbing pipe on roof surrounded by GAF roof deck underlayment.

    Step 1

    Install roof deck protection and leak barrier, then shingle up to the plumbing pipe.
  2. GAF contractor lining up the Master Flow Pivot roof boot over plumbing pipe.

    Step 2

    Use the ball and socket rooftop pitch adjustment to ensure the Pivot is oriented vertically.
  3. GAF contractor sliding the Master Flow Pivot roof pipe boot over plumbing pipe.

    Step 3

    Center and slide the Pivot base flashing over the pipe.
  4. Contractor turning Pivot cap clockwise to ensure Master Flow Pivot roof vent boot is locked.

    Step 4

    Ensure the Pivot pipe insert is securely locked into the Pivot cap by turning clockwise.
  5. GAF contractor aligning Master Flow Pivot pipe flashing insert with plumping pipe opening.

    Step 5

    Align the pipe insert with the inside opening of the plumbing pipe.
  6. Contractor firming pushing cap down on Master Flow Pivot roof boot by GAF.

    Step 6

    Firmly push the cap down, ensuring the cap overlaps the base flashing by at least 1” (25.4 mm).
  7. Contractor with hammer nailing the GAF Master Flow Pivot Pipe Boot Flashing in place.

    Step 7

    Nail the base flashing in-place through the pre-punched fastening guides.
  8. GAF contractor shingling around the Master Flow Pivot roof pipe boot.

    Step 8

    Shingle around the Pivot using the pre-formed shingle termination guides.

Related products

View related products from GAF

Parts of a GAF roofing system

Residential warranties
GAF ridge cap shingles

Ridge cap shingles

The finishing touch that helps defend against leaks at the hips and ridges.
View products
GAF residential attic ventilation

Attic ventilation

Helps to reduce attic moisture and heat.
See products
GAF residential roofing accessories

Rooftop accessories

Specialty roofing accessories designed to enhance the performance of your roofing system.
See products
GAF residential roofing starter strips

Starter strip shingles

Helps to guard against shingle blow-offs.
See products
GAF roof deck protection

Roof deck protection

Helps shield the roof deck from moisture infiltration.
See products
GAF residential leak barriers

Leak barrier

Helps prevent leaks caused by wind-driven rain and ice dams.
See products