Roof flashings are crucial for maintaining the integrity and longevity of a building's roof. Constructed from durable materials like metal, rubber, or plastic, they are designed to withstand harsh weather and resist corrosion. Flashings prevent water or moisture from penetrating roofing joints or intersections, such as chimneys, vent pipes, and skylights. By forming a watertight barrier, roof flashings redirect water away from these vulnerable areas, protecting the roof structure, insulation, and interior from potential water damage.

Roof Flashings

Products 1-48 of 166
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Oatey, #11830 Galvanized Base Roof Flashing 0.5-1.0 in. -...
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $7.80
Availability: In Stock
Oatey Item #: OATEY-11830 -

    Oatey® Galvanized No-Calk® Solar Flashings are designed for commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. Self-sealing collar slides over pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. 28 gauge Galvanized steel baseCollar seals pipe ranging from 1/2 In to 1 In to accomodate solar panel mounting system postsRated 180°F continuous heat and approved for...

    Oatey, #11919 Thermoplastic Base Multi-Size Roof Flashing...
    Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
    Price: $6.45
    Availability: In Stock
    Oatey Item #: OATEY-11919 -

      Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. 1-1/2 in.–3 in. thermoplastic roof flashing11-1/2 in. x 15 in. non-fading, non-cracking plastic basePatented All-Flash® collar with tear-away ring for many pipe...

      Oatey, #11871 Galvanized Base Multi-Size Roof Flashing...
      Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
      Price: $9.10
      Availability: In Stock
      Oatey Item #: OATEY-11871 -

        Reduces inventory: 2 multi-size flashings fit 4 pipe sizes. One flashing accommodates 1-1/2", 2", and 3" pipes; the other, 3" and 4" pipes. Ring on collar tears off, allowing flashings to seal different pipe diameters. Simply remove the inner ring at the indicated point on the collar and you'll have a perfect leakproof fit for pipes from 1-1/2" to 4". Slides over pipe - for pitch to 40 degrees. Rustproof, stamped galvanized, 24 or 28 gauge. Non-fading, non-cracking and non-rusting bases and...

        Oatey, #11853 Galvanized Base Roof Flashing 2 in.
        Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
        Price: $8.35
        Availability: In Stock
        Oatey Item #: OATEY-11853 -

          Oatey®Galvanized No-Calk® Roof Flashings are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Patented All-Flash® design allows use on multiple pipe sizes28 gauge Galvanized steel baseRated 180°F continuous heat and approved for Type B...

          Oatey, #12945 Aluminum Base Multi-Size Roof Flashing 1.5-3...
          Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
          Price: $10.15
          Availability: In Stock
          Oatey Item #: OATEY-12945 -

            Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. 1-1/2 in.–3 in. aluminum roof flashing11 in. x 14-1/2 in. base is easy to shapePatented All-Flash® collar with tear-away ring for many pipe sizesSelf-sealing...

            Oatey, #11920 Thermoplastic Base Multi-Size Roof Flashing...
            Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
            Price: $7.05
            Availability: In Stock
            Oatey Item #: OATEY-11920 -

              Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. 3 in.–4 in. thermoplastic roof flashing12 in. x 16 in. non-fading, non-cracking plastic basePatented All-Flash® collar with tear-away ring for many pipe...

              Oatey, #11910 Thermoplastic Base Roof Flashing 3 in.
              Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
              Price: $6.80
              Availability: In Stock
              Oatey Item #: OATEY-11910 -

                Oatey's durable Thermoplastic No-Calk® Roof Flashings with standard bases are designed for commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Roof flashing slides over vent pipe for pitch to 45 degreesNon-fading, non-cracking rigid black thermoplastic baseNon-fading...

                Oatey, #12920 Aluminum Base Roof Flashing 1.25-1.5 in.
                Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                Price: $9.00
                Availability: In Stock
                Oatey Item #: OATEY-12920 -

                  Oatey® Aluminum No-Calk® Roof Flashings with rustproof stamped aluminum base are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Rustproof stamped aluminum base allows for easy shaping of flashingRated 180°F continuous heat and approved for Type B...

                  Oatey, #11840 Galvanized Base Roof Flashing 1.25-1.5 in.
                  Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                  Price: $8.20
                  Availability: In Stock
                  Oatey Item #: OATEY-11840 -

                    Oatey®Galvanized No-Calk® Roof Flashings are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Patented All-Flash® design allows use on multiple pipe sizes28 gauge Galvanized steel baseRated 180°F continuous heat and approved for Type B...

                    Oatey, #11866 Galvanized Base Roof Flashing 3 in.
                    Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                    Price: $9.05
                    Availability: In Stock
                    Oatey Item #: OATEY-11866 -

                      Oatey®Galvanized No-Calk® Roof Flashings are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Patented All-Flash® design allows use on multiple pipe sizes28 gauge Galvanized steel baseRated 180°F continuous heat and approved for Type B...

                      Aztec Washer Company RD101GG - Universal Master Flash...
                      Made of Gray EPDM, resistant to weathering from ozone and ultraviolet light
                      Price: $6.75
                      Availability: In Stock
                      Aztec Washer Company, Inc. Item #: 204-RD101GG -

                        The Aztec Washer RD101GA Extreme Angle Master Flash is a small-size flashing for steep metal roofs with slopes from 35° to 65°. Made from gray EPDM, it resists UV, ozone, and weathering. A built-in 40° pitch and flexible, trim-to-fit sleeve provide a secure, watertight seal around smaller pipe penetrations while the compact base conforms to roof profiles. Key Features: Gray EPDM compound engineered for long-term resistance to UV, ozone, and weathering. Built-in 40° pitch adapts to steep roof...

                        Oatey, #11908 Thermoplastic Base Roof Flashing 1.25-1.5...
                        Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                        Price: $6.45
                        Availability: In Stock
                        Oatey Item #: OATEY-11908 -

                          Oatey's durable Thermoplastic No-Calk® Roof Flashings with standard bases are designed for commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Roof flashing slides over vent pipe for pitch to 45 degreesNon-fading, non-cracking rigid black thermoplastic baseNon-fading...

                          Portals Plus Medium Pipe Boot White TPO 1"-6"
                          Medium White TPO 1"-6"
                          Price: $27.95
                          Availability: In Stock
                          Portals Plus Item #: POR-46209 -

                            The Portals Plus Medium Pipe Boot White TPO 1″-6″ (POR-46209) is designed for single-pipe roof penetrations up to 6″ in diameter. It features a 70 mil TPO injection-molded body and includes an integrated Snaplock stainless steel clamp for securing the boot to the pipe. A compression-molded 60 mil EPDM or Neoprene body is included depending on base. It may be adapted for square tubing or angle-iron through optional adapters. This boot is suitable for use with TPO roofing membranes and is white...

                            Oatey, #11909 Thermoplastic Base Roof Flashing 2 in.
                            Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                            Price: $6.50
                            Availability: In Stock
                            Oatey Item #: OATEY-11909 -

                              Oatey's durable Thermoplastic No-Calk® Roof Flashings with standard bases are designed for commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Roof flashing slides over vent pipe for pitch to 45 degreesNon-fading, non-cracking rigid black thermoplastic baseNon-fading...

                              Oatey, #12943 No-Calk All-Flash Color-Flash Roof Flashing...
                              Matches the color of your roof
                              Price: $12.95
                              Availability: In Stock
                              Oatey Item #: OATEY-12943 -

                                Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. Patented All-Flash® collar design allows use on multiple pipe sizesRustproof stamped aluminum base allows for easy shaping of flashingRated 180°F continuous heat...

                                Oatey, #12956 Aluminum Base Multi-Size Roof Flashing 3-4...
                                Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
                                Price: $11.85
                                Availability: In Stock
                                Oatey Item #: OATEY-12956 -

                                  Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. in. aluminum roof flashing12 in. x 15 in. base is easy to shapePatented All-Flash® collar with tear-away ring for many pipe sizesSelf-sealing collar slides over...

                                  Oatey, #11877 Galvanized Base Multi-Size Roof Flashing 3-4...
                                  Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
                                  Price: $9.60
                                  Availability: In Stock
                                  Oatey Item #: OATEY-11877 -

                                    Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. 3 in.–4 in. 28-gauge galvanized steel roof flashing12 in. x 15 in. basePatented All-Flash® collar with tear-away ring for many pipe sizesSelf-sealing collar slides...

                                    Oatey, #12933 Aluminum Base Roof Flashing 2 in.
                                    Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                                    Price: $9.25
                                    Availability: In Stock
                                    Oatey Item #: OATEY-12933 -

                                      Oatey® Aluminum No-Calk® Roof Flashings with rustproof stamped aluminum base are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Rustproof stamped aluminum base allows for easy shaping of flashingRated 180°F continuous heat and approved for Type B...

                                      Marathon Roofing Products Universal Mara-Boot
                                      A permanent watertight and maintenance free roof penetration system
                                      Price: $82.14
                                      Availability: In Stock
                                      Marathon Roofing Products Item #: 305-MARABOOT -

                                        The Marathon MARABOOT Universal Mara-Boot provides a permanent, watertight, and maintenance-free solution for roof penetrations. Featuring a heavy-duty aluminum base and a mechanically sealed EPDM cap, this boot delivers maximum resistance to weathering, ozone, UV, and extreme hot and cold temperatures. Each unit is designed to accommodate a wide range of pipe sizes, making it versatile for various roofing applications. Key Features: Universal EPDM cap accommodates multiple pipe sizes Aluminum...

                                        Oatey, #11911 Thermoplastic Base Roof Flashing 4 in.
                                        Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                                        Price: $7.80
                                        Availability: In Stock
                                        Oatey Item #: OATEY-11911 -

                                          Oatey's durable Thermoplastic No-Calk® Roof Flashings with standard bases are designed for commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Roof flashing slides over vent pipe for pitch to 45 degreesNon-fading, non-cracking rigid black thermoplastic baseNon-fading...

                                          Oatey, #11879 Galvanized Base Roof Flashing 4 in.
                                          Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                                          Price: $10.95
                                          Availability: In Stock
                                          Oatey Item #: OATEY-11879 -

                                            Oatey®Galvanized No-Calk® Roof Flashings are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Roof flashing slides over DWV pipe for pitch to 40 degreesMade of rust-proof, stamped 29 gauge galvanized steelNon-fading sealing collarApproved for Type B...

                                            Aztec Washer Company SF101BA - Solar Master Flash 3/4" -...
                                            For maximum resistance to weathering due to ozone and ultraviolet light
                                            Price: $9.95
                                            Availability: In Stock
                                            Aztec Washer Company, Inc. Item #: 204-SF101BA -

                                              These flashings are compounded specifically for maximum resistance weathering due to ozone and ultraviolet light. A C-12 ASTM additional requirement was added to assure conformance to the most stringent ozone/weathering specifications available The base of the flashing is designed to form a seal on most panel configurations and roof pitch regardless of pipe location. The pitch canal allows for maximum flexibility, accommodating up to a 60 degree pitch without affecting performance. Flashing...

                                              Oatey, #12801 Aurora No-Calk Solar Flashing 1/2 in. -...
                                              For applications where a watertight seal for roof penetrations around the piping for...
                                              Price: $8.85
                                              Availability: In Stock
                                              Oatey Item #: OATEY-12801 -

                                                Oatey® Aurora™ No-Calk® Solar Flashings are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the piping for solar mounting systems. Self-sealing collar slides over pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. 1/2" to 1" Galvanized Roof Flashing28 Gauge 9.5" x 12.5" galvanized steel baseFor pitch from 0-40°Rated 180°F continuous heat and approved for Type B...

                                                Portals Plus 29430, 5-Hole Pipe Portal Flashing System, 5...
                                                5-Cap Cover & Caps w/ C-555 Black Caps
                                                Price: $198.75
                                                Availability: In Stock
                                                Portals Plus Item #: POR-29430 -

                                                  Portals Plus 29430 is a five-hole Pipe Portal flashing cover that includes five C-555 black EPDM caps and stainless steel clamps. Designed for sealing multiple roof penetrations, it features precut port holes and molded sealing ribs for faster installation and a long-lasting, watertight connection. The EPDM rubber is resistant to ozone and UV rays and offers a wide service temperature range from −60°F to +270°F. This assembly is used in conjunction with a compatible roof curb to ensure secure...

                                                  Oatey, #12954 No-Calk All-Flash Color-Flash Roof Flashing...
                                                  Matches the color of your roof
                                                  Price: $15.65
                                                  Availability: In Stock
                                                  Oatey Item #: OATEY-12954 -

                                                    Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. Rustproof stamped aluminum base allows for easy shaping of flashingBlack powder coated baseRated 180°F continuous heat and approved for Type B installationsMetal...

                                                    Aztec Washer Company SQ301BA - Master Flash Square...
                                                    Made of Black EPDM, resistant to weathering from ozone and ultraviolet light
                                                    Price: $11.45
                                                    Availability: In Stock
                                                    Aztec Washer Company, Inc. Item #: 204-SQ301BA -

                                                      The Aztec Washer SQ301BA Standard Master Flash is a medium-to-large size pipe flashing designed for residential and commercial roofs. Constructed from black EPDM, it provides long-term resistance to UV, ozone, and weathering. The flexible sleeve accommodates vibration and pipe movement while marked trim lines allow easy on-site customization. Its soft base conforms to a variety of roof panel profiles and slopes for a secure, watertight seal. Key Features: Black EPDM material for superior...

                                                      Aztec Washer Company RD101BE - Universal Master Flash...
                                                      Made of Black EPDM, resistant to weathering from ozone and ultraviolet light
                                                      Price: $6.75
                                                      Availability: In Stock
                                                      Aztec Washer Company, Inc. Item #: 204-RD101BE -

                                                        The Aztec Washer RD101BA Extreme Angle Master Flash is a small-size flashing designed for steep metal roofs with slopes between 35° and 65°. Constructed from black EPDM, it offers long-term resistance to UV, ozone, and weathering. Its built-in 40° pitch allows for proper alignment on extreme slopes, while the flexible trim-to-fit sleeve provides a secure seal around smaller pipe penetrations. Key Features: Black EPDM construction for superior weather, ozone, and UV resistance. Built-in 40°...

                                                        Oatey, #12803 Aurora No-Calk Solar Flashing 1-1/2 in. - 3...
                                                        For applications where a watertight seal for roof penetrations around the piping for...
                                                        Price: $8.85
                                                        Availability: In Stock
                                                        Oatey Item #: OATEY-12803 -

                                                          Oatey Aurora No-Calk Solar Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the piping for solar mounting system is required. Low profile flashing collar design provides a clean finished appearance. Solar Flashings are available in Soft Aluminum, Aluminum and Galvanized Bases.

                                                          Oatey, #12802 Aurora No-Calk Solar Flashing 1/2 in. -...
                                                          For applications where a watertight seal for roof penetrations around the piping for...
                                                          Price: $11.55
                                                          Availability: In Stock
                                                          Oatey Item #: OATEY-12802 -

                                                            Oatey® Aurora™ No-Calk® Solar Flashings are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the piping for solar mounting systems. Self-sealing collar slides over pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. 1/2 in. to 1-1/2 in. Galvanized Roof Flashing28 Gauge 9.5 in. x 12.5 in. galvanized steel baseFor pitch from 0-40°Rated 180°F continuous heat and...

                                                            Oatey, #12946 Aluminum Base Roof Flashing 3 in.
                                                            Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                                                            Price: $10.45
                                                            Availability: In Stock
                                                            Oatey Item #: OATEY-12946 -

                                                              Oatey® Aluminum No-Calk® Roof Flashings with rustproof stamped aluminum base are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Rustproof stamped aluminum base allows for easy shaping of flashingRated 180°F continuous heat and approved for Type B...

                                                              Aztec Washer Company SQ101BA - Master Flash Square...
                                                              Made of Black EPDM, resistant to weathering from ozone and ultraviolet light
                                                              Price: $7.35
                                                              Availability: In Stock
                                                              Aztec Washer Company, Inc. Item #: 204-SQ101BA -

                                                                The Aztec Washer SQ101BA Standard Master Flash is a pipe flashing designed for small to medium roof penetrations. Constructed from black EPDM, it provides excellent resistance to UV, ozone, and weathering. The sleeve can be trimmed on-site to fit the exact pipe size, while its flexibility accommodates vibration and pipe movement. The conforming base molds securely to roof panel profiles and slopes, ensuring a watertight seal. Key Features: Black EPDM construction for long-term durability....

                                                                Oatey, #11873 No-Calk All-Flash Color-Flash Roof Flashing...
                                                                Matches the color of your roof
                                                                Price: $12.05
                                                                Availability: In Stock
                                                                Oatey Item #: OATEY-11873 -

                                                                  Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. Roof flashing slides over DWV pipe for pitch to 40 degreesMade of rust-proof, stamped 29 gauge galvanized steelBlack Painted baseNon-fading sealing collarApproved...

                                                                  Oatey, #12806 SideFlash Vertical Flashing 3 in. - 6 in.
                                                                  Where a watertight seal of piping penetrations through outside walls is required
                                                                  Price: $10.05
                                                                  Availability: In Stock
                                                                  Oatey Item #: OATEY-12806 -

                                                                    Oatey® Sideflash™ Vertical Flashings are designed to seal around piping, electrical and other utility penetrations through outside walls. The product features a hard plastic panel with an elastomeric collar that seals around the pipe. It is designed to be installed behind the house wrap or building paper to become part of the building envelope. Oatey products have earned the trust of plumbing professionals for over 100 years. Designed with a tear out collar to accommodate pipe size use from 3...

                                                                    Oatey, #12959 Aluminum Base Roof Flashing 4 in.
                                                                    Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
                                                                    Price: $11.75
                                                                    Availability: In Stock
                                                                    Oatey Item #: OATEY-12959 -

                                                                      Oatey® Aluminum No-Calk® Roof Flashings with rustproof stamped aluminum base are designed for use in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. The self sealing collar slides over the pipe and requires no caulking. Oatey products have earned the trust of plumbing professionals for over 100 years. Rustproof stamped aluminum base allows for easy shaping of flashingRated 180°F continuous heat and approved for Type B...

                                                                      Aztec Washer Company RD201GG Universal Master Flash Round...
                                                                      Made of Gray EPDM, resistant to weathering from ozone and ultraviolet light
                                                                      Price: $8.85
                                                                      Availability: In Stock
                                                                      Aztec Washer Company, Inc. Item #: 204-RD201GG -

                                                                        The Aztec Washer RD201GA Extreme Angle Master Flash is a medium-size flashing designed for steep roof slopes between 35° and 65°. Constructed from gray EPDM, it resists UV, ozone, and weathering for long-lasting performance. Its built-in 40° pitch ensures proper fit on extreme roof angles, while the flexible trim-to-fit sleeve provides a watertight seal for pipe penetrations from 1-1/4 in to 3 in.Key Features: Gray EPDM compound engineered for weather, UV, and ozone resistance. Built-in 40°...

                                                                        Aztec Roofing Company SQ201BA - Master Flash Square...
                                                                        Made of Black EPDM, resistant to weathering from ozone and ultraviolet light
                                                                        Price: $9.95
                                                                        Availability: In Stock
                                                                        Aztec Washer Company, Inc. Item #: 204-SQ201BA -

                                                                          The Aztec Washer SQ201BA Standard Master Flash is a medium-size pipe flashing designed for reliable sealing on residential and commercial roofs. Made from black EPDM, it resists ozone, UV rays, and weathering for long-term durability. The sleeve flexibility accommodates pipe expansion, contraction, and vibration, while trim-to-fit markings allow on-site customization. Its soft base conforms to roof panel shapes and pitches, ensuring a secure, watertight installation. Key Features: Black EPDM...

                                                                          Aztec Washer Company RF101GP - Retrofit Master Flash...
                                                                          For existing applications where a standard pull over flashing cannot be installed.
                                                                          Price: $18.75
                                                                          Availability: In Stock
                                                                          Aztec Washer Company, Inc. Item #: 204-RF101GP -

                                                                            Aztec Washer RF101GP is a split, wraparound retrofit flashing for cases where a standard boot can’t slide over the top of the pipe. Made from UV- and ozone-resistant gray EPDM, size #1 covers smaller conduits and pipes and conforms to common panel profiles and roof pitches. Marked cut lines simplify sizing, snap-on fasteners speed installation, and a collar channel accepts a zip tie to finish the seal. Key Features: • Split, wraparound design for true retrofit installs — no disassembly of...

                                                                            Aztec Washer Company SQ101GA - Master Flash Square...
                                                                            Made of Gray EPDM, resistant to weathering from ozone and ultraviolet light
                                                                            Price: $7.35
                                                                            Availability: In Stock
                                                                            Aztec Washer Company, Inc. Item #: 204-SQ101GA -

                                                                              The Aztec Washer SQ101GA Standard Master Flash is a pipe flashing designed for small to medium roof penetrations. Constructed from gray EPDM, it provides reliable protection against UV, ozone, and weathering. Its flexible sleeve accommodates pipe movement and vibration, while the trim-to-fit markings make on-site customization simple. The soft, conforming base ensures a secure fit to most roof panel profiles and slopes. Key Features: Gray EPDM compound for long-term durability and weather...

                                                                              Aztec Washer Company RD301BE - Universal Master Flash...
                                                                              Made of Black EPDM, resistant to weathering from ozone and ultraviolet light
                                                                              Price: $11.45
                                                                              Availability: In Stock
                                                                              Aztec Washer Company, Inc. Item #: 204-RD301BE -

                                                                                The Aztec Washer RD301BA Extreme Angle Master Flash is a medium-size flashing designed for steep metal roofs with pitches between 35° and 65°. Made from black EPDM, it provides reliable resistance to UV, ozone, and weathering. The built-in 40° pitch ensures proper alignment on extreme slopes, while the trim-to-fit sleeve creates a watertight seal around pipes up to 5 inches. Its compact base is designed to conform securely to roof profiles for long-term performance.Key Features: Black EPDM...

                                                                                Portals Plus - Small Pipe Boot, 42100, 42130, 42500, 1"-3" ...
                                                                                Small Pipe boot EPDM, 1" - 3"
                                                                                Price: $35.95
                                                                                Availability: In Stock
                                                                                Portals Plus

                                                                                  The Portals Plus Small EPDM Pipe Boots are designed to seal single-pipe roof penetrations on flat roofs. Made from compression-molded EPDM rubber, they provide durable, watertight protection around circular openings. Models 42100 and 42130 include a Snaplock Clamp for mechanical sealing on pipes 1″–3″ in diameter, while model 42500 features an adhesive tape ring for 1.75″–2.75″ pipes. All models come in black EPDM and are packaged 10 per carton. Key features: Durable EPDM body provides...

                                                                                  Portals Plus 32015, Curb Cover w/212 Cap - Black
                                                                                  Small Cover & Cap w/ C-212 Black Cap
                                                                                  Price: $171.15
                                                                                  Availability: In Stock
                                                                                  Portals Plus Item #: POR-32015 -

                                                                                    The Portals Plus 32015 Curb Cover w/ C-212 Cap is a pipe portal assembly that pairs a laminated, acrylic-coated ABS curb cover with an EPDM C-212 cap. The cover features an 8″ collared opening with a molded sealing ring to seat the cap. The C-212 cap includes stainless-steel Snaplock clamps for a mechanical seal to the collar. This configuration is used where multiple small pipes are routed through a single roof penetration location. Key features: Laminated, acrylic-coated ABS curb cover with...

                                                                                    Aztec Washer Company RD301GG - Universal Master Flash...
                                                                                    Made of Gray EPDM, resistant to weathering from ozone and ultraviolet light
                                                                                    Price: $11.45
                                                                                    Availability: In Stock
                                                                                    Aztec Washer Company, Inc. Item #: 204-RD301GG -

                                                                                      The Aztec Washer RD301GA Extreme Angle Master Flash is a medium-size flashing designed for steep metal roofs with slopes between 35° and 65°. Made from gray EPDM, it resists UV, ozone, and weathering for long-term performance. The built-in 40° pitch ensures proper alignment on steep roofs, while the flexible trim-to-fit sleeve provides a watertight seal for pipe penetrations up to 5 inches. Its compact base makes it suitable for medium pipe sizes in extreme roof slope conditions. Key Features:...

                                                                                      Portals Plus 32035, Curb Cover w/481 Cap, Tan
                                                                                      Small Cover & Cap w/ C-481 Cap, tan
                                                                                      Price: $171.15
                                                                                      Availability: In Stock
                                                                                      Portals Plus Item #: POR-32035 -

                                                                                        The Portals Plus 32035 Curb Cover w/ C-481 Cap combines a laminated, acrylic-coated ABS curb cover with an 8″ collared opening and molded sealing ring, paired with the C-481 molded EPDM cap. The cap includes stainless-steel Snaplock clamps to create a mechanical seal to the collar. This assembly is specified for grouped small-diameter penetrations, accommodating up to four pipes from 3/8″ to 1″ in diameter through a single roof portal. Key features: Laminated, acrylic-coated ABS cover with 8″...

                                                                                        Aztec Washer Company SQ401BA - Master Flash Square...
                                                                                        Made of Black EPDM, resistant to weathering from ozone and ultraviolet light
                                                                                        Price: $15.95
                                                                                        Availability: In Stock
                                                                                        Aztec Washer Company, Inc. Item #: 204-SQ401BA -

                                                                                          The Aztec Washer SQ401BA Standard Master Flash is a medium-to-large size pipe flashing designed for roof penetrations. Made from black EPDM, it provides excellent resistance to UV, ozone, and weathering for long-term performance. The flexible sleeve, clearly marked for trimming, ensures quick on-site sizing and accommodates pipe vibration and movement. Its soft base conforms to most roof panel profiles and slopes for a watertight seal. Key Features: Black EPDM material engineered for...

                                                                                          Aztec Washer Company RD201BE - Universal Master Flash...
                                                                                          Made of Black EPDM, resistant to weathering from ozone and ultraviolet light
                                                                                          Price: $8.85
                                                                                          Availability: In Stock
                                                                                          Aztec Washer Company, Inc. Item #: 204-RD201BE -

                                                                                            The Aztec Washer RD201BA Extreme Angle Master Flash is a medium-size flashing designed for steep metal roofs with slopes from 35° to 65°. Made from black EPDM, it resists UV, ozone, and weathering while providing a secure seal around medium pipe penetrations. The built-in 40° pitch allows the flashing to seat properly on extreme roof slopes, and the flexible trim-to-fit sleeve makes installation accurate and efficient. Key Features: Black EPDM compound engineered for resistance to ozone, UV,...

                                                                                            Aztec Washer Company - Extreme Angle Master Flash
                                                                                            Specifically designed for Metal Roofing Industry, Closed - 8" Pipe Range
                                                                                            Price: $58.65
                                                                                            Availability: In Stock
                                                                                            Aztec Washer Company, Inc. Item #: 204- -

                                                                                              The Extreme Angle Master Flash #1 (EA101BA) from Aztec Washer Company is engineered for steep-slope metal roofs with angles from 35° to 65°. This flexible roof flashing is built with premium EPDM rubber, resisting UV and ozone for long-lasting performance. With a built-in 40° pitch, square base that conforms to metal seams, and easy-to-read sizing marks, installation is fast, accurate, and reliable. Perfect for contractors handling challenging penetrations in high-angle roofing applications....

                                                                                              Aztec Washer Company RF101BP - Retrofit Master Flash...
                                                                                              For existing applications where a standard pull over flashing cannot be installed.
                                                                                              Price: $18.95
                                                                                              Availability: In Stock
                                                                                              Aztec Washer Company, Inc. Item #: 204-RF101BP -

                                                                                                Aztec washer rf101bp is a wraparound, split-boot retrofit flashing for situations where you can’t slide a boot over the top of the pipe due to obstructions or existing equipment. made from uv- and ozone-resistant black epdm, it conforms to common panel profiles and roof pitches. clearly marked cut lines simplify sizing, and snap-on fasteners make retrofit installs quick; a collar channel accepts a zip tie to finish the seal. typical uses include roof and sidewall penetrations on metal, stucco,...

                                                                                                Aztec Washer Company RD401GG - Universal Master Flash...
                                                                                                Made of Gray EPDM, resistant to weathering from ozone and ultraviolet light
                                                                                                Price: $14.55
                                                                                                Availability: In Stock
                                                                                                Aztec Washer Company, Inc. Item #: 204-RD401GG -

                                                                                                  The Aztec Washer RD401GA Extreme Angle Master Flash is a medium-to-large size flashing for steep roof slopes between 35° and 65°. Manufactured from gray EPDM, it resists UV, ozone, and weathering for long service life. The built-in 40° pitch allows proper fit on extreme slopes, while the flexible, trim-to-fit sleeve ensures a watertight seal for pipe penetrations from 2-1/4 in to 6-1/4 in. Its 9-1/4 in base conforms securely to roof panel profiles. Key Features: Gray EPDM material for...

                                                                                                  FAQs

                                                                                                  What Is Roof Flashing?

                                                                                                  When it comes to preventing leaks in your roof, the flashing plays an integral role. Typically comprised of copper, aluminum, or galvanized sheet metal, the flashing works as a seal between the roof joints, efficiently keeping water out.

                                                                                                  What Kind of Material is Your Roof Flashing?

                                                                                                  Most homes feature galvanized sheet metal. However, a copper roof is likely to have a copper flashing. And homeowners that install the flashing themselves tend to use aluminum because of its easier installation and affordability. Most roof installers use soldering to build flashing—regardless of the material.

                                                                                                  Most Common Areas for Leaks?

                                                                                                  Experts agree that the roof areas that have the highest risk for leaks include the valleys and locations where pipes penetrate the roof surface. The best solution to prevent leaks in these areas is to use an asphalt roofing cement to seal and keep out water. Ensuring the pipes have the proper vent pipe flashing is another way to stop leaks in this area of vulnerability.

                                                                                                  Damaged flashing poses another risk for roof leaks. Because it is regularly exposed to the elements, it makes sense that it will experience some wear and tear over time. From cracking and warping to coming loose from the roof, it can have issues that leave your roof unable to do its job to keep your home safe and dry.

                                                                                                  What Makes Roofs Vulnerable?

                                                                                                  Why is roof flashing even necessary? Corrosion is one problem, especially if you already have a roof made of metal. There are also some areas of your roof that are more likely to suffer water damage than others, and that is where roof flashing comes in handy. The surface or the dormer walls of the roof can be vulnerable. Roof flashing deals with that problem. The perimeter of your skylight, your chimneys, and your roof valleys are all exposed as well. In short, any place where water runoff can collect before it travels into the gutters and downspouts need some roof flashing.

                                                                                                  Best Sellers

                                                                                                  Oatey, #12945 Aluminum Base Multi-Size Roof Flashing 1.5-3...
                                                                                                  Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
                                                                                                  Price: $10.15

                                                                                                  Oatey® All-Flash® No-Calk® Roof Flashings can be used in commercial and residential applications where a watertight seal for roof penetrations around the plumbing vent pipe is required. The patented collar design allows for use on multiple pipe sizes. Oatey products have earned the trust of plumbing professionals for over 100 years. 1-1/2 in.–3 in. aluminum roof flashing11 in. x 14-1/2 in. base is easy to shapePatented All-Flash® collar with tear-away ring for many pipe sizesSelf-sealing...

                                                                                                  Aztec Washer Company RD101GG - Universal Master Flash...
                                                                                                  Made of Gray EPDM, resistant to weathering from ozone and ultraviolet light
                                                                                                  Price: $6.75

                                                                                                  The Aztec Washer RD101GA Extreme Angle Master Flash is a small-size flashing for steep metal roofs with slopes from 35° to 65°. Made from gray EPDM, it resists UV, ozone, and weathering. A built-in 40° pitch and flexible, trim-to-fit sleeve provide a secure, watertight seal around smaller pipe penetrations while the compact base conforms to roof profiles. Key Features: Gray EPDM compound engineered for long-term resistance to UV, ozone, and weathering. Built-in 40° pitch adapts to steep roof...

                                                                                                  Oatey, #11871 Galvanized Base Multi-Size Roof Flashing...
                                                                                                  Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
                                                                                                  Price: $9.10

                                                                                                  Reduces inventory: 2 multi-size flashings fit 4 pipe sizes. One flashing accommodates 1-1/2", 2", and 3" pipes; the other, 3" and 4" pipes. Ring on collar tears off, allowing flashings to seal different pipe diameters. Simply remove the inner ring at the indicated point on the collar and you'll have a perfect leakproof fit for pipes from 1-1/2" to 4". Slides over pipe - for pitch to 40 degrees. Rustproof, stamped galvanized, 24 or 28 gauge. Non-fading, non-cracking and non-rusting bases and...

                                                                                                  Portals Plus Medium Pipe Boot White TPO 1"-6"
                                                                                                  Medium White TPO 1"-6"
                                                                                                  Price: $27.95

                                                                                                  The Portals Plus Medium Pipe Boot White TPO 1″-6″ (POR-46209) is designed for single-pipe roof penetrations up to 6″ in diameter. It features a 70 mil TPO injection-molded body and includes an integrated Snaplock stainless steel clamp for securing the boot to the pipe. A compression-molded 60 mil EPDM or Neoprene body is included depending on base. It may be adapted for square tubing or angle-iron through optional adapters. This boot is suitable for use with TPO roofing membranes and is white...

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