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

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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: $7.70
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...

Portals Plus Medium Pipe Boot White TPO 1"-6"
Medium White TPO 1"-6"
Price: $25.10
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...

Portals Plus 29430, 5-Hole Pipe Portal Flashing System, 5...
5-Cap Cover & Caps w/ C-555 Black Caps
Price: $185.70
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, #11910 Thermoplastic Base Roof Flashing 3 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $6.75
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, #11871 Galvanized Base Multi-Size Roof Flashing...
Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
Price: $9.00
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...

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, #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, #11853 Galvanized Base Roof Flashing 2 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $8.30
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, #11908 Thermoplastic Base Roof Flashing 1.25-1.5...
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $6.40
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...

Oatey, #11866 Galvanized Base Roof Flashing 3 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $8.90
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...

Oatey, #11909 Thermoplastic Base Roof Flashing 2 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $6.40
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, #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, #11840 Galvanized Base Roof Flashing 1.25-1.5 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $8.15
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, #12945 Aluminum Base Multi-Size Roof Flashing 1.5-3...
Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
Price: $10.10
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...

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, #12920 Aluminum Base Roof Flashing 1.25-1.5 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $8.90
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...

Portals Plus 32015, Curb Cover w/212 Cap - Black
Small Cover & Cap w/ C-212 Black Cap
Price: $159.99
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...

Oatey, #11911 Thermoplastic Base Roof Flashing 4 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $7.75
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...

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...

Oatey, #12956 Aluminum Base Multi-Size Roof Flashing 3-4...
Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
Price: $11.80
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, #11879 Galvanized Base Roof Flashing 4 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $10.80
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...

Oatey, #12933 Aluminum Base Roof Flashing 2 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $9.15
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...

Oatey, #11877 Galvanized Base Multi-Size Roof Flashing 3-4...
Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
Price: $9.55
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...

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 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...

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...

Portals Plus 32101, Small RC-2A Straight Sided Roof Curb-...
SM RC-2A Straight Sided Roof Curb- 11" High
Price: $254.25
Availability: In Stock
Portals Plus Item #: POR-32101 -

The Portals Plus 32101 Small RC-2A Straight Sided Roof Curb (11″ High) is designed for decks with lightweight fill or tapered insulation. It is fabricated from 18 gauge galvanized steel with an integral base plate and continuously welded corner seams, includes a factory-installed wood nailer and 1.5″ thick rigid fiberglass insulation (3 lb density) on all four sides. This curb provides a versatile, leak-resistant base for pipe portal systems. Key features: 18 gauge galvanized steel...

Portals Plus - Large Pipe Boot, 8"-12"
Large Pipe Boot
Price: Choose Option
Availability: In Stock
Portals Plus

The Portals Plus Large Pipe Boot series covers large single-pipe roof penetrations with diameters from 6″ to 12″. These boots feature a compression-molded body (60 mil EPDM or Neoprene) and include the Snaplock stainless-steel clamp to secure the pipe and flashing. Available in black or white EPDM and black neoprene to match roofing membrane finishes and system requirements. Installation should follow Portals Plus instructions and the roofing membrane manufacturer’s guidelines. Key features:...

Portals Plus 32035, Curb Cover w/481 Cap, Tan
Small Cover & Cap w/ C-481 Cap, tan
Price: $159.99
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″...

Oatey, #12801 Aurora No-Calk Solar Flashing 1/2 in. -...
For applications where a watertight seal for roof penetrations around the piping for...
Price: $8.80
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...

Oatey, #12943 No-Calk All-Flash Color-Flash Roof Flashing...
Matches the color of your roof
Price: $12.85
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, #12946 Aluminum Base Roof Flashing 3 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $10.35
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...

Oatey, #12954 No-Calk All-Flash Color-Flash Roof Flashing...
Matches the color of your roof
Price: $15.00
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 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...

Portals Plus 29225, C212 Black Cap w/Clamps
All Caps include stainless steel Snaplock Clamps.
Price: $77.70
Availability: In Stock
Portals Plus Item #: POR-29225 -

The Portals Plus 29225 C-212 Black Cap with Clamps is a molded EPDM compression cap designed to handle up to four roof pipe penetrations—two pipes sized 3/8″ to 1″ diameter and two pipes sized 1″ to 2″ diameter. It includes four stainless-steel adjustable Snaplock clamps to secure the cap around the penetrations. The flexible EPDM cap allows the penetrations to expand, contract, and vibrate independently of the roofing system, and is used in conjunction with a compatible Alumi-Flash or...

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,...

Oatey, #12959 Aluminum Base Roof Flashing 4 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $11.65
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 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 29245, C481 Black Cap w/Clamps
All Caps include stainless steel Snaplock Clamps.
Price: $77.70
Availability: In Stock
Portals Plus Item #: POR-29245 -

The Portals Plus 29245 C-481 Black Cap with Clamps is a molded EPDM compression cap engineered to handle up to four pipe penetrations from .375″ to 1″ in diameter. It comes supplied with four stainless-steel adjustable Snaplock clamps to mechanically secure the cap around the penetrations. The flexible EPDM cap allows penetrations to expand, contract and vibrate independently of the roofing system, and is intended for use on compatible Alumi-Flash or Plasti-Flash base units (base not...

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°...

Oatey, #11873 No-Calk All-Flash Color-Flash Roof Flashing...
Matches the color of your roof
Price: $11.90
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...

Portals Plus 38101, Small RC-2A Straight Sided Roof Curb-...
SM RC-2A Straight Sided Roof Curb- 18" High
Price: $419.45
Availability: In Stock
Portals Plus Item #: POR-38101 -

The Portals Plus Small RC-2A Straight-Sided Roof Curb 18″ High (POR-38101) provides a durable mounting base for pipe portal systems on roofs with lightweight fill or tapered insulation. It measures 12″ long by 12″ wide by 18″ high and is constructed from 18-gauge galvanized steel with continuously welded seams for strength and leak prevention. A factory-installed 1.5″ thick 3 lb rigid fiberglass insulation board lines the curb walls, while a wood nailer at the top perimeter ensures secure...

Oatey, #12802 Aurora No-Calk Solar Flashing 1/2 in. -...
For applications where a watertight seal for roof penetrations around the piping for...
Price: $11.40
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, #11931 All-Flash No-Calk Highrise Roof Flashing 3...
Slides over pipe for pitch 10 to 60 degrees
Price: $13.90
Availability: In Stock
Oatey Item #: OATEY-11931 -

Oatey® High-Rise® Thermoplastic All-Flash® No-Calk® Roof Flashings feature a patented design that allows use on multiple pipe sizes in commercial and residential applications that require a watertight seal for roof penetrations around the plumbing vent pipe. Roof Flashing slides over DWV pipe for pitch to 60 degreesAll-Flash collar has tear-away ring allowing flashing to seal various pipe diametersNon-fading, non-cracking rigid black thermoplastic baseNon-fading sealing collarApproved for Type...

Portals Plus - Deck-Mate, Hi-Temp Silicone (Terra-Cotta)
Accommodates projections from 1/4"-26" dia., and works in conjunction with any...
Price: $22.20
Availability: In Stock
Portals Plus

The Portals Plus Deck-Mate Hi-Temp Silicone Flashing is designed to seal pipe penetrations on metal roofs exposed to high-temperature environments. The compression-molded silicone boot offers exceptional heat resistance, flexibility, and weather durability. Its flexible aluminum base conforms to roof profiles for a watertight fit, accommodating pipe diameters from 0.125″ to 26″. With a service range of –100 °F to +500 °F, this flashing delivers long-lasting performance for exhaust, HVAC, and...

Portals Plus 32025, Curb Cover w/412 Cap, Tan
Small Cover & Cap w/ C-412 tan Cap
Price: $159.99
Availability: In Stock
Portals Plus Item #: POR-32025 -

The Portals Plus 32025 Curb Cover w/ C-412 Cap Tan is a pre-assembled pipe portal solution designed for roof penetrations. The system comprises a laminated, acrylic-coated ABS plastic curb cover with an 8″ collared opening featuring a molded sealing ring, paired with the C-412 EPDM molded cap and stainless-steel Snaplock clamp. It is specified for roof systems where up to four pipes of 1″-2″ diameter penetrate a single location. Key features: Laminated, acrylic-coated ABS plastic curb cover...

Portals Plus 22025, Alumi-Flash Standard Base w/212 Black...
Standard Base w/212 Black Cap
Price: $155.00
Availability: In Stock
Portals Plus Item #: POR-22025 -

The Portals Plus 22025 Alumi-Flash Standard Base with C-212 Black Cap is a factory-matched flashing system for multiple roof penetrations. The standard base is made from .060" spun aluminum, 4" high, with a 14" base diameter and an 8" collared opening rolled with two beaded sealing rings. The C-212 cap is a molded EPDM component that attaches to the double beads using the stainless-steel Snaplock clamp included with the cap. Together they create a mechanical, weather-tight pressure seal...

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

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, #12945 Aluminum Base Multi-Size Roof Flashing 1.5-3...
Shingle Flashings are designed to effectively seal round pipe penetrations, seals...
Price: $10.10

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...

Portals Plus Medium Pipe Boot White TPO 1"-6"
Medium White TPO 1"-6"
Price: $25.10

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, #11840 Galvanized Base Roof Flashing 1.25-1.5 in.
Shingle Flashings are designed to effectively seal round pipe penetrations, Slides over...
Price: $8.15

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...

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