Roof Boots & Pipe Flashings
Seal roof penetrations with confidence using our Roof Boots and Pipe Flashings for metal roofs, shingle roofs, and solar applications. From everyday plumbing vents to high-heat exhaust and multi-penetration solar installs, the right roof boot helps create a durable, watertight seal that resists UV exposure, cracking, and weathering.
Metal roofing demands pipe flashings that fit panel profiles and stay sealed through expansion and contraction. Shop EPDM and high-temp silicone roof boots, plus the accessories and kits that make installation fast and reliable.
EPDM pipe flashings are a dependable choice for standard vent penetrations on metal roofing, offering flexibility and long-term outdoor performance.
- Square EPDM
- Round EPDM
- Round Retrofit EPDM
- Extreme Angle EPDM
- Maxi EPDM
- Fix-A-Flash Closed Top Square EPDM
- EPDM Linear Expansion Joint
For higher-temperature penetrations, silicone roof boots are designed to handle demanding conditions while maintaining a secure seal.
- Square High-Temp Silicone
- Round High-Temp Silicone
- Maxi Square High-Temp Silicone
- Extreme Angle High-Temp Silicone
- Square Retrofit High-Temp Silicone
- Fix-A-Flash Closed Top Square Silicone
Complete your installation with purpose-built pipe flashing accessories for metal roofing.
- NovaFlex Clear Silicone Metal Roof Sealant
- Magnetic Socket Nutsetters
- Spring Loaded Socket Nutsetters
- T30 6-Lobe Drive Bit
- EPDM Linear Expansion Joint
Prefer an all-in-one solution? These kits bundle a high-temp silicone roof boot with compatible sealant and installation hardware for a clean, consistent install.
- Square Hi-Temp Silicone Metal Roof Boot Kit: roof boot + NovaFlex roof sealant + pipe boot screws + magnetic nutsetter
- Round Hi-Temp Silicone Metal Roof Boot Kit: roof boot + NovaFlex roof sealant + pipe boot screws + magnetic nutsetter
Shingle Roof Boots
For residential asphalt shingle applications, Master Flash roof boots are built for easy sizing and secure sealing. A built-in 20° pitch helps adapt to a wide range of roof slopes, including up to 45°. Sizes include Mini, #1, #1.5, #2, and #3.
High Temp Silicone Roof Boots for Shingle Roofs
- Made for residential shingle roof penetrations
- Built-in 20° pitch adapts to roof slopes up to 45°
- Sizes: Mini, #1, #1.5, #2, #3
EPDM Pipe Boots for Shingle Roofs
- Made for residential shingle roof penetrations
- Built-in 20° pitch adapts to roof slopes up to 45°
- Sizes: Mini, #1, #1.5, #2, #3
Solar Pipe Flashings
Solar installs often require sealing multiple penetrations—cables, conduit, and small-diameter piping. Our solar pipe flashings include multi-port designs that reduce the need for multiple individual flashings and streamline installation across roof types.
EPDM Roof Boots for Solar Applications
- Multi-port for clay tile roofs (EPDM options include Terra Cotta and Black)
- Multi-port for metal roofs (Black or Gray EPDM)
- Multi-port with aluminum base for clay tile and shingle roofs (Black EPDM)
- Multi-port with lead base for clay tile and shingle roofs (Black EPDM; lead base forms to tile profiles)
High Temp Silicone Roof Boots for Solar Applications
- Multi-port for clay tile and shingle roofs (High-Temp Silicone)
- Multi-port with aluminum base for clay tile and shingle roofs (High-Temp Silicone)
- Multi-port with lead base for clay tile and shingle roofs (High-Temp Silicone; lead base forms to tile profiles)
Common Multi-Port Features (varies by model)
- Multiple ports per flashing to accommodate copper pipe and electrical cabling
- Fits closed to 1-15/16" (49mm) on several models
- Port sizing options commonly include small (3/8" / 9mm) and medium (3/4" / 20mm) ports
- Base options available for roof type and install needs (clay tile, aluminum base, or lead base)
Choosing Between EPDM and Silicone
Is EPDM or silicone better for a metal roof?
It depends on the heat the penetration is exposed to. EPDM handles standard vent and plumbing penetrations well; silicone is built for higher-heat applications like chimneys and stove pipes.
Do I need a high-temperature silicone roof boot?
Only if your penetration involves sustained or spiking heat, such as a chimney or stove pipe. Standard plumbing and HVAC vents are typically well served by EPDM.
Will EPDM crack in direct sunlight?
EPDM is formulated to resist UV and ozone exposure over time, which is why it holds up well in standard outdoor roofing applications without the added cost of a high-temp material.
Leaks, Maintenance & Replacement
How do I tell whether a roof boot is leaking?
Common signs include water staining on the ceiling below the penetration, visible cracking or UV degradation on the boot's surface, or a collar that's pulled away from the pipe.
When should I repair versus replace?
Minor gaps can sometimes be addressed with sealant, but a cracked, brittle, or separated boot should be replaced rather than patched, since the underlying material has already broken down.
Should boots be replaced during reroofing?
Yes, this is generally recommended. Reroofing is the easiest time to access and replace boots before they fail, since the roofing material is already open around the penetration.
Do roof pipe boots need maintenance?
Periodic visual inspection is the main maintenance required. Check for cracking, UV wear, or a loosening collar, especially as a boot approaches the end of its expected service life.
Sizing a Roof Boot
How do I measure a pipe for a roof boot?
Measure the outside diameter of the pipe at the point where it passes through the roof, then match that measurement to the boot's rated size range.
Is sizing based on inside diameter or outside diameter?
Outside diameter of the pipe, not the boot's own collar measurement, is what you match against the product's size range.
Are boots universal?
No. Boots are sized to a specific pipe diameter range, and many come in multi-size cone designs that are trimmed to fit, so always check the rated range before ordering.
Can a smaller boot be stretched?
We don't recommend it. Stretching a boot beyond its rated range can thin the material at the collar and compromise the seal over time.
Have a more specific sizing question? Check our installation guide or contact our team for help matching a boot to your exact pipe.
