Metal Roof Pipe Boot #4 Silicone Square Base - Flexible High Temp

In this review the VIVIDA #4 Silicone Metal Roof Pipe Boot is assessed for homeowners and contractors who need a durable flashing solution for corrugated metal roofs. The bottom line: it is a practical, flexible rubber pipe boot that fits 2-3/4' to 7' OD pipes and is most valuable where a square base and temperature resistance are required. The package includes screws and a hex socket, so it is ready for a straightforward install on many metal roof pitches without hunting for extra fasteners.

Key Features

• Corrugated roof compatibility: The flexible square base can be molded to metal rib lines so the flashing seats cleanly on corrugated panels.
• Wide pipe fit: Designed for 2-3/4' to 7' OD pipes and easily trimmed for a custom fit, which reduces the need to source multiple sizes.
• High temperature silicone: The silicone rubber tolerates a wide temperature range so it holds up around chimneys and exhaust vents within the specified limits.
• Complete kit: Ships with #10 x 1-1/2' roofing screws (18) and an 8mm hex bit socket so installers have the fasteners and driver on hand.
• Square base for steep roofs: The square base is recommended for roof pitches above 10/12 to help maintain a watertight seal on steeper slopes.

Who It's For

This pipe boot is best for homeowners, metal roofing contractors, or DIYers replacing or flashing vent pipes, chimneys, or stove exhausts on corrugated metal roofs. The included screws and socket make it convenient for single repairs or small projects, and the product works particularly well where a square base is preferred for steeper pitches.

Those with very deep corrugated panels (more than 1.5' corrugation depth) should consider a larger size to accommodate both the panel depth and the same pipe OD; the product note advises choosing the next size up in that case.

Pros & Cons

Pros

• Flexible square base conforms to metal rib lines for a better seal on corrugated roofing.
• Wide OD range (2-3/4' to 7') and easy-to-cut rubber allows adjusting to various pipe sizes.
• High temp silicone construction offers reliable performance across a broad temperature range.
• Includes screws and hex socket so it installs without sourcing extra hardware.

Cons

• Not intended for continuous use beyond the stated temperature limits, so extreme applications may require a different product.
• Deep corrugation over 1.5' may need the next size up for proper fit.

Specifications

Our Verdict

The VIVIDA #4 Silicone Metal Roof Pipe Boot is a solid, value-focused choice for corrugated metal roofs when flashing 2-3/4' to 7' OD pipes. Its flexible square base and included screws make installation straightforward, and the high temp silicone adds durability for vent and chimney applications within the specified temperature range. Buy it if you need an easy-to-fit, ready-to-install flashing for standard corrugated roofs; choose a larger size if your corrugation depth exceeds 1.5'.

Frequently Asked Questions

Can this flashing be trimmed to fit smaller pipe diameters?
Yes, the rubber pipe boot can be cut to size to match smaller pipe OD within the 2-3/4' to 7' range.

Is hardware included for installation?
Yes, the package includes 18 #10 x 1-1/2' roofing screws and an 8mm hex bit socket for driving them.

Will this work on steep roofs?
The square base is recommended for pitches greater than 10/12 and helps maintain a better seal on steeper slopes.