Pipe Boot Calculator

Calculate replacement vent pipe flashing for reroof

Pipe Inventory

Count each pipe penetration by size

1½" pipe

Lavatory/tub drains

2" pipe

Shower/floor drains

3" pipe

Main waste stack

4" pipe

Main soil stack / sewer vent

Boot Material

Scope Type

Code Reference

Total Pipe Boots

1ea

Boot Type

RubberEPDM

By Size

3" pipeMain waste stack

Why Always Replace Pipe Boots

Rubber pipe boots dry-rot and crack within 10-15 years. During tear-off, the seal is compromised even if the boot looks intact. Lead No-Calk boots last 50+ years but cost 3-4x more. Insurance estimates typically include pipe boot replacement as a standard line item.

Order Estimate

Pipe Boot — 3" (Rubber)

Main waste stack

1ea

This is a guide — verify quantities with your supplier before ordering.

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