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FlashCo 3 in. FlashCap Lead Counter Flashing Cap - 4 Lb. Mill Finish
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FlashCo 3 in. FlashCap Lead Counter Flashing Cap - 4 Lb. Mill Finish
This FlashCo FlashCap is a 3 in. lead counter-flashing cap, 4 lb. lead, with a mill finish, designed to slip inside a vent pipe and cap over the base flashing. It meets ASTM B749. Sold per piece; pair with a FlashCo pipe flashing base for a complete pipe penetration detail.
Key Features:
- Malleable Lead: Formed from 4 lb. lead that can be hand-formed to seat tightly against the pipe and flashing.
- 3 in. Size: Sized for 3 in. vent pipe penetrations.
- Counter Flashing Cap: Fits inside the vent pipe and over the flashing to complete the waterproof seal.
- Mill Finish: Natural mill lead finish weathers to a uniform gray.
- ASTM B749: Conforms to ASTM B749, the standard specification for lead and lead alloy sheet, strip and plate.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | FlashCo |
| Manufacturer model | LFC3754 |
| Sell unit | 1 cap |
| Product line | FlashCap lead counter flashing |
| Profile / style | Counter-flashing cap |
| Nominal size | 3 in. |
| Material | Lead |
| Color / finish | Mill |
| Applicable standards | ASTM B749 |
| Intended use | Capping vent pipe flashing on 3 in. penetrations |
| Weight | 4 lb lead weight (listed item weight 1 lb) |
Fit and Compatibility:
Designed to pair with a vent pipe flashing base on 3 in. pipe penetrations; the base flashing and boots are sold separately. Not intended for use with flat-out or other than 3 in. pipe sizes.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 3 in. FlashCap lead counter-flashing cap; the base flashing or boot is sold separately.
Q: What pipe size does it fit?
A: It is made for 3 in. vent pipe penetrations.
Q: What is it made of?
A: 4 lb. lead with a mill finish, meeting ASTM B749.
Q: How is it installed?
A: The cap fits inside the vent pipe and over the flashing; lead can be hand-formed to seat tightly.
Q: Do I need a base flashing?
A: Yes, the cap acts as counter flashing over a base flashing or boot, which is sold separately.
Q: What is the weight?
A: The cap is 4 lb. lead; the catalog lists the item weight at 1 lb.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Lead FlashCaps remain the standard for round vent penetrations because the soft lead can be dressed by hand to seat against the pipe and over the base flashing edge. Slide the cap down inside the pipe and form the skirt over the flashing's top edge; no sealant is typically required at the cap-to-pipe joint. For applications where lead contact with runoff is a concern, consider a non-lead alternative. Always confirm pipe size before ordering.
Lead is a toxic metal; wear gloves, wash hands after handling, and follow OSHA and local requirements when cutting or forming lead flashing.
Order the FlashCo 3 in. FlashCap 4 lb. lead counter flashing cap for a watertight vent pipe detail.
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