RACE - Flexible Lead Vent and Pipe Flashing, 2.5 lbs, 4"

This flashing is made entirely of lead for long service life and flexibility. It can be molded to conform to shingle, clay, or metal roofing surfaces. The flashing fits 4” pipe diameter and allows for roof pitch adaptability up to about 14°.

Key features:

• All lead construction for durability
• Moldable to shingle, clay, or metal roofs
• Flexible up to approximately 14°
• Designed to fit 4″ pipe diameter
• Suitable for multi-pitch roof applications

• Weight: 2.5 lbs
• Fits pipe OD: 4″
• Flexibility: Up to 14° to accommodate roof pitch up to 17/12
• Material: Lead
• Application: Pipe vent and flashing for various roof coverings

• Clear debris and old flashing around the penetration, then slide the new lead flashing down the vent pipe so the base flange lies flat on the underlayment and shingles below. 
• Lift the shingles directly above the pipe and tuck the top flange of the flashing underneath them so the water sheds over the flashing, while the lower flange sits on top of the shingles. 
• Center the flashing collar over the pipe, form it snugly around the pipe (using a mallet if necessary), ensuring no gaps or lifting edges. 
• Fasten the flashing with roofing nails through the base flange, placing nails where they will be covered by shingles or under subsequent courses; apply compatible sealant under the flashing edge or around the pipe as required. 
• Replace or adjust the surrounding shingles so they overlap the flashing properly, seal exposed fastener heads, and inspect the installation for proper fit and no gaps around the pipe or flashing. 

Q: What makes lead vent & pipe flashing preferable to rubber boots in some applications?
A: Lead flashing is durable, malleable for custom forming, and offers long service life—especially where complex penetration shapes or historic roof work are involved.

Q: When should the inspection or replacement of pipe flashing be carried out?
A: Inspect annually or after severe weather; replace if there are cracks, lifting seams, corrosion, or separation from the pipe/flange.

Q: Can I install lead flashing over existing shingles or must I remove shingles first?
A: Ideally, you lift the shingles above the pipe and slide the flashing under them for proper water shedding. Simply installing over existing full-shingle coverage may compromise performance.

Q: What sealant types are compatible with lead flashing, and what should be avoided?
A: Use roofing-approved sealants compatible with lead; avoid petroleum-based mastics on flexible collars or lead edges, as they may degrade the material.

Q: Are there code or environmental considerations when working with lead flashing?
A: Yes — some jurisdictions restrict or require special handling/disposal of lead materials. Also ensure the flashing is installed per local building code and in safe working conditions.