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FlashCo 30 in. x 30 in. Flat Sheet Lead, 4 lb.
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FlashCo 30 in. x 30 in. Flat Sheet Lead, 4 lb.
FlashCo's 30 in. x 30 in. flat sheet lead flashing comes in 4 lb. weight and is sold per sheet. Soft, formable lead conforms to chimneys, valleys and irregular roof details, and it meets ASTM B749. Cut and dress it on site for custom flashing work.
Key Features:
- Formable lead: Lead sheet conforms to irregular roof shapes and details.
- 30 in. square: 30 in. x 30 in. sheet covers about 6.25 sq ft of flashing area.
- 4 lb. weight: 4 lb. per square foot lead thickness, a standard flashing weight.
- ASTM B749: Meets ASTM B749, the standard for lead and lead alloy sheet.
- Heavy per sheet: Item weight is listed at 25 lb per sheet.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | FlashCo |
| Manufacturer model | LS43030 |
| Sell unit | 1 sheet, 30 in. x 30 in. |
| Product line | FlashCo flat sheet lead |
| Profile / style | Flat sheet |
| Dimensions | 30 in. x 30 in. |
| Thickness | 4 lb. lead sheet (per sq ft weight) |
| Material | Lead |
| Approvals | ASTM B749 |
| Weight | 25 lb per sheet |
| Intended use | Flashing, detailing and custom metal fabrication |
Coverage & How Much You Need:
Each sheet provides 30 in. x 30 in. (6.25 sq ft) of lead flashing material. Size each detail so laps and formations come from a single sheet where possible.
Fit and Compatibility:
Raw flashing stock for chimneys, valleys, roof-to-wall transitions and custom fabrication. Avoid direct contact with dissimilar metals like aluminum or galvanized steel unless isolated, to prevent galvanic corrosion.
Frequently Asked Questions (FAQ):
Q: What does 4 lb. lead mean?
A: It refers to a lead sheet weighing 4 pounds per square foot, which defines its thickness.
Q: What is the sheet size?
A: Each sheet measures 30 in. x 30 in., about 6.25 square feet.
Q: How much does a sheet weigh?
A: The listing lists the item weight at 25 lb per sheet.
Q: What is flat lead sheet used for?
A: Chimney flashing, valleys, roof-to-wall details and any custom-formed flashing where malleability matters.
Q: Can I cut it on site?
A: Yes, lead is soft and can be cut, bent and dressed on site with basic hand tools.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Four-pound lead is the workhorse weight for flashing details—easy to dress yet stable once formed. Allow for lead's significant thermal movement at laps and avoid pinning it rigidly. Keep lead isolated from aluminum and galvanized metal to prevent galvanic action, and follow local codes where lead is used near water paths.
Lead is a heavy, toxic metal—wear gloves, avoid cutting dust inhalation and lift sheets with proper technique.
Order the FlashCo 30 in. x 30 in. 4 lb. flat sheet lead for your next custom flashing detail.
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