R-Tech 1 in. x 4 ft x 8 ft Rigid Foam Board Insulation (R-3.85) price
Lowest captured price: $16.72 · ranges up to $17.96 across 5 retailers — a $1.24 spread on the same item · as of 2026-07-16
Price by retailer
| Retailer | Captured price |
|---|---|
| Menards Online | $16.72 |
| Lowe's - Warrington | $17.02 |
| The Home Depot - Plymouth Meeting | $17.55 |
| The Home Depot - Lansdale | $17.57 |
| Lowe's - North Wales | $17.96 |
Price history
Daily lowest captured price — tracking since 2026-07-01.
2026-07-01: $16.722026-07-14: $16.722026-07-15: $16.722026-07-16: $16.72
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These are captured prices and can lag the shelf. Signed in, Red Alert compares live prices across 40+ retailers plus the supply houses near your ZIP — inform-only, no checkout, links straight to the retailer.
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