Insulation requirements in New York
Short answer
New York spans climate zones 4, 5, 6. For most of the state (zone 5), the DOE recommends about R60 of attic insulation, with more in its colder areas.
Climate zones
4, 5, 6
Most of the state
Zone 5
Recommended R-values for New York
Based on zone 5, which covers most of New York. Colder parts of the state (higher zones) need more — enter your ZIP for your exact numbers.
| Area | Recommended R-value | Blown fiberglass |
|---|---|---|
| Attic / ceiling | R60 | 24.0" |
| Exterior walls | R20–R30 | 12.0" |
| Floors | R30 | 12.0" |
| Crawlspace / basement wall | R15–R19 | 7.6" |
New Yorkrebates & tax credits
The federal 25C tax credit (30% of insulation materials, up to $1,200/yr) applies everywhere. New York's IRA rebate programs are administered by the state and rolling out on their own timeline. Check the official finder for New York's current status and how to apply.
Find New York's rebate programs →Last verified 2026-07-07.
Your exact numbers
Enter your ZIP codeOther states
Frequently asked questions
How much insulation do I need in New York?
New York is in IECC climate zones 4, 5, 6. For most of the state the DOE recommends about R60 in the attic, with more in colder areas. Enter your ZIP for the exact zone.
Are there insulation rebates or tax credits in New York?
Yes — the federal 25C tax credit covers 30% of insulation materials (up to $1,200/year), and New York's IRA HOMES/HEAR rebate programs (up to $1,600 for insulation) are administered by the state. Check the official finder for current New York status.
What climate zone is New York in?
New York spans IECC climate zones 4, 5, 6; most of the state is zone 5. Your exact zone depends on your county — enter your ZIP to check.