R-49 batts for attic floors in cold climate zones 6–8 — Minnesota, Wisconsin, northern New England, and similar markets. Wholesale pricing, same-day quotes, next-day delivery nationwide. No minimum order.
No minimum · Pay at delivery · All 50 states
IECC 2021 requires R-49 in climate zones 6 through 8 — Minnesota, Wisconsin, Michigan, northern New England, and the mountain West. On cold-climate projects, using anything less than R-49 puts you below code and fails blower-door testing.
In zone 6+ climates, heating accounts for a large portion of annual energy bills. R-49 reduces attic conductive loss by approximately 22% compared to R-38 — with a payback measured in a few heating seasons.
Most existing attics can't accommodate a single R-49 batt without modifications. Standard practice: lay R-30 batts in the joist bays, then run R-19 or R-21 batts perpendicular on top for a total of R-49 to R-51. We stock all the components.
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Tell us your R-value, width, quantity, zip code, and delivery date. We respond within the hour — same business day guaranteed.
We confirm stock and send an itemized invoice with your exact delivery window. No vague lead times, no surprise markups.
Delivery next business day on stocked product. Verify the order on arrival, then pay via Zelle, Venmo, or check. No upfront payment.
Climate zones 6–8 include Minnesota, Wisconsin, Michigan's Upper Peninsula, Maine, Vermont, New Hampshire, parts of New York, Wyoming, Montana, Idaho, and high-elevation areas of Colorado and Utah. Check your local energy code or call us with your zip code.
R-49 is available in batt form. Because of the thickness (14"–16"), you'll typically need to cross-layer two batts (e.g., R-30 + R-19) to achieve R-49. We stock all the R-values needed for this approach.
Yes. R-60 provides even better performance and is the Energy Star spec for zones 6–8. We can quote R-60 as well — just ask when you call.
No minimum. Order any quantity. Volume pricing available on large orders — just ask.
Call or text with your quantity, width, and zip code. Same-day quote, next-day delivery on stocked product. Pay at delivery — no upfront payment required.