16 CFR § 460.11 - Rounding off R-values.

---
identifier: "/us/cfr/t16/s460.11"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "16 CFR § 460.11 - Rounding off R-values."
title_number: 16
title_name: "Commercial Practices"
section_number: "460.11"
section_name: "Rounding off R-values."
chapter_name: "FEDERAL TRADE COMMISSION"
subchapter_number: "D"
subchapter_name: "TRADE REGULATION RULES"
part_number: "460"
part_name: "LABELING AND ADVERTISING OF HOME INSULATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 41  (38 Stat. 717, as amended)."
regulatory_source: "44 FR 50242, Aug. 27, 1979, unless otherwise noted."
cfr_part: "460"
---


# 460.11 Rounding off R-values.

R-values shown in labels, fact sheets, ads, or other promotional materials must be rounded to the nearest tenth. However, R-values of 10 or more may be rounded to the nearest whole number.