government guidance
Spray Polyurethane Foam Insulation: How to Use It More Safely (archived)
U.S. Environmental Protection Agency · United States
Record ID: epa-spf-safety · accessed 2026-09-05Claims need a trail
Source and Evidence Ledger
This ledger records sources used across the launch edition. Each guide lists only the records that support its specific discussion.
government guidance
Ventilation Guidance for Spray Polyurethane Foam Application (archived)
U.S. Environmental Protection Agency · United States
Record ID: epa-spf-ventilation · accessed 2026-09-05government guidance
Isocyanates: Overview
Occupational Safety and Health Administration · United States workplaces
Record ID: osha-isocyanates · accessed 2026-09-05government guidance
Home Air Sealing Checklist
DOE Building America Solution Center · United States
Record ID: pnnl-air-sealing · accessed 2026-09-05government guidance
Unvented Conditioned Attic with Spray Foam Below the Roof Deck
DOE Building America Solution Center · United States
Record ID: pnnl-unvented-attic · accessed 2026-09-05government guidance
Unvented Attic Insulation
DOE Building America Solution Center · United States
Record ID: pnnl-unvented-attic-overview · accessed 2026-09-05government guidance
Recommended Home Insulation R-Values
ENERGY STAR · United States
Record ID: energy-star-r-values · accessed 2026-09-05government guidance
Adding Attic Insulation
ENERGY STAR · United States
Record ID: energy-star-attic · accessed 2026-09-05government guidance
Energy Saver: Air Sealing Your Home
U.S. Department of Energy · United States
Record ID: doe-air-sealing · accessed 2026-08-23official standard portal
ICC Digital Codes
International Code Council · Model codes; local adoption varies
Record ID: icc-codes · accessed 2026-09-05government guidance
A Brief Guide to Mold, Moisture and Your Home
U.S. Environmental Protection Agency · United States
Record ID: epa-mold-moisture · accessed 2026-09-05government guidance
Quick Safety Tips for Spray Polyurethane Foam Users (archived)
U.S. Environmental Protection Agency · United States; archived guidance
Record ID: epa-spf-quick-tips · accessed 2026-09-05government guidance
Safer Workplace Practices for Spray Polyurethane Foam Installation (archived)
U.S. Environmental Protection Agency · United States; archived guidance
Record ID: epa-spf-work-practices · accessed 2026-09-05government guidance
Potential Chemical Exposures From Spray Polyurethane Foam (archived)
U.S. Environmental Protection Agency · United States; archived guidance
Record ID: epa-spf-chemical-exposure · accessed 2026-09-05official standard portal
29 CFR 1910.134: Respiratory Protection
Occupational Safety and Health Administration · United States workplaces; applicable industry and state-plan rules matter
Record ID: osha-respiratory-protection · accessed 2026-09-05government guidance
Hazard Communication Standard: Safety Data Sheets
Occupational Safety and Health Administration · United States workplaces
Record ID: osha-sds · accessed 2026-09-05government guidance
Water Management of Existing Crawlspace Floor
DOE Building America Solution Center · United States; assembly and climate scope apply
Record ID: pnnl-crawlspace-water · accessed 2026-09-05government guidance
Unvented, Insulated Crawlspaces
DOE Building America Solution Center · United States; local code, flood and pest conditions apply
Record ID: pnnl-unvented-crawlspace · accessed 2026-09-05government guidance
Spray Foam Interior Insulation for Existing Foundation Walls
DOE Building America Solution Center · United States; existing foundation walls
Record ID: pnnl-foundation-retrofit · accessed 2026-09-05government guidance
Spray Foam Insulation for Cavities of Existing Exterior Walls
DOE Building America Solution Center · United States; open cavities after interior finish removal
Record ID: pnnl-wall-retrofit · accessed 2026-09-05government guidance
Air Sealing Attached Garage
DOE Building America Solution Center · United States; attached garages
Record ID: pnnl-attached-garage · accessed 2026-09-05government guidance
Floor Above Unconditioned Basement or Vented Crawlspace
DOE Building America Solution Center · United States; floor and rim transitions
Record ID: pnnl-floor-over-crawlspace · accessed 2026-09-05government guidance
Building Enclosure: Air Barriers vs Vapor Barriers
DOE Building Science Education · United States; educational control-layer concepts
Record ID: doe-control-layers · accessed 2026-09-05government guidance
Choosing the Appropriate Insulation Type
ENERGY STAR · United States
Record ID: energy-star-material-selection · accessed 2026-09-05official standard portal
2021 IRC Chapter 3: Building Planning (R302 and R316)
International Code Council · 2021 model code example; not a local adoption determination
Record ID: icc-irc-2021-building-planning · accessed 2026-09-05official standard portal
Labeling and Advertising of Home Insulation: 2018 Final Rule Notice
Federal Trade Commission · United States; 2018 rule explanation, not a current legal review
Record ID: ftc-r-value-rule-2018 · accessed 2026-09-05government guidance
How Does Radon Get into Your Home?
U.S. Environmental Protection Agency · United States
Record ID: epa-radon-entry · accessed 2026-09-05government guidance
Keeping the Heat In, Section 3: Insulation Materials
Natural Resources Canada · Canada; material description only, not U.S. code guidance
Record ID: nrcan-insulation-materials · accessed 2026-09-05What a source does not establish
A federal guide does not determine your adopted local code. A manufacturer document applies only to the identified formulation and conditions. A model-code portal does not show every local amendment. A citation supports the linked claim, not every possible application.