Current register: 28 primary sources, all reviewed on July 16, 2026.
How to read the register
A source review date records when the linked document was checked for this build; it is not a claim that the document was published that day. Manufacturer yields and coverage values apply only to the named product or label. Government climate and safety guidance applies only within its stated jurisdiction and scope.
Sherwin-Williams
Paint Calculator
Actual coverage varies with surface condition, color change, application, and product label.
Used for
- Interior paint planning
- Typical 350–400 square feet per U.S. gallon coverage range
Exterior Painting How-Tos
Use the selected coating label when it provides a more specific spread rate.
Used for
- Exterior coating preparation
- General 250–400 square feet per gallon planning range
QUIKRETE
Concrete Mix No. 1101 Technical Data Sheet
Bag counts are based on stated approximate yield and must be rounded up to whole bags.
Used for
- Bag yields for current 40, 60, and 80 pound bags
- Minimum 2 inch (50 mm) placement thickness
ENERGY STAR
Recommended Home Insulation R-Values
Recommendations are presented by ENERGY STAR using 2021 IECC climate zones.
Used for
- U.S. attic insulation recommendations by climate zone and existing insulation condition
DIY Checks and Inspections
Do not disturb suspected vermiculite insulation; obtain qualified guidance before work.
Used for
- Attic inspection sequence
- Estimated R-value per inch by insulation type
- Vermiculite safety warning
Attic Insulation
Air leaks and moisture conditions should be addressed before insulation is added.
Used for
- Attic air sealing and insulation project order
- Professional assessment triggers
Natural Resources Canada
Keeping the Heat In — How your house works
Canadian guidance uses effective thermal resistance and climate-zone classifications.
Used for
- Canadian climate zones
- Recommended roof and ceiling RSI/R values
- R-to-RSI conversion
Keeping the Heat In — Roofs and attics
Follow product labels for bag count and settled depth; do not disturb suspected vermiculite.
Used for
- Canadian attic inspection
- Air and moisture control
- Insulation top-up planning
Owens Corning
AttiCat Expanding Blown-In Insulation System
Calculator accepts only labeled table R-values and rounds the label bag requirement up.
Used for
- AttiCat bags per 1,000 square feet
- Maximum coverage per bag
- Minimum installed thickness by labeled R-value
Owens Corning Canada
AttiCat Expanding Blown-In Insulation System and coverage chart
The official product page publishes the coverage chart and links the identified Coverage Card; use the Canadian label, never the U.S. table, and verify the current bag at purchase.
Used for
- Canadian AttiCat product identification
- Canadian 30 pound bag maximum coverage and minimum installed thickness for labeled R12–R80
- Canadian product-label planning
National Institute of Standards and Technology
NIST Guide to the SI, Appendix B — Conversion Factors
Code retains exact defining constants where NIST identifies an exact relationship.
Used for
- Length, area, volume, mass, and U.S. liquid gallon conversions
USG
Joint compound coverage FAQ
The FAQ estimate is product-specific and should not be generalized to every compound.
Used for
- Approximate joint compound quantity per 1,000 square feet of gypsum panels
Sheetrock Brand Gypsum Panels
Panel availability and code-required type vary; verify the chosen panel before purchasing.
Used for
- Panel product dimensions and selection
USDA Forest Products Laboratory
Wood Handbook: Wood as an Engineering Material
Structural deck design remains subject to local code and site-specific engineering requirements.
Used for
- Wood moisture, durability, fasteners, and construction fundamentals
Finishes for Exterior Wood
Finish life depends on exposure, wood condition, preparation, and product system; no universal interval is assumed.
Used for
- Exterior wood finish selection and surface preparation
U.S. Department of Energy
Prototype Building Models — Climate Zone Representatives
Representative locations classify a zone; they are not a substitute for local weather or code data.
Used for
- Representative U.S. locations and climate-zone moisture/design labels
Pacific Northwest National Laboratory
Guide to Determining Climate Zones by County
Use the county files for a project address; representative cities are examples rather than boundaries.
Used for
- 2021 IECC and Building America county climate-zone lookup
U.S. Environmental Protection Agency
Steps to Lead Safe Renovation, Repair and Painting
Lead rules and certified-contractor requirements may apply; this site does not replace regulatory guidance.
Used for
- Lead-safe renovation planning and containment
Asbestos Frequently Asked Questions
A material cannot be identified as asbestos-containing by appearance alone.
Used for
- Asbestos identification limits and testing before disturbance
Mold Cleanup in Your Home
EPA uses an area of about 10 square feet as a decision point while also identifying other reasons to seek professional help.
Used for
- Mold cleanup scope and professional-help threshold
Flood Cleanup to Protect Indoor Air and Your Health
Electrical, structural, sewage, chemical, and extensive mold hazards require qualified help.
Used for
- Floodwater safety, drying, and indoor-air cleanup sequence
Radon
Test results and mitigation decisions should follow current EPA instructions and device directions.
Used for
- U.S. radon action level and mitigation planning
Health Canada
Lead-based paint
Paint history is a screening clue, not a laboratory identification.
Used for
- Canadian lead-paint age guidance and renovation precautions
Health risks of asbestos
Avoid disturbing suspect material and use qualified testing before renovation.
Used for
- Canadian asbestos renovation precautions and professional testing
Addressing moisture and mould in your home
The moisture source must be corrected; large or recurring growth calls for professional assessment.
Used for
- Canadian mould area categories and cleanup planning
Flood cleanup — Keep in mind indoor air quality
The guide says bleach is not necessary for mould cleanup and combustion equipment must remain outdoors.
Used for
- Post-flood electrical and combustion safety
- Drying within 48 hours
Government of Canada Radon Guideline
Mitigation urgency depends on the long-term result; follow current Health Canada guidance.
Used for
- Canadian annual-average radon guideline
Guide for Radon Measurements in Residential Dwellings
The guide calls for a minimum 91-day long-term measurement for a valid annual estimate.
Used for
- Canadian long-term radon test duration and placement
What is intentionally excluded
The initial release does not publish unsourced regional prices, generic return-on-investment claims, universal material life spans, or a city value copied to an entire climate zone. Weather normals, forecasts, tax data, and permit rules are not inferred when a stable source is not part of the page.