Primary sources
A factual claim rests on the body that sets the rule, publishes the data or makes the product: the Oregon Legislature and Secretary of State for statutes and rules, the Construction Contractors Board, the EPA, NOAA, the USDA Forest Products Laboratory, and manufacturers' technical data sheets and warranties. A trade blog or a national cost aggregator is not a source. Where a page relies on an explanatory document rather than the governing text, it says so.
Every figure has a source, or it goes
- A number on the site (a temperature, a percentage, a moisture content, a dollar threshold) names or links the source it comes from.
- If no source can be found, the number is removed. It is never estimated, rounded in, or carried over from another site.
- A manufacturer's warranty is described as a warranty, never as a lifespan.
- Each source on a page shows the date it was last opened and checked. That date moves only when someone actually re-checks it.
Prices are labelled as estimates
Price ranges are editorial estimates, not collected quotes, and every page that shows one links the methodology. All of them are read from one place, so the calculator, the cost guide and the city pages cannot disagree.
Law is reported, not advised on
Pages about Oregon and Washington rules state what a named provision says and link it. They do not tell a reader what to do about their own situation.
Independence
Guides are written to answer a homeowner's question, including the questions to ask any painter before you sign, whoever you hire.
Corrections
When a published fact, figure, citation or structured-data claim turns out to be wrong, it is fixed and the fix is recorded on the corrections page with the date, what the page said, and what it says now. To report an error, use the contact page.