This is the way to report a mistake or an out-of-date statement, ask how a figure was sourced, or point the editors to a public source they have missed.
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What happens next
Submitting the form opens your email program with a message addressed to [email protected], so you can read it before it is sent. You can also write to that address directly. The editors use your email address only to reply and will not add it to a mailing list. Factual corrections are made in the article itself. Read how that works in the editorial standards, or return to the about page.
The short version
Use this page for corrections and source suggestions. For work on a building, speak to a qualified local professional.