PerimeterTileInterior drain, exterior dig or neither — decided by where the water is.

About PerimeterTile

PerimeterTile is an independent publication about Basement waterproofing. We started it in 2026 for a simple reason: most of what is written about Basement waterproofing online is rewritten from manufacturer copy, and it shows the moment you try to use it.

What we do differently

We answer one question per article, we put the answer in the first paragraph, and we say when we do not know something. Where a claim can be measured, we measure it and publish the method alongside the number, so you can check our work or repeat it.

Who writes this

PerimeterTile runs PerimeterTile and edits everything published here. Articles are drafted with research tools and then checked, corrected and signed off by a person before they go live — we do not publish anything that nobody has read.

How we pay for it

PerimeterTile is free to read. It is funded by display advertising and by affiliate commissions when you buy something through a link on the site. Neither changes what we recommend; see our editorial policy for how we keep that line.

Getting in touch

Corrections, questions and requests go to [email protected]. We read everything and we correct mistakes in public — see the contact page.