Observed arrival · 2026-09-01

PerimeterTile: Read the Water Before You Dig

perimetertile.com Observed source

Editorial interest 74/100 Selection signal · not a rating of the site

A basement-waterproofing guide and calculation library comparing interior drains, exterior excavation, and crack sealing.

Landing page captured for the 2026-09-01 issue.

Field notes

The project separates waterproofing decisions by intervention: interior drain systems, exterior excavation, and crack injection or sealing. Its calculation library exposes concrete variations rather than one generic estimate, including footing lengths from 40 to 200 linear feet and sump lifts of 6 or 12 feet. Separate indexes list 1,494 city-level cost calculations and 408 state-level examples, giving the site the shape of a reference system as well as an explanatory guide.

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