Keep this page open when you read an estimate or talk with an adjuster. If a term on your paperwork is not here, ask the person who wrote it to explain it in plain words and to show you where it applies in your basement. A clear answer is a good sign; a vague one is worth following up.

Terms

Air mover
A high-velocity fan aimed along walls, floors or into wall cavities to speed evaporation.
Areaway
An open pit outside a basement window or door, such as an exterior stairwell, that needs its own drain.
Backfill
Soil placed against the foundation after construction. It is looser than undisturbed soil and tends to settle and hold water.
Backwater valve
A one-way valve in the sewer line that closes if sewage flows toward the house.
Category 1, 2, 3 water
Industry shorthand for water cleanliness: clean, significantly contaminated (gray), and grossly contaminated (black), such as sewage or most outside floodwater.
Check valve
A valve on a sump pump discharge line that stops pumped water from flowing back into the pit.
Cove joint
The seam where a basement floor slab meets the foundation wall, the most common entry point for groundwater.
Dehumidifier (LGR)
Low grain refrigerant dehumidifier, a commercial unit that removes moisture from air even when humidity is already fairly low.
Efflorescence
White, powdery mineral deposits left on concrete or masonry when water moves through it and evaporates.
Flood cut
A straight cut that removes the lower band of wet drywall so the cavity can be dried and insulation removed.
Footing drain
Perforated pipe along the outside base of a foundation meant to carry groundwater away. Many older homes lack one or have one that no longer works.
Hydrostatic pressure
The force of water in saturated soil pressing against foundation walls and up under the slab.
Interior perimeter drain
Drain pipe installed in a trench cut into the slab along the inside of the walls, leading to a sump pit.
Lateral
The private sewer pipe running from the house to the public main.
Moisture map
A sketch of the basement with reading points marked and each day's numbers recorded.
Parging
A thin coat of cement mortar applied to the face of a foundation wall.
Tack strip
Wood strips with angled pins nailed around the room edges to hold wall-to-wall carpet.
Wicking
Water climbing upward through drywall, wood or fabric above the level where it actually stood.

Turning terms into questions

  1. The estimate mentions a flood cut. At what height, and which readings support it?
  2. How many air movers and dehumidifiers are planned, and how will you decide when to remove them?
  3. Which category of water did you assign, and what observations led to that?
  4. Is a backwater valve or check valve worth adding, and who would install it?
  5. Will the moisture map be shared with me each day?

General information for Englewood, not a quote or professional advice. In an emergency, call 911.