Mitigation Calculation

Kiosk mode — pick the person taking the items. Your account is recorded alongside their name on every line.

Your sign-in email isn't on the Personnel roster, so checkouts can't be recorded under your name. Ask an admin to add you under Settings → Personnel.

A USB or Bluetooth scanner types the code automatically — just keep this box focused. On a phone, use the camera button. Scanning the same item again adds to its quantity.

A shelf count. Start the audit, enter what you physically counted for each item, and commit — every difference is written as an adjustment with the variance in the log. To receive a supplier order into stock, use Receive stock under the Action dropdown on the Checkout tab.

The fleet the schedule draws from. Give a truck its usual crew chief and it's filled in whenever that chief gets a crew. Add rentals during a surge with a return date; mark a truck out of service instead of deleting it if it's coming back.

Hours from QuickBooks Time per person per day, over the company workweek. Red = past the weekly limit; amber = another 8-hour day tomorrow would put them past it. A dot marks someone on the clock now (counted up to this minute). Tap a name for their jobs.

Enter the label ratio either as ounces of concentrate per gallon or as 1:X. Follow the product label; this only does the arithmetic.

Manifolds and units from the Settings assumptions (LF per manifold, manifolds per unit). Drilling pattern assumes one hole per stud bay, 16" centers, with a second row for walls wet above 24".

Poly footprint plus the exhaust CFM to hold a containment at negative pressure. Category 2/3 work per S500 §12.3.2 and S520 practice: 4 ACH minimum, 6–12 for active demolition; target −5 Pa (−0.02 in wc) or more.

A planning range, not a promise: typical days by class and material, adjusted for the dominant assembly, how long the water sat, and whether the space is conditioned. Verify against readings and revise daily.

Daily rates from Settings → Equipment. Enter quantities and the day count to see the equipment line by day — useful for the "what does one more day cost" conversation.

Enter the wet footprint and the average water depth. 1 cubic foot = 7.48 gallons; water weighs 8.34 lb per gallon.

CFM = area × ceiling height × air changes per hour ÷ 60. Six ACH is the usual general-filtration target; use 4 for light filtration and 8–12 for contaminated (Cat 2/3) containments under negative pressure.

Nameplate amps from Settings → Equipment, 115 V. Circuits at 80% continuous load (15 A → 12 A usable, 20 A → 16 A). Generator size carries a 25% margin over running load.

Two numbers: the one-time energy to bring the air mass from the current to the desired temperature, and the continuous BTU/hr needed to hold it there against air exchange with its surroundings. Uses 1.08 BTU/hr per CFM·°F and standard air (0.075 lb/ft³, 0.24 BTU/lb·°F). For the full envelope model with conduction and equipment heat, use the job's Equipment calc.

Enter what you measured on the material. A sealed-hygrometer (hood) reading gives the surface RH directly; a moisture-meter reading is converted to an equilibrium surface RH through the material's sorption isotherm. The differential is the material's surface vapor pressure minus the affected-area air vapor pressure — positive means water is leaving the material; the larger the number, the faster it dries.

Uses the Dehu inlet and Dehu outlet rows above. Water removal is estimated from the grain depression and the unit's airflow, then compared with its AHAM rating (80°F / 60% RH).

Curves are relative humidity; the shaded band is the 70–90°F drying range. Filled dots are air readings labeled with GPP. The diamond is the air in equilibrium at the wet material's surface — its vertical distance above the affected-area dot is the drying drive. The dehu arrow runs inlet → outlet.

GPP (grains per pound of dry air) is the moisture content that matters for drying — it doesn't change with temperature the way RH does. Dew point is the surface temperature at which condensation starts; a slab or framing colder than the chamber dew point is gaining water, not losing it. Grain depression (dehu inlet GPP − outlet GPP) shows whether the dehumidifier is doing work; LGRs typically pull 20–40+ GPP when healthy and much less when inlet air is cold. Vapor pressure difference between wet materials and the air drives evaporation — raising material temperature raises its vapor pressure.