What the log is for

During drying, a building changes slowly and not always in the same direction. A slab may look better one morning and worse the next after humid weather or an open door. The log is a place to write down what you measured, where and under what conditions, so that decisions about equipment, materials and finish dates have something solid behind them.

Even if a professional takes the formal readings, a simple parallel log kept by the facility team can be useful. It confirms that readings are being taken, captures operational events that affect conditions, and gives the team its own view of progress.

Review the log at set intervals, such as once each day, with the person managing drying. A short meeting to look at trends, ask what changed and decide whether equipment should move is more effective than letting data pile up unread. Keep notes of decisions beside the numbers: moved two fans, opened a wall section, closed a dock door during humid weather. Months later, when someone asks why drying took the time it did, the combined record of readings and decisions tells the story in a way memory cannot.

Log layout

Date and time
Day 1, morning
Point ID
S-01
Material
Concrete
Reading
Instrument
Weather and doors
Initials
Date and time
Day 1, morning
Point ID
W-03
Material
Drywall
Reading
Instrument
Weather and doors
Initials
Date and time
Day 1, morning
Point ID
A-01
Material
Air
Reading
Instrument
Weather and doors
Initials
Date and time
Day 2, morning
Point ID
S-01
Material
Concrete
Reading
Instrument
Weather and doors
Initials
Date and time
Day 2, morning
Point ID
W-03
Material
Drywall
Reading
Instrument
Weather and doors
Initials
Date and time
Day 2, morning
Point ID
A-01
Material
Air
Reading
Instrument
Weather and doors
Initials

Copy into a spreadsheet and add rows as needed.

Setting up

Point ID system

S-points
Slab points on the floor, spread across wet and dry zones.
W-points
Wall points on drywall or other wall surfaces, at marked heights.
A-points
Air readings for temperature and relative humidity.
B-points
Baseline points in an unaffected area for comparison.

Questions to raise at review time

Bring these to whoever is managing the drying.

  1. Which points are trending toward the baseline and which are stalled?
  2. What changed between readings where values stalled?
  3. Are there areas where materials may need to be removed instead of dried?
  4. What reading range will be treated as finished?

Common questions

How many points do I need?

It depends on the area. Enough to represent each zone and material, plus baselines, is a reasonable starting idea.

Should I share the log?

Share with the contractor, insurer and repair professionals as needed so everyone works from the same record.

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