What needs checking?
A visible change, a gap width and a fitting dimension are different jobs. Start with the question.
Keep the spot.
Compare the visits.
One photograph is a moment.
Keep coming back, and it becomes a story you can check.
ILLUSTRATIVE REFERENCE / NOT A CALIBRATED TARGET01 / LUOGO / KEEP THE PLACEThis spot.
This spot.
Every time.
Give the place its own record. A tile makes that record easy to open and helps people return to the same point.
A printed QR is a doorway. A reference made for measurement is chosen separately, for the detail you need to check.
See the tile options ↗
02 / REALTOSEE / COMPARE THE VISITSA different view
A different view
can fool the eye.
Light, distance and camera angle can make the same wall look different. Start by checking whether the views belong in the same comparison.
This moves one generated photograph. It shows the idea; it does not align customer photographs.
THE POINT / ITS VISITS / ITS RECORDS
Wall A · point 01
FIRST VISIT4 MayExample reading kept
RETURN VISIT22 JuneExample reading kept
One question. The evidence behind it.
03 / HONEYCOMB / KEEP THE EVIDENCEOpen the answer.
Open the answer.
Find its source.
Keep the place, dates, observations and readings together. A result should lead back to the record it came from.
Keep unanswered questions there too. A wider gap gives someone a reason to look closer; it does not explain the cause.
Open an example record ↗THE RECORD BEHIND THE EXAMPLEShow your working.
Show your working.
Keep the gaps visible.
Choose an example.
See what it can and cannot tell you.
WHEN YOUR EYES NEED MORE TO GO ONA picture.
A picture.
A reading. A better check.
Some changes are hard to remember. Others need more than a photograph.
- Keep the visible clue.
Repeat the same view. Compare a stain, a paint edge or a surface mark.
- Add the right reading.
Moisture inside a wall, a temperature difference or a very fine dimension needs suitable equipment and a checked method.
- Know when to ask a specialist.
Dry rot, the cause of damp and structural safety need the appropriate investigation. Keep that finding with the same place.
What makes a comparison useful?
The tile identifies the place. The reference, equipment, lighting, viewpoint and uncertainty are chosen for the actual question. This website demonstrates the workflow; it does not process or diagnose your building.
Historic England: investigating damp ↗Agree the check
before the measurement.
How close is close enough?
Choose a suitable reference and equipment. Check them against something known before relying on the result.
What is still uncertain?
Keep the conditions, limits and missing observations with the finding. Ask the right person to assess what it means.
YOUR PROJECT / AN AGREED WORKFLOWStart with one
Start with one
useful question.
We agree the place, access, recording method, review and output before work starts.
Your enquiry is saved in the shared private request system. No payment is taken.- 01Record.
Keep the original, the place and the visit.
- 02Review.
Agree who checks the evidence and who can see it.
- 03Compare.
Use suitable views and references for the agreed question.
- 04Return.
Keep a clear history for the next visit.