4buildingmaterials.com · Updated October 2026
This is a blank investigation aid for floating wood-based laminate. It does not diagnose a fault, approve an installation or prescribe a repair. Use the actual product instructions. Enter “Unknown / verify on the unit” where information is missing.
Mark walls and room dimensions with units. Use D = doorway, T = transition, F = fixed object, P = pipe. Mark symptoms A, B, C and match each to photographs and a separate record. Add distances to relevant features. The grid is for drawing only, not a measurement scale.
Room: __________________________ Date: __________________________
Hypothetical example of a location note: A — open end joint beside doorway D; noticed after move-in; photos A-wide and A-detail; frame clearance concealed; product reference not yet found. This example supplies no diagnosis or measured result.
Duplicate this page for additional locations. Ask the installer to record observed conditions, the applicable document clause and what remains unresolved.
| Investigation field | Your record |
|---|---|
| Product range/reference | |
| Purchase and installation dates | |
| Supplier and installer | |
| Instruction title/revision/territory | |
| Attached pad and separate underlay | |
| Room dimensions and units | |
| Symptom map letter | |
| Affected joint or area | |
| Onset and changes over time | |
| Photograph filenames | |
| Nearest wall/frame/transition/fixed object/pipe | |
| Actual clearance, units and location; or concealed | |
| Applicable clearance/transition/sealing clause | |
| Substrate identity and preparation records | |
| Straightedge span, direction, deviation and units | |
| Applicable flatness clause | |
| Observed lock condition and access method | |
| Moisture concern referred for separate investigation | |
| Unresolved questions | |
| Installer findings and proposed method/source clause | |
| Spare boards, access and reassembly requirements | |
| Inspector name and date |
Keep moisture source testing in a separate investigation record. Keep copies of product documents, photographs and the installer’s written findings with this sheet.