Self-Adhesive Flooring Over Existing Tiles: Buyer Checklist
Updated:
Prepare an existing-tile record and request product-specific compatibility documents before ordering self-adhesive flooring.
Before you request approval
Can self-adhesive flooring be installed over an existing tiled floor? A useful supplier answer needs the exact flooring reference and a description of the existing surface. Approval for one vinyl installation method should not be assumed to cover another. Use this checklist to prepare an enquiry before ordering; it is not an installation approval for a particular SZ STRONG BUILD product.
1. Identify the proposed flooring system
Record whether the proposed product is self-adhesive, glue-down or click flooring. Attach the current installation document for that reference and market. Ask the supplier to address existing ceramic tiles explicitly rather than replying only that the product is suitable for renovation.
Gerflor's flooring FAQ discusses vinyl over existing ceramic tiles and points readers to the guide for each product. Treat this as a reason to identify the exact range and method; it does not approve an SZ installation.
Use SZ-FL001 self-adhesive floor planks as the product reference for this record. Connect the findings to floor material and site checks before preparing the enquiry.
| Location / condition | Observation to record | Preparation decision |
|---|---|---|
| Tile bond | Mark loose, hollow or moving tiles on the room plan | Retain, repair or remove; name the responsible installer |
| Cracks and joints | Photograph cracks, grout joints and raised edges with location references | Record repair or smoothing proposal for those areas |
| Contamination | Identify coatings, polish, grease or residues | Document the cleaning or removal method |
| Moisture | Record assessment method, date and affected locations | Review against the selected flooring instructions |
| Finished level | Record thresholds, door clearances and proposed added layers | Agree the finished build-up before keeping the tiled base |
2. Prepare a record of the existing tiles
Make a room-by-room sheet with photographs, known tile material, visible joints, repairs and any unresolved condition questions. Ask the project reviewer which further observations or measurements are necessary. Keep the original observations separate from the supplier's conclusions.
Forbo's Project Vinyl documentation lists separate installation guides for its named ranges. This illustrates why a generic vinyl recommendation is insufficient. Request the selected product's own document and a written response to the conditions in your room sheet.
3. Request a written compatibility decision
Send the product reference and room sheet together. Ask whether the existing tile surface is accepted, which documents support that answer, and whether the proposed preparation materials are included in the recommendation. Put unanswered questions in a separate list with an owner and a response date.
For a proposed trial, agree its purpose and who will assess it. Record which surface, materials and instructions were used. A colour sample can support visual selection, but your procurement record should not present that choice as technical permission to install over the existing tiles.
4. Finalise the purchase handoff
Group the assessed areas as retain, repair or remove, and link each decision to its tile-condition record and preparation method. Name who will complete the work and who will review the prepared surface before the planks are fitted.
For the related decision, use the flatness measurement record.