Installing COREPEL.
Click and done: COREPEL SPC is installed floating and the underlay is already on every plank. Here you find the guide for your format and everything to check beforehand.
Why click installation with COREPEL.
1 mm IXPE is factory-fitted to every plank. No extra underlay, 20 dB less impact sound.
Up to 15 × 15 m without transition profiles, even through doorways.
Can be installed over flat tiles, screed or wood-based panels.
Low thermal resistance of 0.0252 m²K/W, max. 27 °C at the surface.
Checklist before installation.
Material
- Store boxes flat, never on end
- Let them acclimatise in the room
- Check every plank in daylight; do not install faulty ones
Subfloor
- Sound, clean, dry
- Flatness: max. 3 mm over 1 m (Wood, Stone), max. 1 mm over 1 m (Herringbone)
- Residual moisture cement screed ≤ 2.0 CM-%, calcium sulphate ≤ 0.5 CM-% (or national limit)
- No carpet, needle felt or floating floor underneath
Installation
- Expansion gap 5 mm, 10 mm around pipes
- Max. 15 × 15 m without profiles
- No glue, no nails
- No heavy built-ins on the floor
The 10 most important rules.
- Read the guide for your format before the first click.
- Check the material before cutting – cut planks count as accepted.
- Mix boxes for an even look.
- Subfloor flat, dry and clean.
- Do not add an extra underlay.
- 5 mm expansion gap all round, including door frames.
- Do not place kitchen units or fitted wardrobes on the floor.
- Fix skirting boards to the wall only.
- With underfloor heating max. 27 °C surface temperature.
- Felt pads under furniture, soft castors on office chairs.
Guides and technical notes.
- Picture guide Premium Woodplank · status 03/2026PDF ↓
- Picture guide Premium Herringboneherringbone · status 07/2026PDF ↓
- Picture guide Premium Stonetile · status 03/2026PDF ↓
- Pre-installation checklist COREPEL SPCEN · 1 pagePDF ↓
- Installation guide PRO LINE Drybackinternational, national standards · ENPDF ↓
- Verlegeanleitung PRO LINE DrybackGermany, DIN 18365 · DEPDF ↓
- Technical note: underfloor heating and coolinghydronic and electric · ENPDF ↓
- Technical note: conservatories and floor-to-ceiling windowsENPDF ↓
Frequently asked questions.
Do I need an extra underlay?
No. Every COREPEL SPC plank already has a 1 mm IXPE underlay (20 dB improvement). Another layer would strain the click joint. On mineral subfloors only a PE vapour control layer goes underneath.
Can I install COREPEL over tiles?
Yes, over firm, flat tiles. Fill wide or deep grout joints first so they do not show through.
Is COREPEL suitable for underfloor heating?
Yes, for hydronic and suitable electric systems. The surface temperature must not exceed 27 °C. See the technical note on underfloor heating.
How large can a room be without profiles?
Up to 15 × 15 m without transition profiles, even through doorways. A 5 mm expansion gap all round is still required.
Can I install it in bathrooms and kitchens?
Yes. COREPEL SPC is waterproof right through the core. Kitchen units and built-ins must not be fixed on top of the floor.
How do I cut a plank?
Score the top with a utility knife and snap it, or cut with a fine-tooth saw. Cut edges disappear under the skirting board.
Can I install it myself?
With some skill, yes – the click system is DIY-friendly. For herringbone and glue-down PRO LINE Dryback we recommend a professional installer. Your COREPEL dealer can recommend one.