What is Trespa?
Trespa is the brand name of the high-pressure laminate (HPL) panels made by Trespa International in Weert, the Netherlands; its best-known exterior panel is Trespa Meteon. The panel consists of wood fibres or paper bonded with thermosetting resin, pressed under high pressure and temperature, with a weather-resistant decorative surface. In the Netherlands and Belgium “Trespa” is often used loosely for any HPL cladding panel. The Weert plant dates from 1960 and the Meteon product name from 1994.
Uses
- Facade cladding: whole elevations, spandrel panels and gables, often with open joints.
- Fascias and soffits: as a low-maintenance replacement for painted timber.
- Balconies and screens: balcony balustrade infills, privacy screens and sheds.
- Interiors: Trespa also makes laboratory worktops and interior panels, but these are separate product lines.
Installation
Trespa facade panels are designed for a ventilated rainscreen: panels on timber battens or an aluminium subframe, with an open air cavity behind and ventilation openings at the bottom and top.
- Visible fixing: facade screws (timber) or blind rivets (aluminium) with colour-matched heads. One fixing per panel is the fixed point; all others are sliding points with an oversized pre-drilled hole, so the panel can move with changes in temperature and humidity.
- Concealed fixing: approved adhesive systems on the subframe, or mechanical undercut anchors in the back of the panel.
Practical tips
- Follow the system instructions: hole sizes, edge distances and fixing centres depend on panel thickness, subframe and wind load. Use the manufacturer’s current installation guide.
- Not every hole a fixed point: the most common mistake is drilling all holes the same size. The panel cannot move and bows or cracks around the fixings.
- Never bond flat to the wall: without ventilation, moisture stays behind the panel and timber battens rot.
- Keep joints open: leave gaps between panels, including at corners and window reveals.
- Right tools: HPL is hard; cut and drill with carbide-tipped tools.
Related terms
- HPL laminate
- Rockpanel
- Facade cladding
- Facade panels
- Open-jointed cladding system
Want to learn more about construction terms? Visit our knowledge base at fredsdiyplans.com.