Our story

It began with a question about shelter.

During humanitarian work in Lebanon, Diana Saleh saw how vulnerable temporary shelters could be to fire. The experience stayed with her and led her to explore the role of building materials in creating better shelter.

Diana Saleh holding a mineral panel in daylight
Diana Saleh, exploring the material.

From a question
to a material

What if the material
could do more?

Later, while studying building construction in Denmark, Diana began developing the ideas behind Rumett. Gypsum and bio-ash became the basis of a mineral panel with its own exposed surface.

The work grew into a wider question: how could an interior surface remain useful when the space around it changed?

A Rumett display with mineral panels in different tones
Exploring the possibilities of an exposed mineral surface.

A wall with another
use ahead

Make the next use
part of the first idea.

Rumett’s approach brings the visible finish and the method of fixing together. The surface is cast into the panel, and the screw connections are designed to be undone.

Removal and reuse are part of the idea from the start.

Discover the panels

Recognition for the idea / 2025

A material idea.
A design award.

Rumett won the Young Ideas category at the Danish Design Award 2025, recognising a design approach that considers both the material and its next use.

Read the award story
Diana Saleh holding the wooden Danish Design Award trophy in front of pale curtains
Diana Saleh, Danish Design Award 2025.Winner / Young Ideas

Our purpose

To make mineral surfaces that retain their value as spaces change, with character in the material and reuse in the design.

Your next chapter

What will your space become?

An idea, a floor plan, a favourite finish. Start wherever you are. We’ll work through the possibilities together.