How to succeed in finishing your interior walls?

Who has never dreamed of perfectly smooth and elegant walls? The finish of the interior walls represents much more than a simple technical step, it is the base on which rests all the aesthetics of your habitat. Whether you embark on a new construction or refresh an existing space, the final rendering of our walls radically transforms the appearance of a room. Beyond the visual aspect, the judicious choice of materials and techniques also influences the quality of the air you breathe and the sustainability of your investment.

The different types of wall coverings

Traditional plaster

A true classic that crosses eras, traditional plaster has not said its last word in our modern interiors. This natural material has undeniable qualities that explain its longevity. Its solidity and ability to regulate humidity make it a major ally to maintain a healthy air in your home. Particularly prized in the renovation of old buildings, it allows to keep the soul and the authenticity of the premises while offering an impeccable finish. Its recyclable character will also appeal to followers of an eco-responsible approach.

Plaster plates (Placo)

The plasterboard revolution has considerably simplified contemporary projects. This ingenious system, mounted on metallic rails, combines the advantages: rapid implementation, excellent thermal and acoustic insulation performance, and remarkable adaptability to all types of configurations. Ideal for creating partitions or double existing walls, these plates however require a crucial step to reach perfection: the application of a placo plaster for interior wall which will unify the surface and prepare it to receive its final decoration.

Choose the right coating for your walls

The different types of coatings

Faced with the range of possibilities, how to find your way around? Your choice will essentially depend on the desired effect:

• The smoothing coatings, as their name suggests, will offer you a perfectly flat surface.
• Want originality? Decorative coatings will allow you to play with textures and create unique atmospheres.
• For areas sensitive to thermal loss, insulating plasters combine aesthetics and reinforced insulation.

Clear choice criteria

Do not rush to the first coating come! Several factors deserve reflection before making your choice.

The nature of the support Play a decisive role, a concrete, brick or plaster wall will not call the same solutions.

Also imagine the desired final rendering: do you prefer a smooth surface like a mirror or a texture that brings character?

Do not forget to consider the room concerned: the kitchen and the bathroom, exposed to humidity, will require products specifically resistant to these constraints.

The steps for a professional result

Support preparation

Do not burn the steps! The meticulous preparation of your support is the key to a successful finish. Take the time to thoroughly clean the surface, track the slightest crack or imperfection and treat it with care. A clean, stable and healthy support will guarantee optimal adhesion of the plaster and will avoid many disappointments thereafter.

Coating application

The time of truth has arrived. To apply your plaster in the rules of the art, take appropriate tools: plate¹ or Taloche² Depending on the product chosen. Work in sections To keep control over the thickness and uniformity of the application. Patience is your best ally: scrupulously respect the recommended drying times between layers, under penalty of seeing cracks and blisters appear.

Finishes and sanding

The final touch that makes all the difference: meticulous sanding. Armed with a fine grain abrasive paper and work the surface with regular circular movements, without pressing too much. Put a mask so as not to pray too much dust. Or, to limit dust spreading everywhere, opt for slightly damp sanding or equip yourself with a sander with integrated suction system.

Current errors to avoid

The most frequent error is to apply the plaster to an unstable or wet support. The result will not last in time and you will see your work deteriorate quickly.

Impatience is also bad advisor: shortening drying times compromises the grip between layers.

Finally, use the right tools: each plaster requires its specific equipment for optimal application.

To go further

Do you master the basics? Why not explore more creative techniques such as lime plasters or patinated effects that will give a unique personality to your interior?

Don’t forget that regular maintenance of your surfaces will considerably extend the lifespan. Nothing complicated: a simple regular dusting and, from time to time, a very slightly humid sponge passage will generally be enough to keep the initial sparkle of your walls.