Can you wallpaper over a sound absorber?
Wallpapering over a sound absorber is possible, but it requires the right materials and techniques to preserve the acoustic performance while achieving an aesthetically pleasing result. Sound-absorbing materials are porous and flexible, making them effective at reducing reverberation and noise. However, if covered with the wrong type of wallpaper, their acoustic properties can be compromised.
To successfully wallpaper a sound absorber, a balanced approach is needed that maintains both aesthetics and functionality. Here, we explain what to consider before applying wallpaper to a sound-absorbing surface.
Challenges of wallpapering over sound absorbers
Sound absorbers are designed to capture and dampen sound waves through their open and porous structure. Applying a surface layer that blocks sound waves from reaching the absorber can significantly reduce its effectiveness. Some of the most common challenges include:
Adhesion and stability
Sound-absorbing materials can be soft and flexible, making it difficult to apply wallpaper evenly without bubbles, creases, or irregularities.
Reduced sound absorption
Dense wallpapers can clog the pores of the absorber, limiting its ability to absorb sound waves.
Material durability
If the wallpaper doesn’t adhere properly, it may peel over time, causing both aesthetic and functional issues.
To avoid these problems, choose the right type of wallpaper, adhesive, and possibly a supporting layer between the absorber and wallpaper.
What type of wallpaper works best on a sound absorber?
Not all wallpapers perform equally well on sound-absorbing materials. To maintain the acoustic effect, choose a breathable and lightweight wallpaper that doesn’t block sound waves completely. The best options include:
Micro-perforated wallpapers
These have small perforations that allow sound to pass through, preserving some of the absorption properties.
Thin, breathable wallpapers
Lighter wallpapers that don’t form a dense barrier are better than heavy vinyl types.
Acoustic fabric wallpapers
Some textile wallpapers are specifically designed to work with sound-absorbing materials and may be a good alternative.
Wallpapers to avoid
Vinyl and thick, dense wallpapers
These completely block the absorber and significantly reduce sound absorption.
Stiff paper wallpaper
It can be difficult to attach to a flexible surface without creating bubbles.
For the best results, test the wallpaper on a small area before applying it across the entire sound absorber.
How to get wallpaper to stick to sound absorbers
Since sound-absorbing materials are often soft and porous, getting wallpaper to adhere can be challenging. Here are some solutions for achieving an even and durable result:
Use a thin, perforated fabric as a base layer
If the absorber is too soft, a stabilizing fabric or thin board can be applied between the absorber and the wallpaper. This creates a smoother surface without completely blocking sound absorption.
Choose the right adhesive
A high-quality, strong adhesive suitable for porous surfaces will help the wallpaper adhere better. Avoid water-based adhesives that may be absorbed by the sound absorber and cause unevenness.
Apply adhesive to both wallpaper and surface
Applying adhesive to both the wallpaper and the absorber creates a stronger bond and prevents peeling.
Even pressure during installation
Avoid pressing too hard, as this may deform the sound absorber and reduce its effectiveness.
Alternative solutions for combining aesthetics and sound absorption
If the goal is to combine sound absorption with a visually appealing surface, there are more options than traditional wallpapering:
Fabric-covered sound absorbers
An alternative to wallpaper is choosing absorbers with an integrated textile surface, offering a softer and more stylish look.
Painting with acoustic paint
Some specially developed paints have sound-absorbing properties and may be a better option than wallpaper.
Decorative acoustic panels
Instead of wallpaper, use acoustic wall panels in various colors and patterns for a visually appealing and functional solution.
By choosing the right method and materials, you can enhance the acoustic environment while maintaining a stylish interior without compromising sound absorption.