How long does a preserved moss wall last?

At least 10 to 15 years in a properly installed interior environment. Longevity depends on stable humidity between 40 and 60 percent, no direct sunlight, and minimal physical contact.

Does a preserved moss wall require maintenance?

No. Preserved moss requires no watering, no trimming, no irrigation system, and no ongoing intervention. It is maintenance-free by material.

How much does a custom moss wall cost in Toronto?

Pricing is project-based. Commercial installations typically start in the five-figure range depending on scale, moss type, and specification. Evergreen Escapes provides detailed quotes after a site visit and design review.

What is preserved moss?

Preserved moss is 100% natural moss that has undergone an eco-friendly preservation process using safe, biodegradable solutions. It retains its texture and appearance without water, soil, or sunlight.

Can moss walls be used in commercial offices and lobbies?

Yes. Preserved moss walls are well-suited for corporate offices, executive environments, lobbies, hospitality spaces, and luxury retail. Evergreen Escapes fabricates each installation to project drawings and coordinates with the design team.

What humidity level is required for a preserved moss wall?

Relative humidity should remain between 40 and 60 percent. The wall must be positioned at least 1.5 meters from HVAC vents or duct openings and must not be exposed to direct sunlight or continuous airflow.

Do you work from architect-supplied drawings?

Yes. Evergreen Escapes works directly from elevations, dimensions, and material schedules supplied by the design team. The process is designed to integrate with the architect's workflow.

What is the typical project timeline?

Design and fabrication typically takes 3 to 4 weeks from confirmed drawings. Complex or large-scale installations may require additional lead time. Timeline is confirmed at the design stage.

Are preserved moss walls safe for healthcare and allergy-sensitive environments?

Yes. Preserved moss is VOC-free, pesticide-free, hypoallergenic, and produces no spores or microbial growth. It is safe for hospitals, clinics, and allergy-sensitive commercial environments.

Do moss walls support WELL or LEED certification?

Evergreen Escapes does not certify projects, but works collaboratively with design teams to align preserved moss installations with WELL v2 and LEED project goals including acoustics, air quality, and biophilic design credits.

Specifying a Preserved Moss Wall: Thickness, Backing, Mounting, and Edges

Oct 31

3 min read

Architects reach the specification stage with a short list of questions that decide whether a preserved moss wall can be drawn accurately: how thick is it, what does it mount to, how does it fix to the wall, and how does the edge resolve. The answers are not complicated, but they are specific, and getting them on the drawings early is what keeps the quote accurate and the install clean.

Here is what gets specified, and what we need from you to specify it.

Thickness varies by moss type

There is no single thickness. It depends on the moss.

Flat and sheet moss sit close to the backing and read almost level. Bun/pole, and mood moss carry more dimension and project further off the wall. A composition that mixes types varies across its own face by design, which is part of what gives a custom wall its depth.

The minimum depth we work to is two inches from the wall face. Beyond that, overall thickness is confirmed per project, because it follows the composition and the moss types selected rather than a fixed panel spec. If you are detailing a reveal, a niche, or a tight meeting condition with an adjacent material, give us the constraint and we will confirm the depth against it before fabrication.

Backing is selected per project

The substrate the moss is mounted to is chosen for the project, not fixed to one material. In most cases it is MDF or a foam board, and the choice follows the piece: size, weight, how it mounts, and the wall it lands on all factor in.

This is a specification decision we confirm with you rather than a default you have to design around. If the wall assembly or weight loading matters on your end, raise it early and we will specify the backing to suit.

Mounting is direct screw in almost every case

The large majority of installations fix with a direct screw into the substrate wall. On some projects that is a direct screw combined with adhesive. Where the condition calls for it, a French cleat is used instead.

What this means for your drawings: the host wall needs to be a sound, finished substrate that will hold a mechanical fixing. If there is any question about what is behind the finish, flag it, because the fixing method is confirmed against the wall it mounts to.

Edge conditions follow the project, and we usually recommend a millwork frame

How the edge resolves depends on the project and what the client wants. Most often we recommend a millwork frame. It gives the piece a defined perimeter, resolves the edge cleanly against adjacent finishes, and reads as an intentional architectural element rather than an applied surface.

Other edge treatments are possible where the design calls for them. The frame is a recommendation, not the only option, and it is worth settling at the drawing stage because it affects both the detail and the surrounding millwork package.

Sizing is fully custom, and seams are not visible

There is no maximum panel size and no standard module. Every wall is fabricated to the project's dimensions.

Seams on larger walls are resolved on site: we fill the gaps with moss by hand during installation, so the joints are not visible in the finished surface. A large wall reads as one continuous composition, not a grid of panels. For specification, this means you do not need to design around a panel joint pattern.

What we need on the drawings

If drawings exist, provide them at the start of the project, before the quote. That is what makes the quote accurate: real dimensions, the elevation, the wall condition, and any adjacent-material or reveal constraints let us confirm thickness, backing, and fixing against the actual space.

If drawings do not exist, we can work from site measurements and a site visit. Either way, the earlier the wall is defined, the fewer assumptions carry into fabrication.

Limitations, stated plainly

A preserved moss wall is an interior installation. It is specified for indoor environments only.

It should not sit directly in front of or near a duct or vent opening. Constant airflow across the surface is the one placement condition to design out. There is no watering, misting, or humidity requirement to manage beyond that.

Documentation and fire

Supplier fire-test documentation can be provided as part of a project package where required, passed through as the supplier's own test data. We do not make independent fire-rating claims in our material; specification against a building-code requirement should be confirmed with that documentation and your consultant, not assumed from marketing copy.

Evergreen Escapes designs and builds custom preserved moss installations for commercial interiors across Toronto and Ontario, integrated to your drawings. Send your elevation and dimensions, or arrange a site visit, to confirm thickness, backing, and mounting for a specific project.