Javascript must be enabled to navigate this site. Basic Specs - LiveWall Green Wall System

Below are basic written specifications for the LiveWall® Living Wall System.
Or for an effortless, lightening-fast 3-part specification, use our Spec Writer.

WallTer® Living Wall Planter Module Size & Weight (saturated and vegetated)

WallTer Standard 16″ wide planter: 16″ W x 6″ D x 10″ H (12″ o.c.), soil height 6″, soil volume 0.17 cubic feet, 15 lbs/SF (weight includes infrastructure)
WallTer Standard 8″ wide planter: 8″ W x 6″ D x 10″ H (12″ o.c.), soil height 6″, soil volume 0.087 cubic feet, 15 lbs/SF (weight includes infrastructure)
WallTer Large planter:  16”  W x 7”  D x 14” H (soil height 7”), soil volume 0.4 cubic feet, 18-22 lbs/SF (weight includes infrastructure)

WallTer Material

100% recycled post-industrial content. 150 mil. thick walls. No VOC content, extraction distance from manufacturer is appx. 100 miles. Location of manufacturing 14 miles from point of distribution.

Drainage

Outdoor Green Walls:  Positive drain holes, at lowest point in WallTer modules.
Indoor Green Walls:  Back drain at lowest point of module.

WallTer Colors

Standard Outdoor: Black, Blue Stone, Cedar, Cool Gray, Forest Green, Sage, Salsa, Sand
Indoor / Large Outdoor:  Black, Blue Stone, Forest Green, Sage, Sand

Caution: WallTer planter modules are not designed to be climbed upon. If they are used in an area where this is a possible problem, be sure to place precautionary signage in the area of the installation to warn off would-be climbers or vandals.

LiveWall Mounting Assembly

Supplied by LiveWall, LLC:
VertiRail Furring Track: 2” W x 1.5” H x up to 8′ L (side-feed) or 2″ W x 1.5″ H x up to 8′ L (rear-feed)  6063-T6 extruded z-shaped aluminum furring tracks of .1” thickness.
H-Rail Mounting Rail: 3.375” H x 0.5” D x 8′ L extruded aluminum rail with top and bottom slots in champagne anodized finish. Min. 0.1” thick (sidewall) 6063-T6 Extruded Aluminum Rail.
RainRail® Mounting Rail/Irrigation Conduit: 3.375” H x 1.5 D  x 8′ L 6063-T6 Extruded Aluminum Rail, Min. 0.1” thick (sidewall), anodized champagne finish, with integrated irrigation conduit and predrilled nozzle holes.
RainRail Fasteners: 302 SS Screw ¼ – 14 x 1.5” Button Torx  #3 – Not to exceed 5 foot pounds of torque during installation.
RainRail Mounting GapTool (Qty. 2): Custom spacers with lock used to correctly space RainRail mounting rails.
HideAway Chase Concealment Brackets (recommended): Extruded aluminum brackets used to mount irrigation chase concealment.

Sourced by Installer:
VertiRail Anchor: Appropriate wall anchor, specify non-corrosive screw, length, head, point, and type of fastener appropriate for wall application and local codes.  Some suggested fasteners are listed in our FAQ section.
HideAway Chase Facing Material: Decorative treatments which can be custom fabricated to fit the architectural style of the building. Powder coated aluminum, wood, or other suitable material may be used for this purpose.
HideAway Chase Concealment Bracket Anchors (recommended): Minimum # 10 ( 3/16”) non-corrosive screw, length, head, point, and type of fastener are dependent on wall application and local codes, and are subject to architect’s approval.

Note: LiveWall, LLC provides furring tracks which provide flexibility in living wall design over a number of different applications.
The exterior wall design and means of fastening the vertical garden to the building wall are ultimately the responsibility of the local architect and/or structural engineer and installation contractor.  For consideration, LiveWall, LLC suggests some common fasteners in the FAQ section of this website.

Acceptable Protective Underlying Materials

Outdoor LiveWall systems are designed to work in harmony with a building’s ability to breathe.  VertiRail furring tracks are to be fastened directly to an approved framing system in accord with the siding manufacturer’s and/or general contractor’s recommendations.  A contractor-sourced breathable barrier system such as Tyvek Commercial Wrap D is expected to work well with our vertical garden in many outdoor applications.
Indoor LiveWall systems should use a contractor-sourced waterproof membrane such as 20 mil polypropylene or EPDM as suitable waterproof backing materials.

Irrigation System

Supplied by LiveWall, LLC:
Irrigation Controller:  LiveWall, LLC to specify appropriately sized system for project.
Irrigation Valves: 1” Flow Control Valves
Pressure Regulator: Each valve is to be regulated to 15 psi and supply no more than  48 drip irrigation assemblies of 0.8 GPH .
Irrigation Fittings: LiveWall is designed to work with 1”   LightBlock polypropylene irrigation pipe and fittings. 
Water FilterA water filter of 150 micron size is to be installed in the irrigation feed line.
Backflow Preventer: Febco, Watts or approved equal as required for local code.
Descaling:  In cases of hard water, use phosphate descaling system to prevent irrigation system blockage or failure.

Outdoor Only:
Irrigation Nozzles
(Spaced 16″ horizontally on RainRails)1/8″ dia., 0.5 oz. brass 1″ length flood nozzles (provided). Flow volume is to be sized to installation and irrigation design: 0.2 gpm capacity, 0.15 gpm capacity, and 0.1 gpm capacity.

Indoor Only:
Drip Irrigation Assembly
(Spaced 16” horizontally on RainRails): 0.125” NPT Brass Tee fitting, and two 0.2” tubes with 0.4 GPH flow stakes (0.8 GPH total per assembly). Top row requires stakes with higher flow rates, 2.0 GPH each stake (4 GPH GPH total per assembly).
Rear Drain Assembly: 0.5” inside diameter flexible hose to connect WallTer module rear drain spouts using barbed elbow, tee, and wye [Y] fittings. Single hose drain with .75” MIPT fitting for connection to installer-supplied hose for runoff containment / disposal.

Water Quality

LiveWall recommends a low-cost, low-maintenance chemical treatment for hard water sources. Properly treated hard water poses no health risks and actually provides beneficial nutrients to plants. However, buildup of calcium or iron scaling from untreated hard water can potentially impair the flow of water through the irrigation nozzles.

For a free water test to determine the type of hardness, how much is in the water, and the cost of treating 10,000 gallons of your water, send a sample to:

CH20, Inc.
4141 Boston Harbor Rd. NE
Olympia WA, 98506
Attn. Bruce Kooi
Phone: 360-259-6493

Fertilization

Automatic Liquid Fertilization System: LiveWall, LLC to specify appropriately sized system for project.  Indoor automatically irrigated systems must be fertilized via liquid feed injector (outdoor systems may optionally include fertilizer injector unit). Fertilizer requirements will vary somewhat with the plant material and wall design.  Liquid feed is typically applied at 100-150 ppm of nitrogen with each irrigation event during the spring and summer seasons.  LiveWall to specify and supply the recommended fertilizer injector for size of project.   In outdoor systems, or with hand-watered indoor systems, fertilizer can also be manually applied as a granular topdress or incorporated into the soil.  As a rule of thumb, one teaspoon of a high quality slow release fertilizer such as Osmocote or Nutricote, per 16″ WallTer is suitable for one full season of growth when applied during spring.

Light Conditions, Plant Material and Soil

Indoor Systems:  First assure that proper lighting intensity and spectrum are specified. Then and only then specify Plant Material (in conjunction with LiveWall Design Guide), Planter Color and Soil.

Lighting: Show a diagram of light intensity across the entire LiveWall surface.  NOTE:  The most plant options are found in the range of plants that require Medium Light (see below); therefore, we recommend that the wall be evenly lit from 100 to 400 foot candles—from top to bottom and side to side.

  1. Categorize the light for the wall(s) as follows:
    1. Intense Light pertains to an indoor location within an atrium or sunroom with unshaded light throughout most of the day. This is almost equivalent to growing outdoors in full sun.
    2. Bright Light pertains to an indoor location with direct light from a south or west exposure where the plants receive 2 or more hours of direct sun, but preferably not during the hottest part of the day.
      Artificial Bright Light is approximately equal to a four tube florescent fixture in close proximity to the planting, in the range of 400 to 600+ foot candles, for 12 to 15 hours per day.
    3. Medium Light pertains to an indoor location with direct light for a couple of hours in the morning or afternoon (from east or west facing windows), or from a south facing window provided the location is several feet interior of south facing windows.
      Artificial Medium Light is approximately equal to a two tube florescent fixture, 2 or 3 feet from the foliage, in the range of 100 to 400 foot candles for 12 to 15 hours per day.
    4. Low Light pertains to an indoor location that is not close to windows or supplemental lighting—typically a north or east exposure.
      Artificial Low Light is enough to read a newspaper, in the range of 25 to 100 foot candles for 12 to 15 hours per day.
  2. Specify fixtures and bulbs.  Light fixtures should be located in front of the wall and angled toward the wall, or paired with lighting shining up from the base of the wall to create more or less even light intensity across the entire wall.  We recommend track lighting as one can easily add additional fixtures to increase light intensity.  The lights can be angled up or down to adjust the distribution of light.  And, broader-angled flood bulbs should be directed toward the top of the wall and tighter-angled spot bulbs directed toward the middle and bottom of the wall — when lighting is supplied only from the ceiling.   Acceptable light sources (bulbs) include metal halide, induction, florescent and combination metal halide/ high pressure sodium lights.  White LED lights, halogen and high pressure sodium lights do not provide a proper spectrum of light and should not be specified to light LiveWall plants.
  3. Once lighting is specified, and it is known how much light intensity will be provided, select appropriate plant material and create plant design – so as to match plants of compatible light needs, size, growth habit and moisture requirements in conjunction with the LiveWall Plant Design Guide.
  4. Specify Plant Grade: Upon delivery, plants should be rooted to the bottom of the wall planter inserts, well established so as to cover 75% of the planter box surface at the time of installation, and to be free of pest and disease organisms. Plants should be adapted to light conditions consistent with the indoor environment.
  5. Green Wall Soil for Tropical and Indoor Plants: In most cases, indoor LiveWall applications will utilize tropical plants, which are expected to last several years. LiveWall may supply a soil mix that is formulated to last for 5 or more years. Or, use a good quality potting soil with perlite or pumice and/or composted pine bark. Such soils tend to decompose less.

Outdoor Systems:  First determine lighting available to proposed wall. Then and only then specify Plant Material (in conjunction with LiveWall Design Guide), Planter Color and Soil.

    1. Classify Sun Exposure as North, South, East or West exposure, and if the light is blocked at all, by surrounding trees, building, or other structures, be sure to take this into account.
    2. Once light exposure is determined, use the LiveWall Design Guide, in conjunction with local knowledge of climate and plant performance, to select and specify plant material.
    3. Specify Plant Grade: Upon delivery, plants should be rooted to the bottom of the wall planter inserts, well established so as to cover 75 % of the planter box surface at time of installation, and be free of pest and disease organisms. Plants should be adapted to light conditions consistent with the outdoor environment.

  1. Vertical Garden Soil Blends:  It is important to use the proper type of soil with the various types of plants in each LiveWall installation. Therefore, LiveWall has recommendations for soil composition specific to the particular plant material chosen for the system. The different types of soils are designed to match the needs of the particular plant and are categorized as follows:
  • Sedums and Succulents:   Because Sedums and succulents tend to have sparse roots and may never become root-bound, they have the potential to last for decades. If the intent is to grow for a few years, specify a mix as specified for perennials. If the intent is to maintain them long-term, specify a mineral rich soil which will maintain its volume over time, similar to a green roof soil mix. LiveWall may supply a mix or refer a local formulator who carries such a mix.
  • Annuals, Vegetables and Herbs:  Annuals and vegetables require an organically rich lightweight potting soil, and there are many products available locally, or from LiveWall. Choose a lightweight mix formulated with peat or coconut coir and a lightweight mineral aggregate such as perlite to ensure proper drainage.
  • Perennials:   Because perennials, in a container, are expected to last 3 to 5 years before they become root bound and in need of dividing, you will want to use a soil that can last for a relatively long period of time before decomposing. LiveWall offers a perennial soil mix, or a good quality perennial mix may be sourced locally, and preferably formulated with composted pine bark, peat and a long-lasting porous mineral component such as perlite.

Read More > Idea Garden.

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