You’ve got Questions, We’ve Got the Answers
What is Greenstone Structural Solutions?
A: Greenstone Structural Solutions is the exclusive Canadian manufacturer of this unique composite technology. Greenstone utilizes galvanized steel and EPS to achieve an insulated composite envelope for building exteriors, interior and below grade walls, interior partitions, floors, and roofs.
Greenstone’s Structural Solutions’ technology is certified by QAI. Greenstone panels can be used to achieve National Energy Code requirements, LEED certification, Green Globes and other efficiency standards.
Greenstone’s unique patented process utilizes the power of composite technology. Greenstone panels start with opposing double steel frames which are bonded with Expanded Polystyrene (EPS). The manufacturing process results in a thermally disconnected lightweight building product that provides structural framing, insulation, and a vapour barrier in one. Panels are seamlessly assembled on site in four-foot sections. Rough openings for doors and windows are framed during the manufacturing process. Every Greenstone building is designed to match your architectural drawings.
The core technology behind Greenstone has been around for over 30 years. Improvements to connections and builder-friendliness, combined with recent Canadian Energy Code requirements, and global environmental awareness has increased the demand for sustainable building practices like Greenstone.
What is Expandable Polystyrene (EPS)?
A: Expandable Polystyrene is the lightweight rigid material made by expanding polystyrene resin with steam. It is used in the construction industry for insulation and void fill for walls, foundations and roofing. The use of EPS as thermal insulation gives the Greenstone panel the following advantages:
• Lifetime permanent R-values
• High energy efficiency
• Ease of installation
• Engineered for Extreme Environments
• Inert materials not contributing to mould or bacteria
• No food value for termites and other common wood eaters
What is the cost comparison of a Greenstone Solution vs. a traditional wood structure?
A: Greenstone will provide significant savings over conventional wood construction for the following reasons:
• Substantially increased speed of construction
• Unbeatable strength to weight ratios
• Consistent thermal separation from exterior to interior climate change
• Long-term reduced utility costs
• Quality and consistent materials
• Very minimal onsite waste
• Reduced life cycle utility costs
Thermal Energy Performance
A Greenstone home tested with the standard blower door pressure of 50 Pascals’s was determined to have 35% lower air infiltration than a comparable wood frame house. Owners of Greenstone buildings have verified significant savings in utility bills.
Greenstone panels are manufactured in a controlled factory process. Each panel is inspected, measured and labelled. This assures quality control along with third party inspection services and compliance with building codes.
What is ‘thermal bridging’?
Thermal bridges are areas in walls that act as conductors, removing heat from your house. Generally these are places where a stud meets the wall, where there may be less insulation, meaning your HVAC system has to work harder to condition your space properly.
Does Greenstone Structural Solutions have in-house plans?
Due to its extreme flexibility, the panels can be incorporated into virtually any house or building design utilizing standard engineering design practices. We work with architectural drawings or designer to match our product to your design.
Does the Greenstone panel require special or different materials for finishing the structure?
No! In fact, most finishes require less work than old-fashioned wood construction. The 16″ on-centre steel stud members allow any standard exterior and interior finishing materials to be attached to the panels. Cement based plasters can be applied following manufacturers’ recommendations.
What about changes and field modifications?
Using the right tools and techniques along with common sense and good construction practices, modifications can be accomplished with ease. Knowledgeable technical assistance onsite, via phone or e-mail, is supplied for every project.
Does the Greenstone technology have an approved firewall assembly?
Yes! Greenstone has been fire tested with thermal barriers for surface burning characteristics, smoke development, room fire tests, and hourly fire test ratings, as per building code requirements. Panels have been tested as a wall system with gypsum wallboard thermal barriers for 15 minute, 1-hour, and 2-hour fire ratings. Most codes require a 15-minute minimum interior thermal barrier. Fire tests have proven that EPS gives off fewer toxins than conventional wood framing.
Have building officials approved the use of Greenstone panels?
Yes! Greenstone is widely accepted by Authorities Having Jurisdiction. If the product is new to your area, Greenstone Structural Solutions will provide all necessary documentation.
Will I need special engineering?
Greenstone Structural Solutions is an engineered building assembly specific to your project; similar to pre-engineered steel structures. Actual engineer seal requirements vary from region to region. Greenstone will be able to assist you regarding the specific requirements in your region, based on your building classification.
Some projects/regions have additional requirements for high wind load, heavy snow loads, high seismic activity, or any combination of these. Greenstone panels can be engineered to meet these additional requirements effectively.
Who can I get to build for me?
If there are no experienced Greenstone builders in your area, a competent builder/contractor would be able to complete the project. On-site technical assistance will be provided for first time builders.
How can I get an estimate for my project?
Our standard policy is to provide estimates from dimensioned architectural drawings that include a floor plan, elevations with rough opening sizes and a roof plan. Project location is required for structural calculations based on climate zone. In most cases, we adapt customers’ plans to our system in-house. The more detail we receive, the more accurate the estimate
Contact us to receive an estimate within a week of receipt of your drawings.
Once I decide to use Greenstone, how do I place my order and arrange for delivery of my project?
Once you make the decision to use Greenstone Structural Solutions for your project, Greenstone Brandon Plant will contact you with formal approval paperwork. Payment terms and the design process will be clearly outlined to you before we begin.
Your project will be processed in the order in which it was received. Turnaround time is a function of demand and complexity of the project.
The panels can be delivered directly to your job site or picked up at our plant in Brandon, Manitoba. Panels are typically shipped via flat-deck semi-trailer — shipping rates are very reasonable due to the lightweight material. Shipping via air can be arranged by Greenstone or the owner for remote or Northern locations.
Does Greenstone provide technical support once my panels are delivered?
Yes! A representative of Greenstone will be on site for the first-time installer. Your representative will be available via phone and email to review/discuss plans and technical details with you and/or your Contractor. A detailed set of shop drawings and an assembly manual is provided for every project.