Home building technology is continuously changing and improving through research and development. R-2000 homes include the latest proven systems, products and materials; hence giving R-2000 home buyers a state-of-the-art home today with lasting value for years.
An evolving standard
Government and industry manage R-2000 technology through consultations. They involve researchers, home builders, product manufacturers and other housing experts.
These partners meet regularly to review new housing research and determine if the R-2000 Standard should be upgraded to reflect new developments. Whenever changes are made to the standard, R-2000 home builders receive additional training and technical information to help them incorporate these new improvements in the houses they build.
The R-2000 Standard is very comprehensive. There are various technical advances and options that R-2000 home builders can offer to home buyers, for example:
Controlled ventilation systems
These systems automatically adjust to changes in the indoor environment. If cooking or bathing creates too much humidity, the ventilation system automatically switches from low to high speed until the humidity falls to a pre-set level.
Windows doors and skylights play an essential role in the building envelope as the solar radiation contributes to heating the house thereby reducing the load on the heating system.
Engineered floor systems
These floors use advanced wood composites, rather than large dimensional lumbar. This not only can provide a stronger squeak-free floor, it also helps preserve our forests.
Advanced wall systems
They include pre-manufactured insulated panels others combine rigid insulation, concrete and steel. Although each system offers specific advantages, they can all offer high levels of energy efficiency.
The R-2000 quality assurance process
Becoming licensed is only the first step. R-2000 builders must subject every home they build to the rigorous R-2000 quality assurance process. This involves:
Computer analysis. Before a proposed R-2000 home can be constructed, a licensed R-2000 plans evaluator will analyse the home's design by using the HOT2000* software program. The home's design, orientation on the lot, component specifications and local climate data are used in the analysis. This process determines whether the proposed
– or –Pre-approval. Builders may alternatively select the new Pre-Approval Method. This has been developed so that a house or group of similar houses can be designed and pre-approved as meeting the energy target, although each house may have minor differences. Houses built using this method must still be individually inspected and tested before certification.
Construction inspection. After design approval, construction begins. An independent R-2000 inspector will visit the home during this process to verify that the construction conforms to the approved plans. The inspection is in addition to the regular building inspections carried out by the local municipality.
Ventilation inspection. Every R-2000 home must be equipped with a mechanical ventilation system that meets the CAN/CSA-F326 standard, such as a heat recovery ventilator (HRV). This system must be designed by a technician authorized to work on R-2000 homes. After a certified installer sets it up, an independent R-2000 inspector must test it to verify proper operation and air balancing.
Air leakage testing. Warm moist air that leaks from the interior of a home into the wall cavity can cause condensation, reducing the effectiveness of insulation and durability of the structure.
That’s why every R-2000 home, at completion, must undergo an air leakage test(sometimes referred to as a fan depressurization or blower door test) to verify that the air leakage doesn't exceed a specified level (1.5 air changes per hour at 50 pascals depressurization). This must be done by a licensed R-2000 air tester.
- Process review. Once all of these quality assurance steps are completed and the home's compliance with the R-2000 Standard is verified, the builder submits the complete R-2000 file to their provincial R-2000 office for review. If everything is in order, the file is forwarded to Natural Resources Canada, where the data is verified.
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