Prescriptive Path

To receive an incentive through Power Smart for New Homes, the Prescriptive Path requires the following 10 building and technology upgrades. These upgrades work together to help your home perform approximately 20 per cent better than a conventional new home in Manitoba.

Insulation levels are stated in effective, not nominal, terms. For effective R-value calculators, visit:

Increased attic insulation: R-58 effective

  • Any building code-compliant approach to achieving R-58 effective attic insulation is eligible.
  • Not eligible for trade off.

Increased exterior above grade wall insulation: R-17 effective

  • Any building code-compliant approach to achieving an R-17 effective wall assembly is eligible, including 2x4 and 2x6 wall assemblies. For example:
    • R-22 batt insulation (2x6, R-22 nom, 24"o.c.);
    • spray foam insulation (incl. flash and fill);
    • exterior rigid foam insulation;
    • double wall construction;
    • ICF walls;
    • SIPs.
  • Not eligible for trade off.

Increased floor header (rim joist) insulation: R-18 effective

  • Commonly achieved through the application of spray foam in the headers, or exterior insulation;
  • Not eligible for trade off.

Increased basement insulation: R-18 effective

  • Any building code-compliant approach to achieving an R-18 effective basement wall assembly is eligible. Slab on grade systems will be reviewed for insulation detailing. For example, for basement walls:
    • batt insulation (traditional wall);
    • spray foam insulation (traditional wall);
    • exterior rigid foam insulation (may be combined with interior insulation);
    • ICF walls;
    • SIPs.
  • Not eligible for trade off.

Basement slab edge thermal break: R-5 effective

  • A thermal break of at least R-5 effective located at the slab edge. The intent is to minimize thermal bridging, which can also be achieved with ICFs, SIPs, or the insulated wall assembly to which a suspended floor abuts.
    • Slab on grade systems will be reviewed for insulation detailing.
  • Not eligible for trade off.

Tested air tightness of less than 1.5 air changes per hour

  • Air tightness will be tested by a program evaluator at completion using blower door equipment. If the home does not initially meet the 1.5 ACH requirement, the evaluator will identify any potential problem areas and perform a subsequent test at the request of the applicant. Only one repeat test will be funded by the program. Should a second test fail, further testing will be at the expense of the applicant.
  • Not eligible for trade off.

Windows must be triple glazed, low-e, argon, with low conductivity frame and spacer

  • Window inserts in a door are not included in the window requirement. For any questions about eligibility on specific windows, email us.
  • Patio doors are big windows so we do require those windows to meet the standard.
  • Egress windows under 9 ft2 are acceptable as dual pane low-e argon.

High efficient heat recovery ventilation (HRV) with SRE 65 per cent or better

  • Manufacturer's literature should state an efficiency of SRE 65 at 0°C and −25°C.
  • Not eligible for trade off.

HRV advanced controls

  • HRV advanced controls should have the ability to operate the HRV in standby mode (no low speed fan) or intermittent operation (20 minutes per hour) and still run if required by the de-humidistat or the bathroom controls.
  • HRV controls integrated into smart thermostats are eligible.
  • Not eligible for trade off (this may change as new controls/systems arrive).

LED lighting throughout

  • Common use areas include kitchen, living room, entryway, main hall, bathrooms, and exterior locations.
  • LED lighting replacing the equivalent of 25 non-LED sockets is also acceptable.
  • Not eligible for trade off.

Reduced thermal bridging

In order to receive recognition for energy savings resulting from diligent thermal detailing, the builder will identify and incorporate a minimum of 4 of the following:

  • insulation is in full contact with air barrier;
  • wind wash of insulation is prevented;
  • foam gun or 2-part foam used;
  • corners use two studs only;
  • framing at 24" o.c.;
  • the house is "solar ready";
  • solar orientation was incorporated into the design;
  • exterior insulating sheathing or other continuous unbroken layer of insulation used;
  • what was used for pre-formed or site-built pan flashing (sloped sill, back dam, or both);
  • type of tape was used on the building wrap;
  • how many tonnes of waste left the jobsite;
  • how much insulation was added to headers;
  • air barrier materials used (list a minimum of 4);
  • all measures undertaken to avoid thermal bridging.

This information will be appended to the Prescriptive Path Completion Declaration and will be submitted for review at project completion.