Energy Performance & Green Rating Services

Energy Performance & Green Rating Services

Clearsphere provides comprehensive third party energy performance testing, inspections and green rating services for the following Energy and Green certifications available in Canada.

Energy Performance Labels
ENERGY STAR for New Homes
EnerGuide for New Homes
Home Energy Rating System (HERS)

Green Labels
LEED Canada for Homes – new and existing homes (major renovations)
GreenHouse – new homes
R-2000 – new homes

Energy Performance Testing (Air Tightness)

An air tightness test is required for all the energy and green certifications in Canada.  Air leakage can account for up to 30% of the heat loss in many homes, meaning increased costs for heating and cooling and is also a major contributor of many comfort problems, building failures and mold concerns.  A blower door test will rate your house for air tightness and help identify the areas where air leakage is occurring for existing and new homes.  A blower door test is required to achieve all of the energy performance labels and green labels, all of which have minimum air tightness requirements.

How a Blower Door Test Works
The blower-door fan is temporarily sealed into an exterior doorway using the door-panel system.  The fan is used to blow air into or out of the building, which creates a small pressure difference between inside and outside.  This pressure difference forces air through all holes and penetrations in the building enclosure.  The tighter the building (e.g. fewer holes), the less air is needed from the blower door fan to create a change in building pressure.  Clearsphere uses the Minneapolis Blower Door.

HVAC Performance Testing

HRV Balancing
HRV balancing is proceedure to determine if your HRV is delivering equal fresh air flow with exhaust flow. Third party verification that the HRV is balanced properly is a component of many of the certifications.

Air Distribution and Balancing

HVAC performance testing is optional. Air distribution and balancing is a process that measures and adjusts the supply air distribution of a given HVAC system. The purpose of testing and balancing an HVAC system is to supply each conditioned zone with the precise amount of supply air required to offset a given heat gain (or loss).  This process is typically performed after an HVAC system has been installed.  The amount of airflow into each zone is determined from the mechanical design plans.  The benefit of air balancing is the prevention of occupant thermal discomfort.  If occupant thermal discomfort exists in a building with a properly sized and balanced HVAC system, fine tuning adjustments to supply registers may be necessary to satisfy all occupants. This is especially true with air conditioning.


If you’re interested in our Energy Performance & Green Rating Service, please Contact Us.