Company Passive Home

Passive House Standards

August 14, 2026

As environmental awareness continues to grow, more homeowners are looking for ways to reduce their ecological footprint when building a new home. One of the most effective ways to achieve this is by building to the Passive House standard.

If you’re unfamiliar with the concept, a Passive House is designed to be as energy efficient as possible. These homes and buildings are ultra-low-energy structures that require minimal heating and cooling while maintaining exceptional comfort and indoor air quality.

WHAT IT TAKES:
To qualify for the Passive House standard, a building must meet rigorous performance requirements and incorporate several key design elements:

High-performance insulation
Energy-efficient windows
Airtight construction
Heat recovery ventilation (HRV)
Thermal bridge-free design

Depending on the certification path you choose, specific requirements may vary. Under the German Passive House standard, a building must achieve fewer than 0.6 air changes per hour at a pressure difference of 50 Pascals, based on the home’s volume. The North American standard measures airtightness differently, using a target of 0.05 cubic feet per minute per square foot of service area.

One of the most common tests performed on Passive House projects is the blower door test. During this test, air is extracted from the home via suction, creating a pressure difference between the interior and exterior (that is, there is more pressure outside of the home compared to inside). This process measures how much air leaks into the building envelope.

In a typical North American home with conventional windows and doors, openings are often one of the largest sources of air leakage. Access Windows and Doors address this challenge through a system of three compression seals, including a continuous centre seal that leaves virtually no pathway for air infiltration. Multiple locking points around the perimeter also help maintain a tight seal and improve overall performance.

Access Doors are available with two sill options:

A 56 mm fiberglass sill designed to prevent freezing in extremely cold climates.
A 20 mm aluminum sill suited for regions with milder winters.

Both options incorporate compression seals to minimize air leakage and support Passive House performance requirements.

BENEFITS OF A PASSIVE HOUSE:
While lower heating and cooling costs are often the most obvious advantage, Passive House construction offers several additional benefits.

Better Air Quality – Because Passive Houses are built to be exceptionally airtight, they rely on advanced ventilation systems to continuously introduce fresh air while removing pollutants. This creates a healthier indoor environment with clean, comfortable air year-round.

Better Sound Insulation – The enhanced insulation and high-performance windows used in Passive House construction significantly reduce outside noise. Much like air, sound travels through even the smallest gaps and openings. Properly sealed windows and doors help create a quieter and more peaceful living space.

Increased Security – Access Windows and Doors are designed not only to support Passive House performance but also to provide enhanced security. Multiple locking points make forced entry more difficult, while the strength of the frame construction limits potential access points. Combined with durable, high-quality triple-pane glass that resists breakage, our windows and doors become a highly undesirable point of entry and can help deter potential intruders.

PROCESS:
If you’ve decided to build a Passive House, it is important to work with a builder who understands the standard and has experience delivering high-performance homes. Knowledgeable builders are familiar with the protocols, testing requirements, and construction techniques needed to achieve a truly energy-efficient build.

While high-quality windows and doors are among the most critical components of a Passive House, they are only one part of the equation. Every aspect of the building envelope must be carefully designed and constructed to eliminate air leakage and maximize efficiency.

We’ve found that homeowners pursuing Passive House construction often invest significant time researching best practices and selecting architects, builders, and consultants who specialize in this type of project. Successful Passive House construction requires everyone involved to work toward the same goal from the very beginning. A Passive House cannot simply become a Passive House halfway through construction. Design decisions, material selections, construction methods, and inspections must all support the standard from day one.

ACCESS WINDOW AND DOOR DESIGN CENTRE:

At Access Window and Door Design Centre, we’ve always held our products to the highest standards and take pride in the fact that our windows and doors are regularly specified for Passive House projects. As mentioned earlier, windows and doors alone do not determine whether a home meets Passive House standards. However, they are among the most significant contributors to overall energy performance.

Our windows are available with three glazing options:

A coating that blocks most solar heat gain
A coating that allows moderate solar heat gain
A coating that maximizes solar heat gain

Because most homes include south-facing windows, selecting the appropriate glazing is essential. During the colder months, solar heat gain through south-facing windows can help warm the home naturally, reducing heating demands. To prevent overheating during warmer seasons, we often recommend roof overhangs above south-facing windows. Properly designed overhangs provide shade during summer months while still allowing beneficial sunlight to enter during winter.

Many homeowners who adopt Passive House principles choose not to pursue formal certification. Instead, their goal is to reduce their environmental impact, lower energy consumption, and create a more comfortable home. Whether you’re aiming for official Passive House certification or simply looking to improve your home’s energy performance, our team is here to help. We’ll guide you through the options available to reduce energy costs, improve comfort, and minimize your ecological footprint.

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