Question 1

I have a split-level - are there special considerations for windows at different heights?

Accepted Answer

Yes, split-level homes have unique window considerations due to varying heights, exposure levels, and structural differences between floors. The different elevations create distinct challenges for both installation and performance.

Ground-level and basement windows in split-levels face different moisture and security concerns than upper-level windows. Lower windows need enhanced weatherproofing and proper grading around the foundation to prevent water infiltration. These windows often benefit f

Question 2

Do townhouse windows have different requirements than freestanding houses?

Accepted Answer

Townhouse windows generally follow the same building code requirements as detached homes, but there are some important differences related to shared walls and condo corporation rules that can affect your window replacement project.

Building Code Requirements are essentially the same for townhouses and detached homes in Ottawa. The Ontario Building Code applies equally to both housing types for window specifications, energy efficiency standards, and safety requirements. You'll need the same ENER

Question 3

We're building a passive house in Ottawa - what window specs do I actually need?

Accepted Answer

For a passive house in Ottawa, you'll need windows that significantly exceed standard ENERGY STAR requirements - typically triple-pane with U-factors around 0.8 W/m²K (0.14 Btu/hr·ft²·°F) or better, which is nearly twice as efficient as standard energy-efficient windows.

Passive House window specifications require extremely low heat transfer rates to meet the rigorous energy standards. In Ottawa's Climate Zone 6, your windows need a U-factor of 0.8 W/m²K or lower, with some projects targeting 0

Question 4

Are there windows designed specifically for log homes in the Ottawa Valley area?

Accepted Answer

Yes, there are windows specifically designed for log homes that work exceptionally well in the Ottawa Valley's climate. Log home windows must accommodate the unique structural movement and settling that occurs in log construction while providing superior insulation for our harsh winters.

Log home windows feature several specialized design elements that make them ideal for timber construction. They typically include adjustable mounting systems that allow for the natural settling and movement of

Question 5

What window challenges should I expect in a 1960s bungalow?

Accepted Answer

1960s bungalows typically have single-pane aluminum windows that are drafty, inefficient, and often have failing seals or hardware. You'll likely face condensation issues, high energy bills, and difficulty opening or closing windows properly.

Window Frame and Seal Problems are the most common issues in homes from this era. The original aluminum frames conduct cold directly into your home, creating condensation that can lead to mold and rot around window openings. The glazing compound and weathe

Question 6

I'm building a laneway suite - what window requirements apply to those?

Accepted Answer

Laneway suites in Ottawa have specific window requirements under the Ontario Building Code and City of Ottawa zoning bylaws, including minimum window sizes for bedrooms, egress requirements for safety, and energy efficiency standards for new construction.

For bedroom windows in your laneway suite, the Ontario Building Code requires a minimum window area equal to 10% of the floor area, with at least 5% being openable for ventilation. Every bedroom also needs an emergency egress window - typicall

Question 7

My house is over 100 years old - what should I know about replacing those original windows?

Accepted Answer

Replacing windows in a century-old home requires special consideration for heritage character, structural integrity, and modern energy efficiency standards. Your original windows likely have unique sizing, thick sills, and may be load-bearing elements that need careful handling.

Heritage and Character Preservation
Most 100+ year old Ottawa homes feature beautiful architectural details that contribute significantly to property value. The original windows likely have specific proportions, mullion

Question 8

I want to replace windows in my condo - do I even have the right to do that?

Accepted Answer

Yes, you typically have the right to replace windows in your condo, but you'll need approval from your condo corporation first. This is one of the most common questions we get from Ottawa condo owners, and the process is more straightforward than most people think.

Condo corporation approval is mandatory because windows are usually considered part of the building's exterior envelope, even though they're inside your unit. Your condo's declaration and bylaws will specify whether windows are commo

Question 9

Do mobile homes take standard window sizes or do I need special ones?

Accepted Answer

Mobile homes typically require special windows that are different from standard residential windows. Most mobile homes use windows that are shorter in height and have specific mounting requirements designed for the thinner walls and different framing systems used in manufactured housing.

Standard mobile home windows are usually around 14 inches tall compared to standard residential windows that are often 24+ inches in height. The width dimensions can vary more widely, but common sizes include 2

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